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/ldv-memsafety/ArraysOfVariableLength2_true-valid-memsafety.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:29:24,477 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:29:24,479 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:29:24,494 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:29:24,494 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:29:24,495 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:29:24,496 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:29:24,498 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:29:24,500 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:29:24,501 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:29:24,502 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:29:24,502 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:29:24,503 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:29:24,504 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:29:24,505 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:29:24,508 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:29:24,510 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:29:24,512 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:29:24,513 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:29:24,515 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:29:24,517 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:29:24,522 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:29:24,523 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:29:24,523 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 16:29:24,531 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:29:24,532 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:29:24,533 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:29:24,533 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:29:24,533 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:29:24,533 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:29:24,533 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:29:24,533 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:29:24,534 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:29:24,534 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:29:24,534 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:29:24,534 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:29:24,534 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:29:24,534 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:29:24,535 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:29:24,535 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:29:24,535 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:29:24,535 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:29:24,535 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:29:24,535 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:29:24,535 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:29:24,536 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:29:24,536 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:29:24,536 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:29:24,536 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:29:24,536 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:29:24,537 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:29:24,537 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:29:24,537 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:29:24,537 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:29:24,537 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:29:24,537 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:29:24,537 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:29:24,538 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:29:24,538 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:29:24,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:29:24,583 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:29:24,586 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:29:24,587 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:29:24,588 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:29:24,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_true-valid-memsafety.c [2018-01-24 16:29:24,703 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:29:24,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:29:24,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:29:24,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:29:24,715 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:29:24,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:29:24" (1/1) ... [2018-01-24 16:29:24,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc92de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:24, skipping insertion in model container [2018-01-24 16:29:24,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:29:24" (1/1) ... [2018-01-24 16:29:24,734 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:29:24,749 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:29:24,864 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:29:24,882 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:29:24,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:24 WrapperNode [2018-01-24 16:29:24,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:29:24,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:29:24,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:29:24,890 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:29:24,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:24" (1/1) ... [2018-01-24 16:29:24,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:24" (1/1) ... [2018-01-24 16:29:24,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:24" (1/1) ... [2018-01-24 16:29:24,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:24" (1/1) ... [2018-01-24 16:29:24,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:24" (1/1) ... [2018-01-24 16:29:24,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:24" (1/1) ... [2018-01-24 16:29:24,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:24" (1/1) ... [2018-01-24 16:29:24,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:29:24,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:29:24,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:29:24,923 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:29:24,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:24" (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 16:29:24,971 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:29:24,971 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:29:24,971 INFO L136 BoogieDeclarations]: Found implementation of procedure bar [2018-01-24 16:29:24,971 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-01-24 16:29:24,972 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:29:24,972 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:29:24,972 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:29:24,972 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:29:24,972 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:29:24,972 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:29:24,972 