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/forester-heap/sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:34:36,116 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:34:36,132 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:34:36,146 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:34:36,146 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:34:36,147 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:34:36,148 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:34:36,150 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:34:36,152 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:34:36,153 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:34:36,154 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:34:36,154 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:34:36,155 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:34:36,156 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:34:36,157 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:34:36,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:34:36,162 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:34:36,164 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:34:36,165 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:34:36,166 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:34:36,169 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:34:36,174 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:34:36,174 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:34:36,175 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 16:34:36,185 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:34:36,185 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:34:36,186 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:34:36,186 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:34:36,187 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:34:36,187 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:34:36,187 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:34:36,187 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:34:36,188 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:34:36,188 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:34:36,188 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:34:36,188 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:34:36,189 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:34:36,189 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:34:36,189 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:34:36,189 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:34:36,189 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:34:36,190 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:34:36,190 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:34:36,190 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:34:36,190 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:34:36,190 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:34:36,191 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:34:36,191 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:34:36,191 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:34:36,191 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:34:36,191 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:34:36,192 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:34:36,192 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:34:36,192 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:34:36,192 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:34:36,192 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:34:36,192 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:34:36,193 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:34:36,194 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:34:36,231 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:34:36,244 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:34:36,249 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:34:36,250 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:34:36,251 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:34:36,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i [2018-01-24 16:34:36,428 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:34:36,434 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:34:36,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:34:36,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:34:36,440 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:34:36,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:34:36" (1/1) ... [2018-01-24 16:34:36,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e82129b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:36, skipping insertion in model container [2018-01-24 16:34:36,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:34:36" (1/1) ... [2018-01-24 16:34:36,458 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:34:36,500 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:34:36,626 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:34:36,653 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:34:36,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:36 WrapperNode [2018-01-24 16:34:36,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:34:36,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:34:36,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:34:36,664 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:34:36,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:36" (1/1) ... [2018-01-24 16:34:36,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:36" (1/1) ... [2018-01-24 16:34:36,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:36" (1/1) ... [2018-01-24 16:34:36,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:36" (1/1) ... [2018-01-24 16:34:36,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:36" (1/1) ... [2018-01-24 16:34:36,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:36" (1/1) ... [2018-01-24 16:34:36,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:36" (1/1) ... [2018-01-24 16:34:36,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:34:36,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:34:36,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:34:36,707 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:34:36,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:36" (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 16:34:36,765 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:34:36,765 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:34:36,765 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:34:36,765 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:34:36,765 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:34:36,766 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 16:34:36,766 