./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-memsafety/cstrncpy_unsafe_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/array-memsafety/cstrncpy_unsafe_false-valid-deref.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c81e125b758f7bd46f8766ed5eff061983b5b8e8 ............................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 18:07:20,232 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 18:07:20,234 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 18:07:20,247 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 18:07:20,249 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 18:07:20,250 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 18:07:20,254 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 18:07:20,257 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 18:07:20,260 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 18:07:20,261 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 18:07:20,264 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 18:07:20,264 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 18:07:20,265 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 18:07:20,266 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 18:07:20,269 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 18:07:20,271 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 18:07:20,272 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 18:07:20,275 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 18:07:20,285 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 18:07:20,290 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 18:07:20,291 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 18:07:20,295 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 18:07:20,298 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 18:07:20,300 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 18:07:20,300 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 18:07:20,301 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 18:07:20,303 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 18:07:20,306 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 18:07:20,308 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 18:07:20,309 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 18:07:20,309 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 18:07:20,312 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 18:07:20,312 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 18:07:20,313 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 18:07:20,314 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 18:07:20,314 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 18:07:20,316 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-14 18:07:20,341 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 18:07:20,342 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 18:07:20,344 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 18:07:20,345 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 18:07:20,346 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 18:07:20,346 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 18:07:20,346 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 18:07:20,347 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 18:07:20,347 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 18:07:20,348 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 18:07:20,348 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 18:07:20,348 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-14 18:07:20,348 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-14 18:07:20,348 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-14 18:07:20,348 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 18:07:20,349 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 18:07:20,350 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 18:07:20,351 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 18:07:20,351 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 18:07:20,351 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 18:07:20,352 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 18:07:20,352 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 18:07:20,352 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 18:07:20,352 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 18:07:20,352 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 18:07:20,352 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> c81e125b758f7bd46f8766ed5eff061983b5b8e8 [2019-01-14 18:07:20,416 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 18:07:20,430 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 18:07:20,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 18:07:20,439 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 18:07:20,439 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 18:07:20,440 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/cstrncpy_unsafe_false-valid-deref.i [2019-01-14 18:07:20,502 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5f8288cc/bc91c1318a4b49c685ea91874d6a07ff/FLAG8ccbecc10 [2019-01-14 18:07:20,880 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 18:07:20,881 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/cstrncpy_unsafe_false-valid-deref.i [2019-01-14 18:07:20,887 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5f8288cc/bc91c1318a4b49c685ea91874d6a07ff/FLAG8ccbecc10 [2019-01-14 18:07:21,291 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5f8288cc/bc91c1318a4b49c685ea91874d6a07ff [2019-01-14 18:07:21,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 18:07:21,300 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-14 18:07:21,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 18:07:21,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 18:07:21,306 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 18:07:21,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 06:07:21" (1/1) ... [2019-01-14 18:07:21,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a4eb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 06:07:21, skipping insertion in model container [2019-01-14 18:07:21,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 06:07:21" (1/1) ... [2019-01-14 18:07:21,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 18:07:21,341 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 18:07:21,586 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 18:07:21,606 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 18:07:21,628 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 18:07:21,646 INFO L195 MainTranslator]: Completed translation [2019-01-14 18:07:21,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 06:07:21 WrapperNode [2019-01-14 18:07:21,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 18:07:21,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 18:07:21,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 18:07:21,649 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 18:07:21,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 06:07:21" (1/1) ... [2019-01-14 18:07:21,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 06:07:21" (1/1) ... [2019-01-14 18:07:21,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 06:07:21" (1/1) ... [2019-01-14 18:07:21,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 06:07:21" (1/1) ... [2019-01-14 18:07:21,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 06:07:21" (1/1) ... [2019-01-14 18:07:21,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 06:07:21" (1/1) ... [2019-01-14 18:07:21,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 06:07:21" (1/1) ... [2019-01-14 18:07:21,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 18:07:21,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 18:07:21,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 18:07:21,702 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 18:07:21,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 06:07:21" (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 18:07:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-14 18:07:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 18:07:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrncpy [2019-01-14 18:07:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-14 18:07:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-14 18:07:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure cstrncpy [2019-01-14 18:07:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 18:07:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 18:07:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-14 18:07:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-14 18:07:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 18:07:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 18:07:22,274 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 18:07:22,274 INFO L286 CfgBuilder]: Removed 2 assue(true) statements. [2019-01-14 18:07:22,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 06:07:22 BoogieIcfgContainer [2019-01-14 18:07:22,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 18:07:22,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 18:07:22,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 18:07:22,280 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 18:07:22,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 06:07:21" (1/3) ... [2019-01-14 18:07:22,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b503a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 06:07:22, skipping insertion in model container [2019-01-14 18:07:22,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 06:07:21" (2/3) ... [2019-01-14 18:07:22,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b503a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 06:07:22, skipping insertion in model container [2019-01-14 18:07:22,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 06:07:22" (3/3) ... [2019-01-14 18:07:22,285 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrncpy_unsafe_false-valid-deref.i [2019-01-14 18:07:22,297 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 18:07:22,305 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-01-14 18:07:22,324 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-01-14 18:07:22,353 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 18:07:22,354 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 18:07:22,354 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-14 18:07:22,354 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 18:07:22,355 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 18:07:22,355 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 18:07:22,355 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 18:07:22,356 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 18:07:22,356 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 18:07:22,373 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-01-14 18:07:22,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 18:07:22,384 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 18:07:22,385 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 18:07:22,388 INFO L423 AbstractCegarLoop]: === Iteration 1 === [cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-14 18:07:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 18:07:22,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1937036803, now seen corresponding path program 1 times [2019-01-14 18:07:22,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 18:07:22,397 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 18:07:22,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 18:07:22,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 18:07:22,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 18:07:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 18:07:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 18:07:22,549 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 18:07:22,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 06:07:22 BoogieIcfgContainer [2019-01-14 18:07:22,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 18:07:22,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 18:07:22,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 18:07:22,583 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 18:07:22,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 06:07:22" (3/4) ... [2019-01-14 18:07:22,587 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 18:07:22,647 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 18:07:22,648 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 18:07:22,649 INFO L168 Benchmark]: Toolchain (without parser) took 1349.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -121.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 18:07:22,653 INFO L168 Benchmark]: CDTParser took 0.17 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 18:07:22,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.64 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 18:07:22,654 INFO L168 Benchmark]: Boogie Preprocessor took 53.46 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 18:07:22,655 INFO L168 Benchmark]: RCFGBuilder took 574.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-01-14 18:07:22,655 INFO L168 Benchmark]: TraceAbstraction took 305.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-01-14 18:07:22,657 INFO L168 Benchmark]: Witness Printer took 66.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 18:07:22,665 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 345.64 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 Preprocessor took 53.46 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 574.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 305.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 66.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L21] char *s1; [L22] char *s2; [L23] int n = __VERIFIER_nondet_int(); [L24] CALL cstrncpy(s1, s2, n) VAL [\old(n)=1, s1={5:-2}, s2={4:-1}] [L4] char *dst = s1; [L5] const char *src = s2; [L6] char *us; [L7] int n2; VAL [\old(n)=1, dst={5:-2}, n=1, s1={5:-2}, s1={5:-2}, s2={4:-1}, s2={4:-1}, src={4:-1}] [L8] COND TRUE n > 0 [L9] n-- [L10] dst++ [L10] src++ - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 7 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=31occurred 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, 10 NumberOfCodeBlocks, 10 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...