java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf -i ../../../trunk/examples/svcomp/array-memsafety/subseq-alloca_true-valid-memsafety_true-termination.i


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


This is Ultimate 0.1.23-a5595af
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[2018-01-31 22:19:02,443 INFO  L98         SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf
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[2018-01-31 22:19:02,453 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-01-31 22:19:02,454 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-01-31 22:19:02,454 INFO  L133        SettingsManager]:  * to procedures, called more than once=true
[2018-01-31 22:19:02,455 INFO  L131        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2018-01-31 22:19:02,455 INFO  L133        SettingsManager]:  * Deactivate Weak Equivalences=true
[2018-01-31 22:19:02,455 INFO  L133        SettingsManager]:  * Abstract domain for RCFG-of-the-future=VPDomain
[2018-01-31 22:19:02,455 INFO  L133        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2018-01-31 22:19:02,456 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-01-31 22:19:02,456 INFO  L133        SettingsManager]:  * sizeof long=4
[2018-01-31 22:19:02,456 INFO  L133        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2018-01-31 22:19:02,456 INFO  L133        SettingsManager]:  * Check allocation purity=true
[2018-01-31 22:19:02,457 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-01-31 22:19:02,457 INFO  L133        SettingsManager]:  * sizeof POINTER=4
[2018-01-31 22:19:02,457 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-01-31 22:19:02,457 INFO  L133        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2018-01-31 22:19:02,457 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-01-31 22:19:02,457 INFO  L133        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2018-01-31 22:19:02,458 INFO  L133        SettingsManager]:  * sizeof long double=12
[2018-01-31 22:19:02,458 INFO  L133        SettingsManager]:  * Check if freed pointer was valid=false
[2018-01-31 22:19:02,458 INFO  L133        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
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[2018-01-31 22:19:02,458 INFO  L133        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2018-01-31 22:19:02,459 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-01-31 22:19:02,459 INFO  L133        SettingsManager]:  * Add additional assume for each assert=false
[2018-01-31 22:19:02,459 INFO  L133        SettingsManager]:  * SMT solver=External_DefaultMode
[2018-01-31 22:19:02,459 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
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[2018-01-31 22:19:02,460 INFO  L133        SettingsManager]:  * Interpolant automaton=TWOTRACK
[2018-01-31 22:19:02,460 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-01-31 22:19:02,460 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-01-31 22:19:02,460 INFO  L133        SettingsManager]:  * Stop after first violation was found=false
[2018-01-31 22:19:02,460 INFO  L133        SettingsManager]:  * Trace refinement strategy=CAMEL
[2018-01-31 22:19:02,460 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-01-31 22:19:02,461 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-01-31 22:19:02,461 INFO  L133        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-01-31 22:19:02,462 INFO  L131        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2018-01-31 22:19:02,462 INFO  L133        SettingsManager]:  * TransformationType=HEAP_SEPARATOR
[2018-01-31 22:19:02,496 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-01-31 22:19:02,509 INFO  L266   ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized
[2018-01-31 22:19:02,513 INFO  L222   ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected.
[2018-01-31 22:19:02,514 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-01-31 22:19:02,514 INFO  L276        PluginConnector]: CDTParser initialized
[2018-01-31 22:19:02,515 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/subseq-alloca_true-valid-memsafety_true-termination.i
[2018-01-31 22:19:02,664 INFO  L304   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-01-31 22:19:02,670 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2018-01-31 22:19:02,672 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-01-31 22:19:02,672 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-01-31 22:19:02,679 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-01-31 22:19:02,680 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:19:02" (1/1) ...
[2018-01-31 22:19:02,684 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51fea89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:19:02, skipping insertion in model container
[2018-01-31 22:19:02,684 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:19:02" (1/1) ...
[2018-01-31 22:19:02,703 INFO  L153             Dispatcher]: Using SV-COMP mode
[2018-01-31 22:19:02,742 INFO  L153             Dispatcher]: Using SV-COMP mode
[2018-01-31 22:19:02,883 INFO  L450          PostProcessor]: Settings: Checked method=main
[2018-01-31 22:19:02,904 INFO  L450          PostProcessor]: Settings: Checked method=main
[2018-01-31 22:19:02,911 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:19:02 WrapperNode
[2018-01-31 22:19:02,912 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-01-31 22:19:02,912 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-01-31 22:19:02,913 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-01-31 22:19:02,913 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-01-31 22:19:02,928 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:19:02" (1/1) ...
[2018-01-31 22:19:02,928 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:19:02" (1/1) ...
[2018-01-31 22:19:02,936 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:19:02" (1/1) ...
[2018-01-31 22:19:02,937 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:19:02" (1/1) ...
[2018-01-31 22:19:02,942 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:19:02" (1/1) ...
[2018-01-31 22:19:02,945 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:19:02" (1/1) ...
[2018-01-31 22:19:02,946 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:19:02" (1/1) ...
[2018-01-31 22:19:02,949 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-01-31 22:19:02,949 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-01-31 22:19:02,949 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-01-31 22:19:02,950 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-01-31 22:19:02,951 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:19:02" (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
