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_precise.epf -i ../../../trunk/examples/svcomp/array-memsafety/stroeder2-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 21:38:51,218 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 21:38:51,220 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 21:38:51,235 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 21:38:51,235 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 21:38:51,236 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 21:38:51,237 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 21:38:51,239 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 21:38:51,240 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 21:38:51,241 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 21:38:51,242 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 21:38:51,243 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 21:38:51,244 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 21:38:51,245 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 21:38:51,246 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 21:38:51,248 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 21:38:51,250 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 21:38:51,252 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 21:38:51,254 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 21:38:51,255 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 21:38:51,257 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 21:38:51,263 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_precise.epf [2018-01-24 21:38:51,271 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 21:38:51,271 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 21:38:51,272 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 21:38:51,272 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 21:38:51,272 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 21:38:51,273 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 21:38:51,273 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 21:38:51,273 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 21:38:51,273 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 21:38:51,273 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 21:38:51,273 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 21:38:51,273 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 21:38:51,274 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 21:38:51,274 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 21:38:51,274 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 21:38:51,274 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 21:38:51,274 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 21:38:51,274 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 21:38:51,274 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 21:38:51,275 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 21:38:51,275 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 21:38:51,275 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 21:38:51,275 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 21:38:51,275 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 21:38:51,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 21:38:51,276 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 21:38:51,276 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 21:38:51,276 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 21:38:51,276 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 21:38:51,276 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 21:38:51,276 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 21:38:51,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 21:38:51,277 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 21:38:51,277 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 21:38:51,277 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 21:38:51,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 21:38:51,320 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 21:38:51,323 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 21:38:51,325 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 21:38:51,325 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 21:38:51,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/stroeder2-alloca_true-valid-memsafety_true-termination.i [2018-01-24 21:38:51,483 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 21:38:51,488 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 21:38:51,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 21:38:51,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 21:38:51,495 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 21:38:51,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 09:38:51" (1/1) ... [2018-01-24 21:38:51,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f741a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 09:38:51, skipping insertion in model container [2018-01-24 21:38:51,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 09:38:51" (1/1) ... [2018-01-24 21:38:51,513 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 21:38:51,552 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 21:38:51,668 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 21:38:51,683 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 21:38:51,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 09:38:51 WrapperNode [2018-01-24 21:38:51,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 21:38:51,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 21:38:51,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 21:38:51,691 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 21:38:51,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 09:38:51" (1/1) ... [2018-01-24 21:38:51,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 09:38:51" (1/1) ... [2018-01-24 21:38:51,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 09:38:51" (1/1) ... [2018-01-24 21:38:51,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 09:38:51" (1/1) ... [2018-01-24 21:38:51,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 09:38:51" (1/1) ... [2018-01-24 21:38:51,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 09:38:51" (1/1) ... [2018-01-24 21:38:51,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 09:38:51" (1/1) ... [2018-01-24 21:38:51,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 21:38:51,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 21:38:51,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 21:38:51,729 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 21:38:51,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 09:38:51" (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 21:38:51,784 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 21:38:51,784 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 21:38:51,784 INFO L136 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2018-01-24 21:38:51,784 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 21:38:51,784 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 21:38:51,785 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 21:38:51,785 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 21:38:51,785 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 21:38:51,785 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 21:38:51,785 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 21:38:51,785 