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/dll-optional_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:33:56,390 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:33:56,391 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:33:56,406 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:33:56,406 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:33:56,407 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:33:56,409 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:33:56,410 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:33:56,412 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:33:56,413 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:33:56,414 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:33:56,414 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:33:56,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:33:56,416 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:33:56,417 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:33:56,419 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:33:56,421 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:33:56,424 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:33:56,425 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:33:56,426 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:33:56,428 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 16:33:56,429 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 16:33:56,429 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 16:33:56,430 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 16:33:56,431 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 16:33:56,432 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 16:33:56,432 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 16:33:56,433 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 16:33:56,433 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 16:33:56,433 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:33:56,434 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:33:56,434 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 16:33:56,444 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:33:56,444 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:33:56,445 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:33:56,445 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:33:56,445 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:33:56,445 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:33:56,445 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:33:56,445 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:33:56,446 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:33:56,446 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:33:56,446 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:33:56,446 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:33:56,446 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:33:56,446 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:33:56,447 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:33:56,447 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:33:56,447 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:33:56,447 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:33:56,447 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:33:56,447 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:33:56,447 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:33:56,447 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:33:56,448 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:33:56,448 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:33:56,448 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:33:56,448 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:33:56,448 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:33:56,449 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:33:56,449 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:33:56,449 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:33:56,449 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:33:56,449 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:33:56,449 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:33:56,450 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:33:56,450 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:33:56,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:33:56,493 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:33:56,496 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:33:56,498 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:33:56,498 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:33:56,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-optional_true-unreach-call_true-valid-memsafety.i [2018-01-24 16:33:56,661 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:33:56,666 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:33:56,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:33:56,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:33:56,672 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:33:56,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:33:56" (1/1) ... [2018-01-24 16:33:56,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321f72c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:33:56, skipping insertion in model container [2018-01-24 16:33:56,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:33:56" (1/1) ... [2018-01-24 16:33:56,690 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:33:56,732 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:33:56,860 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:33:56,885 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:33:56,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:33:56 