[2018-01-31 22:19:02,999 INFO  L136     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2018-01-31 22:19:03,000 INFO  L136     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-01-31 22:19:03,000 INFO  L136     BoogieDeclarations]: Found implementation of procedure subseq
[2018-01-31 22:19:03,000 INFO  L136     BoogieDeclarations]: Found implementation of procedure main
[2018-01-31 22:19:03,000 INFO  L128     BoogieDeclarations]: Found specification of procedure write~int
[2018-01-31 22:19:03,000 INFO  L128     BoogieDeclarations]: Found specification of procedure read~int
[2018-01-31 22:19:03,000 INFO  L128     BoogieDeclarations]: Found specification of procedure ULTIMATE.free
[2018-01-31 22:19:03,000 INFO  L128     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2018-01-31 22:19:03,000 INFO  L128     BoogieDeclarations]: Found specification of procedure #Ultimate.alloc
[2018-01-31 22:19:03,000 INFO  L128     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2018-01-31 22:19:03,000 INFO  L128     BoogieDeclarations]: Found specification of procedure subseq
[2018-01-31 22:19:03,001 INFO  L128     BoogieDeclarations]: Found specification of procedure main
[2018-01-31 22:19:03,001 INFO  L128     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2018-01-31 22:19:03,001 INFO  L128     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-01-31 22:19:03,196 INFO  L257             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-01-31 22:19:03,196 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:19:03 BoogieIcfgContainer
[2018-01-31 22:19:03,196 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-01-31 22:19:03,197 INFO  L113        PluginConnector]: ------------------------Abstract Interpretation----------------------------
[2018-01-31 22:19:03,197 INFO  L271        PluginConnector]: Initializing Abstract Interpretation...
[2018-01-31 22:19:03,197 INFO  L276        PluginConnector]: Abstract Interpretation initialized
[2018-01-31 22:19:03,198 INFO  L185        PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:19:03" (1/1) ...
[2018-01-31 22:19:03,251 INFO  L101         FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2)
[2018-01-31 22:19:04,950 INFO  L262    AbstractInterpreter]: Some error location(s) were reachable
[2018-01-31 22:19:04,957 WARN  L343   cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2018-01-31 22:19:04,959 WARN  L343   cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2018-01-31 22:19:04,959 WARN  L343   cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2018-01-31 22:19:04,959 WARN  L343   cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2018-01-31 22:19:04,965 WARN  L343   cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2018-01-31 22:19:04,965 WARN  L343   cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2018-01-31 22:19:04,965 WARN  L343   cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2018-01-31 22:19:04,965 WARN  L343   cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
[2018-01-31 22:19:04,968 INFO  L271    AbstractInterpreter]: Visited 50 different actions 441 times. Merged at 38 different actions 259 times. Never widened. Found 52 fixpoints after 9 different actions. Largest state had 33 variables.
[2018-01-31 22:19:04,969 INFO  L132        PluginConnector]: ------------------------ END Abstract Interpretation----------------------------
[2018-01-31 22:19:04,970 INFO  L168              Benchmark]: Toolchain (without parser) took 2305.81 ms. Allocated memory was 310.9 MB in the beginning and 466.6 MB in the end (delta: 155.7 MB). Free memory was 269.2 MB in the beginning and 427.5 MB in the end (delta: -158.3 MB). There was no memory consumed. Max. memory is 5.3 GB.
[2018-01-31 22:19:04,971 INFO  L168              Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 310.9 MB. Free memory is still 275.2 MB. There was no memory consumed. Max. memory is 5.3 GB.
[2018-01-31 22:19:04,971 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 240.59 ms. Allocated memory is still 310.9 MB. Free memory was 268.2 MB in the beginning and 258.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB.
[2018-01-31 22:19:04,971 INFO  L168              Benchmark]: Boogie Preprocessor took 36.30 ms. Allocated memory is still 310.9 MB. Free memory was 258.2 MB in the beginning and 256.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB.
[2018-01-31 22:19:04,972 INFO  L168              Benchmark]: RCFGBuilder took 247.16 ms. Allocated memory is still 310.9 MB. Free memory was 256.2 MB in the beginning and 238.5 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 5.3 GB.
[2018-01-31 22:19:04,972 INFO  L168              Benchmark]: Abstract Interpretation took 1772.81 ms. Allocated memory was 310.9 MB in the beginning and 466.6 MB in the end (delta: 155.7 MB). Free memory was 238.5 MB in the beginning and 427.5 MB in the end (delta: -189.0 MB). There was no memory consumed. Max. memory is 5.3 GB.
[2018-01-31 22:19:04,973 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 310.9 MB. Free memory is still 275.2 MB. There was no memory consumed. Max. memory is 5.3 GB.
 * CACSL2BoogieTranslator took 240.59 ms. Allocated memory is still 310.9 MB. Free memory was 268.2 MB in the beginning and 258.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB.
 * Boogie Preprocessor took 36.30 ms. Allocated memory is still 310.9 MB. Free memory was 258.2 MB in the beginning and 256.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB.
 * RCFGBuilder took 247.16 ms. Allocated memory is still 310.9 MB. Free memory was 256.2 MB in the beginning and 238.5 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 5.3 GB.
 * Abstract Interpretation took 1772.81 ms. Allocated memory was 310.9 MB in the beginning and 466.6 MB in the end (delta: 155.7 MB). Free memory was 238.5 MB in the beginning and 427.5 MB in the end (delta: -189.0 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                               :      42 
LocStat_MAX_WEQGRAPH_SIZE                :       0 
LocStat_MAX_SIZEOF_WEQEDGELABEL          :       0 
LocStat_NO_SUPPORTING_EQUALITIES         :     451 
LocStat_NO_SUPPORTING_DISEQUALITIES      :      93 
LocStat_NO_DISJUNCTIONS                  :     -84 
LocStat_MAX_NO_DISJUNCTIONS              :      -1 
#Transitions                             :      56 
TransStat_MAX_WEQGRAPH_SIZE              :       0 
TransStat_MAX_SIZEOF_WEQEDGELABEL        :       0 
TransStat_NO_SUPPORTING_EQUALITIES       :      78 
TransStat_NO_SUPPORTING_DISEQUALITIES    :      11 
TransStat_NO_DISJUNCTIONS                :      56 
TransStat_MAX_NO_DISJUNCTIONS            :       2 

