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.epf -i ../../../trunk/examples/svcomp/memsafety/960521-1_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 14:07:34,492 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 14:07:34,495 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 14:07:34,512 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 14:07:34,513 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 14:07:34,514 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 14:07:34,514 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 14:07:34,516 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 14:07:34,518 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 14:07:34,519 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 14:07:34,520 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 14:07:34,520 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 14:07:34,521 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 14:07:34,522 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 14:07:34,524 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 14:07:34,527 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 14:07:34,529 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 14:07:34,532 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 14:07:34,533 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 14:07:34,535 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 14:07:34,537 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 14:07:34,543 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 14:07:34,544 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 14:07:34,544 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.epf [2018-01-24 14:07:34,556 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 14:07:34,556 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 14:07:34,557 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 14:07:34,557 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 14:07:34,557 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 14:07:34,558 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 14:07:34,558 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 14:07:34,558 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 14:07:34,559 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 14:07:34,559 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 14:07:34,559 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 14:07:34,559 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 14:07:34,559 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 14:07:34,560 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 14:07:34,560 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 14:07:34,560 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 14:07:34,560 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 14:07:34,561 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 14:07:34,561 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 14:07:34,561 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 14:07:34,561 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 14:07:34,561 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 14:07:34,562 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 14:07:34,562 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 14:07:34,562 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 14:07:34,562 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 14:07:34,563 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 14:07:34,563 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 14:07:34,563 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 14:07:34,563 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 14:07:34,564 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 14:07:34,564 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 14:07:34,565 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 14:07:34,565 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 14:07:34,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 14:07:34,615 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 14:07:34,619 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 14:07:34,620 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 14:07:34,621 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 14:07:34,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/960521-1_false-valid-free.i [2018-01-24 14:07:34,803 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 14:07:34,809 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 14:07:34,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 14:07:34,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 14:07:34,816 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 14:07:34,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 02:07:34" (1/1) ... [2018-01-24 14:07:34,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b3c7ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:07:34, skipping insertion in model container [2018-01-24 14:07:34,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 02:07:34" (1/1) ... [2018-01-24 14:07:34,836 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 14:07:34,874 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 14:07:34,984 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 14:07:34,997 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 14:07:35,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:07:35 WrapperNode [2018-01-24 14:07:35,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 14:07:35,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 14:07:35,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 14:07:35,003 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 14:07:35,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:07:35" (1/1) ... [2018-01-24 14:07:35,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:07:35" (1/1) ... [2018-01-24 14:07:35,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:07:35" (1/1) ... [2018-01-24 14:07:35,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:07:35" (1/1) ... [2018-01-24 14:07:35,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:07:35" (1/1) ... [2018-01-24 14:07:35,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:07:35" (1/1) ... [2018-01-24 14:07:35,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:07:35" (1/1) ... [2018-01-24 14:07:35,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 14:07:35,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 14:07:35,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 14:07:35,037 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 14:07:35,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:07:35" (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 14:07:35,141 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 14:07:35,141 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 14:07:35,141 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-01-24 14:07:35,141 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 14:07:35,141 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 14:07:35,142 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 14:07:35,142 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 14:07:35,142 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 14:07:35,142 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 