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 16:34:36,766 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:34:36,766 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:34:36,766 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:34:36,766 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 16:34:36,767 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:34:36,767 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:34:36,767 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-24 16:34:36,767 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:34:36,767 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:34:36,767 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:34:37,266 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:34:37,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:34:37 BoogieIcfgContainer [2018-01-24 16:34:37,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:34:37,267 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:34:37,268 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:34:37,268 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:34:37,269 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:34:37" (1/1) ... [2018-01-24 16:34:37,329 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:34:39,638 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:34:39,665 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:34:39,674 INFO L268 AbstractInterpreter]: Visited 137 different actions 513 times. Merged at 94 different actions 251 times. Widened at 2 different actions 2 times. Found 28 fixpoints after 18 different actions. Largest state had 47 variables. [2018-01-24 16:34:39,676 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:34:39,677 INFO L168 Benchmark]: Toolchain (without parser) took 3248.64 ms. Allocated memory was 298.8 MB in the beginning and 492.3 MB in the end (delta: 193.5 MB). Free memory was 258.7 MB in the beginning and 177.3 MB in the end (delta: 81.5 MB). Peak memory consumption was 274.9 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:39,678 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 298.8 MB. Free memory is still 264.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:34:39,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.20 ms. Allocated memory is still 298.8 MB. Free memory was 257.7 MB in the beginning and 245.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:39,678 INFO L168 Benchmark]: Boogie Preprocessor took 42.35 ms. Allocated memory is still 298.8 MB. Free memory was 245.6 MB in the beginning and 243.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:39,679 INFO L168 Benchmark]: RCFGBuilder took 560.42 ms. Allocated memory is still 298.8 MB. Free memory was 243.6 MB in the beginning and 212.7 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:39,679 INFO L168 Benchmark]: Abstract Interpretation took 2408.82 ms. Allocated memory was 298.8 MB in the beginning and 492.3 MB in the end (delta: 193.5 MB). Free memory was 212.7 MB in the beginning and 177.3 MB in the end (delta: 35.4 MB). Peak memory consumption was 228.8 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:39,681 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 298.8 MB. Free memory is still 264.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 228.20 ms. Allocated memory is still 298.8 MB. Free memory was 257.7 MB in the beginning and 245.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 42.35 ms. Allocated memory is still 298.8 MB. Free memory was 245.6 MB in the beginning and 243.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 560.42 ms. Allocated memory is still 298.8 MB. Free memory was 243.6 MB in the beginning and 212.7 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 2408.82 ms. Allocated memory was 298.8 MB in the beginning and 492.3 MB in the end (delta: 193.5 MB). Free memory was 212.7 MB in the beginning and 177.3 MB in the end (delta: 35.4 MB). Peak memory consumption was 228.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 100 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 1035 LocStat_NO_SUPPORTING_DISEQUALITIES : 311 LocStat_NO_DISJUNCTIONS : -200 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 141 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 200 TransStat_NO_SUPPORTING_DISEQUALITIES : 60 TransStat_NO_DISJUNCTIONS : 159 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1.110856 RENAME_VARIABLES(MILLISECONDS) : 0.022537 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.692886 PROJECTAWAY(MILLISECONDS) : 1.800028 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001789 DISJOIN(MILLISECONDS) : 0.861994 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.042845 ADD_EQUALITY(MILLISECONDS) : 0.022525 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.006628 #CONJOIN_DISJUNCTIVE : 761 #RENAME_VARIABLES : 1517 #UNFREEZE : 0 #CONJOIN : 1038 #PROJECTAWAY : 825 #ADD_WEAK_EQUALITY : 64 #DISJOIN : 131 #RENAME_VARIABLES_DISJUNCTIVE : 1443 #ADD_EQUALITY : 216 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 48 - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] FCALL end->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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] FCALL end->colour - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND TRUE __VERIFIER_nondet_int() [L1011] FCALL end->colour = BLACK - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1015] FCALL end->colour = RED - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1015] FCALL end->colour = RED [L1016] EXPR, FCALL malloc(sizeof(SLL)) [L1016] FCALL end->next = malloc(sizeof(SLL)) - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1015] FCALL end->colour = RED [L1016] EXPR, FCALL malloc(sizeof(SLL)) [L1016] FCALL end->next = malloc(sizeof(SLL)) - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND TRUE ((void*)0) != end [L1032] FCALL end->colour - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1015] FCALL end->colour = RED [L1016] EXPR, FCALL malloc(sizeof(SLL)) [L1016] FCALL end->next = malloc(sizeof(SLL)) [L1017] FCALL end->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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND TRUE ((void*)0) != end [L1032] EXPR, FCALL end->colour [L1032] COND TRUE RED == end->colour [L1034] FCALL end->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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND TRUE ((void*)0) != end [L1032] EXPR, FCALL end->colour [L1032] COND FALSE !