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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrcat_unsafe_false-valid-deref.i


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This is Ultimate 0.1.23-acfac67
[2018-01-28 23:10:09,518 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-01-28 23:10:09,520 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
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[2018-01-28 23:10:09,556 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2018-01-28 23:10:09,563 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_SS.epf
[2018-01-28 23:10:09,573 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-01-28 23:10:09,573 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-01-28 23:10:09,574 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-01-28 23:10:09,574 INFO  L133        SettingsManager]:  * to procedures, called more than once=true
[2018-01-28 23:10:09,574 INFO  L131        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2018-01-28 23:10:09,575 INFO  L133        SettingsManager]:  * Abstract domain for RCFG-of-the-future=VPDomain
[2018-01-28 23:10:09,575 INFO  L133        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2018-01-28 23:10:09,575 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-01-28 23:10:09,576 INFO  L133        SettingsManager]:  * sizeof long=4
[2018-01-28 23:10:09,576 INFO  L133        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2018-01-28 23:10:09,576 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-01-28 23:10:09,576 INFO  L133        SettingsManager]:  * sizeof POINTER=4
[2018-01-28 23:10:09,576 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-01-28 23:10:09,577 INFO  L133        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2018-01-28 23:10:09,577 INFO  L133        SettingsManager]:  * Bitprecise bitfields=true
[2018-01-28 23:10:09,577 INFO  L133        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2018-01-28 23:10:09,577 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-01-28 23:10:09,577 INFO  L133        SettingsManager]:  * sizeof long double=12
[2018-01-28 23:10:09,578 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-01-28 23:10:09,578 INFO  L133        SettingsManager]:  * Size of a code block=SingleStatement
[2018-01-28 23:10:09,578 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-01-28 23:10:09,578 INFO  L133        SettingsManager]:  * Add additional assume for each assert=false
[2018-01-28 23:10:09,578 INFO  L133        SettingsManager]:  * SMT solver=External_DefaultMode
[2018-01-28 23:10:09,578 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-01-28 23:10:09,579 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-01-28 23:10:09,579 INFO  L133        SettingsManager]:  * Interpolant automaton=TWOTRACK
[2018-01-28 23:10:09,579 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-01-28 23:10:09,579 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-01-28 23:10:09,579 INFO  L133        SettingsManager]:  * Trace refinement strategy=CAMEL
[2018-01-28 23:10:09,580 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-01-28 23:10:09,580 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-01-28 23:10:09,580 INFO  L133        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-01-28 23:10:09,581 INFO  L131        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2018-01-28 23:10:09,581 INFO  L133        SettingsManager]:  * TransformationType=HEAP_SEPARATOR
[2018-01-28 23:10:09,616 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-01-28 23:10:09,645 INFO  L266   ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized
[2018-01-28 23:10:09,649 INFO  L222   ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected.
[2018-01-28 23:10:09,651 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-01-28 23:10:09,651 INFO  L276        PluginConnector]: CDTParser initialized
[2018-01-28 23:10:09,652 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcat_unsafe_false-valid-deref.i
[2018-01-28 23:10:09,768 INFO  L304   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-01-28 23:10:09,773 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2018-01-28 23:10:09,773 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-01-28 23:10:09,774 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-01-28 23:10:09,779 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-01-28 23:10:09,780 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 11:10:09" (1/1) ...
[2018-01-28 23:10:09,783 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1716efa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:10:09, skipping insertion in model container
[2018-01-28 23:10:09,783 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 11:10:09" (1/1) ...
[2018-01-28 23:10:09,797 INFO  L153             Dispatcher]: Using SV-COMP mode
[2018-01-28 23:10:09,811 INFO  L153             Dispatcher]: Using SV-COMP mode
[2018-01-28 23:10:09,925 INFO  L450          PostProcessor]: Settings: Checked method=main
[2018-01-28 23:10:09,941 INFO  L450          PostProcessor]: Settings: Checked method=main
[2018-01-28 23:10:09,946 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:10:09 WrapperNode
[2018-01-28 23:10:09,947 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-01-28 23:10:09,947 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-01-28 23:10:09,947 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-01-28 23:10:09,947 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-01-28 23:10:09,958 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:10:09" (1/1) ...
