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/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrncat_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-47db877 [2018-01-23 16:08:14,444 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-23 16:08:14,445 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-23 16:08:14,460 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-23 16:08:14,461 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-23 16:08:14,462 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-23 16:08:14,463 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-23 16:08:14,464 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-23 16:08:14,467 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-23 16:08:14,468 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-23 16:08:14,469 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-23 16:08:14,469 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-23 16:08:14,470 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-23 16:08:14,471 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-23 16:08:14,472 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-23 16:08:14,475 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-23 16:08:14,477 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-23 16:08:14,479 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-23 16:08:14,480 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-23 16:08:14,481 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-23 16:08:14,484 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-23 16:08:14,489 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-23 16:08:14,490 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-23 16:08:14,490 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf [2018-01-23 16:08:14,498 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-23 16:08:14,498 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-23 16:08:14,499 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-23 16:08:14,499 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-23 16:08:14,499 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-23 16:08:14,500 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-23 16:08:14,500 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-23 16:08:14,500 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-23 16:08:14,500 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-23 16:08:14,500 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-23 16:08:14,501 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-23 16:08:14,501 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-23 16:08:14,501 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-23 16:08:14,501 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-23 16:08:14,501 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-23 16:08:14,501 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-23 16:08:14,501 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-23 16:08:14,502 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-23 16:08:14,502 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-23 16:08:14,502 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-23 16:08:14,502 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-23 16:08:14,502 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-23 16:08:14,502 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-23 16:08:14,503 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-23 16:08:14,503 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-23 16:08:14,503 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-23 16:08:14,503 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-23 16:08:14,503 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-23 16:08:14,503 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-23 16:08:14,504 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-23 16:08:14,504 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-23 16:08:14,504 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-23 16:08:14,504 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-23 16:08:14,504 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-23 16:08:14,504 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-23 16:08:14,504 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-23 16:08:14,505 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-23 16:08:14,505 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-23 16:08:14,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-23 16:08:14,550 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-23 16:08:14,554 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-23 16:08:14,555 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-23 16:08:14,556 INFO L276 PluginConnector]: CDTParser initialized [2018-01-23 16:08:14,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrncat_unsafe_false-valid-deref.i [2018-01-23 16:08:14,721 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-23 16:08:14,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-23 16:08:14,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-23 16:08:14,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-23 16:08:14,732 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-23 16:08:14,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 04:08:14" (1/1) ... [2018-01-23 16:08:14,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11888612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:14, skipping insertion in model container [2018-01-23 16:08:14,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 04:08:14" (1/1) ... [2018-01-23 16:08:14,749 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 16:08:14,764 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 16:08:14,868 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 16:08:14,883 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 16:08:14,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:14 WrapperNode [2018-01-23 16:08:14,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-23 16:08:14,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-23 16:08:14,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-23 16:08:14,889 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-23 16:08:14,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:14" (1/1) ... [2018-01-23 16:08:14,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:14" (1/1) ... [2018-01-23 16:08:14,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:14" (1/1) ... [2018-01-23 16:08:14,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:14" (1/1) ... [2018-01-23 16:08:14,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:14" (1/1) ... [2018-01-23 16:08:14,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:14" (1/1) ... [2018-01-23 16:08:14,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:14" (1/1) ... [2018-01-23 16:08:14,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-23 16:08:14,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-23 