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_false-unreach-call_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:34:59,249 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:34:59,250 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:34:59,266 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:34:59,266 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:34:59,267 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:34:59,268 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:34:59,270 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:34:59,272 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:34:59,273 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:34:59,274 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:34:59,274 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:34:59,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:34:59,276 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:34:59,278 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:34:59,281 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:34:59,283 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:34:59,285 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:34:59,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:34:59,288 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:34:59,290 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 16:34:59,290 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 16:34:59,291 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 16:34:59,292 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 16:34:59,293 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 16:34:59,294 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 16:34:59,294 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 16:34:59,295 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 16:34:59,295 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 16:34:59,295 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:34:59,296 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:34:59,296 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 16:34:59,304 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:34:59,304 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:34:59,305 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:34:59,305 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:34:59,305 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:34:59,306 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:34:59,306 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:34:59,306 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:34:59,306 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:34:59,306 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:34:59,306 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:34:59,307 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:34:59,307 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:34:59,307 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:34:59,307 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:34:59,307 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:34:59,307 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:34:59,307 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:34:59,307 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:34:59,308 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:34:59,308 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:34:59,308 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:34:59,308 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:34:59,308 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:34:59,309 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:34:59,309 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:34:59,309 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:34:59,309 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:34:59,309 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:34:59,310 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:34:59,310 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:34:59,310 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:34:59,310 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:34:59,310 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:34:59,311 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:34:59,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:34:59,355 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:34:59,358 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:34:59,359 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:34:59,360 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:34:59,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1_false-unreach-call_false-valid-deref.i [2018-01-24 16:34:59,523 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:34:59,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:34:59,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:34:59,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:34:59,533 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:34:59,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:34:59" (1/1) ... [2018-01-24 16:34:59,537 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 04:34:59, skipping insertion in model container [2018-01-24 16:34:59,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:34:59" (1/1) ... [2018-01-24 16:34:59,551 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:34:59,591 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:34:59,716 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:34:59,738 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:34:59,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:59 WrapperNode [2018-01-24 16:34:59,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:34:59,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:34:59,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:34:59,745 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:34:59,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:59" (1/1) ... [2018-01-24 16:34:59,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:59" (1/1) ... [2018-01-24 16:34:59,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:59" (1/1) ... [2018-01-24 16:34:59,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:59" (1/1) ... [2018-01-24 16:34:59,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:59" (1/1) ... [2018-01-24 16:34:59,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:59" (1/1) ... [2018-01-24 16:34:59,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:59" (1/1) ... [2018-01-24 16:34:59,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:34:59,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:34:59,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:34:59,783 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:34:59,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:59" (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 16:34:59,837 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:34:59,837 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:34:59,837 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:34:59,837 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 16:34:59,837 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 16:34:59,837 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:34:59,837 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:34:59,838 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:34:59,838 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:34:59,838 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:34:59,838 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 16:34:59,838 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:34:59,838 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:34:59,838 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-24 16:34:59,838 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:34:59,839 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:34:59,839 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:35:00,293 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:35:00,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:35:00 