[2018-01-28 23:10:09,959 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:10:09" (1/1) ...
[2018-01-28 23:10:09,968 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:10:09" (1/1) ...
[2018-01-28 23:10:09,968 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:10:09" (1/1) ...
[2018-01-28 23:10:09,971 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:10:09" (1/1) ...
[2018-01-28 23:10:09,974 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:10:09" (1/1) ...
[2018-01-28 23:10:09,975 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:10:09" (1/1) ...
[2018-01-28 23:10:09,976 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-01-28 23:10:09,976 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-01-28 23:10:09,977 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-01-28 23:10:09,977 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-01-28 23:10:09,977 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:10:09" (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
[2018-01-28 23:10:10,049 INFO  L136     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2018-01-28 23:10:10,049 INFO  L136     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-01-28 23:10:10,050 INFO  L136     BoogieDeclarations]: Found implementation of procedure cstrcat
[2018-01-28 23:10:10,050 INFO  L136     BoogieDeclarations]: Found implementation of procedure main
[2018-01-28 23:10:10,050 INFO  L128     BoogieDeclarations]: Found specification of procedure write~int
[2018-01-28 23:10:10,050 INFO  L128     BoogieDeclarations]: Found specification of procedure read~int
[2018-01-28 23:10:10,050 INFO  L128     BoogieDeclarations]: Found specification of procedure ULTIMATE.free
[2018-01-28 23:10:10,050 INFO  L128     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2018-01-28 23:10:10,051 INFO  L128     BoogieDeclarations]: Found specification of procedure cstrcat
[2018-01-28 23:10:10,051 INFO  L128     BoogieDeclarations]: Found specification of procedure main
[2018-01-28 23:10:10,051 INFO  L128     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2018-01-28 23:10:10,051 INFO  L128     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-01-28 23:10:10,217 INFO  L257             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-01-28 23:10:10,217 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 11:10:10 BoogieIcfgContainer
[2018-01-28 23:10:10,218 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-01-28 23:10:10,218 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2018-01-28 23:10:10,218 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2018-01-28 23:10:10,219 INFO  L276        PluginConnector]: IcfgTransformer initialized
[2018-01-28 23:10:10,221 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 11:10:10" (1/1) ...
[2018-01-28 23:10:10,228 INFO  L103   apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning
[2018-01-28 23:10:10,228 INFO  L104   apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int]
[2018-01-28 23:10:10,229 INFO  L150   apSepIcfgTransformer]: starting freeze-var-style preprocessing
[2018-01-28 23:10:10,273 INFO  L218   apSepIcfgTransformer]: finished preprocessing for the equality analysis
[2018-01-28 23:10:10,328 INFO  L101         FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2)
[2018-01-28 23:10:20,153 INFO  L311    AbstractInterpreter]: Visited 56 different actions 207 times. Merged at 30 different actions 125 times. Widened at 1 different actions 3 times. Found 15 fixpoints after 6 different actions. Largest state had 33 variables.