  - StatisticsResult: EqConstraintFactoryStatistics
    
CONJOIN_DISJUNCTIVE(MILLISECONDS)        : 0.456659 
RENAME_VARIABLES(MILLISECONDS)           : 0.021604 
UNFREEZE(MILLISECONDS)                   : 0.000000 
CONJOIN(MILLISECONDS)                    : 0.237266 
PROJECTAWAY(MILLISECONDS)                : 0.728722 
ADD_WEAK_EQUALITY(MILLISECONDS)          : 0.002485 
DISJOIN(MILLISECONDS)                    : 0.360577 
RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.045131 
ADD_EQUALITY(MILLISECONDS)               : 0.023385 
DISJOIN_DISJUNCTIVE(MILLISECONDS)        : 0.000000 
ADD_DISEQUALITY(MILLISECONDS)            : 0.007444 
#CONJOIN_DISJUNCTIVE                     :     719 
#RENAME_VARIABLES                        :    1606 
#UNFREEZE                                :       0 
#CONJOIN                                 :    1040 
#PROJECTAWAY                             :    1009 
#ADD_WEAK_EQUALITY                       :      11 
#DISJOIN                                 :     114 
#RENAME_VARIABLES_DISJUNCTIVE            :    1638 
#ADD_EQUALITY                            :      80 
#DISJOIN_DISJUNCTIVE                     :       0 
#ADD_DISEQUALITY                         :       9 

