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/cstrcat_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 00:18:23,753 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 00:18:23,755 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 00:18:23,854 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 00:18:23,854 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 00:18:23,856 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 00:18:23,857 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 00:18:23,859 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 00:18:23,861 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 00:18:23,862 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 00:18:23,863 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 00:18:23,864 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 00:18:23,865 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 00:18:23,866 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 00:18:23,867 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 00:18:23,870 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 00:18:23,872 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 00:18:23,874 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 00:18:23,876 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 00:18:23,877 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 00:18:23,879 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 00:18:23,885 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 [2018-01-21 00:18:23,894 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 00:18:23,894 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 00:18:23,895 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 00:18:23,895 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 00:18:23,895 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 00:18:23,895 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-21 00:18:23,896 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 00:18:23,896 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 00:18:23,896 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 00:18:23,896 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 00:18:23,897 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 00:18:23,897 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 00:18:23,897 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 00:18:23,897 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 00:18:23,897 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 00:18:23,897 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 00:18:23,897 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 00:18:23,897 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 00:18:23,898 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 00:18:23,898 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 00:18:23,898 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 00:18:23,898 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 00:18:23,898 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 00:18:23,899 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 00:18:23,899 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 00:18:23,899 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 00:18:23,899 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 00:18:23,899 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 00:18:23,899 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 00:18:23,900 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 00:18:23,900 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 00:18:23,900 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 00:18:23,900 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-21 00:18:23,900 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 00:18:23,900 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 00:18:23,900 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 00:18:23,901 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 00:18:23,901 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 00:18:23,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 00:18:23,945 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 00:18:23,948 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 00:18:23,949 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 00:18:23,949 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 00:18:23,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcat_unsafe_false-valid-deref.i [2018-01-21 00:18:24,041 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 00:18:24,044 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 00:18:24,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 00:18:24,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 00:18:24,050 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 00:18:24,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:18:24" (1/1) ... [2018-01-21 00:18:24,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3415ce40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:18:24, skipping insertion in model container [2018-01-21 00:18:24,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:18:24" (1/1) ... [2018-01-21 00:18:24,067 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:18:24,080 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:18:24,192 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:18:24,207 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:18:24,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:18:24 WrapperNode [2018-01-21 00:18:24,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 00:18:24,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 00:18:24,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 00:18:24,213 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 00:18:24,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:18:24" (1/1) ... [2018-01-21 00:18:24,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:18:24" (1/1) ... [2018-01-21 00:18:24,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:18:24" (1/1) ... [2018-01-21 00:18:24,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:18:24" (1/1) ... [2018-01-21 00:18:24,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:18:24" (1/1) ... [2018-01-21 00:18:24,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:18:24" (1/1) ... [2018-01-21 00:18:24,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:18:24" (1/1) ... [2018-01-21 00:18:24,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 00:18:24,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 00:18:24,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 00:18:24,245 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 00:18:24,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:18:24" (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 [2018-01-21 00:18:24,291 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 00:18:24,291 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 00:18:24,291 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcat [2018-01-21 00:18:24,291 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 00:18:24,291 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 00:18:24,291 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 00:18:24,291 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 00:18:24,292 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 00:18:24,292 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcat [2018-01-21 00:18:24,292 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 00:18:24,292 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 00:18:24,292 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 00:18:24,430 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 00:18:24,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:18:24 BoogieIcfgContainer [2018-01-21 00:18:24,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 00:18:24,431 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-21 00:18:24,432 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-21 00:18:24,432 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-21 00:18:24,432 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:18:24" (1/1) ... [2018-01-21 00:18:24,478 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 00:18:24,958 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-21 00:18:24,970 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:18:24,974 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:18:24,974 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:18:24,974 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:18:24,974 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:18:24,986 INFO L268 AbstractInterpreter]: Visited 31 different actions 73 times. Merged at 15 different actions 30 times. Never widened. Found 6 fixpoints after 4 different actions. Largest state had 30 variables. [2018-01-21 00:18:24,989 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-21 00:18:24,990 INFO L168 Benchmark]: Toolchain (without parser) took 948.30 ms. Allocated memory was 306.7 MB in the beginning and 328.2 MB in the end (delta: 21.5 MB). Free memory was 267.6 MB in the beginning and 276.1 MB in the end (delta: -8.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:18:24,991 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 306.7 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 00:18:24,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.95 ms. Allocated memory is still 306.7 MB. Free memory was 267.6 MB in the beginning and 259.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:18:24,992 INFO L168 Benchmark]: Boogie Preprocessor took 31.25 ms. Allocated memory is still 306.7 MB. Free memory was 259.7 MB in the beginning and 257.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:18:24,992 INFO L168 Benchmark]: RCFGBuilder took 186.68 ms. Allocated memory is still 306.7 MB. Free memory was 257.7 MB in the beginning and 242.7 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:18:24,993 INFO L168 Benchmark]: Abstract Interpretation took 557.43 ms. Allocated memory was 306.7 MB in the beginning and 328.2 MB in the end (delta: 21.5 MB). Free memory was 242.7 MB in the beginning and 276.1 MB in the end (delta: -33.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 00:18:24,995 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 306.7 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 167.95 ms. Allocated memory is still 306.7 MB. Free memory was 267.6 MB in the beginning and 259.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.25 ms. Allocated memory is still 306.7 MB. Free memory was 259.7 MB in the beginning and 257.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 186.68 ms. Allocated memory is still 306.7 MB. Free memory was 257.7 MB in the beginning and 242.7 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 557.43 ms. Allocated memory was 306.7 MB in the beginning and 328.2 MB in the end (delta: 21.5 MB). Free memory was 242.7 MB in the beginning and 276.1 MB in the end (delta: -33.4 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 25 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 156 LocStat_NO_SUPPORTING_DISEQUALITIES : 2 LocStat_NO_DISJUNCTIONS : -50 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 37 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 46 TransStat_NO_SUPPORTING_DISEQUALITIES : 4 TransStat_NO_DISJUNCTIONS : 33 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.549881 RENAME_VARIABLES(MILLISECONDS) : 0.043895 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.164411 PROJECTAWAY(MILLISECONDS) : 0.859831 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001621 DISJOIN(MILLISECONDS) : 0.397972 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.069968 ADD_EQUALITY(MILLISECONDS) : 0.032384 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.018659 #CONJOIN_DISJUNCTIVE : 112 #RENAME_VARIABLES : 219 #UNFREEZE : 0 #CONJOIN : 152 #PROJECTAWAY : 155 #ADD_WEAK_EQUALITY : 3 #DISJOIN : 6 #RENAME_VARIABLES_DISJUNCTIVE : 237 #ADD_EQUALITY : 47 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 4 - 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: [L11] char *s1; [L12] char *s2; [L13] CALL cstrcat(s1, s2) [L3] char *s = s1; [L4] EXPR, FCALL \read(*s) [L4] COND FALSE !(*s != '\0') [L6] EXPR s++ [L6] EXPR s2++ [L6] EXPR, FCALL *s++ = *s2++ [L6] COND FALSE !((*s++ = *s2++) != '\0') [L8] RET return s1; [L13] cstrcat(s1, s2) [L14] return 0; - PositiveResult [Line: 10]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: 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/cstrcat_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-21_00-18-25-007.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcat_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-21_00-18-25-007.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcat_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-21_00-18-25-007.csv Received shutdown request...