java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-data/packet_filter.i


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


This is Ultimate 0.1.24-fea9116
[2019-09-20 13:03:06,440 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-20 13:03:06,443 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-20 13:03:06,464 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-20 13:03:06,464 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-20 13:03:06,466 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-20 13:03:06,468 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-20 13:03:06,478 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-20 13:03:06,479 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-20 13:03:06,480 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-20 13:03:06,481 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-20 13:03:06,482 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-20 13:03:06,483 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-20 13:03:06,484 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-20 13:03:06,485 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-20 13:03:06,486 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-20 13:03:06,486 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-20 13:03:06,487 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-20 13:03:06,489 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-20 13:03:06,491 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-20 13:03:06,492 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-20 13:03:06,493 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-20 13:03:06,494 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-20 13:03:06,495 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-20 13:03:06,497 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-20 13:03:06,497 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-20 13:03:06,497 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-20 13:03:06,498 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-20 13:03:06,499 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-20 13:03:06,500 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-20 13:03:06,501 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-09-20 13:03:06,503 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-09-20 13:03:06,504 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-20 13:03:06,505 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-20 13:03:06,506 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-20 13:03:06,506 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2019-09-20 13:03:06,507 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-20 13:03:06,511 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-20 13:03:06,515 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-09-20 13:03:06,546 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-20 13:03:06,546 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-20 13:03:06,548 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-20 13:03:06,548 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-20 13:03:06,548 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-20 13:03:06,548 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-20 13:03:06,549 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-20 13:03:06,549 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-20 13:03:06,549 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-20 13:03:06,549 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-20 13:03:06,549 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-20 13:03:06,550 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-20 13:03:06,550 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-20 13:03:06,550 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-20 13:03:06,550 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-20 13:03:06,550 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-20 13:03:06,551 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-20 13:03:06,551 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-20 13:03:06,551 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-20 13:03:06,551 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-20 13:03:06,551 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-20 13:03:06,551 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-20 13:03:06,552 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-20 13:03:06,552 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-20 13:03:06,552 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-20 13:03:06,552 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-20 13:03:06,553 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-20 13:03:06,553 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-20 13:03:06,553 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-20 13:03:06,587 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-20 13:03:06,598 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-20 13:03:06,602 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-20 13:03:06,603 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-20 13:03:06,603 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-20 13:03:06,604 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/packet_filter.i
[2019-09-20 13:03:06,671 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3397b243b/86d0e50f87e243dca38891a9eaf7f1a2/FLAGfa185588b
[2019-09-20 13:03:07,185 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-20 13:03:07,186 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/packet_filter.i
[2019-09-20 13:03:07,207 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3397b243b/86d0e50f87e243dca38891a9eaf7f1a2/FLAGfa185588b
[2019-09-20 13:03:07,495 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3397b243b/86d0e50f87e243dca38891a9eaf7f1a2
[2019-09-20 13:03:07,506 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-20 13:03:07,508 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-20 13:03:07,509 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-20 13:03:07,509 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-20 13:03:07,512 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-20 13:03:07,513 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:03:07" (1/1) ...
[2019-09-20 13:03:07,516 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73961d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:07, skipping insertion in model container
[2019-09-20 13:03:07,517 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:03:07" (1/1) ...
[2019-09-20 13:03:07,524 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-20 13:03:07,579 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-20 13:03:08,050 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-20 13:03:08,061 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-20 13:03:08,137 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-20 13:03:08,200 INFO  L192         MainTranslator]: Completed translation
[2019-09-20 13:03:08,201 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08 WrapperNode
[2019-09-20 13:03:08,201 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-20 13:03:08,202 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-20 13:03:08,202 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-20 13:03:08,203 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-20 13:03:08,216 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ...
[2019-09-20 13:03:08,217 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ...
[2019-09-20 13:03:08,243 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ...
[2019-09-20 13:03:08,243 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ...
[2019-09-20 13:03:08,270 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ...
[2019-09-20 13:03:08,276 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ...
[2019-09-20 13:03:08,280 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ...
[2019-09-20 13:03:08,287 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-20 13:03:08,288 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-20 13:03:08,288 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-20 13:03:08,288 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-20 13:03:08,289 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ...
