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_imprecise.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:22:09,804 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:22:09,805 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:22:09,821 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:22:09,821 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:22:09,822 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:22:09,823 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:22:09,825 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:22:09,827 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:22:09,828 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:22:09,829 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:22:09,829 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:22:09,830 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:22:09,831 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:22:09,832 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:22:09,835 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:22:09,837 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:22:09,839 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:22:09,841 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:22:09,842 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:22:09,844 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:22:09,849 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:22:09,850 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:22:09,851 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_imprecise.epf [2018-01-24 16:22:09,859 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:22:09,859 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:22:09,860 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:22:09,860 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:22:09,860 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:22:09,860 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:22:09,860 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:22:09,860 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:22:09,861 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:22:09,861 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:22:09,861 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:22:09,861 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:22:09,861 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:22:09,862 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:22:09,862 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:22:09,862 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:22:09,862 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:22:09,862 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:22:09,862 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:22:09,862 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:22:09,863 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:22:09,863 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:22:09,863 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:22:09,863 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:22:09,863 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:22:09,864 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:22:09,864 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:22:09,864 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:22:09,864 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:22:09,864 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:22:09,864 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:22:09,865 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:22:09,865 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:22:09,865 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:22:09,865 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:22:09,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:22:09,913 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:22:09,917 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:22:09,918 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:22:09,918 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:22:09,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-01-24 16:22:10,088 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:22:10,092 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:22:10,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:22:10,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:22:10,098 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:22:10,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:22:10" (1/1) ... [2018-01-24 16:22:10,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb333df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:10, skipping insertion in model container [2018-01-24 16:22:10,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:22:10" (1/1) ... [2018-01-24 16:22:10,116 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:22:10,153 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:22:10,275 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:22:10,296 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:22:10,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:10 WrapperNode [2018-01-24 16:22:10,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:22:10,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:22:10,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:22:10,306 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:22:10,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:10" (1/1) ... [2018-01-24 16:22:10,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:10" (1/1) ... [2018-01-24 16:22:10,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:10" (1/1) ... [2018-01-24 16:22:10,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:10" (1/1) ... [2018-01-24 16:22:10,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:10" (1/1) ... [2018-01-24 16:22:10,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:10" (1/1) ... [2018-01-24 16:22:10,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:10" (1/1) ... [2018-01-24 16:22:10,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:22:10,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:22:10,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:22:10,345 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:22:10,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:10" (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 16:22:10,392 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:22:10,392 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:22:10,392 INFO L136 BoogieDeclarations]: Found implementation of procedure cstpncpy [2018-01-24 16:22:10,393 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:22:10,393 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 16:22:10,393 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 16:22:10,393 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:22:10,393 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:22:10,393 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:22:10,394 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:22:10,394 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:22:10,394 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:22:10,394 INFO L128 BoogieDeclarations]: Found specification of procedure cstpncpy [2018-01-24 16:22:10,394 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:22:10,394 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:22:10,395 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:22:10,687 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:22:10,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:22:10 BoogieIcfgContainer [2018-01-24 16:22:10,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:22:10,688 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:22:10,688 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:22:10,689 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:22:10,690 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:22:10" (1/1) ... [2018-01-24 16:22:10,745 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:22:13,277 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:22:13,308 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:22:13,314 INFO L268 AbstractInterpreter]: Visited 78 different actions 499 times. Merged at 46 different actions 207 times. Never widened. Found 46 fixpoints after 11 different actions. Largest state had 45 variables. [2018-01-24 16:22:13,316 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:22:13,317 INFO L168 Benchmark]: Toolchain (without parser) took 3228.78 ms. Allocated memory was 304.1 MB in the beginning and 480.2 MB in the end (delta: 176.2 MB). Free memory was 263.1 MB in the beginning and 217.5 MB in the end (delta: 45.7 MB). Peak memory consumption was 221.8 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:13,318 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 304.1 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:22:13,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.88 ms. Allocated memory is still 304.1 MB. Free memory was 263.1 MB in the beginning and 253.