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 --cacsl2boogietranslator.bitprecise.bitfields false -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 0.1.23-408c70d-m [2018-04-13 13:58:24,359 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-13 13:58:24,360 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-13 13:58:24,372 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-13 13:58:24,372 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-13 13:58:24,372 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-13 13:58:24,373 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-13 13:58:24,375 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-13 13:58:24,376 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-13 13:58:24,377 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-13 13:58:24,377 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-13 13:58:24,377 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-13 13:58:24,378 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-13 13:58:24,379 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-13 13:58:24,380 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-13 13:58:24,381 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-13 13:58:24,383 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-13 13:58:24,384 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-13 13:58:24,385 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-13 13:58:24,386 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-13 13:58:24,387 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-13 13:58:24,388 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-13 13:58:24,388 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-13 13:58:24,389 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-13 13:58:24,389 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-13 13:58:24,390 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-13 13:58:24,390 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-13 13:58:24,391 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-13 13:58:24,392 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-13 13:58:24,392 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-13 13:58:24,392 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-13 13:58:24,392 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 [2018-04-13 13:58:24,401 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-13 13:58:24,401 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-13 13:58:24,402 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-13 13:58:24,402 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-13 13:58:24,402 INFO L133 SettingsManager]: * Use SBE=true [2018-04-13 13:58:24,402 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-13 13:58:24,402 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-13 13:58:24,402 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-13 13:58:24,403 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-13 13:58:24,403 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-13 13:58:24,403 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-13 13:58:24,403 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-13 13:58:24,403 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-13 13:58:24,403 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-13 13:58:24,403 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-13 13:58:24,403 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-13 13:58:24,403 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-13 13:58:24,403 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-13 13:58:24,403 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-13 13:58:24,404 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-13 13:58:24,404 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-13 13:58:24,404 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-04-13 13:58:24,404 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-04-13 13:58:24,404 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: Bitprecise bitfields -> false [2018-04-13 13:58:24,430 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-13 13:58:24,439 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-13 13:58:24,441 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-13 13:58:24,442 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-13 13:58:24,442 INFO L276 PluginConnector]: CDTParser initialized [2018-04-13 13:58:24,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrncpy_unsafe_false-valid-deref.i [2018-04-13 13:58:24,805 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG31740500a [2018-04-13 13:58:24,880 INFO L287 CDTParser]: IsIndexed: true [2018-04-13 13:58:24,880 INFO L288 CDTParser]: Found 1 translation units. [2018-04-13 13:58:24,881 INFO L168 CDTParser]: Scanning cstrncpy_unsafe_false-valid-deref.i [2018-04-13 13:58:24,882 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-13 13:58:24,882 INFO L215 ultiparseSymbolTable]: [2018-04-13 13:58:24,882 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-13 13:58:24,882 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrncpy_unsafe_false_valid_deref_i__ ('') in cstrncpy_unsafe_false-valid-deref.i [2018-04-13 13:58:24,882 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrncpy_unsafe_false-valid-deref.i [2018-04-13 13:58:24,882 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-13 13:58:24,883 INFO L233 ultiparseSymbolTable]: [2018-04-13 13:58:24,895 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG31740500a [2018-04-13 13:58:24,898 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-13 13:58:24,899 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-13 13:58:24,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-13 13:58:24,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-13 13:58:24,904 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-13 13:58:24,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 01:58:24" (1/1) ... [2018-04-13 13:58:24,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d7bafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 01:58:24, skipping insertion in model container [2018-04-13 13:58:24,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 01:58:24" (1/1) ... [2018-04-13 13:58:24,918 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 13:58:24,927 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 13:58:25,022 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 13:58:25,039 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 13:58:25,042 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-13 13:58:25,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 01:58:25 WrapperNode [2018-04-13 13:58:25,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-13 13:58:25,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-13 13:58:25,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-13 13:58:25,049 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-13 13:58:25,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 01:58:25" (1/1) ... [2018-04-13 13:58:25,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 01:58:25" (1/1) ... [2018-04-13 13:58:25,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 