java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrncpy_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 16:57:50,326 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 16:57:50,327 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 16:57:50,338 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 16:57:50,338 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 16:57:50,339 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 16:57:50,340 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 16:57:50,341 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 16:57:50,343 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 16:57:50,343 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 16:57:50,344 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 16:57:50,344 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 16:57:50,345 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 16:57:50,346 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 16:57:50,347 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 16:57:50,348 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 16:57:50,349 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 16:57:50,351 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 16:57:50,352 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 16:57:50,352 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 16:57:50,354 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 16:57:50,354 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 16:57:50,354 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 16:57:50,355 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 16:57:50,356 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 16:57:50,356 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 16:57:50,357 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 16:57:50,357 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 16:57:50,358 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 16:57:50,358 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 16:57:50,358 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 16:57:50,359 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-04-10 16:57:50,376 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 16:57:50,376 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 16:57:50,377 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 16:57:50,377 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 16:57:50,377 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 16:57:50,377 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 16:57:50,378 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 16:57:50,378 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 16:57:50,378 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 16:57:50,378 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 16:57:50,378 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 16:57:50,378 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 16:57:50,378 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 16:57:50,379 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 16:57:50,379 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 16:57:50,379 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 16:57:50,379 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 16:57:50,379 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 16:57:50,379 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 16:57:50,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 16:57:50,380 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 16:57:50,380 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-04-10 16:57:50,380 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-04-10 16:57:50,380 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 16:57:50,405 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 16:57:50,414 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 16:57:50,418 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 16:57:50,419 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 16:57:50,419 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 16:57:50,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrncpy_unsafe_false-valid-deref.i [2018-04-10 16:57:50,694 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGddfaa28f0 [2018-04-10 16:57:50,774 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 16:57:50,774 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 16:57:50,774 INFO L168 CDTParser]: Scanning cstrncpy_unsafe_false-valid-deref.i [2018-04-10 16:57:50,775 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 16:57:50,775 INFO L215 ultiparseSymbolTable]: [2018-04-10 16:57:50,775 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 16:57:50,775 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrncpy_unsafe_false_valid_deref_i__ ('') in cstrncpy_unsafe_false-valid-deref.i [2018-04-10 16:57:50,775 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrncpy_unsafe_false-valid-deref.i [2018-04-10 16:57:50,775 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 16:57:50,776 INFO L233 ultiparseSymbolTable]: [2018-04-10 16:57:50,790 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGddfaa28f0 [2018-04-10 16:57:50,794 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 16:57:50,795 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 16:57:50,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 16:57:50,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 16:57:50,801 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 16:57:50,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 04:57:50" (1/1) ... [2018-04-10 16:57:50,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa81c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:50, skipping insertion in model container [2018-04-10 16:57:50,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 04:57:50" (1/1) ... [2018-04-10 16:57:50,815 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 16:57:50,825 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 16:57:50,942 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 16:57:50,964 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 16:57:50,969 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-10 16:57:50,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:50 WrapperNode [2018-04-10 16:57:50,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 16:57:50,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 16:57:50,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 16:57:50,977 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 16:57:50,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:50" (1/1) ... [2018-04-10 16:57:50,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:50" (1/1) ... [2018-04-10 16:57:50,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:50" (1/1) ... [2018-04-10 16:57:50,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:50" (1/1) ... [2018-04-10 16:57:50,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:50" (1/1) ... [2018-04-10 16:57:51,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:50" (1/1) ... [2018-04-10 16:57:51,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:50" (1/1) ... [2018-04-10 16:57:51,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 16:57:51,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 