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_smtcomp.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 04:11:15,011 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 04:11:15,013 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 04:11:15,029 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 04:11:15,029 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 04:11:15,031 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 04:11:15,032 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 04:11:15,033 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 04:11:15,036 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 04:11:15,037 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 04:11:15,038 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 04:11:15,038 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 04:11:15,039 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 04:11:15,040 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 04:11:15,041 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 04:11:15,043 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 04:11:15,046 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 04:11:15,048 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 04:11:15,049 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 04:11:15,050 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 04:11:15,052 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 04:11:15,053 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 04:11:15,053 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 04:11:15,054 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 04:11:15,055 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 04:11:15,056 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 04:11:15,056 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 04:11:15,057 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 04:11:15,057 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 04:11:15,057 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 04:11:15,058 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 04:11:15,058 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_smtcomp.epf [2018-01-25 04:11:15,067 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 04:11:15,067 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 04:11:15,068 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 04:11:15,068 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 04:11:15,068 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 04:11:15,068 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 04:11:15,068 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 04:11:15,068 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 04:11:15,069 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 04:11:15,069 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 04:11:15,069 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 04:11:15,069 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 04:11:15,069 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 04:11:15,069 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 04:11:15,070 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 04:11:15,070 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 04:11:15,070 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 04:11:15,070 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 04:11:15,070 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 04:11:15,070 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 04:11:15,070 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 04:11:15,071 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 04:11:15,071 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 04:11:15,071 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 04:11:15,071 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 04:11:15,071 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 04:11:15,072 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 04:11:15,072 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 04:11:15,072 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 04:11:15,072 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-25 04:11:15,072 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 04:11:15,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 04:11:15,072 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 04:11:15,073 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 04:11:15,073 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 04:11:15,106 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 04:11:15,116 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 04:11:15,120 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 04:11:15,122 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 04:11:15,122 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 04:11:15,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-01-25 04:11:15,316 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 04:11:15,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 04:11:15,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 04:11:15,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 04:11:15,327 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 04:11:15,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:11:15" (1/1) ... [2018-01-25 04:11:15,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a446621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:15, skipping insertion in model container [2018-01-25 04:11:15,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:11:15" (1/1) ... [2018-01-25 04:11:15,344 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:11:15,380 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:11:15,496 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:11:15,513 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:11:15,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:15 WrapperNode [2018-01-25 04:11:15,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 04:11:15,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 04:11:15,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 04:11:15,522 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 04:11:15,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:15" (1/1) ... [2018-01-25 04:11:15,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:15" (1/1) ... [2018-01-25 04:11:15,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:15" (1/1) ... [2018-01-25 04:11:15,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:15" (1/1) ... [2018-01-25 04:11:15,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:15" (1/1) ... [2018-01-25 04:11:15,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:15" (1/1) ... [2018-01-25 04:11:15,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:15" (1/1) ... [2018-01-25 04:11:15,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 04:11:15,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 04:11:15,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 04:11:15,555 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 04:11:15,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:15" (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 [2018-01-25 04:11:15,610 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 04:11:15,610 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 04:11:15,610 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrnlen [2018-01-25 04:11:15,611 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 04:11:15,611 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 04:11:15,611 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 04:11:15,611 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 04:11:15,611 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 04:11:15,611 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 04:11:15,611 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 04:11:15,611 INFO L128 BoogieDeclarations]: Found specification of procedure cstrnlen [2018-01-25 04:11:15,611 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 04:11:15,611 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 04:11:15,612 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 04:11:15,781 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 04:11:15,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:11:15 BoogieIcfgContainer [2018-01-25 04:11:15,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 04:11:15,782 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-25 04:11:15,782 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-25 04:11:15,782 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-25 04:11:15,783 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:11:15" (1/1) ... [2018-01-25 04:11:15,836 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 04:11:23,549 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 04:11:23,568 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-25 04:11:23,571 INFO L268 AbstractInterpreter]: Visited 38 different actions 253 times. Merged at 26 different actions 130 times. Never widened. Found 26 fixpoints after 6 different actions. Largest state had 24 variables. [2018-01-25 04:11:23,573 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-25 04:11:23,574 INFO L168 Benchmark]: Toolchain (without parser) took 8257.13 ms. Allocated memory was 297.8 MB in the beginning and 891.8 MB in the end (delta: 594.0 MB). Free memory was 256.7 MB in the beginning and 339.3 MB in the end (delta: -82.6 MB). Peak memory consumption was 511.4 MB. Max. memory is 5.3 GB. [2018-01-25 04:11:23,574 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 297.8 MB. Free memory is still 262.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 04:11:23,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.59 ms. Allocated memory is still 297.8 MB. Free memory was 256.7 MB in the beginning and 246.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:11:23,575 INFO L168 Benchmark]: Boogie Preprocessor took 32.37 ms. Allocated memory is still 297.8 MB. Free memory was 246.7 MB in the beginning and 244.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:11:23,575 INFO L168 Benchmark]: RCFGBuilder took 227.12 ms. Allocated memory is still 297.8 MB. Free memory was 244.7 MB in the beginning and 229.7 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:11:23,575 INFO L168 Benchmark]: Abstract Interpretation took 7791.00 ms. Allocated memory was 297.8 MB in the beginning and 891.8 MB in the end (delta: 594.0 MB). Free memory was 229.7 MB in the beginning and 339.3 MB in the end (delta: -109.6 MB). Peak memory consumption was 484.4 MB. Max. memory is 5.3 GB. [2018-01-25 04:11:23,576 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 297.8 MB. Free memory is still 262.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 199.59 ms. Allocated memory is still 297.8 MB. Free memory was 256.7 MB in the beginning and 246.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.37 ms. Allocated memory is still 297.8 MB. Free memory was 246.7 MB in the beginning and 244.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 227.12 ms. Allocated memory is still 297.8 MB. Free memory was 244.7 MB in the beginning and 229.7 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 7791.00 ms. Allocated memory was 297.8 MB in the beginning and 891.8 MB in the end (delta: 594.0 MB). Free memory was 229.7 MB in the beginning and 339.3 MB in the end (delta: -109.6 MB). Peak memory consumption was 484.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 31 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 258 LocStat_NO_SUPPORTING_DISEQUALITIES : 26 LocStat_NO_DISJUNCTIONS : -62 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 44 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 62 TransStat_NO_SUPPORTING_DISEQUALITIES : 7 TransStat_NO_DISJUNCTIONS : 47 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 2.423671 RENAME_VARIABLES(MILLISECONDS) : 0.167706 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 1.133986 PROJECTAWAY(MILLISECONDS) : 0.078523 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.075171 DISJOIN(MILLISECONDS) : 0.420956 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.193542 ADD_EQUALITY(MILLISECONDS) : 0.031524 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.014748 #CONJOIN_DISJUNCTIVE : 412 #RENAME_VARIABLES : 959 #UNFREEZE : 0 #CONJOIN : 646 #PROJECTAWAY : 593 #ADD_WEAK_EQUALITY : 6 #DISJOIN : 107 #RENAME_VARIABLES_DISJUNCTIVE : 919 #ADD_EQUALITY : 63 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 6 - 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: [L549] int length1 = __VERIFIER_nondet_int(); [L550] int n = __VERIFIER_nondet_int(); [L551] COND TRUE length1 < 1 [L552] length1 = 1 [L554] COND TRUE n < 1 [L555] n = 1 [L557] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L557] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L558] 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: [L549] int length1 = __VERIFIER_nondet_int(); [L550] int n = __VERIFIER_nondet_int(); [L551] COND TRUE length1 < 1 [L552] length1 = 1 [L554] COND TRUE n < 1 [L555] n = 1 [L557] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L557] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L558] FCALL nondetString1[length1-1] = '\0' [L559] CALL cstrnlen(nondetString1,n) [L543] const char *cp; [L544] cp = str [L544] maxlen != 0 && *cp != '\0' [L544] FCALL \read(*cp) - UnprovableResult [Line: 548]: 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: [L549] int length1 = __VERIFIER_nondet_int(); [L550] int n = __VERIFIER_nondet_int(); [L551] COND TRUE length1 < 1 [L552] length1 = 1 [L554] COND TRUE n < 1 [L555] n = 1 [L557] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L557] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L558] FCALL nondetString1[length1-1] = '\0' [L559] CALL, EXPR cstrnlen(nondetString1,n) [L543] const char *cp; [L544] cp = str [L544] maxlen != 0 && *cp != '\0' [L544] COND FALSE !(maxlen != 0 && *cp != '\0') [L546] RET return (size_t)(cp - str); [L559] EXPR cstrnlen(nondetString1,n) [L559] return cstrnlen(nondetString1,n); - 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/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-25_04-11-23-582.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-25_04-11-23-582.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_04-11-23-582.csv Received shutdown request...