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/array-memsafety/selectionsort_unsafe_false-valid-deref.i


--------------------------------------------------------------------------------


This is Ultimate 0.1.23-6b94a2f
[2018-01-24 16:21:08,798 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-01-24 16:21:08,799 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
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[2018-01-24 16:21:08,815 INFO  L174        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
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[2018-01-24 16:21:08,827 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-01-24 16:21:08,829 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
[2018-01-24 16:21:08,831 INFO  L174        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-01-24 16:21:08,833 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-01-24 16:21:08,834 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-01-24 16:21:08,837 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2018-01-24 16:21:08,837 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-01-24 16:21:08,838 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2018-01-24 16:21:08,843 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 16:21:08,853 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-01-24 16:21:08,853 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-01-24 16:21:08,854 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-01-24 16:21:08,854 INFO  L133        SettingsManager]:  * to procedures, called more than once=true
[2018-01-24 16:21:08,854 INFO  L131        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2018-01-24 16:21:08,855 INFO  L133        SettingsManager]:  * Deactivate Weak Equivalences=true
[2018-01-24 16:21:08,855 INFO  L133        SettingsManager]:  * Abstract domain for RCFG-of-the-future=VPDomain
[2018-01-24 16:21:08,855 INFO  L133        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2018-01-24 16:21:08,856 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-01-24 16:21:08,856 INFO  L133        SettingsManager]:  * sizeof long=4
[2018-01-24 16:21:08,856 INFO  L133        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2018-01-24 16:21:08,856 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-01-24 16:21:08,856 INFO  L133        SettingsManager]:  * sizeof POINTER=4
[2018-01-24 16:21:08,857 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-01-24 16:21:08,857 INFO  L133        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2018-01-24 16:21:08,857 INFO  L133        SettingsManager]:  * Bitprecise bitfields=true
[2018-01-24 16:21:08,857 INFO  L133        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2018-01-24 16:21:08,857 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-01-24 16:21:08,857 INFO  L133        SettingsManager]:  * sizeof long double=12
[2018-01-24 16:21:08,858 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-01-24 16:21:08,858 INFO  L133        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2018-01-24 16:21:08,858 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-01-24 16:21:08,858 INFO  L133        SettingsManager]:  * Add additional assume for each assert=false
[2018-01-24 16:21:08,858 INFO  L133        SettingsManager]:  * SMT solver=External_DefaultMode
[2018-01-24 16:21:08,859 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-01-24 16:21:08,859 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-01-24 16:21:08,859 INFO  L133        SettingsManager]:  * Interpolant automaton=TWOTRACK
[2018-01-24 16:21:08,859 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-01-24 16:21:08,859 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-01-24 16:21:08,860 INFO  L133        SettingsManager]:  * Trace refinement strategy=CAMEL
[2018-01-24 16:21:08,860 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-01-24 16:21:08,860 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-01-24 16:21:08,860 INFO  L133        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-01-24 16:21:08,861 INFO  L131        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2018-01-24 16:21:08,861 INFO  L133        SettingsManager]:  * TransformationType=HEAP_SEPARATOR
[2018-01-24 16:21:08,897 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-01-24 16:21:08,910 INFO  L266   ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized
[2018-01-24 16:21:08,915 INFO  L222   ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected.
[2018-01-24 16:21:08,917 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-01-24 16:21:08,917 INFO  L276        PluginConnector]: CDTParser initialized
[2018-01-24 16:21:08,918 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/selectionsort_unsafe_false-valid-deref.i
[2018-01-24 16:21:09,057 INFO  L304   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-01-24 16:21:09,061 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2018-01-24 16:21:09,062 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-01-24 16:21:09,062 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-01-24 16:21:09,068 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-01-24 16:21:09,069 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:21:09" (1/1) ...
[2018-01-24 16:21:09,073 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c3f4da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09, skipping insertion in model container
[2018-01-24 16:21:09,073 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:21:09" (1/1) ...
[2018-01-24 16:21:09,088 INFO  L153             Dispatcher]: Using SV-COMP mode
[2018-01-24 16:21:09,103 INFO  L153             Dispatcher]: Using SV-COMP mode
[2018-01-24 16:21:09,220 INFO  L450          PostProcessor]: Settings: Checked method=main
[2018-01-24 16:21:09,235 INFO  L450          PostProcessor]: Settings: Checked method=main
[2018-01-24 16:21:09,242 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09 WrapperNode
[2018-01-24 16:21:09,242 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-01-24 16:21:09,243 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-01-24 16:21:09,243 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-01-24 16:21:09,243 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-01-24 16:21:09,261 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ...
[2018-01-24 16:21:09,261 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ...
[2018-01-24 16:21:09,271 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ...
[2018-01-24 16:21:09,271 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ...