  - UnprovableResult [Line: 1]: Unable to prove that all allocated memory was freed
    Unable to prove that all allocated memory was freed
 Reason: abstract domain could reach this error location. 
Possible FailurePath: 

  - UnprovableResult [Line: 553]: 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: 
[L554]               int length1 = __VERIFIER_nondet_int();
[L555]               int length2 = __VERIFIER_nondet_int();
[L556]  COND TRUE    length1 < 1
[L557]               length1 = 1
[L559]  COND TRUE    length2 < 1
[L560]               length2 = 1
[L562]  EXPR, FCALL  __builtin_alloca (length1 * sizeof(char))
[L562]               char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char));
[L563]  EXPR, FCALL  __builtin_alloca (length2 * sizeof(char))
[L563]               char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char));
[L564]  FCALL        nondetString1[length1-1] = '\0'
[L565]  FCALL        nondetString2[length2-1] = '\0'
[L566]  CALL, EXPR   subseq(nondetString1,nondetString2)
[L542]               char *ps = s;
[L543]               char *pt = t;
[L544]  EXPR, FCALL  \read(*ps)
[L544]               *ps != '\0' && *pt != '\0'
[L544]  COND FALSE   !(*ps != '\0' && *pt != '\0')
[L550]  EXPR, FCALL  \read(*pt)
[L550]  COND TRUE    *pt == '\0'
[L550]  RET          return 1;
[L566]  EXPR         subseq(nondetString1,nondetString2)
[L566]               return subseq(nondetString1,nondetString2);

  - UnprovableResult [Line: 1]: Unable to prove that all allocated memory was freed
    Unable to prove that all allocated memory was freed
 Reason: abstract domain could reach this error location. 
Possible FailurePath: 
[L554]               int length1 = __VERIFIER_nondet_int();
[L555]               int length2 = __VERIFIER_nondet_int();
[L556]  COND TRUE    length1 < 1
[L557]               length1 = 1
[L559]  COND TRUE    length2 < 1
[L560]               length2 = 1
[L562]  EXPR, FCALL  __builtin_alloca (length1 * sizeof(char))
[L562]               char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char));
[L563]  EXPR, FCALL  __builtin_alloca (length2 * sizeof(char))
[L563]               char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char));
[L564]  FCALL        nondetString1[length1-1] = '\0'
[L565]  FCALL        nondetString2[length2-1] = '\0'
[L566]  CALL, EXPR   subseq(nondetString1,nondetString2)
[L542]               char *ps = s;
[L543]               char *pt = t;
[L544]  EXPR, FCALL  \read(*ps)
[L544]               *ps != '\0' && *pt != '\0'
[L544]  COND FALSE   !(*ps != '\0' && *pt != '\0')
[L550]  EXPR, FCALL  \read(*pt)
[L550]  COND TRUE    *pt == '\0'
[L550]  RET          return 1;
[L566]  EXPR         subseq(nondetString1,nondetString2)
[L566]               return subseq(nondetString1,nondetString2);

  - PositiveResult [Line: 540]: all allocated memory was freed
    For all program executions holds that all allocated memory was freed 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)
  - GenericResult: Unfinished Backtranslation
    Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
  - GenericResult: Unfinished Backtranslation
    Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
  - GenericResult: Unfinished Backtranslation
    Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
  - GenericResult: Unfinished Backtranslation
    Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
  - GenericResult: Unfinished Backtranslation
    Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
  - GenericResult: Unfinished Backtranslation
    Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true)
  - 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/subseq-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-31_22-19-04-982.csv
Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/subseq-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-31_22-19-04-982.csv
Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/subseq-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-31_22-19-04-982.csv
Received shutdown request...