No working directory specified, using /storage/repos/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
[2019-09-20 13:03:08,340 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-20 13:03:08,340 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-20 13:03:08,340 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_32
[2019-09-20 13:03:08,340 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_64
[2019-09-20 13:03:08,341 INFO  L138     BoogieDeclarations]: Found implementation of procedure receive
[2019-09-20 13:03:08,341 INFO  L138     BoogieDeclarations]: Found implementation of procedure send
[2019-09-20 13:03:08,341 INFO  L138     BoogieDeclarations]: Found implementation of procedure append_to_queue
[2019-09-20 13:03:08,341 INFO  L138     BoogieDeclarations]: Found implementation of procedure process_prio_queue
[2019-09-20 13:03:08,341 INFO  L138     BoogieDeclarations]: Found implementation of procedure process_normal_queue
[2019-09-20 13:03:08,342 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-20 13:03:08,342 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2019-09-20 13:03:08,342 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-20 13:03:08,342 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_charp
[2019-09-20 13:03:08,342 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-20 13:03:08,342 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_32
[2019-09-20 13:03:08,343 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_64
[2019-09-20 13:03:08,343 INFO  L130     BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2019-09-20 13:03:08,343 INFO  L130     BoogieDeclarations]: Found specification of procedure atof
[2019-09-20 13:03:08,343 INFO  L130     BoogieDeclarations]: Found specification of procedure atoi
[2019-09-20 13:03:08,343 INFO  L130     BoogieDeclarations]: Found specification of procedure atol
[2019-09-20 13:03:08,344 INFO  L130     BoogieDeclarations]: Found specification of procedure atoll
[2019-09-20 13:03:08,344 INFO  L130     BoogieDeclarations]: Found specification of procedure strtod
[2019-09-20 13:03:08,344 INFO  L130     BoogieDeclarations]: Found specification of procedure strtof
[2019-09-20 13:03:08,344 INFO  L130     BoogieDeclarations]: Found specification of procedure strtold
[2019-09-20 13:03:08,344 INFO  L130     BoogieDeclarations]: Found specification of procedure strtol
[2019-09-20 13:03:08,344 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoul
[2019-09-20 13:03:08,345 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoq
[2019-09-20 13:03:08,345 INFO  L130     BoogieDeclarations]: Found specification of procedure strtouq
[2019-09-20 13:03:08,345 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoll
[2019-09-20 13:03:08,345 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoull
[2019-09-20 13:03:08,345 INFO  L130     BoogieDeclarations]: Found specification of procedure l64a
[2019-09-20 13:03:08,345 INFO  L130     BoogieDeclarations]: Found specification of procedure a64l
[2019-09-20 13:03:08,346 INFO  L130     BoogieDeclarations]: Found specification of procedure select
[2019-09-20 13:03:08,346 INFO  L130     BoogieDeclarations]: Found specification of procedure pselect
[2019-09-20 13:03:08,346 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2019-09-20 13:03:08,346 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2019-09-20 13:03:08,346 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2019-09-20 13:03:08,346 INFO  L130     BoogieDeclarations]: Found specification of procedure random
[2019-09-20 13:03:08,347 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom
[2019-09-20 13:03:08,347 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate
[2019-09-20 13:03:08,347 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate
[2019-09-20 13:03:08,347 INFO  L130     BoogieDeclarations]: Found specification of procedure random_r
[2019-09-20 13:03:08,347 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom_r
[2019-09-20 13:03:08,347 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate_r
[2019-09-20 13:03:08,348 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate_r
[2019-09-20 13:03:08,348 INFO  L130     BoogieDeclarations]: Found specification of procedure rand
[2019-09-20 13:03:08,348 INFO  L130     BoogieDeclarations]: Found specification of procedure srand
[2019-09-20 13:03:08,348 INFO  L130     BoogieDeclarations]: Found specification of procedure rand_r
[2019-09-20 13:03:08,348 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48
[2019-09-20 13:03:08,348 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48
[2019-09-20 13:03:08,349 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48
[2019-09-20 13:03:08,349 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48
[2019-09-20 13:03:08,349 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48