[2018-01-24 16:21:09,273 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ...
[2018-01-24 16:21:09,277 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ...
[2018-01-24 16:21:09,279 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ...
[2018-01-24 16:21:09,281 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-01-24 16:21:09,282 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-01-24 16:21:09,282 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-01-24 16:21:09,282 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-01-24 16:21:09,283 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (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 16:21:09,330 INFO  L136     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2018-01-24 16:21:09,330 INFO  L136     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-01-24 16:21:09,331 INFO  L136     BoogieDeclarations]: Found implementation of procedure SelectionSort
[2018-01-24 16:21:09,331 INFO  L136     BoogieDeclarations]: Found implementation of procedure main
[2018-01-24 16:21:09,331 INFO  L128     BoogieDeclarations]: Found specification of procedure write~int
[2018-01-24 16:21:09,331 INFO  L128     BoogieDeclarations]: Found specification of procedure read~int
[2018-01-24 16:21:09,331 INFO  L128     BoogieDeclarations]: Found specification of procedure ULTIMATE.free
[2018-01-24 16:21:09,331 INFO  L128     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2018-01-24 16:21:09,331 INFO  L128     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2018-01-24 16:21:09,331 INFO  L128     BoogieDeclarations]: Found specification of procedure SelectionSort
[2018-01-24 16:21:09,331 INFO  L128     BoogieDeclarations]: Found specification of procedure main
[2018-01-24 16:21:09,332 INFO  L128     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2018-01-24 16:21:09,332 INFO  L128     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-01-24 16:21:09,541 INFO  L257             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-01-24 16:21:09,542 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:21:09 BoogieIcfgContainer
[2018-01-24 16:21:09,542 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-01-24 16:21:09,542 INFO  L113        PluginConnector]: ------------------------Abstract Interpretation----------------------------
[2018-01-24 16:21:09,542 INFO  L271        PluginConnector]: Initializing Abstract Interpretation...
[2018-01-24 16:21:09,542 INFO  L276        PluginConnector]: Abstract Interpretation initialized
[2018-01-24 16:21:09,543 INFO  L185        PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:21:09" (1/1) ...
[2018-01-24 16:21:09,582 INFO  L101         FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2)
[2018-01-24 16:21:10,288 INFO  L259    AbstractInterpreter]: Some error location(s) were reachable
[2018-01-24 16:21:10,307 INFO  L268    AbstractInterpreter]: Visited 47 different actions 172 times. Merged at 27 different actions 83 times. Never widened. Found 23 fixpoints after 14 different actions. Largest state had 26 variables.
[2018-01-24 16:21:10,309 INFO  L132        PluginConnector]: ------------------------ END Abstract Interpretation----------------------------
[2018-01-24 16:21:10,310 INFO  L168              Benchmark]: Toolchain (without parser) took 1251.74 ms. Allocated memory was 303.6 MB in the beginning and 361.8 MB in the end (delta: 58.2 MB). Free memory was 264.6 MB in the beginning and 334.1 MB in the end (delta: -69.5 MB). There was no memory consumed. Max. memory is 5.3 GB.
[2018-01-24 16:21:10,310 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 303.6 MB. Free memory is still 269.6 MB. There was no memory consumed. Max. memory is 5.3 GB.
[2018-01-24 16:21:10,311 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 180.39 ms. Allocated memory is still 303.6 MB. Free memory was 264.6 MB in the beginning and 255.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB.
[2018-01-24 16:21:10,311 INFO  L168              Benchmark]: Boogie Preprocessor took 38.49 ms. Allocated memory is still 303.6 MB. Free memory was 255.5 MB in the beginning and 254.5 MB in the end (delta: 996.7 kB). Peak memory consumption was 996.7 kB. Max. memory is 5.3 GB.
[2018-01-24 16:21:10,311 INFO  L168              Benchmark]: RCFGBuilder took 259.93 ms. Allocated memory is still 303.6 MB. Free memory was 254.5 MB in the beginning and 237.8 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB.
[2018-01-24 16:21:10,311 INFO  L168              Benchmark]: Abstract Interpretation took 766.60 ms. Allocated memory was 303.6 MB in the beginning and 361.8 MB in the end (delta: 58.2 MB). Free memory was 237.8 MB in the beginning and 334.1 MB in the end (delta: -96.3 MB). There was no memory consumed. Max. memory is 5.3 GB.
[2018-01-24 16:21:10,313 INFO  L344   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 303.6 MB. Free memory is still 269.6 MB. There was no memory consumed. Max. memory is 5.3 GB.
 * CACSL2BoogieTranslator took 180.39 ms. Allocated memory is still 303.6 MB. Free memory was 264.6 MB in the beginning and 255.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB.
 * Boogie Preprocessor took 38.49 ms. Allocated memory is still 303.6 MB. Free memory was 255.5 MB in the beginning and 254.5 MB in the end (delta: 996.7 kB). Peak memory consumption was 996.7 kB. Max. memory is 5.3 GB.
 * RCFGBuilder took 259.93 ms. Allocated memory is still 303.6 MB. Free memory was 254.5 MB in the beginning and 237.8 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB.
 * Abstract Interpretation took 766.60 ms. Allocated memory was 303.6 MB in the beginning and 361.8 MB in the end (delta: 58.2 MB). Free memory was 237.8 MB in the beginning and 334.1 MB in the end (delta: -96.3 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                               :      37 
LocStat_MAX_WEQGRAPH_SIZE                :       0 
LocStat_MAX_SIZEOF_WEQEDGELABEL          :       0 
LocStat_NO_SUPPORTING_EQUALITIES         :     233 
LocStat_NO_SUPPORTING_DISEQUALITIES      :      15 
LocStat_NO_DISJUNCTIONS                  :     -74 
LocStat_MAX_NO_DISJUNCTIONS              :      -1 
#Transitions                             :      53 
TransStat_MAX_WEQGRAPH_SIZE              :       0 
TransStat_MAX_SIZEOF_WEQEDGELABEL        :       0 
TransStat_NO_SUPPORTING_EQUALITIES       :      56 
TransStat_NO_SUPPORTING_DISEQUALITIES    :       6 
TransStat_NO_DISJUNCTIONS                :      56 
TransStat_MAX_NO_DISJUNCTIONS            :       2 

