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_Camel.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrncpy_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 11:59:21,009 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 11:59:21,010 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 11:59:21,022 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 11:59:21,023 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 11:59:21,023 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 11:59:21,024 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 11:59:21,026 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 11:59:21,027 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 11:59:21,028 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 11:59:21,029 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 11:59:21,029 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 11:59:21,030 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 11:59:21,031 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 11:59:21,031 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 11:59:21,033 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 11:59:21,035 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 11:59:21,036 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 11:59:21,037 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 11:59:21,038 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 11:59:21,040 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 11:59:21,040 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 11:59:21,040 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 11:59:21,041 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 11:59:21,042 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 11:59:21,043 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 11:59:21,043 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 11:59:21,044 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 11:59:21,044 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 11:59:21,044 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 11:59:21,044 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 11:59:21,044 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-02-04 11:59:21,054 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 11:59:21,054 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 11:59:21,055 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 11:59:21,056 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 11:59:21,056 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 11:59:21,056 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 11:59:21,056 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 11:59:21,056 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 11:59:21,056 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 11:59:21,056 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 11:59:21,056 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 11:59:21,057 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 11:59:21,057 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 11:59:21,057 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 11:59:21,057 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 11:59:21,057 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 11:59:21,057 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 11:59:21,057 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 11:59:21,057 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 11:59:21,057 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 11:59:21,058 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 11:59:21,058 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 11:59:21,058 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 11:59:21,058 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-04 11:59:21,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 11:59:21,093 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 11:59:21,096 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 11:59:21,098 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 11:59:21,098 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 11:59:21,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrncpy_unsafe_false-valid-deref.i [2018-02-04 11:59:21,191 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 11:59:21,192 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 11:59:21,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 11:59:21,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 11:59:21,200 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 11:59:21,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 11:59:21" (1/1) ... [2018-02-04 11:59:21,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc96b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 11:59:21, skipping insertion in model container [2018-02-04 11:59:21,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 11:59:21" (1/1) ... [2018-02-04 11:59:21,218 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 11:59:21,228 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 11:59:21,306 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 11:59:21,317 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 11:59:21,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 11:59:21 WrapperNode [2018-02-04 11:59:21,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 11:59:21,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 11:59:21,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 11:59:21,321 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 11:59:21,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 11:59:21" (1/1) ... [2018-02-04 11:59:21,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 11:59:21" (1/1) ... [2018-02-04 11:59:21,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 11:59:21" (1/1) ... [2018-02-04 11:59:21,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 11:59:21" (1/1) ... [2018-02-04 11:59:21,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 11:59:21" (1/1) ... [2018-02-04 11:59:21,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 11:59:21" (1/1) ... [2018-02-04 11:59:21,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 11:59:21" (1/1) ... [2018-02-04 11:59:21,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 11:59:21,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 11:59:21,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 11:59:21,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 11:59:21,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 11:59:21" (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 [2018-02-04 11:59:21,388 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 11:59:21,388 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 11:59:21,388 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrncpy [2018-02-04 11:59:21,388 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 11:59:21,388 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 11:59:21,389 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 11:59:21,389 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 11:59:21,389 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 11:59:21,389 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 11:59:21,389 INFO L128 BoogieDeclarations]: Found specification of procedure cstrncpy [2018-02-04 11:59:21,389 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 11:59:21,389 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 11:59:21,389 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 11:59:21,512 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 11:59:21,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 11:59:21 BoogieIcfgContainer [2018-02-04 11:59:21,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 11:59:21,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 11:59:21,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 11:59:21,516 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 11:59:21,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 11:59:21" (1/3) ... [2018-02-04 11:59:21,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df2caf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 11:59:21, skipping insertion in model container [2018-02-04 11:59:21,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 11:59:21" (2/3) ... [2018-02-04 11:59:21,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df2caf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 11:59:21, skipping insertion in model container [2018-02-04 11:59:21,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 11:59:21" (3/3) ... [2018-02-04 11:59:21,519 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrncpy_unsafe_false-valid-deref.i [2018-02-04 11:59:21,525 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 11:59:21,530 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-02-04 11:59:21,560 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 11:59:21,560 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 11:59:21,560 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 11:59:21,560 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 11:59:21,561 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 11:59:21,561 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 11:59:21,561 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 11:59:21,561 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 11:59:21,562 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 11:59:21,572 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-02-04 11:59:21,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-04 11:59:21,579 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 11:59:21,579 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 11:59:21,579 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 11:59:21,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1931455943, now seen corresponding path program 1 times [2018-02-04 11:59:21,584 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 11:59:21,585 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 11:59:21,620 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 11:59:21,620 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 11:59:21,620 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 11:59:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 11:59:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 11:59:21,685 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 11:59:21,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 11:59:21 BoogieIcfgContainer [2018-02-04 11:59:21,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 11:59:21,705 INFO L168 Benchmark]: Toolchain (without parser) took 513.48 ms. Allocated memory is still 402.1 MB. Free memory was 360.1 MB in the beginning and 320.2 MB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 5.3 GB. [2018-02-04 11:59:21,707 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 402.1 MB. Free memory is still 365.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 11:59:21,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 127.09 ms. Allocated memory is still 402.1 MB. Free memory was 360.1 MB in the beginning and 351.9 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 5.3 GB. [2018-02-04 11:59:21,707 INFO L168 Benchmark]: Boogie Preprocessor took 26.12 ms. Allocated memory is still 402.1 MB. Free memory was 351.9 MB in the beginning and 350.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 11:59:21,708 INFO L168 Benchmark]: RCFGBuilder took 165.70 ms. Allocated memory is still 402.1 MB. Free memory was 350.6 MB in the beginning and 333.4 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. [2018-02-04 11:59:21,709 INFO L168 Benchmark]: TraceAbstraction took 191.38 ms. Allocated memory is still 402.1 MB. Free memory was 333.4 MB in the beginning and 320.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-04 11:59:21,711 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 402.1 MB. Free memory is still 365.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 127.09 ms. Allocated memory is still 402.1 MB. Free memory was 360.1 MB in the beginning and 351.9 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.12 ms. Allocated memory is still 402.1 MB. Free memory was 351.9 MB in the beginning and 350.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 165.70 ms. Allocated memory is still 402.1 MB. Free memory was 350.6 MB in the beginning and 333.4 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 191.38 ms. Allocated memory is still 402.1 MB. Free memory was 333.4 MB in the beginning and 320.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: 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={4:-2}, s2={3:-1}] [L4] char *dst = s1; [L5] const char *src = s2; [L6] char *us; [L7] int n2; VAL [\old(n)=1, dst={4:-2}, n=1, s1={4:-2}, s1={4:-2}, s2={3:-1}, s2={3:-1}, src={3:-1}] [L8] COND TRUE n > 0 [L9] n-- [L10] dst++ [L10] src++ VAL [\old(n)=1, dst={4:-1}, dst++={4:-2}, n=0, s1={4:-2}, s1={4:-2}, s2={3:-1}, s2={3:-1}, src={3:0}, src++={3:-1}] - 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_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_11-59-21-719.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_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_11-59-21-719.csv Received shutdown request...