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/mempurity-32bit-Automizer_Camel+AI_EQ_smtcomp.epf -i ../../../trunk/examples/svcomp/list-ext-properties/test-0232_1_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-47db877 [2018-01-23 22:25:27,770 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-23 22:25:27,772 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-23 22:25:27,787 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-23 22:25:27,787 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-23 22:25:27,788 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-23 22:25:27,789 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-23 22:25:27,791 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-23 22:25:27,793 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-23 22:25:27,793 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-23 22:25:27,794 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-23 22:25:27,795 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-23 22:25:27,795 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-23 22:25:27,797 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-23 22:25:27,797 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-23 22:25:27,800 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-23 22:25:27,802 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-23 22:25:27,804 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-23 22:25:27,805 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-23 22:25:27,807 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-23 22:25:27,809 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-23 22:25:27,814 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-23 22:25:27,815 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-23 22:25:27,815 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ_smtcomp.epf [2018-01-23 22:25:27,823 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-23 22:25:27,824 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-23 22:25:27,825 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-23 22:25:27,825 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-23 22:25:27,825 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-23 22:25:27,825 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-23 22:25:27,825 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-23 22:25:27,825 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-23 22:25:27,826 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-23 22:25:27,826 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-23 22:25:27,826 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-23 22:25:27,826 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-23 22:25:27,826 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-23 22:25:27,827 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-23 22:25:27,827 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-23 22:25:27,827 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-23 22:25:27,827 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-23 22:25:27,827 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-23 22:25:27,827 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-23 22:25:27,827 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-23 22:25:27,827 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-23 22:25:27,828 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-23 22:25:27,828 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-23 22:25:27,828 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-23 22:25:27,828 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-23 22:25:27,829 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-23 22:25:27,829 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-23 22:25:27,829 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-23 22:25:27,829 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-23 22:25:27,829 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-23 22:25:27,829 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-23 22:25:27,829 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-23 22:25:27,829 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-23 22:25:27,829 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-23 22:25:27,830 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-23 22:25:27,830 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-23 22:25:27,830 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-23 22:25:27,830 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-23 22:25:27,863 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-23 22:25:27,873 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-23 22:25:27,877 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-23 22:25:27,878 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-23 22:25:27,878 INFO L276 PluginConnector]: CDTParser initialized [2018-01-23 22:25:27,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0232_1_true-valid-memsafety_true-termination.i [2018-01-23 22:25:28,035 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-23 22:25:28,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-23 22:25:28,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-23 22:25:28,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-23 22:25:28,046 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-23 22:25:28,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 10:25:28" (1/1) ... [2018-01-23 22:25:28,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c517b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:25:28, skipping insertion in model container [2018-01-23 22:25:28,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 10:25:28" (1/1) ... [2018-01-23 22:25:28,063 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 22:25:28,100 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 22:25:28,215 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 22:25:28,230 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 22:25:28,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:25:28 WrapperNode [2018-01-23 22:25:28,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-23 22:25:28,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-23 22:25:28,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-23 22:25:28,239 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-23 22:25:28,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:25:28" (1/1) ... [2018-01-23 22:25:28,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:25:28" (1/1) ... [2018-01-23 22:25:28,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:25:28" (1/1) ... [2018-01-23 22:25:28,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:25:28" (1/1) ... [2018-01-23 22:25:28,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:25:28" (1/1) ... [2018-01-23 22:25:28,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:25:28" (1/1) ... [2018-01-23 22:25:28,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:25:28" (1/1) ... [2018-01-23 22:25:28,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-23 22:25:28,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-23 