/usr/bin/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-1.i


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


This is Ultimate 0.1.25-72570d3
[2020-08-22 22:16:44,408 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-08-22 22:16:44,411 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-22 22:16:44,439 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-22 22:16:44,440 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-22 22:16:44,441 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-22 22:16:44,442 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-22 22:16:44,444 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-22 22:16:44,446 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-22 22:16:44,447 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-22 22:16:44,450 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-08-22 22:16:44,452 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-08-22 22:16:44,452 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-22 22:16:44,456 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-22 22:16:44,457 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-22 22:16:44,458 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-22 22:16:44,460 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-22 22:16:44,462 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-22 22:16:44,466 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-22 22:16:44,469 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-22 22:16:44,472 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-22 22:16:44,476 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-22 22:16:44,477 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-08-22 22:16:44,478 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-22 22:16:44,484 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-22 22:16:44,484 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-22 22:16:44,484 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-22 22:16:44,485 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-22 22:16:44,488 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-22 22:16:44,489 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-22 22:16:44,490 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-22 22:16:44,490 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-22 22:16:44,496 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-22 22:16:44,497 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-08-22 22:16:44,498 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-22 22:16:44,498 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-08-22 22:16:44,503 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-08-22 22:16:44,504 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-08-22 22:16:44,509 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-08-22 22:16:44,525 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-08-22 22:16:44,528 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-22 22:16:44,530 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-22 22:16:44,531 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-08-22 22:16:44,531 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-08-22 22:16:44,531 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-08-22 22:16:44,531 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-08-22 22:16:44,532 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-08-22 22:16:44,532 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-22 22:16:44,532 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-08-22 22:16:44,533 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-08-22 22:16:44,533 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-08-22 22:16:44,533 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-08-22 22:16:44,534 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-08-22 22:16:44,534 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-22 22:16:44,534 INFO  L138        SettingsManager]:  * Size of a code block=SingleStatement
[2020-08-22 22:16:44,534 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-08-22 22:16:44,535 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-08-22 22:16:44,535 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-22 22:16:44,535 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-22 22:16:44,535 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-08-22 22:16:44,535 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-22 22:16:44,536 INFO  L138        SettingsManager]:  * Use separate solver for trace checks=false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true
[2020-08-22 22:16:44,877 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-22 22:16:44,893 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-22 22:16:44,897 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-22 22:16:44,898 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-08-22 22:16:44,899 INFO  L275        PluginConnector]: CDTParser initialized
[2020-08-22 22:16:44,900 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-1.i
[2020-08-22 22:16:44,983 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcfb1bba5/da1b389794ac4bd6a6585243374243fe/FLAGd29df91c2
[2020-08-22 22:16:45,614 INFO  L306              CDTParser]: Found 1 translation units.
[2020-08-22 22:16:45,615 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-1.i
[2020-08-22 22:16:45,632 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcfb1bba5/da1b389794ac4bd6a6585243374243fe/FLAGd29df91c2
[2020-08-22 22:16:45,896 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcfb1bba5/da1b389794ac4bd6a6585243374243fe
[2020-08-22 22:16:45,910 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-22 22:16:45,912 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-22 22:16:45,913 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-22 22:16:45,914 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-22 22:16:45,918 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-22 22:16:45,919 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:16:45" (1/1) ...
[2020-08-22 22:16:45,923 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407cd36d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:16:45, skipping insertion in model container
[2020-08-22 22:16:45,923 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:16:45" (1/1) ...
[2020-08-22 22:16:45,932 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-08-22 22:16:45,983 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-08-22 22:16:46,475 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-22 22:16:46,485 INFO  L203         MainTranslator]: Completed pre-run
[2020-08-22 22:16:46,565 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-22 22:16:46,636 INFO  L208         MainTranslator]: Completed translation
[2020-08-22 22:16:46,637 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:16:46 WrapperNode
[2020-08-22 22:16:46,638 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-22 22:16:46,639 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-22 22:16:46,640 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-22 22:16:46,640 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-08-22 22:16:46,656 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:16:46" (1/1) ...
[2020-08-22 22:16:46,657 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:16:46" (1/1) ...
[2020-08-22 22:16:46,679 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:16:46" (1/1) ...
[2020-08-22 22:16:46,679 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:16:46" (1/1) ...
[2020-08-22 22:16:46,710 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:16:46" (1/1) ...
[2020-08-22 22:16:46,732 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:16:46" (1/1) ...
[2020-08-22 22:16:46,740 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:16:46" (1/1) ...