[2019-09-20 13:03:08,349 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48
[2019-09-20 13:03:08,349 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48
[2019-09-20 13:03:08,349 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48
[2019-09-20 13:03:08,349 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48
[2019-09-20 13:03:08,350 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48_r
[2019-09-20 13:03:08,350 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48_r
[2019-09-20 13:03:08,350 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48_r
[2019-09-20 13:03:08,350 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48_r
[2019-09-20 13:03:08,350 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48_r
[2019-09-20 13:03:08,350 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48_r
[2019-09-20 13:03:08,351 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48_r
[2019-09-20 13:03:08,351 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48_r
[2019-09-20 13:03:08,351 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48_r
[2019-09-20 13:03:08,351 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2019-09-20 13:03:08,351 INFO  L130     BoogieDeclarations]: Found specification of procedure calloc
[2019-09-20 13:03:08,351 INFO  L130     BoogieDeclarations]: Found specification of procedure realloc
[2019-09-20 13:03:08,351 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2019-09-20 13:03:08,352 INFO  L130     BoogieDeclarations]: Found specification of procedure cfree
[2019-09-20 13:03:08,352 INFO  L130     BoogieDeclarations]: Found specification of procedure alloca
[2019-09-20 13:03:08,352 INFO  L130     BoogieDeclarations]: Found specification of procedure valloc
[2019-09-20 13:03:08,352 INFO  L130     BoogieDeclarations]: Found specification of procedure posix_memalign
[2019-09-20 13:03:08,352 INFO  L130     BoogieDeclarations]: Found specification of procedure aligned_alloc
[2019-09-20 13:03:08,352 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2019-09-20 13:03:08,352 INFO  L130     BoogieDeclarations]: Found specification of procedure atexit
[2019-09-20 13:03:08,353 INFO  L130     BoogieDeclarations]: Found specification of procedure at_quick_exit
[2019-09-20 13:03:08,353 INFO  L130     BoogieDeclarations]: Found specification of procedure on_exit
[2019-09-20 13:03:08,353 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-20 13:03:08,353 INFO  L130     BoogieDeclarations]: Found specification of procedure quick_exit
[2019-09-20 13:03:08,353 INFO  L130     BoogieDeclarations]: Found specification of procedure _Exit
[2019-09-20 13:03:08,353 INFO  L130     BoogieDeclarations]: Found specification of procedure getenv
[2019-09-20 13:03:08,354 INFO  L130     BoogieDeclarations]: Found specification of procedure putenv
[2019-09-20 13:03:08,354 INFO  L130     BoogieDeclarations]: Found specification of procedure setenv
[2019-09-20 13:03:08,354 INFO  L130     BoogieDeclarations]: Found specification of procedure unsetenv
[2019-09-20 13:03:08,354 INFO  L130     BoogieDeclarations]: Found specification of procedure clearenv
[2019-09-20 13:03:08,354 INFO  L130     BoogieDeclarations]: Found specification of procedure mktemp
[2019-09-20 13:03:08,354 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemp
[2019-09-20 13:03:08,354 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemps
[2019-09-20 13:03:08,355 INFO  L130     BoogieDeclarations]: Found specification of procedure mkdtemp
[2019-09-20 13:03:08,355 INFO  L130     BoogieDeclarations]: Found specification of procedure system
[2019-09-20 13:03:08,355 INFO  L130     BoogieDeclarations]: Found specification of procedure realpath
[2019-09-20 13:03:08,355 INFO  L130     BoogieDeclarations]: Found specification of procedure bsearch
[2019-09-20 13:03:08,355 INFO  L130     BoogieDeclarations]: Found specification of procedure qsort
[2019-09-20 13:03:08,355 INFO  L130     BoogieDeclarations]: Found specification of procedure abs
[2019-09-20 13:03:08,356 INFO  L130     BoogieDeclarations]: Found specification of procedure labs
[2019-09-20 13:03:08,356 INFO  L130     BoogieDeclarations]: Found specification of procedure llabs
[2019-09-20 13:03:08,356 INFO  L130     BoogieDeclarations]: Found specification of procedure div
[2019-09-20 13:03:08,356 INFO  L130     BoogieDeclarations]: Found specification of procedure ldiv
[2019-09-20 13:03:08,356 INFO  L130     BoogieDeclarations]: Found specification of procedure lldiv
[2019-09-20 13:03:08,356 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt
[2019-09-20 13:03:08,356 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt
[2019-09-20 13:03:08,357 INFO  L130     BoogieDeclarations]: Found specification of procedure gcvt
[2019-09-20 13:03:08,357 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt
[2019-09-20 13:03:08,357 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt
