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/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_mostprecise.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrlen-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 17:57:31,098 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 17:57:31,099 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 17:57:31,111 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 17:57:31,111 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 17:57:31,112 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 17:57:31,113 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 17:57:31,114 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 17:57:31,115 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 17:57:31,116 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 17:57:31,116 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 17:57:31,116 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 17:57:31,117 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 17:57:31,118 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 17:57:31,119 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 17:57:31,122 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 17:57:31,124 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 17:57:31,126 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 17:57:31,127 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 17:57:31,129 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 17:57:31,131 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 17:57:31,137 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_mostprecise.epf [2018-01-24 17:57:31,147 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 17:57:31,147 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 17:57:31,148 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 17:57:31,149 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 17:57:31,149 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 17:57:31,149 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 17:57:31,149 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 17:57:31,149 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-24 17:57:31,149 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 17:57:31,150 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 17:57:31,150 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 17:57:31,151 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 17:57:31,151 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 17:57:31,151 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 17:57:31,151 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 17:57:31,151 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 17:57:31,151 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 17:57:31,152 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 17:57:31,152 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 17:57:31,152 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 17:57:31,152 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 17:57:31,153 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 17:57:31,153 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 17:57:31,153 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 17:57:31,153 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 17:57:31,153 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 17:57:31,154 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 17:57:31,154 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 17:57:31,154 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 17:57:31,154 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 17:57:31,154 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 17:57:31,155 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 17:57:31,155 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 17:57:31,155 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 17:57:31,156 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 17:57:31,156 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 17:57:31,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 17:57:31,204 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 17:57:31,208 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 17:57:31,209 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 17:57:31,210 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 17:57:31,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-01-24 17:57:31,379 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 17:57:31,385 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 17:57:31,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 17:57:31,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 17:57:31,391 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 17:57:31,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:57:31" (1/1) ... [2018-01-24 17:57:31,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3565d9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:57:31, skipping insertion in model container [2018-01-24 17:57:31,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:57:31" (1/1) ... [2018-01-24 17:57:31,413 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:57:31,453 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:57:31,565 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:57:31,578 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:57:31,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:57:31 WrapperNode [2018-01-24 17:57:31,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 17:57:31,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 17:57:31,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 17:57:31,586 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 17:57:31,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:57:31" (1/1) ... [2018-01-24 17:57:31,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:57:31" (1/1) ... [2018-01-24 17:57:31,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:57:31" (1/1) ... [2018-01-24 17:57:31,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:57:31" (1/1) ... [2018-01-24 17:57:31,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:57:31" (1/1) ... [2018-01-24 17:57:31,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:57:31" (1/1) ... [2018-01-24 17:57:31,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:57:31" (1/1) ... [2018-01-24 17:57:31,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 17:57:31,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 17:57:31,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 17:57:31,621 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 17:57:31,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:57:31" (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 [2018-01-24 17:57:31,668 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 17:57:31,669 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 17:57:31,669 