  - StatisticsResult: EqConstraintFactoryStatistics
    
CONJOIN_DISJUNCTIVE(MILLISECONDS)        : 0.393229 
RENAME_VARIABLES(MILLISECONDS)           : 0.429439 
UNFREEZE(MILLISECONDS)                   : 0.000000 
CONJOIN(MILLISECONDS)                    : 0.297461 
PROJECTAWAY(MILLISECONDS)                : 0.297930 
ADD_WEAK_EQUALITY(MILLISECONDS)          : 0.001822 
DISJOIN(MILLISECONDS)                    : 0.201729 
RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.461721 
ADD_EQUALITY(MILLISECONDS)               : 0.055761 
DISJOIN_DISJUNCTIVE(MILLISECONDS)        : 0.000000 
ADD_DISEQUALITY(MILLISECONDS)            : 0.036767 
#CONJOIN_DISJUNCTIVE                     :     257 
#RENAME_VARIABLES                        :     537 
#UNFREEZE                                :       0 
#CONJOIN                                 :     336 
#PROJECTAWAY                             :     320 
#ADD_WEAK_EQUALITY                       :       5 
#DISJOIN                                 :      44 
#RENAME_VARIABLES_DISJUNCTIVE            :     510 
#ADD_EQUALITY                            :      58 
#DISJOIN_DISJUNCTIVE                     :       0 
#ADD_DISEQUALITY                         :       6 