[2018-01-28 23:10:20,187 INFO  L226   apSepIcfgTransformer]: finished equality analysis
[2018-01-28 23:10:20,201 INFO  L244     HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 3
[2018-01-28 23:10:20,202 INFO  L238   apSepIcfgTransformer]: Finished pre analysis before partitioning
[2018-01-28 23:10:20,202 INFO  L239   apSepIcfgTransformer]:   array groups: Set: 
	[#memory_int]
[2018-01-28 23:10:20,203 INFO  L241   apSepIcfgTransformer]:   select infos: Set: 
	((select (select |v_#memory_int_2| |v_cstrcat_#t~post3.base_3|) |v_cstrcat_#t~post3.offset_3|), at (SUMMARY for call #t~mem5 := read~int(#t~post3.base, #t~post3.offset, 1); srcloc: L6''''))
	((select (select |v_#memory_int_1| v_cstrcat_~s~1.base_2) v_cstrcat_~s~1.offset_2), at (SUMMARY for call #t~mem0 := read~int(~s~1.base, ~s~1.offset, 1); srcloc: L4))
	((select |v_#memory_int_4| |v_cstrcat_#t~post2.base_3|), at (SUMMARY for call write~int(#t~mem5, #t~post2.base, #t~post2.offset, 1); srcloc: L6'''''))
[2018-01-28 23:10:20,207 INFO  L544       PartitionManager]: partitioning result:
[2018-01-28 23:10:20,207 INFO  L549       PartitionManager]: 	 location blocks for array group [#memory_int]
[2018-01-28 23:10:20,207 INFO  L558       PartitionManager]: 	 at dimension 0
[2018-01-28 23:10:20,207 INFO  L559       PartitionManager]: 	 # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1
[2018-01-28 23:10:20,208 INFO  L560       PartitionManager]: 	 # location blocks :1
[2018-01-28 23:10:20,208 INFO  L558       PartitionManager]: 	 at dimension 1
[2018-01-28 23:10:20,208 INFO  L559       PartitionManager]: 	 # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1
[2018-01-28 23:10:20,208 INFO  L560       PartitionManager]: 	 # location blocks :1
[2018-01-28 23:10:20,209 INFO  L86    ransitionTransformer]: executing heap partitioning transformation
[2018-01-28 23:10:20,225 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 28.01 11:10:20 BasicIcfg
[2018-01-28 23:10:20,225 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2018-01-28 23:10:20,226 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-01-28 23:10:20,226 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2018-01-28 23:10:20,229 INFO  L276        PluginConnector]: TraceAbstraction initialized
[2018-01-28 23:10:20,230 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 11:10:09" (1/4) ...
[2018-01-28 23:10:20,231 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476e94d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 11:10:20, skipping insertion in model container
[2018-01-28 23:10:20,231 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:10:09" (2/4) ...
[2018-01-28 23:10:20,232 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476e94d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 11:10:20, skipping insertion in model container
[2018-01-28 23:10:20,232 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 11:10:10" (3/4) ...
[2018-01-28 23:10:20,232 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476e94d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 11:10:20, skipping insertion in model container
[2018-01-28 23:10:20,232 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 28.01 11:10:20" (4/4) ...
[2018-01-28 23:10:20,234 INFO  L107   eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg
[2018-01-28 23:10:20,244 INFO  L128   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-01-28 23:10:20,252 INFO  L140   ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations.
[2018-01-28 23:10:20,349 INFO  L322      AbstractCegarLoop]: Interprodecural is true
[2018-01-28 23:10:20,349 INFO  L323      AbstractCegarLoop]: Hoare is true
[2018-01-28 23:10:20,350 INFO  L324      AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-01-28 23:10:20,350 INFO  L325      AbstractCegarLoop]: Backedges is TWOTRACK
[2018-01-28 23:10:20,350 INFO  L326      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-01-28 23:10:20,350 INFO  L327      AbstractCegarLoop]: Difference is false
[2018-01-28 23:10:20,350 INFO  L328      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-01-28 23:10:20,350 INFO  L333      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-01-28 23:10:20,351 INFO  L87    2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure
[2018-01-28 23:10:20,364 INFO  L276                IsEmpty]: Start isEmpty. Operand 50 states.