[2019-09-20 13:03:08,357 INFO  L130     BoogieDeclarations]: Found specification of procedure qgcvt
[2019-09-20 13:03:08,357 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt_r
[2019-09-20 13:03:08,357 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt_r
[2019-09-20 13:03:08,357 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt_r
[2019-09-20 13:03:08,358 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt_r
[2019-09-20 13:03:08,358 INFO  L130     BoogieDeclarations]: Found specification of procedure mblen
[2019-09-20 13:03:08,358 INFO  L130     BoogieDeclarations]: Found specification of procedure mbtowc
[2019-09-20 13:03:08,358 INFO  L130     BoogieDeclarations]: Found specification of procedure wctomb
[2019-09-20 13:03:08,358 INFO  L130     BoogieDeclarations]: Found specification of procedure mbstowcs
[2019-09-20 13:03:08,358 INFO  L130     BoogieDeclarations]: Found specification of procedure wcstombs
[2019-09-20 13:03:08,358 INFO  L130     BoogieDeclarations]: Found specification of procedure rpmatch
[2019-09-20 13:03:08,359 INFO  L130     BoogieDeclarations]: Found specification of procedure getsubopt
[2019-09-20 13:03:08,359 INFO  L130     BoogieDeclarations]: Found specification of procedure getloadavg
[2019-09-20 13:03:08,359 INFO  L130     BoogieDeclarations]: Found specification of procedure receive
[2019-09-20 13:03:08,359 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-09-20 13:03:08,359 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2019-09-20 13:03:08,359 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2019-09-20 13:03:08,360 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2019-09-20 13:03:08,360 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2019-09-20 13:03:08,360 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-09-20 13:03:08,360 INFO  L130     BoogieDeclarations]: Found specification of procedure send
[2019-09-20 13:03:08,360 INFO  L130     BoogieDeclarations]: Found specification of procedure append_to_queue
[2019-09-20 13:03:08,360 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2019-09-20 13:03:08,361 INFO  L130     BoogieDeclarations]: Found specification of procedure process_prio_queue
[2019-09-20 13:03:08,361 INFO  L130     BoogieDeclarations]: Found specification of procedure process_normal_queue
[2019-09-20 13:03:08,361 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-20 13:03:08,361 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2019-09-20 13:03:08,361 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2019-09-20 13:03:08,361 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-20 13:03:08,361 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-20 13:03:09,116 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-20 13:03:09,116 INFO  L283             CfgBuilder]: Removed 3 assume(true) statements.
[2019-09-20 13:03:09,118 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:03:09 BoogieIcfgContainer
[2019-09-20 13:03:09,118 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-20 13:03:09,119 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-20 13:03:09,119 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-20 13:03:09,123 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-20 13:03:09,123 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:03:07" (1/3) ...
[2019-09-20 13:03:09,124 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b731dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:03:09, skipping insertion in model container
[2019-09-20 13:03:09,124 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (2/3) ...
[2019-09-20 13:03:09,125 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b731dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:03:09, skipping insertion in model container
[2019-09-20 13:03:09,125 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:03:09" (3/3) ...
[2019-09-20 13:03:09,127 INFO  L109   eAbstractionObserver]: Analyzing ICFG packet_filter.i
[2019-09-20 13:03:09,137 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-20 13:03:09,145 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations.
[2019-09-20 13:03:09,161 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2019-09-20 13:03:09,186 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-20 13:03:09,187 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-20 13:03:09,187 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-20 13:03:09,187 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-20 13:03:09,187 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-20 13:03:09,188 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-20 13:03:09,188 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-20 13:03:09,188 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-20 13:03:09,188 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-20 13:03:09,204 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states.