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrlen [2018-01-24 17:57:31,669 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 17:57:31,669 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 17:57:31,669 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 17:57:31,670 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 17:57:31,670 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 17:57:31,670 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 17:57:31,670 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 17:57:31,670 INFO L128 BoogieDeclarations]: Found specification of procedure cstrlen [2018-01-24 17:57:31,670 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 17:57:31,670 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 17:57:31,670 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 17:57:31,809 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 17:57:31,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:57:31 BoogieIcfgContainer [2018-01-24 17:57:31,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 17:57:31,810 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 17:57:31,811 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 17:57:31,811 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 17:57:31,812 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:57:31" (1/1) ... [2018-01-24 17:57:31,858 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 17:58:09,023 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 17:58:09,042 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 17:58:09,056 INFO L268 AbstractInterpreter]: Visited 32 different actions 88 times. Merged at 20 different actions 39 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 20 variables. [2018-01-24 17:58:09,058 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 17:58:09,059 INFO L168 Benchmark]: Toolchain (without parser) took 37679.46 ms. Allocated memory was 304.6 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 262.5 MB in the beginning and 863.8 MB in the end (delta: -601.3 MB). Peak memory consumption was 866.2 MB. Max. memory is 5.3 GB. [2018-01-24 17:58:09,059 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 304.6 MB. Free memory is still 270.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 17:58:09,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.48 ms. Allocated memory is still 304.6 MB. Free memory was 261.5 MB in the beginning and 251.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-24 17:58:09,060 INFO L168 Benchmark]: Boogie Preprocessor took 34.71 ms. Allocated memory is still 304.6 MB. Free memory was 251.5 MB in the beginning and 250.5 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-24 17:58:09,060 INFO L168 Benchmark]: RCFGBuilder took 189.69 ms. Allocated memory is still 304.6 MB. Free memory was 250.5 MB in the beginning and 235.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 5.3 GB. [2018-01-24 17:58:09,060 INFO L168 Benchmark]: Abstract Interpretation took 37247.58 ms. Allocated memory was 304.6 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 235.4 MB in the beginning and 863.8 MB in the end (delta: -628.4 MB). Peak memory consumption was 839.0 MB. Max. memory is 5.3 GB. [2018-01-24 17:58:09,061 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 304.6 MB. Free memory is still 270.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 199.48 ms. Allocated memory is still 304.6 MB. Free memory was 261.5 MB in the beginning and 251.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.71 ms. Allocated memory is still 304.6 MB. Free memory was 251.5 MB in the beginning and 250.5 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 189.69 ms. Allocated memory is still 304.6 MB. Free memory was 250.5 MB in the beginning and 235.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 37247.58 ms. Allocated memory was 304.6 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 235.4 MB in the beginning and 863.8 MB in the end (delta: -628.4 MB). Peak memory consumption was 839.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 27 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 230 LocStat_NO_SUPPORTING_DISEQUALITIES : 23 LocStat_NO_DISJUNCTIONS : -54 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 38 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 47 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 39 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.583169 RENAME_VARIABLES(MILLISECONDS) : 0.012975 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.436529 PROJECTAWAY(MILLISECONDS) : 0.443886 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.138026 DISJOIN(MILLISECONDS) : 0.140965 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.025719 ADD_EQUALITY(MILLISECONDS) : 0.016188 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.006798 #CONJOIN_DISJUNCTIVE : 151 #RENAME_VARIABLES : 340 #UNFREEZE : 0 #CONJOIN : 254 #PROJECTAWAY : 241 #ADD_WEAK_EQUALITY : 6 #DISJOIN : 42 #RENAME_VARIABLES_DISJUNCTIVE : 337 #ADD_EQUALITY : 48 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 5 - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L548] int length1 = __VERIFIER_nondet_int(); [L549] COND TRUE length1 < 1 [L550] length1 = 1 [L552] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L552] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L553] FCALL nondetString1[length1-1] = '\0' - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L548] int length1 = __VERIFIER_nondet_int(); [L549] COND TRUE length1 < 1 [L550] length1 = 1 [L552] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L552] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L553] FCALL nondetString1[length1-1] = '\0' [L554] CALL cstrlen(nondetString1) [L542] const char *p = s; [L543] FCALL \read(*p) - UnprovableResult [Line: 547]: 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: [L548] int length1 = __VERIFIER_nondet_int(); [L549] COND TRUE length1 < 1 [L550] length1 = 1 [L552] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L552] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L553] FCALL nondetString1[length1-1] = '\0' [L554] CALL, EXPR cstrlen(nondetString1) [L542] const char *p = s; [L543] EXPR, FCALL \read(*p) [L543] COND FALSE !(*p != '\0') [L545] RET return (int)(p - s); [L554] EXPR cstrlen(nondetString1) [L554] return cstrlen(nondetString1); - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds 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) 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/cstrlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_mostprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_17-58-09-069.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_mostprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_17-58-09-069.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_mostprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_17-58-09-069.csv Received shutdown request...