[2018-01-28 23:10:20,369 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2018-01-28 23:10:20,369 INFO  L322         BasicCegarLoop]: Found error trace
[2018-01-28 23:10:20,370 INFO  L330         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2018-01-28 23:10:20,370 INFO  L371      AbstractCegarLoop]: === Iteration 1 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr0EnsuresViolation]===
[2018-01-28 23:10:20,373 INFO  L82        PathProgramCache]: Analyzing trace with hash 1058023317, now seen corresponding path program 1 times
[2018-01-28 23:10:20,374 INFO  L209   onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-01-28 23:10:20,375 INFO  L67    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-01-28 23:10:20,416 INFO  L117   rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-01-28 23:10:20,417 INFO  L101   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-01-28 23:10:20,417 INFO  L117   rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-01-28 23:10:20,444 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-01-28 23:10:20,452 WARN  L137   erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level).  Set option :produce-proofs to true to get complete proofs.
[2018-01-28 23:10:20,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-01-28 23:10:20,478 INFO  L320   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-01-28 23:10:20,478 INFO  L335   seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2018-01-28 23:10:20,480 INFO  L409      AbstractCegarLoop]: Interpolant automaton has 2 states
[2018-01-28 23:10:20,492 INFO  L132   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2018-01-28 23:10:20,492 INFO  L133   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2018-01-28 23:10:20,495 INFO  L87              Difference]: Start difference. First operand 50 states. Second operand 2 states.
[2018-01-28 23:10:20,520 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-01-28 23:10:20,521 INFO  L93              Difference]: Finished difference Result 77 states and 85 transitions.
[2018-01-28 23:10:20,521 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2018-01-28 23:10:20,522 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 8
[2018-01-28 23:10:20,523 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-01-28 23:10:20,534 INFO  L225             Difference]: With dead ends: 77
[2018-01-28 23:10:20,534 INFO  L226             Difference]: Without dead ends: 37
[2018-01-28 23:10:20,538 INFO  L533         BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2018-01-28 23:10:20,557 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2018-01-28 23:10:20,568 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2018-01-28 23:10:20,569 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 37 states.
[2018-01-28 23:10:20,570 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions.
[2018-01-28 23:10:20,571 INFO  L78                 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 8
[2018-01-28 23:10:20,572 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-01-28 23:10:20,572 INFO  L432      AbstractCegarLoop]: Abstraction has 37 states and 39 transitions.
[2018-01-28 23:10:20,572 INFO  L433      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2018-01-28 23:10:20,572 INFO  L276                IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions.
[2018-01-28 23:10:20,572 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2018-01-28 23:10:20,572 INFO  L322         BasicCegarLoop]: Found error trace
[2018-01-28 23:10:20,573 INFO  L330         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-01-28 23:10:20,573 INFO  L371      AbstractCegarLoop]: === Iteration 2 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr0EnsuresViolation]===
