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_imprecise.epf -i ../../../trunk/examples/svcomp/array-memsafety/add_last_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-47db877 [2018-01-23 16:08:05,528 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-23 16:08:05,529 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-23 16:08:05,541 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-23 16:08:05,541 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-23 16:08:05,542 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-23 16:08:05,543 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-23 16:08:05,545 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-23 16:08:05,547 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-23 16:08:05,548 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-23 16:08:05,549 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-23 16:08:05,549 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-23 16:08:05,549 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-23 16:08:05,551 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-23 16:08:05,552 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-23 16:08:05,554 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-23 16:08:05,556 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-23 16:08:05,559 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-23 16:08:05,560 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-23 16:08:05,561 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-23 16:08:05,563 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-23 16:08:05,569 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-23 16:08:05,569 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-23 16:08:05,569 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_imprecise.epf [2018-01-23 16:08:05,593 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-23 16:08:05,593 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-23 16:08:05,594 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-23 16:08:05,594 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-23 16:08:05,595 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-23 16:08:05,595 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-23 16:08:05,595 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-23 16:08:05,595 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-23 16:08:05,596 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-23 16:08:05,596 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-23 16:08:05,596 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-23 16:08:05,597 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-23 16:08:05,597 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-23 16:08:05,597 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-23 16:08:05,597 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-23 16:08:05,597 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-23 16:08:05,598 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-23 16:08:05,598 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-23 16:08:05,598 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-23 16:08:05,598 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-23 16:08:05,599 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-23 16:08:05,599 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-23 16:08:05,599 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-23 16:08:05,599 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-23 16:08:05,599 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-23 16:08:05,600 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-23 16:08:05,600 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-23 16:08:05,600 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-23 16:08:05,600 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-23 16:08:05,600 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-23 16:08:05,601 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-23 16:08:05,601 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-23 16:08:05,601 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-23 16:08:05,601 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-23 16:08:05,601 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-23 16:08:05,602 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-23 16:08:05,602 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-23 16:08:05,603 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-23 16:08:05,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-23 16:08:05,652 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-23 16:08:05,657 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-23 16:08:05,658 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-23 16:08:05,659 INFO L276 PluginConnector]: CDTParser initialized [2018-01-23 16:08:05,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/add_last_unsafe_false-valid-deref.i [2018-01-23 16:08:05,833 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-23 16:08:05,837 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-23 16:08:05,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-23 16:08:05,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-23 16:08:05,843 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-23 16:08:05,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 04:08:05" (1/1) ... [2018-01-23 16:08:05,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98eaffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:05, skipping insertion in model container [2018-01-23 16:08:05,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 04:08:05" (1/1) ... [2018-01-23 16:08:05,864 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 16:08:05,904 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 16:08:06,018 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 16:08:06,033 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 16:08:06,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:06 WrapperNode [2018-01-23 16:08:06,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-23 16:08:06,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-23 16:08:06,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-23 16:08:06,039 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-23 16:08:06,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:06" (1/1) ... [2018-01-23 16:08:06,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:06" (1/1) ... [2018-01-23 16:08:06,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:06" (1/1) ... [2018-01-23 16:08:06,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:06" (1/1) ... [2018-01-23 16:08:06,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:06" (1/1) ... [2018-01-23 16:08:06,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:06" (1/1) ... [2018-01-23 16:08:06,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:06" (1/1) ... [2018-01-23 16:08:06,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-23 16:08:06,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-23 