INFO L128 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2018-01-24 21:38:51,786 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 21:38:51,786 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 21:38:51,786 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 21:38:51,948 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 21:38:51,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 09:38:51 BoogieIcfgContainer [2018-01-24 21:38:51,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 21:38:51,950 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 21:38:51,950 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 21:38:51,950 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 21:38:51,951 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 09:38:51" (1/1) ... [2018-01-24 21:38:52,006 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 21:39:13,017 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 21:39:13,037 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 21:39:13,040 INFO L268 AbstractInterpreter]: Visited 42 different actions 258 times. Merged at 28 different actions 141 times. Never widened. Found 18 fixpoints after 5 different actions. Largest state had 26 variables. [2018-01-24 21:39:13,041 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 21:39:13,042 INFO L168 Benchmark]: Toolchain (without parser) took 21558.68 ms. Allocated memory was 304.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 263.7 MB in the beginning and 514.7 MB in the end (delta: -251.0 MB). Peak memory consumption was 963.8 MB. Max. memory is 5.3 GB. [2018-01-24 21:39:13,043 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 304.6 MB. Free memory is still 269.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 21:39:13,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.53 ms. Allocated memory is still 304.6 MB. Free memory was 263.7 MB in the beginning and 253.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-24 21:39:13,043 INFO L168 Benchmark]: Boogie Preprocessor took 37.07 ms. Allocated memory is still 304.6 MB. Free memory was 253.6 MB in the beginning and 251.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 21:39:13,043 INFO L168 Benchmark]: RCFGBuilder took 221.09 ms. Allocated memory is still 304.6 MB. Free memory was 251.7 MB in the beginning and 237.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-01-24 21:39:13,044 INFO L168 Benchmark]: Abstract Interpretation took 21091.48 ms. Allocated memory was 304.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 237.1 MB in the beginning and 514.7 MB in the end (delta: -277.6 MB). Peak memory consumption was 937.2 MB. Max. memory is 5.3 GB. [2018-01-24 21:39:13,045 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 304.6 MB. Free memory is still 269.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 201.53 ms. Allocated memory is still 304.6 MB. Free memory was 263.7 MB in the beginning and 253.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.07 ms. Allocated memory is still 304.6 MB. Free memory was 253.6 MB in the beginning and 251.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 221.09 ms. Allocated memory is still 304.6 MB. Free memory was 251.7 MB in the beginning and 237.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 21091.48 ms. Allocated memory was 304.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 237.1 MB in the beginning and 514.7 MB in the end (delta: -277.6 MB). Peak memory consumption was 937.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 34 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 306 LocStat_NO_SUPPORTING_DISEQUALITIES : 28 LocStat_NO_DISJUNCTIONS : -68 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 48 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 60 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 49 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 2.070487 RENAME_VARIABLES(MILLISECONDS) : 0.008936 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 1.813271 PROJECTAWAY(MILLISECONDS) : 181.119227 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.053812 DISJOIN(MILLISECONDS) : 0.131589 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.019237 ADD_EQUALITY(MILLISECONDS) : 0.044879 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.008961 #CONJOIN_DISJUNCTIVE : 438 #RENAME_VARIABLES : 955 #UNFREEZE : 0 #CONJOIN : 604 #PROJECTAWAY : 559 #ADD_WEAK_EQUALITY : 6 #DISJOIN : 107 #RENAME_VARIABLES_DISJUNCTIVE : 937 #ADD_EQUALITY : 61 #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: [L556] int array_size = __VERIFIER_nondet_int(); [L557] COND TRUE array_size < 1 || array_size >= 2147483647 / sizeof(int) [L558] array_size = 1 [L560] EXPR, FCALL __builtin_alloca (array_size * sizeof(int)) [L560] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L561] CALL sumOfThirdBytes(numbers, array_size) [L542] int i, sum; [L543] char* p; [L544] sum = 0 [L545] i = 0 [L545] COND TRUE i < array_size [L546] p = &(numbers[i]) [L547] p = p + 2 [L548] FCALL \read(*p) - 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: [L556] int array_size = __VERIFIER_nondet_int(); [L557] COND TRUE array_size < 1 || array_size >= 2147483647 / sizeof(int) [L558] array_size = 1 [L560] EXPR, FCALL __builtin_alloca (array_size * sizeof(int)) [L560] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L561] CALL sumOfThirdBytes(numbers, array_size) [L542] int i, sum; [L543] char* p; [L544] sum = 0 [L545] i = 0 [L545] COND TRUE i < array_size [L546] p = &(numbers[i]) [L547] p = p + 2 [L548] EXPR, FCALL \read(*p) [L548] COND TRUE *p > 0 [L549] sum++ [L550] FCALL \read(*p) - 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: [L556] int array_size = __VERIFIER_nondet_int(); [L557] COND TRUE array_size < 1 || array_size >= 2147483647 / sizeof(int) [L558] array_size = 1 [L560] EXPR, FCALL __builtin_alloca (array_size * sizeof(int)) [L560] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L561] CALL sumOfThirdBytes(numbers, array_size) [L542] int i, sum; [L543] char* p; [L544] sum = 0 [L545] i = 0 [L545] COND TRUE i < array_size [L546] p = &(numbers[i]) [L547] p = p + 2 [L548] EXPR, FCALL \read(*p) [L548] COND TRUE *p > 0 [L549] sum++ [L550] EXPR, FCALL \read(*p) [L550] (*p)-- - UnprovableResult [Line: 555]: 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: [L556] int array_size = __VERIFIER_nondet_int(); [L557] COND TRUE array_size < 1 || array_size >= 2147483647 / sizeof(int) [L558] array_size = 1 [L560] EXPR, FCALL __builtin_alloca (array_size * sizeof(int)) [L560] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L561] CALL, EXPR sumOfThirdBytes(numbers, array_size) [L542] int i, sum; [L543] char* p; [L544] sum = 0 [L545] i = 0 [L545] COND FALSE !(i < array_size) [L553] RET return sum; [L561] EXPR sumOfThirdBytes(numbers, array_size) [L561] return sumOfThirdBytes(numbers, array_size); - 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/stroeder2-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_precise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_21-39-13-051.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder2-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_precise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_21-39-13-051.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder2-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_precise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_21-39-13-051.csv Received shutdown request...