[2019-09-20 13:03:09,209 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2019-09-20 13:03:09,210 INFO  L399         BasicCegarLoop]: Found error trace
[2019-09-20 13:03:09,210 INFO  L407         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-09-20 13:03:09,212 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [process_prio_queueErr0ASSERT_VIOLATIONERROR_FUNCTION, process_normal_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-20 13:03:09,217 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-20 13:03:09,217 INFO  L82        PathProgramCache]: Analyzing trace with hash -1068933411, now seen corresponding path program 1 times
[2019-09-20 13:03:09,219 INFO  L224   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-20 13:03:09,220 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-20 13:03:09,282 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-20 13:03:09,283 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-20 13:03:09,283 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-20 13:03:09,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-20 13:03:09,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-20 13:03:09,372 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-20 13:03:09,373 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-09-20 13:03:09,377 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-09-20 13:03:09,388 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-09-20 13:03:09,388 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-09-20 13:03:09,390 INFO  L87              Difference]: Start difference. First operand 64 states. Second operand 2 states.
[2019-09-20 13:03:09,418 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-20 13:03:09,418 INFO  L93              Difference]: Finished difference Result 100 states and 126 transitions.
[2019-09-20 13:03:09,418 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2019-09-20 13:03:09,420 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 14
[2019-09-20 13:03:09,420 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-20 13:03:09,430 INFO  L225             Difference]: With dead ends: 100
[2019-09-20 13:03:09,431 INFO  L226             Difference]: Without dead ends: 57
[2019-09-20 13:03:09,434 INFO  L636         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-09-20 13:03:09,453 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2019-09-20 13:03:09,479 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57.
[2019-09-20 13:03:09,481 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 57 states.
[2019-09-20 13:03:09,483 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions.
[2019-09-20 13:03:09,484 INFO  L78                 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 14
[2019-09-20 13:03:09,484 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-20 13:03:09,484 INFO  L475      AbstractCegarLoop]: Abstraction has 57 states and 68 transitions.
[2019-09-20 13:03:09,485 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-09-20 13:03:09,485 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions.
[2019-09-20 13:03:09,485 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2019-09-20 13:03:09,485 INFO  L399         BasicCegarLoop]: Found error trace
[2019-09-20 13:03:09,486 INFO  L407         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-09-20 13:03:09,486 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [process_prio_queueErr0ASSERT_VIOLATIONERROR_FUNCTION, process_normal_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-20 13:03:09,486 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-20 13:03:09,486 INFO  L82        PathProgramCache]: Analyzing trace with hash -1316192133, now seen corresponding path program 1 times
[2019-09-20 13:03:09,487 INFO  L224   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-20 13:03:09,487 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-20 13:03:09,492 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-20 13:03:09,492 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-20 13:03:09,492 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-20 13:03:09,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-20 13:03:09,616 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-20 13:03:09,617 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-20 13:03:09,617 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-20 13:03:09,618 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-20 13:03:09,619 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-20 13:03:09,619 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-20 13:03:09,619 INFO  L87              Difference]: Start difference. First operand 57 states and 68 transitions. Second operand 3 states.
[2019-09-20 13:03:09,641 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-20 13:03:09,641 INFO  L93              Difference]: Finished difference Result 60 states and 71 transitions.
[2019-09-20 13:03:09,642 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-20 13:03:09,642 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 15
[2019-09-20 13:03:09,642 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-20 13:03:09,644 INFO  L225             Difference]: With dead ends: 60
[2019-09-20 13:03:09,644 INFO  L226             Difference]: Without dead ends: 58
[2019-09-20 13:03:09,645 INFO  L636         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-20 13:03:09,645 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2019-09-20 13:03:09,653 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58.
[2019-09-20 13:03:09,653 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 58 states.
[2019-09-20 13:03:09,655 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions.
[2019-09-20 13:03:09,655 INFO  L78                 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 15
[2019-09-20 13:03:09,655 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-20 13:03:09,655 INFO  L475      AbstractCegarLoop]: Abstraction has 58 states and 69 transitions.
[2019-09-20 13:03:09,655 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-20 13:03:09,656 INFO  L276                IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions.
