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/test-0513_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:26:49,890 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:26:49,892 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:26:49,908 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:26:49,908 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:26:49,909 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:26:49,910 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:26:49,911 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:26:49,913 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:26:49,913 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:26:49,914 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:26:49,914 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:26:49,915 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:26:49,916 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:26:49,917 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:26:49,919 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:26:49,922 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:26:49,924 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:26:49,925 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:26:49,926 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:26:49,928 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:26:49,933 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:26:49,934 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:26:49,934 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 16:26:49,944 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:26:49,944 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:26:49,945 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:26:49,945 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:26:49,945 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:26:49,945 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:26:49,946 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:26:49,946 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:26:49,946 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:26:49,947 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:26:49,947 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:26:49,947 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:26:49,947 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:26:49,947 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:26:49,947 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:26:49,948 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:26:49,948 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:26:49,948 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:26:49,948 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:26:49,948 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:26:49,949 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:26:49,949 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:26:49,949 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:26:49,949 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:26:49,949 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:26:49,950 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:26:49,950 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:26:49,950 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:26:49,950 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:26:49,950 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:26:49,951 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:26:49,951 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:26:49,951 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:26:49,952 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:26:49,952 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:26:49,987 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:26:49,999 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:26:50,003 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:26:50,005 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:26:50,005 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:26:50,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0513_true-valid-memsafety.i [2018-01-24 16:26:50,199 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:26:50,205 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:26:50,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:26:50,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:26:50,210 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:26:50,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:26:50" (1/1) ... [2018-01-24 16:26:50,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8bf943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:26:50, skipping insertion in model container [2018-01-24 16:26:50,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:26:50" (1/1) ... [2018-01-24 16:26:50,226 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:26:50,264 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:26:50,378 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:26:50,397 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:26:50,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:26:50 WrapperNode [2018-01-24 16:26:50,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:26:50,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:26:50,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:26:50,405 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:26:50,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:26:50" (1/1) ... [2018-01-24 16:26:50,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:26:50" (1/1) ... [2018-01-24 16:26:50,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:26:50" (1/1) ... [2018-01-24 16:26:50,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:26:50" (1/1) ... [2018-01-24 16:26:50,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:26:50" (1/1) ... [2018-01-24 16:26:50,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:26:50" (1/1) ... [2018-01-24 16:26:50,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:26:50" (1/1) ... [2018-01-24 16:26:50,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:26:50,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:26:50,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:26:50,444 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:26:50,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:26:50" (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 