WrapperNode [2018-01-24 16:33:56,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:33:56,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:33:56,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:33:56,897 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:33:56,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:33:56" (1/1) ... [2018-01-24 16:33:56,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:33:56" (1/1) ... [2018-01-24 16:33:56,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:33:56" (1/1) ... [2018-01-24 16:33:56,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:33:56" (1/1) ... [2018-01-24 16:33:56,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:33:56" (1/1) ... [2018-01-24 16:33:56,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:33:56" (1/1) ... [2018-01-24 16:33:56,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:33:56" (1/1) ... [2018-01-24 16:33:56,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:33:56,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:33:56,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:33:56,944 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:33:56,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:33:56" (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 16:33:56,998 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:33:56,998 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:33:56,998 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:33:56,998 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:33:56,998 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:33:56,998 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 16:33:56,998 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 16:33:56,998 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:33:56,999 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:33:56,999 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:33:56,999 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 16:33:56,999 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:33:56,999 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:33:56,999 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-24 16:33:56,999 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:33:56,999 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:33:57,000 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:33:57,544 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:33:57,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:33:57 BoogieIcfgContainer [2018-01-24 16:33:57,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:33:57,546 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:33:57,546 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:33:57,546 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:33:57,549 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:33:57" (1/1) ... [2018-01-24 16:33:57,605 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:34:01,313 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:34:01,371 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:34:01,378 INFO L268 AbstractInterpreter]: Visited 170 different actions 719 times. Merged at 104 different actions 389 times. Widened at 4 different actions 6 times. Found 57 fixpoints after 30 different actions. Largest state had 59 variables. [2018-01-24 16:34:01,381 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:34:01,382 INFO L168 Benchmark]: Toolchain (without parser) took 4720.40 ms. Allocated memory was 300.9 MB in the beginning and 681.6 MB in the end (delta: 380.6 MB). Free memory was 261.0 MB in the beginning and 485.0 MB in the end (delta: -224.0 MB). Peak memory consumption was 156.6 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:01,382 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 300.9 MB. Free memory is still 267.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:34:01,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.25 ms. Allocated memory is still 300.9 MB. Free memory was 260.0 MB in the beginning and 247.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:01,383 INFO L168 Benchmark]: Boogie Preprocessor took 47.40 ms. Allocated memory is still 300.9 MB. Free memory was 247.9 MB in the beginning and 246.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:01,383 INFO L168 Benchmark]: RCFGBuilder took 601.08 ms. Allocated memory is still 300.9 MB. Free memory was 246.0 MB in the beginning and 207.2 MB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:01,384 INFO L168 Benchmark]: Abstract Interpretation took 3835.11 ms. Allocated memory was 300.9 MB in the beginning and 681.6 MB in the end (delta: 380.6 MB). Free memory was 207.2 MB in the beginning and 485.0 MB in the end (delta: -277.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:01,385 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 300.9 MB. Free memory is still 267.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 229.25 ms. Allocated memory is still 300.9 MB. Free memory was 260.0 MB in the beginning and 247.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 47.40 ms. Allocated memory is still 300.9 MB. Free memory was 247.9 MB in the beginning and 246.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 601.08 ms. Allocated memory is still 300.9 MB. Free memory was 246.0 MB in the beginning and 207.2 MB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 3835.11 ms. Allocated memory was 300.9 MB in the beginning and 681.6 MB in the end (delta: 380.6 MB). Free memory was 207.2 MB in the beginning and 485.0 MB in the end (delta: -277.