[2018-01-28 23:10:20,573 INFO  L82        PathProgramCache]: Analyzing trace with hash -1087666245, now seen corresponding path program 1 times
[2018-01-28 23:10:20,573 INFO  L209   onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-01-28 23:10:20,573 INFO  L67    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-01-28 23:10:20,574 INFO  L117   rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-01-28 23:10:20,574 INFO  L101   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-01-28 23:10:20,574 INFO  L117   rtionOrderModulation]: Craig nested/tree interpolation forces the following order
[2018-01-28 23:10:20,581 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-01-28 23:10:20,586 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-01-28 23:10:20,603 INFO  L389         BasicCegarLoop]: Counterexample might be feasible
[2018-01-28 23:10:20,607 INFO  L84    mationBacktranslator]: Skipped ATE [225] [225] ULTIMATE.startENTRY-->L1: Formula: true  InVars {}  OutVars{#NULL.offset=|v_#NULL.offset_2|, #NULL.base=|v_#NULL.base_2|, #valid=|v_#valid_9|}  AuxVars[]  AssignedVars[#valid, #NULL.offset, #NULL.base]
[2018-01-28 23:10:20,607 INFO  L84    mationBacktranslator]: Skipped ATE [231] [231] L1-->mainENTRY: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[]
[2018-01-28 23:10:20,607 INFO  L84    mationBacktranslator]: Skipped ATE [237] [237] mainENTRY-->L12: Formula: true  InVars {}  OutVars{main_~s1~2.base=v_main_~s1~2.base_1, main_~s1~2.offset=v_main_~s1~2.offset_1}  AuxVars[]  AssignedVars[main_~s1~2.offset, main_~s1~2.base]
[2018-01-28 23:10:20,607 INFO  L84    mationBacktranslator]: Skipped ATE [241] [241] L12-->L13: Formula: true  InVars {}  OutVars{main_~s2~2.base=v_main_~s2~2.base_1, main_~s2~2.offset=v_main_~s2~2.offset_1}  AuxVars[]  AssignedVars[main_~s2~2.offset, main_~s2~2.base]
[2018-01-28 23:10:20,607 INFO  L84    mationBacktranslator]: Skipped ATE [247] [247] L13-->cstrcatENTRY: Formula: (and (= |v_cstrcat_#in~s2.baseInParam_1| v_main_~s2~2.base_3) (= |v_cstrcat_#in~s2.offsetInParam_1| v_main_~s2~2.offset_3) (= |v_cstrcat_#in~s1.baseInParam_1| v_main_~s1~2.base_3) (= |v_cstrcat_#in~s1.offsetInParam_1| v_main_~s1~2.offset_3))  InVars {main_~s1~2.offset=v_main_~s1~2.offset_3, main_~s2~2.offset=v_main_~s2~2.offset_3, main_~s1~2.base=v_main_~s1~2.base_3, main_~s2~2.base=v_main_~s2~2.base_3}  OutVars{cstrcat_#in~s1.base=|v_cstrcat_#in~s1.baseInParam_1|, cstrcat_#in~s2.base=|v_cstrcat_#in~s2.baseInParam_1|, cstrcat_#in~s1.offset=|v_cstrcat_#in~s1.offsetInParam_1|, cstrcat_#in~s2.offset=|v_cstrcat_#in~s2.offsetInParam_1|}  AuxVars[]  AssignedVars[cstrcat_#in~s1.base, cstrcat_#in~s2.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.offset]
[2018-01-28 23:10:20,607 INFO  L84    mationBacktranslator]: Skipped ATE [251] [251] cstrcatENTRY-->L1: Formula: (and (= v_cstrcat_~s1.base_1 |v_cstrcat_#in~s1.base_1|) (= v_cstrcat_~s1.offset_1 |v_cstrcat_#in~s1.offset_1|))  InVars {cstrcat_#in~s1.offset=|v_cstrcat_#in~s1.offset_1|, cstrcat_#in~s1.base=|v_cstrcat_#in~s1.base_1|}  OutVars{cstrcat_~s1.offset=v_cstrcat_~s1.offset_1, cstrcat_#in~s1.base=|v_cstrcat_#in~s1.base_1|, cstrcat_#in~s1.offset=|v_cstrcat_#in~s1.offset_1|, cstrcat_~s1.base=v_cstrcat_~s1.base_1}  AuxVars[]  AssignedVars[cstrcat_~s1.offset, cstrcat_~s1.base]
[2018-01-28 23:10:20,607 INFO  L84    mationBacktranslator]: Skipped ATE [255] [255] L1-->L3: Formula: (and (= v_cstrcat_~s2.base_1 |v_cstrcat_#in~s2.base_1|) (= v_cstrcat_~s2.offset_1 |v_cstrcat_#in~s2.offset_1|))  InVars {cstrcat_#in~s2.offset=|v_cstrcat_#in~s2.offset_1|, cstrcat_#in~s2.base=|v_cstrcat_#in~s2.base_1|}  OutVars{cstrcat_~s2.offset=v_cstrcat_~s2.offset_1, cstrcat_#in~s2.base=|v_cstrcat_#in~s2.base_1|, cstrcat_#in~s2.offset=|v_cstrcat_#in~s2.offset_1|, cstrcat_~s2.base=v_cstrcat_~s2.base_1}  AuxVars[]  AssignedVars[cstrcat_~s2.base, cstrcat_~s2.offset]