16:08:14,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-23 16:08:14,920 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-23 16:08:14,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:14" (1/1) ... No working directory specified, using /storage/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 [2018-01-23 16:08:14,967 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-23 16:08:14,967 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-23 16:08:14,967 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrncat [2018-01-23 16:08:14,967 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-23 16:08:14,967 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-23 16:08:14,967 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-23 16:08:14,968 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-23 16:08:14,968 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-23 16:08:14,968 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-23 16:08:14,968 INFO L128 BoogieDeclarations]: Found specification of procedure cstrncat [2018-01-23 16:08:14,968 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-23 16:08:14,968 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-23 16:08:14,968 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-23 16:08:15,130 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-23 16:08:15,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 04:08:15 BoogieIcfgContainer [2018-01-23 16:08:15,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-23 16:08:15,132 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-23 16:08:15,132 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-23 16:08:15,132 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-23 16:08:15,133 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 04:08:15" (1/1) ... [2018-01-23 16:08:15,178 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-23 16:08:15,743 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-23 16:08:15,751 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:15,753 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:15,754 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:15,754 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:15,754 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:15,763 INFO L268 AbstractInterpreter]: Visited 38 different actions 120 times. Merged at 21 different actions 57 times. Widened at 1 different actions 1 times. Found 13 fixpoints after 7 different actions. Largest state had 35 variables. [2018-01-23 16:08:15,766 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-23 16:08:15,767 INFO L168 Benchmark]: Toolchain (without parser) took 1045.39 ms. Allocated memory was 307.2 MB in the beginning and 328.7 MB in the end (delta: 21.5 MB). Free memory was 268.1 MB in the beginning and 228.2 MB in the end (delta: 39.9 MB). Peak memory consumption was 61.4 MB. Max. memory is 5.3 GB. [2018-01-23 16:08:15,768 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 307.2 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 16:08:15,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.37 ms. Allocated memory is still 307.2 MB. Free memory was 268.1 MB in the beginning and 258.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-23 16:08:15,768 INFO L168 Benchmark]: Boogie Preprocessor took 30.79 ms. Allocated memory is still 307.2 MB. Free memory is still 258.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 16:08:15,768 INFO L168 Benchmark]: RCFGBuilder took 211.06 ms. Allocated memory is still 307.2 MB. Free memory was 258.1 MB in the beginning and 241.1 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 5.3 GB. [2018-01-23 16:08:15,769 INFO L168 Benchmark]: Abstract Interpretation took 634.47 ms. Allocated memory was 307.2 MB in the beginning and 328.7 MB in the end (delta: 21.5 MB). Free memory was 241.1 MB in the beginning and 228.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 34.4 MB. Max. memory is 5.3 GB. [2018-01-23 16:08:15,771 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 307.2 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 163.37 ms. Allocated memory is still 307.2 MB. Free memory was 268.1 MB in the beginning and 258.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.79 ms. Allocated memory is still 307.2 MB. Free memory is still 258.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 211.06 ms. Allocated memory is still 307.2 MB. Free memory was 258.1 MB in the beginning and 241.1 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 634.47 ms. Allocated memory was 307.2 MB in the beginning and 328.7 MB in the end (delta: 21.5 MB). Free memory was 241.1 MB in the beginning and 228.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 34.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 30 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 195 LocStat_NO_SUPPORTING_DISEQUALITIES : 3 LocStat_NO_DISJUNCTIONS : -60 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 44 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 60 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 42 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.322846 RENAME_VARIABLES(MILLISECONDS) : 0.032233 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.063420 PROJECTAWAY(MILLISECONDS) : 0.454041 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.000903 DISJOIN(MILLISECONDS) : 0.550252 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.059333 ADD_EQUALITY(MILLISECONDS) : 0.036019 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.015923 #CONJOIN_DISJUNCTIVE : 184 #RENAME_VARIABLES : 366 #UNFREEZE : 0 #CONJOIN : 246 #PROJECTAWAY : 238 #ADD_WEAK_EQUALITY : 5 #DISJOIN : 19 #RENAME_VARIABLES_DISJUNCTIVE : 376 #ADD_EQUALITY : 62 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 6 - UnprovableResult [Line: 1]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: abstract domain could reach this error location. Possible FailurePath: - UnprovableResult [Line: 1]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: abstract domain could reach this error location. Possible FailurePath: [L16] char *s1; [L17] char *s2; [L18] int n = __VERIFIER_nondet_int(); [L19] CALL cstrncat(s1, s2, n) [L4] char *s = s1; [L5] EXPR, FCALL \read(*s) [L5] COND FALSE !(*s != '\0') [L7] n != 0 && (*s = *s2++) != '\0' [L7] COND FALSE !(n != 0 && (*s = *s2++) != '\0') [L11] EXPR, FCALL \read(*s) [L11] COND FALSE !(*s != '\0') [L13] RET return s1; [L19] cstrncat(s1, s2, n) [L20] return 0; - PositiveResult [Line: 15]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 2]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrncat_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-23_16-08-15-782.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrncat_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-23_16-08-15-782.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrncat_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-23_16-08-15-782.csv Received shutdown request...