16:08:06,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-23 16:08:06,075 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-23 16:08:06,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:06" (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 16:08:06,118 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-23 16:08:06,118 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-23 16:08:06,118 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-23 16:08:06,118 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-23 16:08:06,118 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-23 16:08:06,119 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-23 16:08:06,119 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-23 16:08:06,119 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-23 16:08:06,119 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-23 16:08:06,119 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-23 16:08:06,119 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-23 16:08:06,119 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-23 16:08:06,269 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-23 16:08:06,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 04:08:06 BoogieIcfgContainer [2018-01-23 16:08:06,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-23 16:08:06,270 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-23 16:08:06,270 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-23 16:08:06,270 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-23 16:08:06,271 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 04:08:06" (1/1) ... [2018-01-23 16:08:06,321 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-23 16:08:06,947 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-23 16:08:06,959 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:06,963 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:06,963 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:06,969 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:06,969 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:06,969 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:06,972 INFO L268 AbstractInterpreter]: Visited 31 different actions 85 times. Merged at 21 different actions 48 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 27 variables. [2018-01-23 16:08:06,974 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-23 16:08:06,975 INFO L168 Benchmark]: Toolchain (without parser) took 1141.42 ms. Allocated memory was 307.2 MB in the beginning and 330.3 MB in the end (delta: 23.1 MB). Free memory was 265.5 MB in the beginning and 233.9 MB in the end (delta: 31.6 MB). Peak memory consumption was 54.7 MB. Max. memory is 5.3 GB. [2018-01-23 16:08:06,977 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 307.2 MB. Free memory is still 271.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 16:08:06,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.14 ms. Allocated memory is still 307.2 MB. Free memory was 264.5 MB in the beginning and 254.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-23 16:08:06,977 INFO L168 Benchmark]: Boogie Preprocessor took 35.62 ms. Allocated memory is still 307.2 MB. Free memory was 254.6 MB in the beginning and 253.6 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. [2018-01-23 16:08:06,978 INFO L168 Benchmark]: RCFGBuilder took 194.45 ms. Allocated memory is still 307.2 MB. Free memory was 253.6 MB in the beginning and 239.7 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. [2018-01-23 16:08:06,978 INFO L168 Benchmark]: Abstract Interpretation took 704.50 ms. Allocated memory was 307.2 MB in the beginning and 330.3 MB in the end (delta: 23.1 MB). Free memory was 239.7 MB in the beginning and 233.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 5.3 GB. [2018-01-23 16:08:06,980 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 307.2 MB. Free memory is still 271.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 201.14 ms. Allocated memory is still 307.2 MB. Free memory was 264.5 MB in the beginning and 254.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.62 ms. Allocated memory is still 307.2 MB. Free memory was 254.6 MB in the beginning and 253.6 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. * RCFGBuilder took 194.45 ms. Allocated memory is still 307.2 MB. Free memory was 253.6 MB in the beginning and 239.7 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 704.50 ms. Allocated memory was 307.2 MB in the beginning and 330.3 MB in the end (delta: 23.1 MB). Free memory was 239.7 MB in the beginning and 233.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 27 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 229 LocStat_NO_SUPPORTING_DISEQUALITIES : 39 LocStat_NO_DISJUNCTIONS : -54 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 35 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 45 TransStat_NO_SUPPORTING_DISEQUALITIES : 8 TransStat_NO_DISJUNCTIONS : 35 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.762882 RENAME_VARIABLES(MILLISECONDS) : 0.032476 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.456754 PROJECTAWAY(MILLISECONDS) : 2.198824 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001497 DISJOIN(MILLISECONDS) : 0.352879 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.060358 ADD_EQUALITY(MILLISECONDS) : 0.078984 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.020861 #CONJOIN_DISJUNCTIVE : 136 #RENAME_VARIABLES : 267 #UNFREEZE : 0 #CONJOIN : 177 #PROJECTAWAY : 177 #ADD_WEAK_EQUALITY : 6 #DISJOIN : 6 #RENAME_VARIABLES_DISJUNCTIVE : 271 #ADD_EQUALITY : 44 #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: - UnprovableResult [Line: 540]: 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: [L541] int i, j; [L542] int length = __VERIFIER_nondet_int(); [L543] COND TRUE length < 1 [L543] length = 1 [L544] EXPR, FCALL __builtin_alloca (length) [L544] int *arr = __builtin_alloca (length); [L545] COND FALSE !(!arr) [L546] int *a = arr; [L547] EXPR, FCALL \read(*a) [L547] EXPR, FCALL arr + length - 1 [L547] COND FALSE !(*a != *(arr + length - 1)) [L551] return 0; - 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: [L541] int i, j; [L542] int length = __VERIFIER_nondet_int(); [L543] COND TRUE length < 1 [L543] length = 1 [L544] EXPR, FCALL __builtin_alloca (length) [L544] int *arr = __builtin_alloca (length); [L545] COND FALSE !(!arr) [L546] int *a = arr; [L547] EXPR, FCALL \read(*a) [L547] EXPR, FCALL arr + length - 1 [L547] COND FALSE !(*a != *(arr + length - 1)) [L551] return 0; * 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) - 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/add_last_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-23_16-08-06-992.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/add_last_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-23_16-08-06-992.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/add_last_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-23_16-08-06-992.csv Received shutdown request...