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/memsafety-ext/dll_extends_pointer_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:27:01,035 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:27:01,069 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:27:01,085 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:27:01,085 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:27:01,086 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:27:01,087 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:27:01,089 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:27:01,091 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:27:01,092 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:27:01,093 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:27:01,093 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:27:01,094 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:27:01,095 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:27:01,096 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:27:01,099 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:27:01,101 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:27:01,103 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:27:01,104 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:27:01,105 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:27:01,108 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:27:01,113 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:27:01,114 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:27:01,114 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 16:27:01,122 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:27:01,123 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:27:01,123 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:27:01,124 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:27:01,124 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:27:01,124 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:27:01,124 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:27:01,124 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:27:01,125 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:27:01,125 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:27:01,125 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:27:01,125 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:27:01,125 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:27:01,125 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:27:01,125 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:27:01,126 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:27:01,126 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:27:01,126 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:27:01,126 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:27:01,126 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:27:01,126 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:27:01,126 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:27:01,127 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:27:01,127 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:27:01,127 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:27:01,127 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:27:01,127 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:27:01,128 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:27:01,128 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:27:01,128 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:27:01,128 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:27:01,128 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:27:01,128 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:27:01,129 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:27:01,129 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:27:01,165 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:27:01,177 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:27:01,181 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:27:01,182 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:27:01,182 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:27:01,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext/dll_extends_pointer_true-valid-memsafety.i [2018-01-24 16:27:01,358 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:27:01,364 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:27:01,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:27:01,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:27:01,370 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:27:01,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:27:01" (1/1) ... [2018-01-24 16:27:01,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d68a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:27:01, skipping insertion in model container [2018-01-24 16:27:01,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:27:01" (1/1) ... [2018-01-24 16:27:01,389 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:27:01,426 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:27:01,547 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:27:01,570 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:27:01,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:27:01 WrapperNode [2018-01-24 16:27:01,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:27:01,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:27:01,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:27:01,578 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:27:01,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:27:01" (1/1) ... [2018-01-24 16:27:01,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:27:01" (1/1) ... [2018-01-24 16:27:01,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:27:01" (1/1) ... [2018-01-24 16:27:01,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:27:01" (1/1) ... [2018-01-24 