22:25:28,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-23 22:25:28,273 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-23 22:25:28,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:25:28" (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 [2018-01-23 22:25:28,318 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-23 22:25:28,318 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-23 22:25:28,318 INFO L136 BoogieDeclarations]: Found implementation of procedure append [2018-01-23 22:25:28,318 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-23 22:25:28,318 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-23 22:25:28,318 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-23 22:25:28,319 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-23 22:25:28,319 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-23 22:25:28,319 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-23 22:25:28,319 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-23 22:25:28,319 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-23 22:25:28,319 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-23 22:25:28,319 INFO L128 BoogieDeclarations]: Found specification of procedure append [2018-01-23 22:25:28,320 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-23 22:25:28,320 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-23 22:25:28,320 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-23 22:25:28,552 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-23 22:25:28,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 10:25:28 BoogieIcfgContainer [2018-01-23 22:25:28,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-23 22:25:28,553 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-23 22:25:28,553 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-23 22:25:28,553 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-23 22:25:28,554 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 10:25:28" (1/1) ... [2018-01-23 22:25:28,601 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-23 22:25:53,206 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-23 22:25:53,214 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 22:25:53,217 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 22:25:53,217 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 22:25:53,221 INFO L268 AbstractInterpreter]: Visited 28 different actions 28 times. Never merged. Never widened. Never found a fixpoint. Largest state had 42 variables. [2018-01-23 22:25:53,222 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-23 22:25:53,223 INFO L168 Benchmark]: Toolchain (without parser) took 25187.74 ms. Allocated memory was 303.6 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 261.9 MB in the beginning and 228.5 MB in the end (delta: 33.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. [2018-01-23 22:25:53,224 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 303.6 MB. Free memory is still 267.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 22:25:53,224 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.13 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 250.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-23 22:25:53,225 INFO L168 Benchmark]: Boogie Preprocessor took 34.05 ms. Allocated memory is still 303.6 MB. Free memory was 250.7 MB in the beginning and 248.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-23 22:25:53,226 INFO L168 Benchmark]: RCFGBuilder took 279.54 ms. Allocated memory is still 303.6 MB. Free memory was 248.7 MB in the beginning and 226.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 5.3 GB. [2018-01-23 22:25:53,226 INFO L168 Benchmark]: Abstract Interpretation took 24669.38 ms. Allocated memory was 303.6 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 226.9 MB in the beginning and 228.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. [2018-01-23 22:25:53,229 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 303.6 MB. Free memory is still 267.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 198.13 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 250.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.05 ms. Allocated memory is still 303.6 MB. Free memory was 250.7 MB in the beginning and 248.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 279.54 ms. Allocated memory is still 303.6 MB. Free memory was 248.7 MB in the beginning and 226.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 24669.38 ms. Allocated memory was 303.6 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 226.9 MB in the beginning and 228.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 25 LocStat_MAX_WEQGRAPH_SIZE : 43 LocStat_MAX_SIZEOF_WEQEDGELABEL : 6 LocStat_NO_SUPPORTING_EQUALITIES : 538 LocStat_NO_SUPPORTING_DISEQUALITIES : 163 LocStat_NO_DISJUNCTIONS : -50 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 34 TransStat_MAX_WEQGRAPH_SIZE : 12 TransStat_MAX_SIZEOF_WEQEDGELABEL : 4 TransStat_NO_SUPPORTING_EQUALITIES : 70 TransStat_NO_SUPPORTING_DISEQUALITIES : 16 TransStat_NO_DISJUNCTIONS : 34 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1482.666196 RENAME_VARIABLES(MILLISECONDS) : 695.710178 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 1482.605294 PROJECTAWAY(MILLISECONDS) : 0.423385 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.032717 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 695.771884 ADD_EQUALITY(MILLISECONDS) : 0.042708 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.010132 #CONJOIN_DISJUNCTIVE : 49 #RENAME_VARIABLES : 65 #UNFREEZE : 0 #CONJOIN : 95 #PROJECTAWAY : 65 #ADD_WEAK_EQUALITY : 23 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 65 #ADD_EQUALITY : 78 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 7 - UnprovableResult [Line: 1]: 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: [L620] int c = 0; - UnprovableResult [Line: 625]: 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: [L620] int c = 0; [L637] FCALL struct item *list = ((void *)0); [L638] int length = 0; [L640] CALL append(&list) [L627] c++ [L628] EXPR, FCALL malloc(sizeof *item) [L628] struct item *item = malloc(sizeof *item); [L629] EXPR, FCALL \read(**plist) [L629] FCALL item->next = *plist [L630] EXPR, FCALL item->next [L630-L632] COND FALSE, EXPR !((item->next) ? item->next->data : malloc(sizeof *item)) [L632] EXPR, FCALL malloc(sizeof *item) [L630-L632] EXPR (item->next) ? item->next->data : malloc(sizeof *item) [L630-L632] FCALL item->data = (item->next) ? item->next->data : malloc(sizeof *item) [L633] FCALL *plist = item - PositiveResult [Line: 1]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 635]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0232_1_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-23_22-25-53-242.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0232_1_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-23_22-25-53-242.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0232_1_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-23_22-25-53-242.csv Received shutdown request...