(RED == end->colour) [L1039] FCALL end->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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1015] FCALL end->colour = RED [L1016] EXPR, FCALL malloc(sizeof(SLL)) [L1016] FCALL end->next = malloc(sizeof(SLL)) [L1017] EXPR, FCALL end->next [L1017] end = end->next [L1018] FCALL end->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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1015] FCALL end->colour = RED [L1016] EXPR, FCALL malloc(sizeof(SLL)) [L1016] FCALL end->next = malloc(sizeof(SLL)) [L1017] EXPR, FCALL end->next [L1017] end = end->next [L1018] FCALL end->next = ((void*)0) [L1019] FCALL end->colour = BLACK - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND TRUE ((void*)0) != end [L1032] EXPR, FCALL end->colour [L1032] COND FALSE !(RED == end->colour) [L1039] EXPR, FCALL end->next [L1039] end = end->next [L1030] COND TRUE ((void*)0) != end [L1032] FCALL end->colour - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND TRUE ((void*)0) != end [L1032] EXPR, FCALL end->colour [L1032] COND TRUE RED == end->colour [L1034] EXPR, FCALL end->next [L1034] end = end->next [L1035] COND FALSE !(!(((void*)0) != end)) [L1035] COND FALSE !(0) [L1036] FCALL end->colour - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND TRUE ((void*)0) != end [L1032] EXPR, FCALL end->colour [L1032] COND TRUE RED == end->colour [L1034] EXPR, FCALL end->next [L1034] end = end->next [L1035] COND FALSE !(!(((void*)0) != end)) [L1035] COND FALSE !(0) [L1036] FCALL end->colour - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND TRUE ((void*)0) != end [L1032] EXPR, FCALL end->colour [L1032] COND FALSE !(RED == end->colour) [L1039] EXPR, FCALL end->next [L1039] end = end->next [L1030] COND FALSE !(((void*)0) != end) [L1043] COND TRUE ((void*)0) != list [L1045] FCALL list->colour - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND TRUE ((void*)0) != end [L1032] EXPR, FCALL end->colour [L1032] COND FALSE !(RED == end->colour) [L1039] EXPR, FCALL end->next [L1039] end = end->next [L1030] COND FALSE !(((void*)0) != end) [L1043] COND TRUE ((void*)0) != list [L1045] EXPR, FCALL list->colour [L1045] COND FALSE !(RED == list->colour) [L1054] 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1015] FCALL end->colour = RED [L1016] EXPR, FCALL malloc(sizeof(SLL)) [L1016] FCALL end->next = malloc(sizeof(SLL)) [L1017] EXPR, FCALL end->next [L1017] end = end->next [L1018] FCALL end->next = ((void*)0) [L1019] FCALL end->colour = BLACK [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] FCALL end->colour - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND TRUE __VERIFIER_nondet_int() [L1011] FCALL end->colour = BLACK [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND FALSE !(((void*)0) != end) [L1043] COND TRUE ((void*)0) != list [L1045] EXPR, FCALL list->colour [L1045] COND TRUE RED == list->colour [L1047] FCALL list->next - UnprovableResult [Line: 992]: 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND TRUE ((void*)0) != end [L1032] EXPR, FCALL end->colour [L1032] COND FALSE !(RED == end->colour) [L1039] EXPR, FCALL end->next [L1039] end = end->next [L1030] COND FALSE !(((void*)0) != end) [L1043] COND TRUE ((void*)0) != list [L1045] EXPR, FCALL list->colour [L1045] COND FALSE !(RED == list->colour) [L1054] EXPR, FCALL list->next [L1054] end = list->next [L1055] FCALL free(list) [L1056] list = end [L1043] COND FALSE !(((void*)0) != list) [L1060] 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND TRUE __VERIFIER_nondet_int() [L1011] FCALL end->colour = BLACK [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND FALSE !(((void*)0) != end) [L1043] COND TRUE ((void*)0) != list [L1045] EXPR, FCALL list->colour [L1045] COND TRUE RED == list->colour [L1047] EXPR, FCALL list->next [L1047] end = list->next [L1048] FCALL free(list) [L1049] FCALL end->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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND TRUE __VERIFIER_nondet_int() [L1011] FCALL end->colour = BLACK [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND FALSE !(((void*)0) != end) [L1043] COND TRUE ((void*)0) != list [L1045] EXPR, FCALL list->colour [L1045] COND TRUE RED == list->colour [L1047] EXPR, FCALL list->next [L1047] end = list->next [L1048] FCALL free(list) [L1049] FCALL end->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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND TRUE __VERIFIER_nondet_int() [L1011] FCALL end->colour = BLACK [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND FALSE !(((void*)0) != end) [L1043] COND TRUE ((void*)0) != list [L1045] EXPR, FCALL list->colour [L1045] COND TRUE RED == list->colour [L1047] EXPR, FCALL list->next [L1047] end = list->next [L1048] FCALL free(list) [L1049] EXPR, FCALL end->next [L1049] list = end->next [L1050] FCALL free(end) - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND TRUE __VERIFIER_nondet_int() [L1011] FCALL end->colour = BLACK [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND FALSE !(((void*)0) != end) [L1043] COND TRUE ((void*)0) != list [L1045] EXPR, FCALL list->colour [L1045] COND FALSE !(RED == list->colour) [L1054] EXPR, FCALL list->next [L1054] end = list->next [L1055] FCALL free(list) [L1056] list = end [L1043] COND TRUE ((void*)0) != list [L1045] FCALL list->colour - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND TRUE __VERIFIER_nondet_int() [L1011] FCALL end->colour = BLACK [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND FALSE !(((void*)0) != end) [L1043] COND TRUE ((void*)0) != list [L1045] EXPR, FCALL list->colour [L1045] COND FALSE !(RED == list->colour) [L1054] EXPR, FCALL list->next [L1054] end = list->next [L1055] FCALL free(list) [L1056] list = end [L1043] COND TRUE ((void*)0) != list [L1045] EXPR, FCALL list->colour [L1045] COND TRUE RED == list->colour [L1047] EXPR, FCALL list->next [L1047] end = list->next [L1048] FCALL free(list) - 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: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND TRUE __VERIFIER_nondet_int() [L1005] EXPR, FCALL malloc(sizeof(SLL)) [L1005] FCALL end->next = malloc(sizeof(SLL)) [L1006] EXPR, FCALL end->next [L1006] end = end->next [L1007] FCALL end->next = ((void*)0) [L1009] COND TRUE __VERIFIER_nondet_int() [L1011] FCALL end->colour = BLACK [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND FALSE !(((void*)0) != end) [L1043] COND TRUE ((void*)0) != list [L1045] EXPR, FCALL list->colour [L1045] COND FALSE !(RED == list->colour) [L1054] EXPR, FCALL list->next [L1054] end = list->next [L1055] FCALL free(list) [L1056] list = end [L1043] COND TRUE ((void*)0) != list [L1045] EXPR, FCALL list->colour [L1045] COND FALSE !(RED == list->colour) [L1054] EXPR, FCALL list->next [L1054] end = list->next [L1055] FCALL free(list) - 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]: 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]: 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 * 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/sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-34-39-695.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-34-39-695.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-34-39-695.csv Received shutdown request...