[2018-01-28 23:10:20,608 INFO  L84    mationBacktranslator]: Skipped ATE [261] [261] L3-->L4''''': Formula: (and (= v_cstrcat_~s~1.base_1 v_cstrcat_~s1.base_2) (= v_cstrcat_~s~1.offset_1 v_cstrcat_~s1.offset_2))  InVars {cstrcat_~s1.offset=v_cstrcat_~s1.offset_2, cstrcat_~s1.base=v_cstrcat_~s1.base_2}  OutVars{cstrcat_~s1.offset=v_cstrcat_~s1.offset_2, cstrcat_~s~1.base=v_cstrcat_~s~1.base_1, cstrcat_~s1.base=v_cstrcat_~s1.base_2, cstrcat_~s~1.offset=v_cstrcat_~s~1.offset_1}  AuxVars[]  AssignedVars[cstrcat_~s~1.base, cstrcat_~s~1.offset]
[2018-01-28 23:10:20,608 INFO  L84    mationBacktranslator]: Skipped ATE [263] [263] L4'''''-->L4: Formula: true  InVars {}  OutVars{}  AuxVars[]  AssignedVars[]
[2018-01-28 23:10:20,608 INFO  L84    mationBacktranslator]: Skipped ATE [269] [269] L4-->cstrcatErr0RequiresViolation: Formula: (not (= 1 (select |v_#valid_4| v_cstrcat_~s~1.base_3)))  InVars {cstrcat_~s~1.base=v_cstrcat_~s~1.base_3, #valid=|v_#valid_4|}  OutVars{cstrcat_~s~1.base=v_cstrcat_~s~1.base_3, #valid=|v_#valid_4|}  AuxVars[]  AssignedVars[]
[2018-01-28 23:10:20,613 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 11:10:20 BasicIcfg
[2018-01-28 23:10:20,613 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2018-01-28 23:10:20,614 INFO  L168              Benchmark]: Toolchain (without parser) took 10844.70 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 961.0 MB). Free memory was 267.2 MB in the beginning and 1.2 GB in the end (delta: -960.6 MB). Peak memory consumption was 384.4 kB. Max. memory is 5.3 GB.
[2018-01-28 23:10:20,614 INFO  L168              Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 306.2 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 5.3 GB.
[2018-01-28 23:10:20,614 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 173.41 ms. Allocated memory is still 306.2 MB. Free memory was 267.2 MB in the beginning and 257.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB.
[2018-01-28 23:10:20,615 INFO  L168              Benchmark]: Boogie Preprocessor took 29.05 ms. Allocated memory is still 306.2 MB. Free memory is still 257.3 MB. There was no memory consumed. Max. memory is 5.3 GB.
[2018-01-28 23:10:20,615 INFO  L168              Benchmark]: RCFGBuilder took 241.16 ms. Allocated memory is still 306.2 MB. Free memory was 257.3 MB in the beginning and 240.7 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 5.3 GB.
[2018-01-28 23:10:20,615 INFO  L168              Benchmark]: IcfgTransformer took 10007.11 ms. Allocated memory was 306.2 MB in the beginning and 1.1 GB in the end (delta: 766.5 MB). Free memory was 240.7 MB in the beginning and 852.0 MB in the end (delta: -611.3 MB). Peak memory consumption was 155.2 MB. Max. memory is 5.3 GB.
[2018-01-28 23:10:20,615 INFO  L168              Benchmark]: TraceAbstraction took 387.19 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 194.5 MB). Free memory was 852.0 MB in the beginning and 1.2 GB in the end (delta: -375.9 MB). There was no memory consumed. Max. memory is 5.3 GB.
[2018-01-28 23:10:20,617 INFO  L344   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.17 ms. Allocated memory is still 306.2 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 5.3 GB.
 * CACSL2BoogieTranslator took 173.41 ms. Allocated memory is still 306.2 MB. Free memory was 267.2 MB in the beginning and 257.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB.