14:07:35,142 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 14:07:35,142 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 14:07:35,142 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-01-24 14:07:35,142 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 14:07:35,142 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 14:07:35,142 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 14:07:35,372 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 14:07:35,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 02:07:35 BoogieIcfgContainer [2018-01-24 14:07:35,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 14:07:35,373 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 14:07:35,374 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 14:07:35,374 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 14:07:35,375 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 02:07:35" (1/1) ... [2018-01-24 14:07:35,424 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 14:07:45,083 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 14:07:45,103 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 14:07:45,106 INFO L268 AbstractInterpreter]: Visited 57 different actions 181 times. Merged at 30 different actions 92 times. Never widened. Found 7 fixpoints after 4 different actions. Largest state had 28 variables. [2018-01-24 14:07:45,108 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 14:07:45,109 INFO L168 Benchmark]: Toolchain (without parser) took 10305.58 ms. Allocated memory was 305.7 MB in the beginning and 965.7 MB in the end (delta: 660.1 MB). Free memory was 265.6 MB in the beginning and 201.9 MB in the end (delta: 63.7 MB). Peak memory consumption was 723.8 MB. Max. memory is 5.3 GB. [2018-01-24 14:07:45,110 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 305.7 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 14:07:45,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.67 ms. Allocated memory is still 305.7 MB. Free memory was 264.6 MB in the beginning and 254.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-24 14:07:45,110 INFO L168 Benchmark]: Boogie Preprocessor took 33.75 ms. Allocated memory is still 305.7 MB. Free memory was 254.5 MB in the beginning and 252.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 14:07:45,110 INFO L168 Benchmark]: RCFGBuilder took 336.31 ms. Allocated memory is still 305.7 MB. Free memory was 252.5 MB in the beginning and 234.5 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. [2018-01-24 14:07:45,110 INFO L168 Benchmark]: Abstract Interpretation took 9734.51 ms. Allocated memory was 305.7 MB in the beginning and 965.7 MB in the end (delta: 660.1 MB). Free memory was 234.5 MB in the beginning and 201.9 MB in the end (delta: 32.6 MB). Peak memory consumption was 692.7 MB. Max. memory is 5.3 GB. [2018-01-24 14:07:45,111 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 305.7 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 192.67 ms. Allocated memory is still 305.7 MB. Free memory was 264.6 MB in the beginning and 254.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.75 ms. Allocated memory is still 305.7 MB. Free memory was 254.5 MB in the beginning and 252.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 336.31 ms. Allocated memory is still 305.7 MB. Free memory was 252.5 MB in the beginning and 234.5 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 9734.51 ms. Allocated memory was 305.7 MB in the beginning and 965.7 MB in the end (delta: 660.1 MB). Free memory was 234.5 MB in the beginning and 201.9 MB in the end (delta: 32.6 MB). Peak memory consumption was 692.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 42 LocStat_MAX_WEQGRAPH_SIZE : 8 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 660 LocStat_NO_SUPPORTING_DISEQUALITIES : 117 LocStat_NO_DISJUNCTIONS : -84 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 63 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 139 TransStat_NO_SUPPORTING_DISEQUALITIES : 30 TransStat_NO_DISJUNCTIONS : 77 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.025155 RENAME_VARIABLES(MILLISECONDS) : 0.179784 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.002509 PROJECTAWAY(MILLISECONDS) : 0.135814 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.083910 DISJOIN(MILLISECONDS) : 0.624053 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.196610 ADD_EQUALITY(MILLISECONDS) : 0.033967 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.006346 #CONJOIN_DISJUNCTIVE : 292 #RENAME_VARIABLES : 664 #UNFREEZE : 0 #CONJOIN : 577 #PROJECTAWAY : 400 #ADD_WEAK_EQUALITY : 15 #DISJOIN : 53 #RENAME_VARIABLES_DISJUNCTIVE : 614 #ADD_EQUALITY : 110 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 24 - 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: [L619] int *a, *b; [L620] int n; [L631] n = 128 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 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: [L619] int *a, *b; [L620] int n; [L631] n = 128 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 [L635] CALL foo () [L623] int i; [L624] i = 0 [L624] COND TRUE i < n [L625] FCALL a[i] = -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: [L619] int *a, *b; [L620] int n; [L631] n = 128 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 [L635] CALL foo () [L623] int i; [L624] i = 0 [L624] COND FALSE !(i < n) [L626] i = 0 [L626] COND TRUE i < 128 - 1 [L627] FCALL b[i] = -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: [L619] int *a, *b; [L620] int n; [L631] n = 128 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 [L635] CALL foo () [L623] int i; [L624] i = 0 [L624] COND FALSE !(i < n) [L626] i = 0 [L626] COND FALSE, RET !(i < 128 - 1) [L635] foo () [L636] FCALL b[-1] - 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: [L619] int *a, *b; [L620] int n; [L631] n = 128 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 [L635] CALL foo () [L623] int i; [L624] i = 0 [L624] COND FALSE !(i < n) [L626] i = 0 [L626] COND FALSE, RET !(i < 128 - 1) [L635] foo () [L636] FCALL b[-1] [L636] COND FALSE !(b[-1]) [L639] FCALL free(a) [L639] FCALL free(b) - 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: [L619] int *a, *b; [L620] int n; [L631] n = 128 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 [L635] CALL foo () [L623] int i; [L624] i = 0 [L624] COND FALSE !(i < n) [L626] i = 0 [L626] COND FALSE, RET !(i < 128 - 1) [L635] foo () [L636] FCALL b[-1] [L636] COND TRUE b[-1] [L637] FCALL free(a) [L637] FCALL free(b) - UnprovableResult [Line: 629]: 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: [L619] int *a, *b; [L620] int n; [L631] n = 128 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 [L635] CALL foo () [L623] int i; [L624] i = 0 [L624] COND FALSE !(i < n) [L626] i = 0 [L626] COND FALSE, RET !(i < 128 - 1) [L635] foo () [L636] FCALL b[-1] [L636] COND FALSE !(b[-1]) [L639] FCALL free(a) [L639] FCALL free(b) [L640] return 0; - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - 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/960521-1_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_14-07-45-120.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_14-07-45-120.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_14-07-45-120.csv Received shutdown request...