BoogieIcfgContainer [2018-01-24 16:35:00,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:35:00,295 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:35:00,295 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:35:00,296 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:35:00,297 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:35:00" (1/1) ... [2018-01-24 16:35:00,355 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:35:02,821 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:35:02,859 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:35:02,866 INFO L268 AbstractInterpreter]: Visited 135 different actions 525 times. Merged at 95 different actions 266 times. Never widened. Found 40 fixpoints after 27 different actions. Largest state had 50 variables. [2018-01-24 16:35:02,869 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:35:02,870 INFO L168 Benchmark]: Toolchain (without parser) took 3345.91 ms. Allocated memory was 304.6 MB in the beginning and 494.4 MB in the end (delta: 189.8 MB). Free memory was 264.5 MB in the beginning and 248.9 MB in the end (delta: 15.6 MB). Peak memory consumption was 205.4 MB. Max. memory is 5.3 GB. [2018-01-24 16:35:02,870 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 304.6 MB. Free memory is still 270.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:35:02,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.93 ms. Allocated memory is still 304.6 MB. Free memory was 263.5 MB in the beginning and 251.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:35:02,871 INFO L168 Benchmark]: Boogie Preprocessor took 37.53 ms. Allocated memory is still 304.6 MB. Free memory was 251.4 MB in the beginning and 249.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:35:02,871 INFO L168 Benchmark]: RCFGBuilder took 511.56 ms. Allocated memory is still 304.6 MB. Free memory was 249.4 MB in the beginning and 218.4 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:35:02,871 INFO L168 Benchmark]: Abstract Interpretation took 2573.67 ms. Allocated memory was 304.6 MB in the beginning and 494.4 MB in the end (delta: 189.8 MB). Free memory was 217.4 MB in the beginning and 248.9 MB in the end (delta: -31.5 MB). Peak memory consumption was 158.3 MB. Max. memory is 5.3 GB. [2018-01-24 16:35:02,872 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 304.6 MB. Free memory is still 270.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 216.93 ms. Allocated memory is still 304.6 MB. Free memory was 263.5 MB in the beginning and 251.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.53 ms. Allocated memory is still 304.6 MB. Free memory was 251.4 MB in the beginning and 249.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 511.56 ms. Allocated memory is still 304.6 MB. Free memory was 249.4 MB in the beginning and 218.4 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 2573.67 ms. Allocated memory was 304.6 MB in the beginning and 494.4 MB in the end (delta: 189.8 MB). Free memory was 217.4 MB in the beginning and 248.9 MB in the end (delta: -31.5 MB). Peak memory consumption was 158.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 101 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 1053 LocStat_NO_SUPPORTING_DISEQUALITIES : 316 LocStat_NO_DISJUNCTIONS : -202 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 139 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 207 TransStat_NO_SUPPORTING_DISEQUALITIES : 61 TransStat_NO_DISJUNCTIONS : 161 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.512493 RENAME_VARIABLES(MILLISECONDS) : 0.578028 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.491854 PROJECTAWAY(MILLISECONDS) : 0.782442 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001478 DISJOIN(MILLISECONDS) : 0.881466 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.606120 ADD_EQUALITY(MILLISECONDS) : 0.016590 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.006378 #CONJOIN_DISJUNCTIVE : 807 #RENAME_VARIABLES : 1643 #UNFREEZE : 0 #CONJOIN : 1125 #PROJECTAWAY : 909 #ADD_WEAK_EQUALITY : 64 #DISJOIN : 157 #RENAME_VARIABLES_DISJUNCTIVE : 1528 #ADD_EQUALITY : 223 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 49 - 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 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 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) [L1038] 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) [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 TRUE RED == end->colour [L1034] EXPR, FCALL end->next [L1034] end = end->next [L1035] 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] EXPR, FCALL end->next [L1034] end = end->next [L1035] 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) [L1038] EXPR, FCALL end->next [L1038] COND FALSE !(!(end->next)) [L1038] COND FALSE !(0) [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 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] EXPR, FCALL end->next [L1035] end = end->next [L1038] 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) [L1038] EXPR, FCALL end->next [L1038] COND FALSE !(!(end->next)) [L1038] COND FALSE !(0) [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 FALSE !(RED == end->colour) [L1038] EXPR, FCALL end->next [L1038] COND FALSE !(!(end->next)) [L1038] COND FALSE !(0) [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 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 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) [L1038] EXPR, FCALL end->next [L1038] COND FALSE !(!(end->next)) [L1038] COND FALSE !(0) [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 TRUE RED == list->colour [L1047] 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 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) [L1038] EXPR, FCALL end->next [L1038] COND FALSE !(!(end->next)) [L1038] COND FALSE !(0) [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 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) [L1038] EXPR, FCALL end->next [L1038] COND FALSE !(!(end->next)) [L1038] COND FALSE !(0) [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 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 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) [L1038] EXPR, FCALL end->next [L1038] COND FALSE !(!(end->next)) [L1038] COND FALSE !(0) [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 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 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) [L1038] EXPR, FCALL end->next [L1038] COND FALSE !(!(end->next)) [L1038] COND FALSE !(0) [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 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 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) [L1038] EXPR, FCALL end->next [L1038] COND FALSE !(!(end->next)) [L1038] COND FALSE !(0) [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 TRUE ((void*)0) != list [L1045] FCALL list->colour - 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) [L1038] EXPR, FCALL end->next [L1038] COND FALSE !(!(end->next)) [L1038] COND FALSE !(0) [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 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 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) [L1038] EXPR, FCALL end->next [L1038] COND FALSE !(!(end->next)) [L1038] COND FALSE !(0) [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 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 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) [L1038] EXPR, FCALL end->next [L1038] COND FALSE !(!(end->next)) [L1038] COND FALSE !(0) [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 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]: 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]: 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]: 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_false-unreach-call_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-35-02-882.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-rb-cnstr_1_false-unreach-call_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-35-02-882.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-rb-cnstr_1_false-unreach-call_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-35-02-882.csv Received shutdown request...