16:27:01,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:27:01" (1/1) ... [2018-01-24 16:27:01,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:27:01" (1/1) ... [2018-01-24 16:27:01,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:27:01" (1/1) ... [2018-01-24 16:27:01,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:27:01,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:27:01,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:27:01,617 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:27:01,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:27:01" (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 16:27:01,667 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:27:01,667 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:27:01,667 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:27:01,667 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 16:27:01,668 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 16:27:01,668 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:27:01,668 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:27:01,668 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:27:01,668 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:27:01,668 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 16:27:01,669 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:27:01,669 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:27:01,669 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:27:01,669 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:27:01,937 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:27:01,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:27:01 BoogieIcfgContainer [2018-01-24 16:27:01,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:27:01,939 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:27:01,939 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:27:01,939 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:27:01,940 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:27:01" (1/1) ... [2018-01-24 16:27:01,982 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:27:03,871 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:27:03,901 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:27:03,905 INFO L268 AbstractInterpreter]: Visited 70 different actions 286 times. Merged at 46 different actions 154 times. Widened at 1 different actions 2 times. Found 34 fixpoints after 23 different actions. Largest state had 31 variables. [2018-01-24 16:27:03,908 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:27:03,909 INFO L168 Benchmark]: Toolchain (without parser) took 2550.38 ms. Allocated memory was 306.2 MB in the beginning and 393.2 MB in the end (delta: 87.0 MB). Free memory was 266.1 MB in the beginning and 217.7 MB in the end (delta: 48.4 MB). Peak memory consumption was 135.4 MB. Max. memory is 5.3 GB. [2018-01-24 16:27:03,910 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 306.2 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:27:03,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.97 ms. Allocated memory is still 306.2 MB. Free memory was 265.1 MB in the beginning and 255.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:27:03,910 INFO L168 Benchmark]: Boogie Preprocessor took 38.51 ms. Allocated memory is still 306.2 MB. Free memory was 255.0 MB in the beginning and 253.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:27:03,911 INFO L168 Benchmark]: RCFGBuilder took 321.82 ms. Allocated memory is still 306.2 MB. Free memory was 253.0 MB in the beginning and 231.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:27:03,911 INFO L168 Benchmark]: Abstract Interpretation took 1969.33 ms. Allocated memory was 306.2 MB in the beginning and 393.2 MB in the end (delta: 87.0 MB). Free memory was 231.9 MB in the beginning and 217.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 101.2 MB. Max. memory is 5.3 GB. [2018-01-24 16:27:03,913 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 306.2 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 212.97 ms. Allocated memory is still 306.2 MB. Free memory was 265.1 MB in the beginning and 255.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 38.51 ms. Allocated memory is still 306.2 MB. Free memory was 255.0 MB in the beginning and 253.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 321.82 ms. Allocated memory is still 306.2 MB. Free memory was 253.0 MB in the beginning and 231.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 1969.33 ms. Allocated memory was 306.2 MB in the beginning and 393.2 MB in the end (delta: 87.0 MB). Free memory was 231.9 MB in the beginning and 217.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 101.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 57 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 583 LocStat_NO_SUPPORTING_DISEQUALITIES : 185 LocStat_NO_DISJUNCTIONS : -114 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 74 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 134 TransStat_NO_SUPPORTING_DISEQUALITIES : 38 TransStat_NO_DISJUNCTIONS : 90 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.715939 RENAME_VARIABLES(MILLISECONDS) : 0.230213 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.307813 PROJECTAWAY(MILLISECONDS) : 0.047791 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001188 DISJOIN(MILLISECONDS) : 0.483557 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.258465 ADD_EQUALITY(MILLISECONDS) : 0.033036 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.010593 #CONJOIN_DISJUNCTIVE : 500 #RENAME_VARIABLES : 1076 #UNFREEZE : 0 #CONJOIN : 760 #PROJECTAWAY : 625 #ADD_WEAK_EQUALITY : 37 #DISJOIN : 120 #RENAME_VARIABLES_DISJUNCTIVE : 959 #ADD_EQUALITY : 130 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 28 - 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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data - 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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND FALSE !