16:57:51,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 16:57:51,005 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 16:57:51,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:50" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-04-10 16:57:51,047 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 16:57:51,047 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 16:57:51,048 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrncpy [2018-04-10 16:57:51,048 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 16:57:51,048 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-10 16:57:51,048 INFO L128 BoogieDeclarations]: Found specification of procedure cstrncpy [2018-04-10 16:57:51,048 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 16:57:51,048 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 16:57:51,048 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 16:57:51,048 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 16:57:51,048 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 16:57:51,049 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 16:57:51,049 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 16:57:51,237 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 16:57:51,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 04:57:51 BoogieIcfgContainer [2018-04-10 16:57:51,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 16:57:51,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 16:57:51,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 16:57:51,240 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 16:57:51,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 04:57:50" (1/3) ... [2018-04-10 16:57:51,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0b33b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 04:57:51, skipping insertion in model container [2018-04-10 16:57:51,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:50" (2/3) ... [2018-04-10 16:57:51,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0b33b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 04:57:51, skipping insertion in model container [2018-04-10 16:57:51,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 04:57:51" (3/3) ... [2018-04-10 16:57:51,243 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrncpy_unsafe_false-valid-deref.i [2018-04-10 16:57:51,249 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-10 16:57:51,255 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-04-10 16:57:51,279 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 16:57:51,279 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 16:57:51,279 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 16:57:51,280 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-04-10 16:57:51,280 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-10 16:57:51,280 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 16:57:51,280 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 16:57:51,280 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 16:57:51,280 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 16:57:51,280 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 16:57:51,289 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-04-10 16:57:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-10 16:57:51,296 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:57:51,296 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:57:51,297 INFO L408 AbstractCegarLoop]: === Iteration 1 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-10 16:57:51,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1931455943, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 16:57:51,308 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 16:57:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 16:57:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 16:57:51,371 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-10 16:57:51,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 04:57:51 BoogieIcfgContainer [2018-04-10 16:57:51,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 16:57:51,391 INFO L168 Benchmark]: Toolchain (without parser) took 596.79 ms. Allocated memory was 404.2 MB in the beginning and 593.0 MB in the end (delta: 188.7 MB). Free memory was 342.6 MB in the beginning and 539.2 MB in the end (delta: -196.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 16:57:51,392 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 404.2 MB. Free memory is still 362.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 16:57:51,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.40 ms. Allocated memory is still 404.2 MB. Free memory was 342.6 MB in the beginning and 334.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-04-10 16:57:51,393 INFO L168 Benchmark]: Boogie Preprocessor took 28.02 ms. Allocated memory is still 404.2 MB. Free memory was 334.7 MB in the beginning and 332.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-10 16:57:51,393 INFO L168 Benchmark]: RCFGBuilder took 232.74 ms. Allocated memory was 404.2 MB in the beginning and 593.0 MB in the end (delta: 188.7 MB). Free memory was 332.0 MB in the beginning and 558.3 MB in the end (delta: -226.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 5.3 GB. [2018-04-10 16:57:51,394 INFO L168 Benchmark]: TraceAbstraction took 152.39 ms. Allocated memory is still 593.0 MB. Free memory was 558.3 MB in the beginning and 539.2 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 5.3 GB. [2018-04-10 16:57:51,397 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 404.2 MB. Free memory is still 362.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 180.40 ms. Allocated memory is still 404.2 MB. Free memory was 342.6 MB in the beginning and 334.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.02 ms. Allocated memory is still 404.2 MB. Free memory was 334.7 MB in the beginning and 332.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 232.74 ms. Allocated memory was 404.2 MB in the beginning and 593.0 MB in the end (delta: 188.7 MB). Free memory was 332.0 MB in the beginning and 558.3 MB in the end (delta: -226.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 152.39 ms. Allocated memory is still 593.0 MB. Free memory was 558.3 MB in the beginning and 539.2 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 5.3 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={6:-1}, s2={0:0}] [L4] char *dst = s1; [L5] const char *src = s2; [L6] char *us; [L7] int n2; VAL [\old(n)=1, dst={6:-1}, n=1, s1={6:-1}, s1={6:-1}, s2={0:0}, s2={0:0}, src={0:0}] [L8] COND TRUE n > 0 [L9] n-- [L9] n-- [L10] dst++ [L10] dst++ [L10] src++ [L10] src++ VAL [\old(n)=1, dst={6:0}, dst++={6:-1}, n=0, s1={6:-1}, s1={6:-1}, s2={0:0}, s2={0:0}, src={0:1}, src++={0:0}] [L10] FCALL src++ - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 33 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=33occurred 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, 11 NumberOfCodeBlocks, 11 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! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrncpy_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_16-57-51-405.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrncpy_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-10_16-57-51-405.csv Received shutdown request...