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/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 13:54:34,017 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 13:54:34,018 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 13:54:34,030 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 13:54:34,031 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 13:54:34,032 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 13:54:34,033 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 13:54:34,034 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 13:54:34,035 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 13:54:34,036 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 13:54:34,036 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 13:54:34,036 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 13:54:34,037 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 13:54:34,038 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 13:54:34,039 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 13:54:34,042 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 13:54:34,044 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 13:54:34,046 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 13:54:34,047 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 13:54:34,049 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 13:54:34,051 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 13:54:34,057 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 13:54:34,068 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 13:54:34,068 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 13:54:34,069 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 13:54:34,069 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 13:54:34,069 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 13:54:34,070 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 13:54:34,070 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 13:54:34,070 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 13:54:34,071 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 13:54:34,071 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 13:54:34,071 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 13:54:34,071 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 13:54:34,071 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 13:54:34,072 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 13:54:34,072 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 13:54:34,072 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 13:54:34,072 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 13:54:34,072 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 13:54:34,073 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 13:54:34,073 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 13:54:34,073 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 13:54:34,073 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 13:54:34,074 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 13:54:34,074 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 13:54:34,074 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 13:54:34,074 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 13:54:34,074 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 13:54:34,075 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 13:54:34,075 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 13:54:34,075 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 13:54:34,105 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 13:54:34,106 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 13:54:34,107 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 13:54:34,107 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 13:54:34,142 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 13:54:34,156 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 13:54:34,161 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 13:54:34,163 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 13:54:34,163 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 13:54:34,164 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i [2018-01-24 13:54:34,350 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 13:54:34,356 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 13:54:34,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 13:54:34,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 13:54:34,362 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 13:54:34,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:54:34" (1/1) ... [2018-01-24 13:54:34,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25da0e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:54:34, skipping insertion in model container [2018-01-24 13:54:34,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:54:34" (1/1) ... [2018-01-24 13:54:34,381 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:54:34,418 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:54:34,537 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:54:34,553 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:54:34,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:54:34 WrapperNode [2018-01-24 13:54:34,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 13:54:34,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 13:54:34,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 13:54:34,563 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 13:54:34,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:54:34" (1/1) ... [2018-01-24 13:54:34,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:54:34" (1/1) ... [2018-01-24 13:54:34,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:54:34" (1/1) ... [2018-01-24 13:54:34,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:54:34" (1/1) ... [2018-01-24 13:54:34,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:54:34" (1/1) ... [2018-01-24 13:54:34,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:54:34" (1/1) ... [2018-01-24 13:54:34,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:54:34" (1/1) ... [2018-01-24 13:54:34,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 13:54:34,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 13:54:34,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 13:54:34,602 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 13:54:34,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:54:34" (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 13:54:34,655 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 13:54:34,655 