 * Boogie Preprocessor took 29.05 ms. Allocated memory is still 306.2 MB. Free memory is still 257.3 MB. There was no memory consumed. Max. memory is 5.3 GB.
 * RCFGBuilder took 241.16 ms. Allocated memory is still 306.2 MB. Free memory was 257.3 MB in the beginning and 240.7 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 5.3 GB.
 * IcfgTransformer took 10007.11 ms. Allocated memory was 306.2 MB in the beginning and 1.1 GB in the end (delta: 766.5 MB). Free memory was 240.7 MB in the beginning and 852.0 MB in the end (delta: -611.3 MB). Peak memory consumption was 155.2 MB. Max. memory is 5.3 GB.
 * TraceAbstraction took 387.19 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 194.5 MB). Free memory was 852.0 MB in the beginning and 1.2 GB in the end (delta: -375.9 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                               :      47 
LocStat_MAX_WEQGRAPH_SIZE                :       1 
LocStat_MAX_SIZEOF_WEQEDGELABEL          :       1 
LocStat_NO_SUPPORTING_EQUALITIES         :     380 
LocStat_NO_SUPPORTING_DISEQUALITIES      :      16 
LocStat_NO_DISJUNCTIONS                  :     -94 
LocStat_MAX_NO_DISJUNCTIONS              :      -1 
#Transitions                             :      65 
TransStat_MAX_WEQGRAPH_SIZE              :       2 
TransStat_MAX_SIZEOF_WEQEDGELABEL        :       1 
TransStat_NO_SUPPORTING_EQUALITIES       :      66 
TransStat_NO_SUPPORTING_DISEQUALITIES    :       5 
TransStat_NO_DISJUNCTIONS                :      65 
TransStat_MAX_NO_DISJUNCTIONS            :       2 

  - StatisticsResult: EqConstraintFactoryStatistics
    
CONJOIN_DISJUNCTIVE(MILLISECONDS)        : 4.327694 
RENAME_VARIABLES(MILLISECONDS)           : 0.733430 
UNFREEZE(MILLISECONDS)                   : 0.000000 
CONJOIN(MILLISECONDS)                    : 2.128514 
PROJECTAWAY(MILLISECONDS)                : 0.111133 
ADD_WEAK_EQUALITY(MILLISECONDS)          : 0.116593 
DISJOIN(MILLISECONDS)                    : 0.227443 
RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.761951 
ADD_EQUALITY(MILLISECONDS)               : 0.019106 
DISJOIN_DISJUNCTIVE(MILLISECONDS)        : 0.000000 
ADD_DISEQUALITY(MILLISECONDS)            : 0.013982 
#CONJOIN_DISJUNCTIVE                     :     343 
#RENAME_VARIABLES                        :     694 
#UNFREEZE                                :       0 
#CONJOIN                                 :     422 
#PROJECTAWAY                             :     431 
#ADD_WEAK_EQUALITY                       :       3 
#DISJOIN                                 :      74 
#RENAME_VARIABLES_DISJUNCTIVE            :     682 
#ADD_EQUALITY                            :      67 
#DISJOIN_DISJUNCTIVE                     :       0 
#ADD_DISEQUALITY                         :       5 

 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation:
  - StatisticsResult: HeapSeparatorStatistics
    
COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0                                    :       1 
COUNT_BLOCKS_for_[#memory_int]_at_dim_0                                          :       1 
COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1                                    :       1 
COUNT_BLOCKS_for_[#memory_int]_at_dim_1                                          :       1 
COUNT_ARRAY_READS for [#memory_int]                                              :       3 

 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 1]: pointer dereference may fail
    pointer dereference may fail
We found a FailurePath: 

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 50 locations, 7 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcat_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-28_23-10-20-625.csv
Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcat_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-28_23-10-20-625.csv
Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcat_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-28_23-10-20-625.csv
Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcat_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-28_23-10-20-625.csv
Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcat_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-28_23-10-20-625.csv
Received shutdown request...