16:26:50,497 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:26:50,497 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:26:50,497 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:26:50,497 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 16:26:50,497 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 16:26:50,498 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:26:50,498 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:26:50,498 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:26:50,498 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:26:50,498 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:26:50,498 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 16:26:50,498 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:26:50,498 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-01-24 16:26:50,498 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:26:50,498 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:26:50,499 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:26:50,499 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:26:51,015 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:26:51,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:26:51 BoogieIcfgContainer [2018-01-24 16:26:51,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:26:51,017 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:26:51,017 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:26:51,017 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:26:51,019 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:26:51" (1/1) ... [2018-01-24 16:26:51,062 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:26:55,759 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:26:55,820 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:26:55,859 INFO L268 AbstractInterpreter]: Visited 150 different actions 637 times. Merged at 106 different actions 366 times. Widened at 3 different actions 4 times. Found 47 fixpoints after 24 different actions. Largest state had 59 variables. [2018-01-24 16:26:55,862 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:26:55,863 INFO L168 Benchmark]: Toolchain (without parser) took 5663.56 ms. Allocated memory was 302.0 MB in the beginning and 829.9 MB in the end (delta: 528.0 MB). Free memory was 262.0 MB in the beginning and 402.8 MB in the end (delta: -140.8 MB). Peak memory consumption was 387.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:26:55,863 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 302.0 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:26:55,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.12 ms. Allocated memory is still 302.0 MB. Free memory was 261.0 MB in the beginning and 250.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:26:55,864 INFO L168 Benchmark]: Boogie Preprocessor took 38.37 ms. Allocated memory is still 302.0 MB. Free memory was 250.0 MB in the beginning and 248.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:26:55,864 INFO L168 Benchmark]: RCFGBuilder took 573.01 ms. Allocated memory is still 302.0 MB. Free memory was 248.0 MB in the beginning and 213.3 MB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 5.3 GB. [2018-01-24 16:26:55,865 INFO L168 Benchmark]: Abstract Interpretation took 4845.04 ms. Allocated memory was 302.0 MB in the beginning and 829.9 MB in the end (delta: 528.0 MB). Free memory was 212.3 MB in the beginning and 402.8 MB in the end (delta: -190.6 MB). Peak memory consumption was 337.4 MB. Max. memory is 5.3 GB. [2018-01-24 16:26:55,866 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 302.0 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 199.12 ms. Allocated memory is still 302.0 MB. Free memory was 261.0 MB in the beginning and 250.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 38.37 ms. Allocated memory is still 302.0 MB. Free memory was 250.0 MB in the beginning and 248.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 573.01 ms. Allocated memory is still 302.0 MB. Free memory was 248.0 MB in the beginning and 213.3 MB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 4845.04 ms. Allocated memory was 302.0 MB in the beginning and 829.9 MB in the end (delta: 528.0 MB). Free memory was 212.3 MB in the beginning and 402.8 MB in the end (delta: -190.6 MB). Peak memory consumption was 337.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 118 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 1238 LocStat_NO_SUPPORTING_DISEQUALITIES : 471 LocStat_NO_DISJUNCTIONS : -236 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 154 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 260 TransStat_NO_SUPPORTING_DISEQUALITIES : 73 TransStat_NO_DISJUNCTIONS : 195 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.002910 RENAME_VARIABLES(MILLISECONDS) : 0.225510 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.000723 PROJECTAWAY(MILLISECONDS) : 0.062107 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001216 DISJOIN(MILLISECONDS) : 0.720365 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.251476 ADD_EQUALITY(MILLISECONDS) : 0.014345 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.035405 #CONJOIN_DISJUNCTIVE : 1312 #RENAME_VARIABLES : 2866 #UNFREEZE : 0 #CONJOIN : 1916 #PROJECTAWAY : 1599 #ADD_WEAK_EQUALITY : 74 #DISJOIN : 523 #RENAME_VARIABLES_DISJUNCTIVE : 2523 #ADD_EQUALITY : 279 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 60 - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] FCALL data->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND FALSE !(data->next != data) [L679] FCALL data->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] FCALL data->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] FCALL data->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] FCALL data->next->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] FCALL data->next->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND FALSE !(data->next != data) [L679] EXPR, FCALL data->data [L679] item = data->data [L680] FCALL free(data) [L681] COND TRUE \read(*item) [L682] item2 = item [L683] FCALL item->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND FALSE !(data->next != data) [L679] EXPR, FCALL data->data [L679] item = data->data [L680] FCALL free(data) [L681] COND TRUE \read(*item) [L682] item2 = item [L683] FCALL item->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] FCALL data->next - UnprovableResult [Line: 628]: 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND FALSE !