INFO L128 BoogieDeclarations]: Found specification of procedure bar [2018-01-24 16:29:24,972 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-01-24 16:29:24,972 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:29:24,972 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:29:24,973 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:29:25,216 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:29:25,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:29:25 BoogieIcfgContainer [2018-01-24 16:29:25,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:29:25,218 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:29:25,218 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:29:25,218 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:29:25,219 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:29:25" (1/1) ... [2018-01-24 16:29:25,262 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:29:26,249 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:29:26,265 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:29:26,275 INFO L268 AbstractInterpreter]: Visited 77 different actions 302 times. Merged at 54 different actions 132 times. Never widened. Found 23 fixpoints after 9 different actions. Largest state had 25 variables. [2018-01-24 16:29:26,277 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:29:26,278 INFO L168 Benchmark]: Toolchain (without parser) took 1574.12 ms. Allocated memory was 308.3 MB in the beginning and 363.3 MB in the end (delta: 55.1 MB). Free memory was 269.2 MB in the beginning and 299.7 MB in the end (delta: -30.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 5.3 GB. [2018-01-24 16:29:26,279 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 308.3 MB. Free memory is still 274.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:29:26,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.40 ms. Allocated memory is still 308.3 MB. Free memory was 269.2 MB in the beginning and 260.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:29:26,279 INFO L168 Benchmark]: Boogie Preprocessor took 31.97 ms. Allocated memory is still 308.3 MB. Free memory was 260.1 MB in the beginning and 258.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:29:26,280 INFO L168 Benchmark]: RCFGBuilder took 295.00 ms. Allocated memory is still 308.3 MB. Free memory was 258.1 MB in the beginning and 238.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:29:26,280 INFO L168 Benchmark]: Abstract Interpretation took 1059.47 ms. Allocated memory was 308.3 MB in the beginning and 363.3 MB in the end (delta: 55.1 MB). Free memory was 238.1 MB in the beginning and 299.7 MB in the end (delta: -61.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:29:26,282 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 308.3 MB. Free memory is still 274.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 180.40 ms. Allocated memory is still 308.3 MB. Free memory was 269.2 MB in the beginning and 260.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.97 ms. Allocated memory is still 308.3 MB. Free memory was 260.1 MB in the beginning and 258.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 295.00 ms. Allocated memory is still 308.3 MB. Free memory was 258.1 MB in the beginning and 238.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 1059.47 ms. Allocated memory was 308.3 MB in the beginning and 363.3 MB in the end (delta: 55.1 MB). Free memory was 238.1 MB in the beginning and 299.7 MB in the end (delta: -61.6 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 64 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 499 LocStat_NO_SUPPORTING_DISEQUALITIES : 112 LocStat_NO_DISJUNCTIONS : -128 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 85 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 91 TransStat_NO_SUPPORTING_DISEQUALITIES : 14 TransStat_NO_DISJUNCTIONS : 86 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.450472 RENAME_VARIABLES(MILLISECONDS) : 0.023048 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.136299 PROJECTAWAY(MILLISECONDS) : 0.714550 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.002227 DISJOIN(MILLISECONDS) : 0.151674 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.044967 ADD_EQUALITY(MILLISECONDS) : 0.033303 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.025496 #CONJOIN_DISJUNCTIVE : 389 #RENAME_VARIABLES : 858 #UNFREEZE : 0 #CONJOIN : 577 #PROJECTAWAY : 573 #ADD_WEAK_EQUALITY : 13 #DISJOIN : 96 #RENAME_VARIABLES_DISJUNCTIVE : 851 #ADD_EQUALITY : 93 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 10 - 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: [L32] int i, b[100]; [L33] i = 0 [L33] COND FALSE !(i < 100) [L36] i = 0 [L36] COND TRUE i < 100 [L37] FCALL b[i] - UnprovableResult [Line: 31]: 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: [L32] int i, b[100]; [L33] i = 0 [L33] COND FALSE !(i < 100) [L36] i = 0 [L36] COND FALSE !(i < 100) [L41] return 0; [L41] 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: [L32] int i, b[100]; [L33] i = 0 [L33] COND TRUE i < 100 [L34] CALL foo(i, b, i) [L21] FCALL int a[n], i; [L22] i = 0 [L22] COND TRUE i < size [L23] FCALL b[i] - 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: [L32] int i, b[100]; [L33] i = 0 [L33] COND TRUE i < 100 [L34] CALL foo(i, b, i) [L21] FCALL int a[n], i; [L22] i = 0 [L22] COND TRUE i < size [L23] FCALL b[i] - 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: [L32] int i, b[100]; [L33] i = 0 [L33] COND TRUE i < 100 [L34] CALL foo(i, b, i) [L21] FCALL int a[n], i; [L22] i = 0 [L22] COND TRUE i < size [L23] EXPR, FCALL b[i] [L23] FCALL a[i] = b[i] - 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: [L32] int i, b[100]; [L33] i = 0 [L33] COND TRUE i < 100 [L34] CALL foo(i, b, i) [L21] FCALL int a[n], i; [L22] i = 0 [L22] COND FALSE !(i < size) [L25] CALL bar(a, size) [L12] int res = 0, i; [L13] i = 0 [L13] COND TRUE i < size [L14] FCALL b[i] - 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: [L32] int i, b[100]; [L33] i = 0 [L33] COND TRUE i < 100 [L34] CALL, EXPR foo(i, b, i) [L21] FCALL int a[n], i; [L22] i = 0 [L22] COND FALSE !(i < size) [L25] CALL bar(a, size) [L12] int res = 0, i; [L13] i = 0 [L13] COND FALSE !(i < size) [L16] RET return res; [L25] bar(a, size) [L25] COND FALSE !(bar(a, size)) [L28] return i; [L28] RET return i; [L34] EXPR foo(i, b, i) [L34] FCALL b[i] = foo(i, b, i) - 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: [L32] int i, b[100]; [L33] i = 0 [L33] COND TRUE i < 100 [L34] CALL, EXPR foo(i, b, i) [L21] FCALL int a[n], i; [L22] i = 0 [L22] COND FALSE !(i < size) [L25] CALL bar(a, size) [L12] int res = 0, i; [L13] i = 0 [L13] COND FALSE !(i < size) [L16] RET return res; [L25] bar(a, size) [L25] COND FALSE !(bar(a, size)) [L28] return i; [L28] RET return i; [L34] EXPR foo(i, b, i) [L34] FCALL b[i] = foo(i, b, i) - 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/ArraysOfVariableLength2_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-29-26-293.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-29-26-293.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-29-26-293.csv Received shutdown request...