[2019-09-20 13:03:09,656 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2019-09-20 13:03:09,656 INFO  L399         BasicCegarLoop]: Found error trace
[2019-09-20 13:03:09,657 INFO  L407         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-09-20 13:03:09,657 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [process_prio_queueErr0ASSERT_VIOLATIONERROR_FUNCTION, process_normal_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-20 13:03:09,657 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-20 13:03:09,657 INFO  L82        PathProgramCache]: Analyzing trace with hash -1316190211, now seen corresponding path program 1 times
[2019-09-20 13:03:09,657 INFO  L224   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-20 13:03:09,658 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-20 13:03:09,662 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-20 13:03:09,662 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-20 13:03:09,662 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-20 13:03:09,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-20 13:03:09,791 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-20 13:03:09,791 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-20 13:03:09,791 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-20 13:03:09,792 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-20 13:03:09,792 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-20 13:03:09,792 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2019-09-20 13:03:09,792 INFO  L87              Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 6 states.
[2019-09-20 13:03:09,940 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-20 13:03:09,940 INFO  L93              Difference]: Finished difference Result 95 states and 113 transitions.
[2019-09-20 13:03:09,941 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2019-09-20 13:03:09,941 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 15
[2019-09-20 13:03:09,941 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-20 13:03:09,944 INFO  L225             Difference]: With dead ends: 95
[2019-09-20 13:03:09,944 INFO  L226             Difference]: Without dead ends: 68
[2019-09-20 13:03:09,945 INFO  L636         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2019-09-20 13:03:09,945 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2019-09-20 13:03:09,955 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66.
[2019-09-20 13:03:09,955 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 66 states.
[2019-09-20 13:03:09,957 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions.
[2019-09-20 13:03:09,957 INFO  L78                 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 15
[2019-09-20 13:03:09,957 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-20 13:03:09,958 INFO  L475      AbstractCegarLoop]: Abstraction has 66 states and 78 transitions.
[2019-09-20 13:03:09,958 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-20 13:03:09,958 INFO  L276                IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions.
[2019-09-20 13:03:09,959 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2019-09-20 13:03:09,959 INFO  L399         BasicCegarLoop]: Found error trace
[2019-09-20 13:03:09,959 INFO  L407         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-09-20 13:03:09,959 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [process_prio_queueErr0ASSERT_VIOLATIONERROR_FUNCTION, process_normal_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-20 13:03:09,960 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-20 13:03:09,960 INFO  L82        PathProgramCache]: Analyzing trace with hash -1729106577, now seen corresponding path program 1 times
[2019-09-20 13:03:09,960 INFO  L224   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-20 13:03:09,960 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-20 13:03:09,964 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-20 13:03:09,964 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-20 13:03:09,965 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-20 13:03:09,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-20 13:03:10,156 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-20 13:03:10,157 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-20 13:03:10,157 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2019-09-20 13:03:10,157 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-09-20 13:03:10,158 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-09-20 13:03:10,158 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2019-09-20 13:03:10,159 INFO  L87              Difference]: Start difference. First operand 66 states and 78 transitions. Second operand 7 states.
[2019-09-20 13:03:10,648 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-20 13:03:10,649 INFO  L93              Difference]: Finished difference Result 100 states and 119 transitions.
[2019-09-20 13:03:10,649 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-20 13:03:10,649 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 21
[2019-09-20 13:03:10,650 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-20 13:03:10,651 INFO  L225             Difference]: With dead ends: 100
[2019-09-20 13:03:10,651 INFO  L226             Difference]: Without dead ends: 78
[2019-09-20 13:03:10,652 INFO  L636         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110
[2019-09-20 13:03:10,653 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2019-09-20 13:03:10,669 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 60.
[2019-09-20 13:03:10,669 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 60 states.
[2019-09-20 13:03:10,674 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions.
[2019-09-20 13:03:10,675 INFO  L78                 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 21
[2019-09-20 13:03:10,675 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-20 13:03:10,675 INFO  L475      AbstractCegarLoop]: Abstraction has 60 states and 71 transitions.
[2019-09-20 13:03:10,675 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2019-09-20 13:03:10,675 INFO  L276                IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions.