  - 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: 
[L20]              int *a;
[L21]              int array_size = __VERIFIER_nondet_int();
[L22]  CALL        SelectionSort(a, array_size)
[L4]               int i;
[L5]               i = 0
[L5]   COND TRUE   i < array_size - 1
[L7]               int j, min, temp;
[L8]               min = i
[L9]               j = i+1
[L9]   COND FALSE  !(j < array_size)
[L14]  FCALL       a[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: 
[L20]              int *a;
[L21]              int array_size = __VERIFIER_nondet_int();
[L22]  CALL        SelectionSort(a, array_size)
[L4]               int i;
[L5]               i = 0
[L5]   COND TRUE   i < array_size - 1
[L7]               int j, min, temp;
[L8]               min = i
[L9]               j = i+1
[L9]   COND FALSE  !(j < array_size)
[L14]  FCALL       a[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: 
[L20]             int *a;
[L21]             int array_size = __VERIFIER_nondet_int();
[L22]  CALL       SelectionSort(a, array_size)
[L4]              int i;
[L5]              i = 0
[L5]   COND TRUE  i < array_size - 1
[L7]              int j, min, temp;
[L8]              min = i
[L9]              j = i+1
[L9]   COND TRUE  j < array_size
[L11]  FCALL      a[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: 
[L20]             int *a;
[L21]             int array_size = __VERIFIER_nondet_int();
[L22]  CALL       SelectionSort(a, array_size)
[L4]              int i;
[L5]              i = 0
[L5]   COND TRUE  i < array_size - 1
[L7]              int j, min, temp;
[L8]              min = i
[L9]              j = i+1
[L9]   COND TRUE  j < array_size
[L11]  FCALL      a[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: 
[L20]             int *a;
[L21]             int array_size = __VERIFIER_nondet_int();
[L22]  CALL       SelectionSort(a, array_size)
[L4]              int i;
[L5]              i = 0
[L5]   COND TRUE  i < array_size - 1
[L7]              int j, min, temp;
[L8]              min = i
[L9]              j = i+1
[L9]   COND TRUE  j < array_size
[L11]  FCALL      a[j]
[L11]  FCALL      a[min]

  - 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: 
[L20]               int *a;
[L21]               int array_size = __VERIFIER_nondet_int();
[L22]  CALL         SelectionSort(a, array_size)
[L4]                int i;
[L5]                i = 0
[L5]   COND TRUE    i < array_size - 1
[L7]                int j, min, temp;
[L8]                min = i
[L9]                j = i+1
[L9]   COND FALSE   !(j < array_size)
[L14]  EXPR, FCALL  a[i]
[L14]               temp = a[i]
[L15]  FCALL        a[min]

  - 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: 
[L20]               int *a;
[L21]               int array_size = __VERIFIER_nondet_int();
[L22]  CALL         SelectionSort(a, array_size)
[L4]                int i;
[L5]                i = 0
[L5]   COND TRUE    i < array_size - 1
[L7]                int j, min, temp;
[L8]                min = i
[L9]                j = i+1
[L9]   COND FALSE   !(j < array_size)
[L14]  EXPR, FCALL  a[i]
[L14]               temp = a[i]
[L15]  EXPR, FCALL  a[min]
[L15]  FCALL        a[i] = a[min]

  - 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: 
[L20]               int *a;
[L21]               int array_size = __VERIFIER_nondet_int();
[L22]  CALL         SelectionSort(a, array_size)
[L4]                int i;
[L5]                i = 0
[L5]   COND TRUE    i < array_size - 1
[L7]                int j, min, temp;
[L8]                min = i
[L9]                j = i+1
[L9]   COND FALSE   !(j < array_size)
[L14]  EXPR, FCALL  a[i]
[L14]               temp = a[i]
[L15]  EXPR, FCALL  a[min]
[L15]  FCALL        a[i] = a[min]
[L16]  FCALL        a[min] = temp

  - 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: 19]: all allocated memory was freed
    For all program executions holds that all allocated memory was freed 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
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/selectionsort_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-21-10-320.csv
Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/selectionsort_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-21-10-320.csv
Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/selectionsort_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-21-10-320.csv
Received shutdown request...