(data->next != data) [L679] EXPR, FCALL data->data [L679] item = data->data [L680] FCALL free(data) [L681] COND FALSE !(\read(*item)) [L686] return 0; - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND TRUE \read(*data) [L640] FCALL data->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND TRUE \read(*data) [L640] FCALL data->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND FALSE !(data->next != data) [L679] EXPR, FCALL data->data [L679] item = data->data [L680] FCALL free(data) [L681] COND TRUE \read(*item) [L682] item2 = item [L683] EXPR, FCALL item->next [L683] item = item->next [L684] FCALL free(item2) - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] FCALL lItem->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND TRUE \read(*data) [L640] EXPR, FCALL data->next [L640] FCALL lItem->next = data->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND TRUE \read(*data) [L640] EXPR, FCALL data->next [L640] FCALL lItem->next = data->next [L641] FCALL data->next = lItem - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND TRUE item && item2 [L660] FCALL item->value - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND TRUE item && item2 [L660] FCALL item->value - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND FALSE !(item && item2) [L669] COND TRUE \read(*item) [L670] FCALL *dst = item - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND FALSE !(item && item2) [L669] COND TRUE \read(*item) [L670] FCALL *dst = item - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND TRUE item && item2 [L660] FCALL item->value [L660] FCALL item2->value - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND TRUE item && item2 [L660] FCALL item->value [L660] FCALL item2->value - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND FALSE !(item && item2) [L669] COND FALSE !(\read(*item)) [L672] COND TRUE \read(*item2) [L673] FCALL *dst = item2 - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND FALSE !(item && item2) [L669] COND FALSE !(\read(*item)) [L672] COND TRUE \read(*item2) [L673] FCALL *dst = item2 - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND FALSE !(item && item2) [L669] COND FALSE !(\read(*item)) [L672] COND FALSE !(\read(*item2)) [L676] dst = ((void *)0) [L677] FCALL data->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND FALSE !(item && item2) [L669] COND FALSE !(\read(*item)) [L672] COND FALSE !(\read(*item2)) [L676] dst = ((void *)0) [L677] FCALL data->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND TRUE item && item2 [L660] EXPR, FCALL item->value [L660] EXPR, FCALL item2->value [L660] COND TRUE item->value < item2->value [L661] FCALL *dst = item - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND TRUE item && item2 [L660] EXPR, FCALL item->value [L660] EXPR, FCALL item2->value [L660] COND TRUE item->value < item2->value [L661] FCALL *dst = item - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND TRUE item && item2 [L660] EXPR, FCALL item->value [L660] EXPR, FCALL item2->value [L660] COND FALSE !(item->value < item2->value) [L664] FCALL *dst = item2 - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND TRUE item && item2 [L660] EXPR, FCALL item->value [L660] EXPR, FCALL item2->value [L660] COND FALSE !(item->value < item2->value) [L664] FCALL *dst = item2 - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND TRUE item && item2 [L660] EXPR, FCALL item->value [L660] EXPR, FCALL item2->value [L660] COND TRUE item->value < item2->value [L661] FCALL *dst = item [L662] FCALL item->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND TRUE item && item2 [L660] EXPR, FCALL item->value [L660] EXPR, FCALL item2->value [L660] COND FALSE !(item->value < item2->value) [L664] FCALL *dst = item2 [L665] FCALL item2->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND FALSE !(item && item2) [L669] COND FALSE !(\read(*item)) [L672] COND FALSE !(\read(*item2)) [L676] dst = ((void *)0) [L677] EXPR, FCALL data->next [L677] data = data->next [L652] FCALL data->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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND TRUE item && item2 [L660] EXPR, FCALL item->value [L660] EXPR, FCALL item2->value [L660] COND TRUE item->value < item2->value [L661] FCALL *dst = item [L662] EXPR, FCALL item->next [L662] item = item->next [L667] FCALL \read(**dst) - 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: [L629] struct TLItem* data = ((void *)0); [L630] struct DItem* item, * item2; [L631] struct TLItem *lItem; [L632] COND TRUE __VERIFIER_nondet_int() [L633] EXPR, FCALL malloc(sizeof *item) [L633] item = malloc(sizeof *item) [L634] COND FALSE !(!item) [L636] FCALL item->next = ((void *)0) [L637] FCALL item->value = __VERIFIER_nondet_int() [L638] EXPR, FCALL malloc(sizeof *lItem) [L638] lItem = malloc(sizeof *lItem) [L639] COND FALSE !(\read(*data)) [L643] FCALL lItem->next = lItem [L644] data = lItem [L646] FCALL lItem->data = item [L647] item = ((void *)0) [L648] lItem = ((void *)0) [L632] COND FALSE !(__VERIFIER_nondet_int()) [L650] COND FALSE !(!data) [L652] EXPR, FCALL data->next [L652] COND TRUE data->next != data [L653] EXPR, FCALL data->data [L653] item = data->data [L654] EXPR, FCALL data->next [L654] EXPR, FCALL data->next->data [L654] item2 = data->next->data [L655] EXPR, FCALL data->next [L655] lItem = data->next [L656] EXPR, FCALL lItem->next [L656] FCALL data->next = lItem->next [L657] FCALL free(lItem) [L658] struct DItem** dst = &data->data; [L659] COND FALSE !(item && item2) [L669] COND FALSE !(\read(*item)) [L672] COND FALSE !(\read(*item2)) [L676] dst = ((void *)0) [L677] EXPR, FCALL data->next [L677] data = data->next [L652] EXPR, FCALL data->next [L652] COND FALSE !(data->next != data) [L679] EXPR, FCALL data->data [L679] item = data->data [L680] FCALL free(data) - 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]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - 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/test-0513_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-26-55-878.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0513_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-26-55-878.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0513_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-26-55-878.csv Received shutdown request...