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 128 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 1539 LocStat_NO_SUPPORTING_DISEQUALITIES : 392 LocStat_NO_DISJUNCTIONS : -256 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 174 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 279 TransStat_NO_SUPPORTING_DISEQUALITIES : 76 TransStat_NO_DISJUNCTIONS : 217 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 2.727807 RENAME_VARIABLES(MILLISECONDS) : 0.771847 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.850272 PROJECTAWAY(MILLISECONDS) : 0.196992 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001945 DISJOIN(MILLISECONDS) : 0.424381 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.826594 ADD_EQUALITY(MILLISECONDS) : 0.031965 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.009837 #CONJOIN_DISJUNCTIVE : 1068 #RENAME_VARIABLES : 2266 #UNFREEZE : 0 #CONJOIN : 1598 #PROJECTAWAY : 1260 #ADD_WEAK_EQUALITY : 125 #DISJOIN : 221 #RENAME_VARIABLES_DISJUNCTIVE : 2020 #ADD_EQUALITY : 340 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 62 - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND TRUE __VERIFIER_nondet_int() [L989] FCALL head->data = 2 - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND TRUE __VERIFIER_nondet_int() [L989] FCALL head->data = 1 - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND TRUE __VERIFIER_nondet_int() [L989] FCALL head->data = 2 [L989] EXPR, FCALL malloc(sizeof(SLL)) [L989] FCALL head->opt = 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND TRUE __VERIFIER_nondet_int() [L989] FCALL head->data = 2 [L989] EXPR, FCALL malloc(sizeof(SLL)) [L989] FCALL head->opt = 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND TRUE __VERIFIER_nondet_int() [L989] FCALL head->data = 1 [L989] FCALL head->opt = head - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND TRUE __VERIFIER_nondet_int() [L989] FCALL head->data = 2 [L989] EXPR, FCALL malloc(sizeof(SLL)) [L989] FCALL head->opt = malloc(sizeof(SLL)) [L989] FCALL head->opt - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND TRUE __VERIFIER_nondet_int() [L989] FCALL head->data = 2 [L989] EXPR, FCALL malloc(sizeof(SLL)) [L989] FCALL head->opt = malloc(sizeof(SLL)) [L989] EXPR, FCALL head->opt [L989] FCALL head->opt->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] FCALL x->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] FCALL x->data - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] FCALL x->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] x->data == 2 && x->opt != x [L998] FCALL x->opt - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->next = ((void*)0) [L992] COND TRUE __VERIFIER_nondet_int() [L992] FCALL x->data = 2 - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] FCALL x->opt - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR, FCALL x->opt [L998] EXPR x->data == 2 && x->opt != x [L998] x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] FCALL x->opt - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->next = ((void*)0) [L992] COND FALSE !(__VERIFIER_nondet_int()) [L992] COND TRUE __VERIFIER_nondet_int() [L992] FCALL x->data = 1 - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->next = ((void*)0) [L992] COND FALSE !(__VERIFIER_nondet_int()) [L992] COND FALSE !(__VERIFIER_nondet_int()) [L992] FCALL x->data = 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR, FCALL x->opt [L998] EXPR x->data == 2 && x->opt != x [L998] x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] EXPR, FCALL x->opt [L998] FCALL x->opt->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR, FCALL x->opt [L998] EXPR x->data == 2 && x->opt != x [L998] x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] EXPR, FCALL x->opt [L998] FCALL x->opt->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->next = ((void*)0) [L992] COND TRUE __VERIFIER_nondet_int() [L992] FCALL x->data = 2 [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->opt = 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->next = ((void*)0) [L992] COND TRUE __VERIFIER_nondet_int() [L992] FCALL x->data = 2 [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->opt = 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->next = ((void*)0) [L992] COND FALSE !(__VERIFIER_nondet_int()) [L992] COND TRUE __VERIFIER_nondet_int() [L992] FCALL x->data = 1 [L992] FCALL x->opt = x - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->next = ((void*)0) [L992] COND FALSE !(__VERIFIER_nondet_int()) [L992] COND FALSE !(__VERIFIER_nondet_int()) [L992] FCALL x->data = 0 [L992] FCALL x->opt = x - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->next = ((void*)0) [L992] COND TRUE __VERIFIER_nondet_int() [L992] FCALL x->data = 2 [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->opt = malloc(sizeof(SLL)) [L992] FCALL x->opt - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->next = ((void*)0) [L992] COND TRUE __VERIFIER_nondet_int() [L992] FCALL x->data = 2 [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->opt = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->opt [L992] FCALL x->opt->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] EXPR, FCALL x->opt [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] COND FALSE !(!((x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x)) [L998] COND FALSE !(0) [L999] FCALL x->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] EXPR, FCALL x->opt [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] COND FALSE !(!((x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x)) [L998] COND FALSE !(0) [L999] EXPR, FCALL x->next [L999] x = x->next [L996] COND TRUE x != ((void*)0) [L998] FCALL x->data - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] EXPR, FCALL x->opt [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] COND FALSE !(!((x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x)) [L998] COND FALSE !(0) [L999] EXPR, FCALL x->next [L999] x = x->next [L996] COND FALSE !