(__VERIFIER_nondet_int()) [L655] COND TRUE ((void *)0) != list [L657] y = list [L658] FCALL list->next - 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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND TRUE __VERIFIER_nondet_int() [L642] EXPR, FCALL malloc(sizeof(*y)) [L642] y = malloc(sizeof(*y)) [L643] FCALL y->next = list - 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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND TRUE __VERIFIER_nondet_int() [L642] EXPR, FCALL malloc(sizeof(*y)) [L642] y = malloc(sizeof(*y)) [L643] FCALL y->next = list [L644] FCALL list->prev = y - 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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND TRUE __VERIFIER_nondet_int() [L642] EXPR, FCALL malloc(sizeof(*y)) [L642] y = malloc(sizeof(*y)) [L643] FCALL y->next = list [L644] FCALL list->prev = y - 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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND FALSE !(__VERIFIER_nondet_int()) [L655] COND TRUE ((void *)0) != list [L657] y = list [L658] EXPR, FCALL list->next [L658] list = list->next [L659] FCALL y->pData - 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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND FALSE !(__VERIFIER_nondet_int()) [L655] COND TRUE ((void *)0) != list [L657] y = list [L658] EXPR, FCALL list->next [L658] list = list->next [L659] EXPR, FCALL y->pData [L659] COND TRUE &y->data != y->pData [L661] FCALL y->pData - 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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND TRUE __VERIFIER_nondet_int() [L642] EXPR, FCALL malloc(sizeof(*y)) [L642] y = malloc(sizeof(*y)) [L643] FCALL y->next = list [L644] FCALL list->prev = y [L645] COND FALSE !(__VERIFIER_nondet_int()) [L651] FCALL y->pData = &y->data - UnprovableResult [Line: 1]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND FALSE !(__VERIFIER_nondet_int()) [L655] COND TRUE ((void *)0) != list [L657] y = list [L658] EXPR, FCALL list->next [L658] list = list->next [L659] EXPR, FCALL y->pData [L659] COND TRUE &y->data != y->pData [L661] EXPR, FCALL y->pData [L661] FCALL free(y->pData) - UnprovableResult [Line: 1]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND FALSE !(__VERIFIER_nondet_int()) [L655] COND TRUE ((void *)0) != list [L657] y = list [L658] EXPR, FCALL list->next [L658] list = list->next [L659] EXPR, FCALL y->pData [L659] COND TRUE &y->data != y->pData [L661] EXPR, FCALL y->pData [L661] FCALL free(y->pData) - 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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND TRUE __VERIFIER_nondet_int() [L642] EXPR, FCALL malloc(sizeof(*y)) [L642] y = malloc(sizeof(*y)) [L643] FCALL y->next = list [L644] FCALL list->prev = y [L645] COND TRUE __VERIFIER_nondet_int() [L647] EXPR, FCALL malloc(sizeof(*y->pData)) [L647] FCALL y->pData = malloc(sizeof(*y->pData)) - 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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND TRUE __VERIFIER_nondet_int() [L642] EXPR, FCALL malloc(sizeof(*y)) [L642] y = malloc(sizeof(*y)) [L643] FCALL y->next = list [L644] FCALL list->prev = y [L645] COND TRUE __VERIFIER_nondet_int() [L647] EXPR, FCALL malloc(sizeof(*y->pData)) [L647] FCALL y->pData = malloc(sizeof(*y->pData)) - 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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND FALSE !(__VERIFIER_nondet_int()) [L655] COND TRUE ((void *)0) != list [L657] y = list [L658] EXPR, FCALL list->next [L658] list = list->next [L659] EXPR, FCALL y->pData [L659] COND FALSE !(&y->data != y->pData) [L663] FCALL free(y) [L655] COND TRUE ((void *)0) != list [L657] y = list [L658] FCALL list->next - UnprovableResult [Line: 1]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND FALSE !(__VERIFIER_nondet_int()) [L655] COND TRUE ((void *)0) != list [L657] y = list [L658] EXPR, FCALL list->next [L658] list = list->next [L659] EXPR, FCALL y->pData [L659] COND TRUE &y->data != y->pData [L661] EXPR, FCALL y->pData [L661] FCALL free(y->pData) [L663] FCALL free(y) - UnprovableResult [Line: 631]: 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: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND FALSE !(__VERIFIER_nondet_int()) [L655] COND TRUE ((void *)0) != list [L657] y = list [L658] EXPR, FCALL list->next [L658] list = list->next [L659] EXPR, FCALL y->pData [L659] COND FALSE !(&y->data != y->pData) [L663] FCALL free(y) [L655] COND FALSE !(((void *)0) != list) [L665] return 0; - UnprovableResult [Line: 1]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L633] Node* list = ((void *)0); [L634] Node* y = ((void *)0); [L635] EXPR, FCALL malloc(sizeof(*y)) [L635] y = malloc(sizeof(*y)) [L636] FCALL y->next = ((void *)0) [L637] FCALL y->prev = ((void *)0) [L638] FCALL y->pData = &y->data [L639] list = y [L640] COND FALSE !(__VERIFIER_nondet_int()) [L655] COND TRUE ((void *)0) != list [L657] y = list [L658] EXPR, FCALL list->next [L658] list = list->next [L659] EXPR, FCALL y->pData [L659] COND FALSE !(&y->data != y->pData) [L663] FCALL free(y) [L655] COND TRUE ((void *)0) != list [L657] y = list [L658] EXPR, FCALL list->next [L658] list = list->next [L659] EXPR, FCALL y->pData [L659] COND FALSE !(&y->data != y->pData) [L663] FCALL free(y) - 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/dll_extends_pointer_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-27-03-924.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll_extends_pointer_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-27-03-924.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll_extends_pointer_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-27-03-924.csv Received shutdown request...