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 13:54:34,655 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 13:54:34,656 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 13:54:34,656 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 13:54:34,656 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 13:54:34,656 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 13:54:34,656 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 13:54:34,656 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 13:54:34,657 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 13:54:34,657 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 13:54:34,657 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 13:54:34,861 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 13:54:34,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:54:34 BoogieIcfgContainer [2018-01-24 13:54:34,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 13:54:34,863 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 13:54:34,863 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 13:54:34,863 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 13:54:34,864 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:54:34" (1/1) ... [2018-01-24 13:54:34,914 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 13:55:00,714 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 13:55:00,731 INFO L268 AbstractInterpreter]: Visited 50 different actions 557 times. Merged at 32 different actions 334 times. Widened at 5 different actions 25 times. Found 59 fixpoints after 15 different actions. Largest state had 26 variables. [2018-01-24 13:55:00,733 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 13:55:00,734 INFO L168 Benchmark]: Toolchain (without parser) took 26382.60 ms. Allocated memory was 305.1 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 262.0 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 343.3 MB. Max. memory is 5.3 GB. [2018-01-24 13:55:00,734 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 305.1 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 13:55:00,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.90 ms. Allocated memory is still 305.1 MB. Free memory was 262.0 MB in the beginning and 252.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-24 13:55:00,735 INFO L168 Benchmark]: Boogie Preprocessor took 38.70 ms. Allocated memory is still 305.1 MB. Free memory was 252.0 MB in the beginning and 250.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 13:55:00,735 INFO L168 Benchmark]: RCFGBuilder took 260.78 ms. Allocated memory is still 305.1 MB. Free memory was 250.0 MB in the beginning and 233.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. [2018-01-24 13:55:00,736 INFO L168 Benchmark]: Abstract Interpretation took 25869.91 ms. Allocated memory was 305.1 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 233.0 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 314.3 MB. Max. memory is 5.3 GB. [2018-01-24 13:55:00,737 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 305.1 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 205.90 ms. Allocated memory is still 305.1 MB. Free memory was 262.0 MB in the beginning and 252.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 38.70 ms. Allocated memory is still 305.1 MB. Free memory was 252.0 MB in the beginning and 250.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 260.78 ms. Allocated memory is still 305.1 MB. Free memory was 250.0 MB in the beginning and 233.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 25869.91 ms. Allocated memory was 305.1 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 233.0 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 314.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 36 LocStat_MAX_WEQGRAPH_SIZE : 3 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 339 LocStat_NO_SUPPORTING_DISEQUALITIES : 51 LocStat_NO_DISJUNCTIONS : -72 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 54 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 60 TransStat_NO_SUPPORTING_DISEQUALITIES : 9 TransStat_NO_DISJUNCTIONS : 56 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 5.940767 RENAME_VARIABLES(MILLISECONDS) : 1.550288 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 2.974145 PROJECTAWAY(MILLISECONDS) : 0.209321 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.043075 DISJOIN(MILLISECONDS) : 0.545662 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 1.571376 ADD_EQUALITY(MILLISECONDS) : 0.013525 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.083771 #CONJOIN_DISJUNCTIVE : 938 #RENAME_VARIABLES : 1939 #UNFREEZE : 0 #CONJOIN : 1080 #PROJECTAWAY : 956 #ADD_WEAK_EQUALITY : 8 #DISJOIN : 242 #RENAME_VARIABLES_DISJUNCTIVE : 1904 #ADD_EQUALITY : 61 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 8 - 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: [L541] int i, j; [L542] int val; [L543] int length = __VERIFIER_nondet_int(); [L544] COND TRUE length < 1 || length >= 2147483647 / sizeof(int) [L544] length = 1 [L545] EXPR, FCALL __builtin_alloca (length*sizeof(int)) [L545] int *arr = __builtin_alloca (length*sizeof(int)); [L546] COND FALSE !(!arr) [L547] i=0 [L547] COND TRUE i= 2147483647 / sizeof(int) [L544] length = 1 [L545] EXPR, FCALL __builtin_alloca (length*sizeof(int)) [L545] int *arr = __builtin_alloca (length*sizeof(int)); [L546] COND FALSE !(!arr) [L547] i=0 [L547] COND FALSE !(i= 2147483647 / sizeof(int) [L544] length = 1 [L545] EXPR, FCALL __builtin_alloca (length*sizeof(int)) [L545] int *arr = __builtin_alloca (length*sizeof(int)); [L546] COND FALSE !(!arr) [L547] i=0 [L547] COND FALSE !(i 0 [L556] FCALL arr[j] - 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: [L541] int i, j; [L542] int val; [L543] int length = __VERIFIER_nondet_int(); [L544] COND TRUE length < 1 || length >= 2147483647 / sizeof(int) [L544] length = 1 [L545] EXPR, FCALL __builtin_alloca (length*sizeof(int)) [L545] int *arr = __builtin_alloca (length*sizeof(int)); [L546] COND FALSE !(!arr) [L547] i=0 [L547] COND FALSE !(i 0 [L556] EXPR, FCALL arr[j] [L556] arr[j]-- - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location 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/count_down-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_13-55-00-745.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/count_down-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_13-55-00-745.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/count_down-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_13-55-00-745.csv Received shutdown request...