(x != ((void*)0)) [L1002] x = head [L1004] COND TRUE x != ((void*)0) [L1006] head = x [L1007] FCALL x->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] EXPR, FCALL x->opt [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] COND FALSE !(!((x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x)) [L998] COND FALSE !(0) [L999] EXPR, FCALL x->next [L999] x = x->next [L996] COND FALSE !(x != ((void*)0)) [L1002] x = head [L1004] COND TRUE x != ((void*)0) [L1006] head = x [L1007] EXPR, FCALL x->next [L1007] x = x->next [L1008] FCALL head->data - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] EXPR, FCALL x->opt [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] COND FALSE !(!((x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x)) [L998] COND FALSE !(0) [L999] EXPR, FCALL x->next [L999] x = x->next [L996] COND FALSE !(x != ((void*)0)) [L1002] x = head [L1004] COND TRUE x != ((void*)0) [L1006] head = x [L1007] EXPR, FCALL x->next [L1007] x = x->next [L1008] EXPR, FCALL head->data [L1008] COND TRUE head->data == 2 [L1009] FCALL head->opt - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] EXPR, FCALL x->opt [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] COND FALSE !(!((x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x)) [L998] COND FALSE !(0) [L999] EXPR, FCALL x->next [L999] x = x->next [L996] COND FALSE !(x != ((void*)0)) [L1002] x = head [L1004] COND TRUE x != ((void*)0) [L1006] head = x [L1007] EXPR, FCALL x->next [L1007] x = x->next [L1008] EXPR, FCALL head->data [L1008] COND TRUE head->data == 2 [L1009] EXPR, FCALL head->opt [L1009] FCALL free(head->opt) - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] EXPR, FCALL x->opt [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] COND FALSE !(!((x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x)) [L998] COND FALSE !(0) [L999] EXPR, FCALL x->next [L999] x = x->next [L996] COND FALSE !(x != ((void*)0)) [L1002] x = head [L1004] COND TRUE x != ((void*)0) [L1006] head = x [L1007] EXPR, FCALL x->next [L1007] x = x->next [L1008] EXPR, FCALL head->data [L1008] COND TRUE head->data == 2 [L1009] EXPR, FCALL head->opt [L1009] FCALL free(head->opt) - 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] EXPR, FCALL x->opt [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] COND FALSE !(!((x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x)) [L998] COND FALSE !(0) [L999] EXPR, FCALL x->next [L999] x = x->next [L996] COND FALSE !(x != ((void*)0)) [L1002] x = head [L1004] COND TRUE x != ((void*)0) [L1006] head = x [L1007] EXPR, FCALL x->next [L1007] x = x->next [L1008] EXPR, FCALL head->data [L1008] COND TRUE head->data == 2 [L1009] EXPR, FCALL head->opt [L1009] FCALL free(head->opt) [L1010] FCALL free(head) - UnprovableResult [Line: 983]: 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR, FCALL x->data [L998] EXPR x->data == 2 && x->opt != x [L998] EXPR x->data == 2 && x->opt != x && x->opt->next == ((void*)0) [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] EXPR, FCALL x->opt [L998] EXPR (x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x [L998] COND FALSE !(!((x->data == 2 && x->opt != x && x->opt->next == ((void*)0)) || x->opt == x)) [L998] COND FALSE !(0) [L999] EXPR, FCALL x->next [L999] x = x->next [L996] COND FALSE !(x != ((void*)0)) [L1002] x = head [L1004] COND TRUE x != ((void*)0) [L1006] head = x [L1007] EXPR, FCALL x->next [L1007] x = x->next [L1008] EXPR, FCALL head->data [L1008] COND FALSE !(head->data == 2) [L1010] FCALL free(head) [L1004] COND FALSE !(x != ((void*)0)) [L1013] 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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->next = ((void*)0) [L992] COND TRUE __VERIFIER_nondet_int() [L992] FCALL x->data = 2 [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->opt = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->opt [L992] FCALL x->opt->next = ((void*)0) [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND FALSE !(x != ((void*)0)) [L1002] x = head [L1004] COND TRUE x != ((void*)0) [L1006] head = x [L1007] EXPR, FCALL x->next [L1007] x = x->next [L1008] EXPR, FCALL head->data [L1008] COND FALSE !(head->data == 2) [L1010] FCALL free(head) [L1004] COND TRUE x != ((void*)0) [L1006] head = x [L1007] FCALL x->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: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] FCALL head->data = 0 [L989] FCALL head->opt = head [L990] SLL* x = head; [L992] COND TRUE __VERIFIER_nondet_int() [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->next = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->next [L992] FCALL x->next->prev = x [L992] EXPR, FCALL x->next [L992] x = x->next [L992] FCALL x->next = ((void*)0) [L992] COND TRUE __VERIFIER_nondet_int() [L992] FCALL x->data = 2 [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] FCALL x->opt = malloc(sizeof(SLL)) [L992] EXPR, FCALL x->opt [L992] FCALL x->opt->next = ((void*)0) [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND FALSE !(x != ((void*)0)) [L1002] x = head [L1004] COND TRUE x != ((void*)0) [L1006] head = x [L1007] EXPR, FCALL x->next [L1007] x = x->next [L1008] EXPR, FCALL head->data [L1008] COND FALSE !(head->data == 2) [L1010] FCALL free(head) [L1004] COND TRUE x != ((void*)0) [L1006] head = x [L1007] EXPR, FCALL x->next [L1007] x = x->next [L1008] EXPR, FCALL head->data [L1008] COND FALSE !(head->data == 2) [L1010] FCALL free(head) - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-optional_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-34-01-399.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-optional_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-34-01-399.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-optional_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-34-01-399.csv Received shutdown request...