[2019-09-20 13:03:10,677 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2019-09-20 13:03:10,677 INFO  L399         BasicCegarLoop]: Found error trace
[2019-09-20 13:03:10,677 INFO  L407         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-09-20 13:03:10,677 INFO  L418      AbstractCegarLoop]: === Iteration 5 === [process_prio_queueErr0ASSERT_VIOLATIONERROR_FUNCTION, process_normal_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-20 13:03:10,678 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-20 13:03:10,678 INFO  L82        PathProgramCache]: Analyzing trace with hash 453892566, now seen corresponding path program 1 times
[2019-09-20 13:03:10,678 INFO  L224   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-20 13:03:10,678 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-20 13:03:10,685 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-20 13:03:10,685 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-20 13:03:10,685 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-20 13:03:10,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-20 13:03:11,147 WARN  L191               SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 51
[2019-09-20 13:03:11,228 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-20 13:03:11,228 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-20 13:03:11,228 INFO  L224   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2019-09-20 13:03:11,352 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-20 13:03:11,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-20 13:03:11,393 INFO  L256         TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 41 conjunts are in the unsatisfiable core
[2019-09-20 13:03:11,406 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-20 13:03:11,537 INFO  L341             Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2019-09-20 13:03:11,538 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18
[2019-09-20 13:03:11,538 INFO  L496         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:11,569 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:11,570 INFO  L496         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:11,570 INFO  L221         ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29
[2019-09-20 13:03:11,761 INFO  L341             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:11,761 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 69
[2019-09-20 13:03:11,763 INFO  L496         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:11,847 INFO  L567         ElimStorePlain]: treesize reduction 28, result has 60.0 percent of original size
[2019-09-20 13:03:11,849 INFO  L496         ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars,  End of recursive call: 2 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:11,849 INFO  L221         ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:42
[2019-09-20 13:03:12,030 INFO  L496         ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:12,065 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:12,070 INFO  L496         ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:12,096 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:12,100 INFO  L496         ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:12,120 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:12,123 INFO  L496         ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:12,136 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:12,137 INFO  L496         ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars,  End of recursive call: 8 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:12,138 INFO  L221         ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:100, output treesize:48
[2019-09-20 13:03:16,279 INFO  L341             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:16,280 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 37
[2019-09-20 13:03:16,282 INFO  L496         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:16,319 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:16,337 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2019-09-20 13:03:16,338 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2019-09-20 13:03:16,339 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2019-09-20 13:03:16,342 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 36
[2019-09-20 13:03:16,343 INFO  L496         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:16,375 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:16,394 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2019-09-20 13:03:16,395 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2019-09-20 13:03:16,396 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2019-09-20 13:03:16,400 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 36
[2019-09-20 13:03:16,400 INFO  L496         ElimStorePlain]: Start of recursive call 4:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:16,447 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:16,450 INFO  L496         ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:16,450 INFO  L221         ElimStorePlain]: Needed 4 recursive calls to eliminate 13 variables, input treesize:89, output treesize:15
[2019-09-20 13:03:16,460 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2019-09-20 13:03:16,461 INFO  L496         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:16,469 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:16,472 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2019-09-20 13:03:16,473 INFO  L496         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:16,477 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:16,477 INFO  L496         ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:16,478 INFO  L221         ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7
[2019-09-20 13:03:16,491 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-20 13:03:16,496 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2019-09-20 13:03:16,496 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 14
[2019-09-20 13:03:16,496 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 14 states
[2019-09-20 13:03:16,497 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2019-09-20 13:03:16,497 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=144, Unknown=2, NotChecked=0, Total=182
[2019-09-20 13:03:16,497 INFO  L87              Difference]: Start difference. First operand 60 states and 71 transitions. Second operand 14 states.
[2019-09-20 13:03:20,796 WARN  L191               SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 70
[2019-09-20 13:03:27,108 WARN  L191               SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 77
[2019-09-20 13:03:48,274 WARN  L191               SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 55
[2019-09-20 13:03:48,608 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-20 13:03:48,609 INFO  L93              Difference]: Finished difference Result 145 states and 180 transitions.
[2019-09-20 13:03:48,611 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2019-09-20 13:03:48,611 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states. Word has length 26
[2019-09-20 13:03:48,611 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-20 13:03:48,612 INFO  L225             Difference]: With dead ends: 145
[2019-09-20 13:03:48,613 INFO  L226             Difference]: Without dead ends: 118
[2019-09-20 13:03:48,614 INFO  L636         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=78, Invalid=337, Unknown=5, NotChecked=0, Total=420
[2019-09-20 13:03:48,615 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 118 states.
[2019-09-20 13:03:48,630 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 72.
[2019-09-20 13:03:48,630 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 72 states.