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:13,319 INFO L168 Benchmark]: Boogie Preprocessor took 38.48 ms. Allocated memory is still 304.1 MB. Free memory was 253.1 MB in the beginning and 251.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:13,319 INFO L168 Benchmark]: RCFGBuilder took 343.10 ms. Allocated memory is still 304.1 MB. Free memory was 251.1 MB in the beginning and 226.5 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:13,319 INFO L168 Benchmark]: Abstract Interpretation took 2627.98 ms. Allocated memory was 304.1 MB in the beginning and 480.2 MB in the end (delta: 176.2 MB). Free memory was 226.5 MB in the beginning and 217.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 185.2 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:13,322 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 304.1 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 212.88 ms. Allocated memory is still 304.1 MB. Free memory was 263.1 MB in the beginning and 253.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 38.48 ms. Allocated memory is still 304.1 MB. Free memory was 253.1 MB in the beginning and 251.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 343.10 ms. Allocated memory is still 304.1 MB. Free memory was 251.1 MB in the beginning and 226.5 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 2627.98 ms. Allocated memory was 304.1 MB in the beginning and 480.2 MB in the end (delta: 176.2 MB). Free memory was 226.5 MB in the beginning and 217.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 185.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 62 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 780 LocStat_NO_SUPPORTING_DISEQUALITIES : 366 LocStat_NO_DISJUNCTIONS : -124 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 84 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 139 TransStat_NO_SUPPORTING_DISEQUALITIES : 23 TransStat_NO_DISJUNCTIONS : 92 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.026166 RENAME_VARIABLES(MILLISECONDS) : 0.058376 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.001204 PROJECTAWAY(MILLISECONDS) : 0.059969 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001125 DISJOIN(MILLISECONDS) : 0.268109 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.079616 ADD_EQUALITY(MILLISECONDS) : 0.020491 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.023662 #CONJOIN_DISJUNCTIVE : 755 #RENAME_VARIABLES : 1642 #UNFREEZE : 0 #CONJOIN : 1087 #PROJECTAWAY : 957 #ADD_WEAK_EQUALITY : 46 #DISJOIN : 259 #RENAME_VARIABLES_DISJUNCTIVE : 1566 #ADD_EQUALITY : 166 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 18 - 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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-1] = '\0' [L570] CALL cstpncpy(nondetArea, nondetString, n) - 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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-1] = '\0' [L570] CALL cstpncpy(nondetArea, nondetString, n) [L543] COND FALSE !(n != 0) [L556] FCALL \read(*dst) - 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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-1] = '\0' [L570] CALL cstpncpy(nondetArea, nondetString, n) [L543] COND TRUE n != 0 [L544] FCALL \read(*dst) - 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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-1] = '\0' [L570] CALL cstpncpy(nondetArea, nondetString, n) [L543] COND TRUE n != 0 [L544] EXPR, FCALL \read(*dst) [L544] char *d = dst; [L545] const char *s = src; [L546] FCALL \read(*dst) - 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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-1] = '\0' [L570] CALL cstpncpy(nondetArea, nondetString, n) [L543] COND TRUE n != 0 [L544] EXPR, FCALL \read(*dst) [L544] char *d = dst; [L545] const char *s = src; [L546] EXPR, FCALL \read(*dst) [L546] FCALL dst = &dst[n] - 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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-1] = '\0' [L570] CALL cstpncpy(nondetArea, nondetString, n) [L543] COND TRUE n != 0 [L544] EXPR, FCALL \read(*dst) [L544] char *d = dst; [L545] const char *s = src; [L546] EXPR, FCALL \read(*dst) [L546] FCALL dst = &dst[n] [L548] d++ [L548] s++ - 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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-1] = '\0' [L570] CALL cstpncpy(nondetArea, nondetString, n) [L543] COND TRUE n != 0 [L544] EXPR, FCALL \read(*dst) [L544] char *d = dst; [L545] const char *s = src; [L546] EXPR, FCALL \read(*dst) [L546] FCALL dst = &dst[n] [L548] d++ [L548] s++ - 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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-1] = '\0' [L570] CALL cstpncpy(nondetArea, nondetString, n) [L543] COND TRUE n != 0 [L544] EXPR, FCALL \read(*dst) [L544] char *d = dst; [L545] const char *s = src; [L546] EXPR, FCALL \read(*dst) [L546] FCALL dst = &dst[n] [L548] EXPR d++ [L548] EXPR s++ [L548] FCALL *d++ = *s++ - 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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-1] = '\0' [L570] CALL cstpncpy(nondetArea, nondetString, n) [L543] COND TRUE n != 0 [L544] EXPR, FCALL \read(*dst) [L544] char *d = dst; [L545] const char *s = src; [L546] EXPR, FCALL \read(*dst) [L546] FCALL dst = &dst[n] [L548] EXPR d++ [L548] EXPR s++ [L548] FCALL *d++ = *s++ - 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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-1] = '\0' [L570] CALL cstpncpy(nondetArea, nondetString, n) [L543] COND TRUE n != 0 [L544] EXPR, FCALL \read(*dst) [L544] char *d = dst; [L545] const char *s = src; [L546] EXPR, FCALL \read(*dst) [L546] FCALL dst = &dst[n] [L548] EXPR d++ [L548] EXPR s++ [L548] EXPR, FCALL *d++ = *s++ [L548] COND TRUE (*d++ = *s++) == 0 [L549] FCALL dst = d - 1 - UnprovableResult [Line: 558]: 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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-1] = '\0' [L570] CALL cstpncpy(nondetArea, nondetString, n) [L543] COND FALSE !(n != 0) [L556] EXPR, FCALL \read(*dst) [L556] return (dst); [L556] RET return (dst); [L570] cstpncpy(nondetArea, nondetString, n) [L571] return 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: [L559] int length = __VERIFIER_nondet_int(); [L560] int n = __VERIFIER_nondet_int(); [L561] COND TRUE length < 1 [L562] length = 1 [L564] COND TRUE n < 1 [L565] n = 1 [L567] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L567] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L568] EXPR, FCALL __builtin_alloca (length * sizeof(char)) [L568] char* nondetString = (char*) __builtin_alloca (length * sizeof(char)); [L569] FCALL nondetString[length-1] = '\0' [L570] CALL cstpncpy(nondetArea, nondetString, n) [L543] COND TRUE n != 0 [L544] EXPR, FCALL \read(*dst) [L544] char *d = dst; [L545] const char *s = src; [L546] EXPR, FCALL \read(*dst) [L546] FCALL dst = &dst[n] [L548] EXPR d++ [L548] EXPR s++ [L548] EXPR, FCALL *d++ = *s++ [L548] COND TRUE (*d++ = *s++) == 0 [L549] FCALL dst = d - 1 [L550] EXPR --n [L550] COND TRUE --n != 0 [L551] EXPR d++ [L551] FCALL *d++ = 0 - 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 - 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 - 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 - 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_cstpncpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-22-13-334.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-22-13-334.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-22-13-334.csv Received shutdown request...