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.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrcpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 13:56:01,000 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 13:56:01,002 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 13:56:01,017 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 13:56:01,018 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 13:56:01,019 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 13:56:01,020 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 13:56:01,021 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 13:56:01,024 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 13:56:01,024 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 13:56:01,025 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 13:56:01,026 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 13:56:01,026 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 13:56:01,028 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 13:56:01,028 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 13:56:01,031 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 13:56:01,033 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 13:56:01,035 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 13:56:01,036 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 13:56:01,038 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 13:56:01,040 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 13:56:01,045 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.epf [2018-01-24 13:56:01,053 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 13:56:01,054 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 13:56:01,054 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 13:56:01,054 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 13:56:01,055 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 13:56:01,055 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 13:56:01,055 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 13:56:01,055 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 13:56:01,055 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 13:56:01,055 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 13:56:01,056 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 13:56:01,056 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 13:56:01,056 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 13:56:01,056 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 13:56:01,056 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 13:56:01,056 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 13:56:01,056 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 13:56:01,057 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 13:56:01,057 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 13:56:01,057 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 13:56:01,057 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 13:56:01,057 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 13:56:01,057 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 13:56:01,057 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 13:56:01,058 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 13:56:01,058 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 13:56:01,058 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 13:56:01,058 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 13:56:01,058 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 13:56:01,059 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 13:56:01,059 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 13:56:01,059 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 13:56:01,059 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 13:56:01,060 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 13:56:01,093 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 13:56:01,104 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 13:56:01,108 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 13:56:01,109 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 13:56:01,109 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 13:56:01,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-01-24 13:56:01,283 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 13:56:01,288 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 13:56:01,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 13:56:01,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 13:56:01,294 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 13:56:01,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:56:01" (1/1) ... [2018-01-24 13:56:01,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d3f258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:01, skipping insertion in model container [2018-01-24 13:56:01,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:56:01" (1/1) ... [2018-01-24 13:56:01,312 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:56:01,348 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:56:01,466 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:56:01,483 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:56:01,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:01 WrapperNode [2018-01-24 13:56:01,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 13:56:01,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 13:56:01,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 13:56:01,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 13:56:01,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:01" (1/1) ... [2018-01-24 13:56:01,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:01" (1/1) ... [2018-01-24 13:56:01,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:01" (1/1) ... [2018-01-24 13:56:01,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:01" (1/1) ... [2018-01-24 13:56:01,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:01" (1/1) ... [2018-01-24 13:56:01,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:01" (1/1) ... [2018-01-24 13:56:01,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:01" (1/1) ... [2018-01-24 13:56:01,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 13:56:01,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 13:56:01,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 13:56:01,529 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 13:56:01,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:01" (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 13:56:01,576 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 13:56:01,576 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 13:56:01,576 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcpy [2018-01-24 13:56:01,577 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 13:56:01,577 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 13:56:01,577 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 13:56:01,577 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 13:56:01,577 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 13:56:01,577 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 13:56:01,577 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 13:56:01,577 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcpy [2018-01-24 13:56:01,577 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 13:56:01,577 