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_preciseopt.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 01:53:41,067 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 01:53:41,069 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 01:53:41,082 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 01:53:41,083 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 01:53:41,084 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 01:53:41,085 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 01:53:41,086 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 01:53:41,088 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 01:53:41,089 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 01:53:41,089 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 01:53:41,090 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 01:53:41,090 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 01:53:41,091 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 01:53:41,092 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 01:53:41,095 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 01:53:41,097 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 01:53:41,099 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 01:53:41,100 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 01:53:41,102 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 01:53:41,104 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-25 01:53:41,111 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_preciseopt.epf [2018-01-25 01:53:41,121 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 01:53:41,121 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 01:53:41,122 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 01:53:41,123 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 01:53:41,123 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 01:53:41,123 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 01:53:41,123 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 01:53:41,123 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 01:53:41,124 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 01:53:41,124 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 01:53:41,125 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 01:53:41,125 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 01:53:41,125 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 01:53:41,125 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 01:53:41,125 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 01:53:41,126 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 01:53:41,126 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 01:53:41,126 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 01:53:41,126 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 01:53:41,126 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 01:53:41,127 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 01:53:41,127 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 01:53:41,127 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 01:53:41,127 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 01:53:41,127 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 01:53:41,128 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 01:53:41,128 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 01:53:41,128 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 01:53:41,128 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 01:53:41,129 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 01:53:41,129 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-25 01:53:41,129 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 01:53:41,129 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 01:53:41,129 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 01:53:41,130 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 01:53:41,130 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 01:53:41,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 01:53:41,181 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 01:53:41,185 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 01:53:41,187 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 01:53:41,188 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 01:53:41,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-01-25 01:53:41,407 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 01:53:41,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 01:53:41,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 01:53:41,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 01:53:41,423 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 01:53:41,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 01:53:41" (1/1) ... [2018-01-25 01:53:41,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e63a297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:53:41, skipping insertion in model container [2018-01-25 01:53:41,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 01:53:41" (1/1) ... [2018-01-25 01:53:41,447 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 01:53:41,500 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 01:53:41,622 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 01:53:41,638 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 01:53:41,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:53:41 WrapperNode [2018-01-25 01:53:41,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 01:53:41,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 01:53:41,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 01:53:41,646 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 01:53:41,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:53:41" (1/1) ... [2018-01-25 01:53:41,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:53:41" (1/1) ... [2018-01-25 01:53:41,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:53:41" (1/1) ... [2018-01-25 01:53:41,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:53:41" (1/1) ... [2018-01-25 01:53:41,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:53:41" (1/1) ... [2018-01-25 01:53:41,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:53:41" (1/1) ... [2018-01-25 01:53:41,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:53:41" (1/1) ... [2018-01-25 01:53:41,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 01:53:41,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 01:53:41,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 01:53:41,684 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 01:53:41,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:53:41" (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 01:53:41,730 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 01:53:41,730 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 01:53:41,731 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-25 01:53:41,731 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-25 01:53:41,731 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 01:53:41,731 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 01:53:41,731 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 01:53:41,731 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 01:53:41,731 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 01:53:41,731 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 01:53:41,731 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 01:53:41,731 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 01:53:41,732 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-25 01:53:41,732 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-25 01:53:41,732 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 01:53:41,732 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 01:53:41,732 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 01:53:41,877 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 01:53:41,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 01:53:41 BoogieIcfgContainer [2018-01-25 01:53:41,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 01:53:41,878 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-25 01:53:41,878 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-25 01:53:41,879 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-25 01:53:41,879 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 01:53:41" (1/1) ... [2018-01-25 01:53:41,939 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 01:54:17,025 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 01:54:17,043 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-25 01:54:17,052 INFO L268 AbstractInterpreter]: Visited 35 different actions 107 times. Merged at 13 different actions 42 times. Never widened. Found 8 fixpoints after 3 different actions. Largest state had 25 variables. [2018-01-25 01:54:17,054 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-25 01:54:17,055 INFO L168 Benchmark]: Toolchain (without parser) took 35647.70 ms. Allocated memory was 307.8 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 266.7 MB in the beginning and 179.3 MB in the end (delta: 87.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 5.3 GB. [2018-01-25 01:54:17,056 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 307.8 MB. Free memory is still 273.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 01:54:17,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.44 ms. Allocated memory is still 307.8 MB. Free memory was 266.7 MB in the beginning and 253.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 5.3 GB. [2018-01-25 01:54:17,057 INFO L168 Benchmark]: Boogie Preprocessor took 37.98 ms. Allocated memory is still 307.8 MB. Free memory was 253.3 MB in the beginning and 252.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-25 01:54:17,058 INFO L168 Benchmark]: RCFGBuilder took 194.01 ms. Allocated memory is still 307.8 MB. Free memory was 252.4 MB in the beginning and 237.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 5.3 GB. [2018-01-25 01:54:17,058 INFO L168 Benchmark]: Abstract Interpretation took 35176.34 ms. Allocated memory was 307.8 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 237.1 MB in the beginning and 179.3 MB in the end (delta: 57.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. [2018-01-25 01:54:17,060 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 307.8 MB. Free memory is still 273.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 230.44 ms. Allocated memory is still 307.8 MB. Free memory was 266.7 MB in the beginning and 253.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.98 ms. Allocated memory is still 307.8 MB. Free memory was 253.3 MB in the beginning and 252.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 194.01 ms. Allocated memory is still 307.8 MB. Free memory was 252.4 MB in the beginning and 237.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 35176.34 ms. Allocated memory was 307.8 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 237.1 MB in the beginning and 179.3 MB in the end (delta: 57.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 29 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 154 LocStat_NO_SUPPORTING_DISEQUALITIES : 26 LocStat_NO_DISJUNCTIONS : -58 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 43 TransStat_MAX_WEQGRAPH_SIZE : 4 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 61 TransStat_NO_SUPPORTING_DISEQUALITIES : 7 TransStat_NO_DISJUNCTIONS : 44 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.273221 RENAME_VARIABLES(MILLISECONDS) : 0.169935 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.248503 PROJECTAWAY(MILLISECONDS) : 0.141470 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.063130 DISJOIN(MILLISECONDS) : 0.433776 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.187413 ADD_EQUALITY(MILLISECONDS) : 0.044106 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.016217 #CONJOIN_DISJUNCTIVE : 178 #RENAME_VARIABLES : 415 #UNFREEZE : 0 #CONJOIN : 321 #PROJECTAWAY : 294 #ADD_WEAK_EQUALITY : 7 #DISJOIN : 60 #RENAME_VARIABLES_DISJUNCTIVE : 406 #ADD_EQUALITY : 63 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 6 - UnprovableResult [Line: 1452]: 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: [L1453] CALL entry_point() [L1439] int len = 10; [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L1073] COND FALSE !(__VERIFIER_nondet_int()) [L1076] RET return 0; [L1440] EXPR ldv_malloc(sizeof(struct A18*)*len) [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; [L1443] COND TRUE, RET !array [L1453] entry_point() - 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: [L1453] CALL entry_point() [L1439] int len = 10; [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) [L1074] RET return malloc(size); [L1440] EXPR ldv_malloc(sizeof(struct A18*)*len) [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; [L1443] COND FALSE !(!array) [L1444] COND TRUE i