[2019-09-20 13:03:48,631 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions.
[2019-09-20 13:03:48,632 INFO  L78                 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 26
[2019-09-20 13:03:48,632 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-20 13:03:48,632 INFO  L475      AbstractCegarLoop]: Abstraction has 72 states and 86 transitions.
[2019-09-20 13:03:48,632 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 14 states.
[2019-09-20 13:03:48,633 INFO  L276                IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions.
[2019-09-20 13:03:48,634 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2019-09-20 13:03:48,634 INFO  L399         BasicCegarLoop]: Found error trace
[2019-09-20 13:03:48,634 INFO  L407         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-09-20 13:03:48,634 INFO  L418      AbstractCegarLoop]: === Iteration 6 === [process_prio_queueErr0ASSERT_VIOLATIONERROR_FUNCTION, process_normal_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-20 13:03:48,635 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-20 13:03:48,635 INFO  L82        PathProgramCache]: Analyzing trace with hash -845629304, now seen corresponding path program 1 times
[2019-09-20 13:03:48,635 INFO  L224   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-20 13:03:48,635 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-20 13:03:48,647 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-20 13:03:48,648 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-20 13:03:48,648 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-20 13:03:48,687 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-20 13:03:49,034 WARN  L191               SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 51
[2019-09-20 13:03:49,123 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-20 13:03:49,123 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-20 13:03:49,123 INFO  L224   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2019-09-20 13:03:49,202 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-20 13:03:49,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-20 13:03:49,240 INFO  L256         TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 41 conjunts are in the unsatisfiable core
[2019-09-20 13:03:49,244 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-20 13:03:49,258 INFO  L341             Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2019-09-20 13:03:49,259 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11
[2019-09-20 13:03:49,259 INFO  L496         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:49,267 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:49,268 INFO  L496         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:49,268 INFO  L221         ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25
[2019-09-20 13:03:49,289 INFO  L341             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:49,290 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28
[2019-09-20 13:03:49,291 INFO  L496         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:49,314 INFO  L567         ElimStorePlain]: treesize reduction 14, result has 64.1 percent of original size
[2019-09-20 13:03:49,315 INFO  L496         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:49,315 INFO  L221         ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:25
[2019-09-20 13:03:49,368 INFO  L496         ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:49,399 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:49,404 INFO  L496         ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:49,431 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:49,434 INFO  L496         ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:49,472 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:49,475 INFO  L496         ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:49,486 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:49,487 INFO  L496         ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars,  End of recursive call: 8 dim-0 vars,  and 1 xjuncts.
[2019-09-20 13:03:49,488 INFO  L221         ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:100, output treesize:48
[2019-09-20 13:03:53,588 INFO  L341             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:53,589 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15
[2019-09-20 13:03:53,589 INFO  L496         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:53,609 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:53,616 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2019-09-20 13:03:53,617 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2019-09-20 13:03:53,618 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2019-09-20 13:03:53,621 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 36
[2019-09-20 13:03:53,621 INFO  L496         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:53,641 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:53,647 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2019-09-20 13:03:53,649 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2019-09-20 13:03:53,650 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2019-09-20 13:03:53,652 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 36
[2019-09-20 13:03:53,653 INFO  L496         ElimStorePlain]: Start of recursive call 4:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:53,675 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:53,676 INFO  L496         ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:53,676 INFO  L221         ElimStorePlain]: Needed 4 recursive calls to eliminate 11 variables, input treesize:67, output treesize:15
[2019-09-20 13:03:53,707 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2019-09-20 13:03:53,708 INFO  L496         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:53,715 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:53,718 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2019-09-20 13:03:53,718 INFO  L496         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:53,723 INFO  L567         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2019-09-20 13:03:53,723 INFO  L496         ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2019-09-20 13:03:53,723 INFO  L221         ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7
[2019-09-20 13:03:53,730 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-20 13:03:53,739 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2019-09-20 13:03:53,740 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 14
[2019-09-20 13:03:53,740 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 14 states
[2019-09-20 13:03:53,741 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2019-09-20 13:03:53,741 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=145, Unknown=2, NotChecked=0, Total=182
[2019-09-20 13:03:53,741 INFO  L87              Difference]: Start difference. First operand 72 states and 86 transitions. Second operand 14 states.