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 13:56:01,578 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 13:56:01,765 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 13:56:01,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:56:01 BoogieIcfgContainer [2018-01-24 13:56:01,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 13:56:01,766 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 13:56:01,766 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 13:56:01,766 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 13:56:01,767 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:56:01" (1/1) ... [2018-01-24 13:56:01,819 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 13:56:32,293 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 13:56:32,308 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 13:56:32,312 INFO L268 AbstractInterpreter]: Visited 44 different actions 309 times. Merged at 29 different actions 163 times. Never widened. Found 21 fixpoints after 6 different actions. Largest state had 29 variables. [2018-01-24 13:56:32,313 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 13:56:32,314 INFO L168 Benchmark]: Toolchain (without parser) took 31030.58 ms. Allocated memory was 298.3 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 258.4 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 109.4 MB. Max. memory is 5.3 GB. [2018-01-24 13:56:32,315 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 298.3 MB. Free memory is still 264.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 13:56:32,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.50 ms. Allocated memory is still 298.3 MB. Free memory was 257.4 MB in the beginning and 247.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-24 13:56:32,315 INFO L168 Benchmark]: Boogie Preprocessor took 36.23 ms. Allocated memory is still 298.3 MB. Free memory was 247.2 MB in the beginning and 246.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 5.3 GB. [2018-01-24 13:56:32,316 INFO L168 Benchmark]: RCFGBuilder took 237.20 ms. Allocated memory is still 298.3 MB. Free memory was 245.2 MB in the beginning and 229.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 5.3 GB. [2018-01-24 13:56:32,316 INFO L168 Benchmark]: Abstract Interpretation took 30547.28 ms. Allocated memory was 298.3 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 229.6 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 80.7 MB. Max. memory is 5.3 GB. [2018-01-24 13:56:32,317 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 298.3 MB. Free memory is still 264.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 202.50 ms. Allocated memory is still 298.3 MB. Free memory was 257.4 MB in the beginning and 247.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.23 ms. Allocated memory is still 298.3 MB. Free memory was 247.2 MB in the beginning and 246.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 237.20 ms. Allocated memory is still 298.3 MB. Free memory was 245.2 MB in the beginning and 229.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 30547.28 ms. Allocated memory was 298.3 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 229.6 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 80.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 36 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 3 LocStat_NO_SUPPORTING_EQUALITIES : 471 LocStat_NO_SUPPORTING_DISEQUALITIES : 69 LocStat_NO_DISJUNCTIONS : -72 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 50 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 79 TransStat_NO_SUPPORTING_DISEQUALITIES : 9 TransStat_NO_DISJUNCTIONS : 52 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 2.422361 RENAME_VARIABLES(MILLISECONDS) : 0.013340 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 1.915584 PROJECTAWAY(MILLISECONDS) : 19.837693 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.050423 DISJOIN(MILLISECONDS) : 0.346258 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.022903 ADD_EQUALITY(MILLISECONDS) : 0.041726 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.006191 #CONJOIN_DISJUNCTIVE : 537 #RENAME_VARIABLES : 1222 #UNFREEZE : 0 #CONJOIN : 810 #PROJECTAWAY : 726 #ADD_WEAK_EQUALITY : 11 #DISJOIN : 165 #RENAME_VARIABLES_DISJUNCTIVE : 1188 #ADD_EQUALITY : 81 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 7 - 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 length2 = __VERIFIER_nondet_int(); [L551] COND FALSE !(length1 < 1) [L554] COND TRUE length2 < 1 [L555] length2 = 1 [L557] COND FALSE !(length1 < length2) [L558] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L558] char* nondetArea = (char*) __builtin_alloca (length1 * sizeof(char)); [L559] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L559] char* nondetString = (char*) __builtin_alloca (length2 * sizeof(char)); [L560] FCALL nondetString[length2-1] = '\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 length2 = __VERIFIER_nondet_int(); [L551] COND FALSE !(length1 < 1) [L554] COND TRUE length2 < 1 [L555] length2 = 1 [L557] COND FALSE !(length1 < length2) [L558] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L558] char* nondetArea = (char*) __builtin_alloca (length1 * sizeof(char)); [L559] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L559] char* nondetString = (char*) __builtin_alloca (length2 * sizeof(char)); [L560] FCALL nondetString[length2-1] = '\0' [L561] CALL cstrcpy(nondetArea,nondetString) [L542] char *dst = s1; [L543] const char *src = s2; [L544] dst++ [L544] src++ - 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 length2 = __VERIFIER_nondet_int(); [L551] COND FALSE !(length1 < 1) [L554] COND TRUE length2 < 1 [L555] length2 = 1 [L557] COND FALSE !(length1 < length2) [L558] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L558] char* nondetArea = (char*) __builtin_alloca (length1 * sizeof(char)); [L559] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L559] char* nondetString = (char*) __builtin_alloca (length2 * sizeof(char)); [L560] FCALL nondetString[length2-1] = '\0' [L561] CALL cstrcpy(nondetArea,nondetString) [L542] char *dst = s1; [L543] const char *src = s2; [L544] EXPR dst++ [L544] EXPR src++ [L544] FCALL *dst++ = *src++ - 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 length2 = __VERIFIER_nondet_int(); [L551] COND FALSE !(length1 < 1) [L554] COND TRUE length2 < 1 [L555] length2 = 1 [L557] COND FALSE !(length1 < length2) [L558] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L558] char* nondetArea = (char*) __builtin_alloca (length1 * sizeof(char)); [L559] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L559] char* nondetString = (char*) __builtin_alloca (length2 * sizeof(char)); [L560] FCALL nondetString[length2-1] = '\0' [L561] CALL cstrcpy(nondetArea,nondetString) [L542] char *dst = s1; [L543] const char *src = s2; [L544] EXPR dst++ [L544] EXPR src++ [L544] EXPR, FCALL *dst++ = *src++ [L544] COND FALSE !((*dst++ = *src++) != '\0') [L546] RET return s1; [L561] cstrcpy(nondetArea,nondetString) [L562] return 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 * 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/cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_13-56-32-326.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_13-56-32-326.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_13-56-32-326.csv Received shutdown request...