./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-memsafety/cstrcat_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/cstrcat_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 8bca29efe4e2caa04afbd06c4ca0de4d513af778 ........................................................................................................................................................................................................................ 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 [2019-01-13 21:55:47,348 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 21:55:47,349 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 21:55:47,362 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 21:55:47,362 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 21:55:47,363 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 21:55:47,365 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 21:55:47,367 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 21:55:47,369 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 21:55:47,370 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 21:55:47,371 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 21:55:47,371 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 21:55:47,372 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 21:55:47,374 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 21:55:47,375 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 21:55:47,376 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 21:55:47,377 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 21:55:47,379 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 21:55:47,382 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 21:55:47,384 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 21:55:47,385 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 21:55:47,387 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 21:55:47,390 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 21:55:47,390 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 21:55:47,391 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 21:55:47,392 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 21:55:47,393 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 21:55:47,394 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 21:55:47,395 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 21:55:47,397 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 21:55:47,397 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 21:55:47,398 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 21:55:47,398 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 21:55:47,399 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 21:55:47,400 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 21:55:47,401 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 21:55:47,401 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-13 21:55:47,421 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 21:55:47,422 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 21:55:47,423 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 21:55:47,423 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 21:55:47,423 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 21:55:47,425 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 21:55:47,425 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 21:55:47,425 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-13 21:55:47,425 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 21:55:47,426 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 21:55:47,427 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 21:55:47,427 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-13 21:55:47,427 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-13 21:55:47,427 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-13 21:55:47,428 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 21:55:47,428 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 21:55:47,428 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 21:55:47,428 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 21:55:47,428 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 21:55:47,429 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 21:55:47,429 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 21:55:47,429 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 21:55:47,429 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 21:55:47,429 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 21:55:47,430 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 21:55:47,431 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 21:55:47,432 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 -> 8bca29efe4e2caa04afbd06c4ca0de4d513af778 [2019-01-13 21:55:47,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 21:55:47,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 21:55:47,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 21:55:47,498 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 21:55:47,498 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 21:55:47,499 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/cstrcat_unsafe_false-valid-deref.i [2019-01-13 21:55:47,556 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/642f1ea20/f5acefbfd8b94cbcbb59a2937c2b1aae/FLAG6c7e03964 [2019-01-13 21:55:48,039 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 21:55:48,040 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/cstrcat_unsafe_false-valid-deref.i [2019-01-13 21:55:48,046 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/642f1ea20/f5acefbfd8b94cbcbb59a2937c2b1aae/FLAG6c7e03964 [2019-01-13 21:55:48,543 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/642f1ea20/f5acefbfd8b94cbcbb59a2937c2b1aae [2019-01-13 21:55:48,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 21:55:48,549 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-13 21:55:48,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 21:55:48,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 21:55:48,557 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 21:55:48,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425dcf3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48, skipping insertion in model container [2019-01-13 21:55:48,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 21:55:48,590 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 21:55:48,795 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 21:55:48,808 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 21:55:48,822 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 21:55:48,839 INFO L195 MainTranslator]: Completed translation [2019-01-13 21:55:48,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48 WrapperNode [2019-01-13 21:55:48,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 21:55:48,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 21:55:48,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 21:55:48,841 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 21:55:48,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48" (1/1) ... [2019-01-13 21:55:48,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 21:55:48,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 21:55:48,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 21:55:48,882 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 21:55:48,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48" (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 [2019-01-13 21:55:49,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-13 21:55:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 21:55:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrcat [2019-01-13 21:55:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-13 21:55:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure cstrcat [2019-01-13 21:55:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-13 21:55:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-13 21:55:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-13 21:55:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-13 21:55:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 21:55:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 21:55:49,373 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 21:55:49,373 INFO L286 CfgBuilder]: Removed 2 assue(true) statements. [2019-01-13 21:55:49,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:55:49 BoogieIcfgContainer [2019-01-13 21:55:49,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 21:55:49,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 21:55:49,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 21:55:49,379 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 21:55:49,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 09:55:48" (1/3) ... [2019-01-13 21:55:49,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4795f2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 09:55:49, skipping insertion in model container [2019-01-13 21:55:49,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 09:55:48" (2/3) ... [2019-01-13 21:55:49,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4795f2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 09:55:49, skipping insertion in model container [2019-01-13 21:55:49,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:55:49" (3/3) ... [2019-01-13 21:55:49,382 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrcat_unsafe_false-valid-deref.i [2019-01-13 21:55:49,391 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 21:55:49,399 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-01-13 21:55:49,413 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-01-13 21:55:49,438 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 21:55:49,438 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 21:55:49,439 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-13 21:55:49,439 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 21:55:49,439 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 21:55:49,439 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 21:55:49,439 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 21:55:49,440 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 21:55:49,440 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 21:55:49,455 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-01-13 21:55:49,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-13 21:55:49,465 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 21:55:49,466 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 21:55:49,469 INFO L423 AbstractCegarLoop]: === Iteration 1 === [cstrcatErr0REQUIRES_VIOLATION, cstrcatErr5REQUIRES_VIOLATION, cstrcatErr1REQUIRES_VIOLATION, cstrcatErr3REQUIRES_VIOLATION, cstrcatErr2REQUIRES_VIOLATION, cstrcatErr4REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-13 21:55:49,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 21:55:49,476 INFO L82 PathProgramCache]: Analyzing trace with hash 543632158, now seen corresponding path program 1 times [2019-01-13 21:55:49,478 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 21:55:49,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 21:55:49,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:55:49,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 21:55:49,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 21:55:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-13 21:55:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-13 21:55:49,597 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-13 21:55:49,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 09:55:49 BoogieIcfgContainer [2019-01-13 21:55:49,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 21:55:49,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 21:55:49,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 21:55:49,622 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 21:55:49,622 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 09:55:49" (3/4) ... [2019-01-13 21:55:49,625 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-13 21:55:49,665 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 21:55:49,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 21:55:49,667 INFO L168 Benchmark]: Toolchain (without parser) took 1119.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -141.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 21:55:49,669 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. [2019-01-13 21:55:49,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.35 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:49,671 INFO L168 Benchmark]: Boogie Preprocessor took 40.94 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 21:55:49,672 INFO L168 Benchmark]: RCFGBuilder took 492.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:49,673 INFO L168 Benchmark]: TraceAbstraction took 245.34 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-01-13 21:55:49,674 INFO L168 Benchmark]: Witness Printer took 45.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 21:55:49,679 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 289.35 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.94 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 492.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 245.34 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 45.02 ms. Allocated memory is still 1.2 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: 4]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L11] char *s1; [L12] char *s2; [L13] CALL cstrcat(s1, s2) VAL [s1={5:6}, s2={8:3}] [L3] char *s = s1; VAL [s={5:6}, s1={5:6}, s1={5:6}, s2={8:3}, s2={8:3}] [L4] \read(*s) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 7 error locations. UNSAFE Result, 0.1s 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=29occurred 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, 9 NumberOfCodeBlocks, 9 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...