01:58:25" (1/1) ... [2018-04-13 13:58:25,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 01:58:25" (1/1) ... [2018-04-13 13:58:25,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 01:58:25" (1/1) ... [2018-04-13 13:58:25,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 01:58:25" (1/1) ... [2018-04-13 13:58:25,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 01:58:25" (1/1) ... [2018-04-13 13:58:25,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-13 13:58:25,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-13 13:58:25,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-13 13:58:25,070 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-13 13:58:25,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 01:58:25" (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 [2018-04-13 13:58:25,105 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-13 13:58:25,105 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-13 13:58:25,105 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrncpy [2018-04-13 13:58:25,105 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-13 13:58:25,105 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-13 13:58:25,105 INFO L128 BoogieDeclarations]: Found specification of procedure cstrncpy [2018-04-13 13:58:25,105 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-13 13:58:25,105 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-13 13:58:25,105 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-13 13:58:25,105 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-13 13:58:25,105 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-13 13:58:25,106 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-13 13:58:25,106 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-13 13:58:25,267 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-13 13:58:25,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 01:58:25 BoogieIcfgContainer [2018-04-13 13:58:25,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-13 13:58:25,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-13 13:58:25,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-13 13:58:25,270 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-13 13:58:25,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 01:58:24" (1/3) ... [2018-04-13 13:58:25,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392c5a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 01:58:25, skipping insertion in model container [2018-04-13 13:58:25,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 01:58:25" (2/3) ... [2018-04-13 13:58:25,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392c5a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 01:58:25, skipping insertion in model container [2018-04-13 13:58:25,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 01:58:25" (3/3) ... [2018-04-13 13:58:25,272 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrncpy_unsafe_false-valid-deref.i [2018-04-13 13:58:25,279 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-13 13:58:25,282 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-04-13 13:58:25,304 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-13 13:58:25,305 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-13 13:58:25,305 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-13 13:58:25,305 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-04-13 13:58:25,305 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-13 13:58:25,305 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-13 13:58:25,306 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-13 13:58:25,306 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-13 13:58:25,306 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-13 13:58:25,306 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-13 13:58:25,317 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-04-13 13:58:25,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-13 13:58:25,323 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 13:58:25,325 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 13:58:25,325 INFO L408 AbstractCegarLoop]: === Iteration 1 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-13 13:58:25,327 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 [2018-04-13 13:58:25,335 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 13:58:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-13 13:58:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-13 13:58:25,405 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-13 13:58:25,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 01:58:25 BoogieIcfgContainer [2018-04-13 13:58:25,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-13 13:58:25,422 INFO L168 Benchmark]: Toolchain (without parser) took 523.34 ms. Allocated memory was 403.2 MB in the beginning and 608.2 MB in the end (delta: 205.0 MB). Free memory was 345.4 MB in the beginning and 554.7 MB in the end (delta: -209.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-13 13:58:25,423 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 403.2 MB. Free memory is still 364.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-13 13:58:25,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.73 ms. Allocated memory is still 403.2 MB. Free memory was 345.4 MB in the beginning and 335.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 5.3 GB. [2018-04-13 13:58:25,424 INFO L168 Benchmark]: Boogie Preprocessor took 21.11 ms. Allocated memory is still 403.2 MB. Free memory was 335.9 MB in the beginning and 334.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-13 13:58:25,424 INFO L168 Benchmark]: RCFGBuilder took 197.80 ms. Allocated memory was 403.2 MB in the beginning and 608.2 MB in the end (delta: 205.0 MB). Free memory was 334.6 MB in the beginning and 573.8 MB in the end (delta: -239.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 5.3 GB. [2018-04-13 13:58:25,425 INFO L168 Benchmark]: TraceAbstraction took 153.08 ms. Allocated memory is still 608.2 MB. Free memory was 572.1 MB in the beginning and 554.7 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 5.3 GB. [2018-04-13 13:58:25,427 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 403.2 MB. Free memory is still 364.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 148.73 ms. Allocated memory is still 403.2 MB. Free memory was 345.4 MB in the beginning and 335.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 21.11 ms. Allocated memory is still 403.2 MB. Free memory was 335.9 MB in the beginning and 334.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 197.80 ms. Allocated memory was 403.2 MB in the beginning and 608.2 MB in the end (delta: 205.0 MB). Free memory was 334.6 MB in the beginning and 573.8 MB in the end (delta: -239.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 153.08 ms. Allocated memory is still 608.2 MB. Free memory was 572.1 MB in the beginning and 554.7 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 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-0-2018-04-13_13-58-25-433.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-0-2018-04-13_13-58-25-433.csv Received shutdown request...