[2020-08-22 22:16:46,755 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-22 22:16:46,756 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-22 22:16:46,756 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-08-22 22:16:46,756 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-08-22 22:16:46,757 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:16:46" (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
[2020-08-22 22:16:46,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-22 22:16:46,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-22 22:16:46,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_32
[2020-08-22 22:16:46,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_64
[2020-08-22 22:16:46,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure fail
[2020-08-22 22:16:46,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure alloc_node
[2020-08-22 22:16:46,837 INFO  L138     BoogieDeclarations]: Found implementation of procedure chain_node
[2020-08-22 22:16:46,838 INFO  L138     BoogieDeclarations]: Found implementation of procedure create_sll
[2020-08-22 22:16:46,838 INFO  L138     BoogieDeclarations]: Found implementation of procedure init_back_link
[2020-08-22 22:16:46,838 INFO  L138     BoogieDeclarations]: Found implementation of procedure reverse_dll
[2020-08-22 22:16:46,838 INFO  L138     BoogieDeclarations]: Found implementation of procedure remove_fw_link
[2020-08-22 22:16:46,839 INFO  L138     BoogieDeclarations]: Found implementation of procedure check_seq_next
[2020-08-22 22:16:46,840 INFO  L138     BoogieDeclarations]: Found implementation of procedure check_seq_prev
[2020-08-22 22:16:46,840 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-08-22 22:16:46,841 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-22 22:16:46,841 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_32
[2020-08-22 22:16:46,841 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_64
[2020-08-22 22:16:46,842 INFO  L130     BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2020-08-22 22:16:46,842 INFO  L130     BoogieDeclarations]: Found specification of procedure atof
[2020-08-22 22:16:46,843 INFO  L130     BoogieDeclarations]: Found specification of procedure atoi
[2020-08-22 22:16:46,843 INFO  L130     BoogieDeclarations]: Found specification of procedure atol
[2020-08-22 22:16:46,843 INFO  L130     BoogieDeclarations]: Found specification of procedure atoll
[2020-08-22 22:16:46,846 INFO  L130     BoogieDeclarations]: Found specification of procedure strtod
[2020-08-22 22:16:46,846 INFO  L130     BoogieDeclarations]: Found specification of procedure strtof
[2020-08-22 22:16:46,846 INFO  L130     BoogieDeclarations]: Found specification of procedure strtold
[2020-08-22 22:16:46,847 INFO  L130     BoogieDeclarations]: Found specification of procedure strtol
[2020-08-22 22:16:46,847 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoul
[2020-08-22 22:16:46,848 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoq
[2020-08-22 22:16:46,848 INFO  L130     BoogieDeclarations]: Found specification of procedure strtouq
[2020-08-22 22:16:46,848 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoll
[2020-08-22 22:16:46,848 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoull
[2020-08-22 22:16:46,848 INFO  L130     BoogieDeclarations]: Found specification of procedure l64a
[2020-08-22 22:16:46,850 INFO  L130     BoogieDeclarations]: Found specification of procedure a64l
[2020-08-22 22:16:46,850 INFO  L130     BoogieDeclarations]: Found specification of procedure select
[2020-08-22 22:16:46,850 INFO  L130     BoogieDeclarations]: Found specification of procedure pselect
[2020-08-22 22:16:46,850 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2020-08-22 22:16:46,850 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2020-08-22 22:16:46,851 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2020-08-22 22:16:46,851 INFO  L130     BoogieDeclarations]: Found specification of procedure random
[2020-08-22 22:16:46,851 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom
[2020-08-22 22:16:46,851 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate
[2020-08-22 22:16:46,851 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate
[2020-08-22 22:16:46,851 INFO  L130     BoogieDeclarations]: Found specification of procedure random_r
[2020-08-22 22:16:46,851 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom_r
[2020-08-22 22:16:46,852 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate_r
[2020-08-22 22:16:46,852 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate_r
[2020-08-22 22:16:46,852 INFO  L130     BoogieDeclarations]: Found specification of procedure rand
[2020-08-22 22:16:46,852 INFO  L130     BoogieDeclarations]: Found specification of procedure srand
[2020-08-22 22:16:46,853 INFO  L130     BoogieDeclarations]: Found specification of procedure rand_r
[2020-08-22 22:16:46,853 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48
[2020-08-22 22:16:46,853 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48
[2020-08-22 22:16:46,853 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48
[2020-08-22 22:16:46,853 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48
[2020-08-22 22:16:46,853 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48
[2020-08-22 22:16:46,854 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48
[2020-08-22 22:16:46,854 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48
[2020-08-22 22:16:46,854 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48
[2020-08-22 22:16:46,854 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48
[2020-08-22 22:16:46,854 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48_r
[2020-08-22 22:16:46,854 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48_r
[2020-08-22 22:16:46,854 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48_r
[2020-08-22 22:16:46,855 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48_r
[2020-08-22 22:16:46,855 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48_r
[2020-08-22 22:16:46,855 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48_r
[2020-08-22 22:16:46,855 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48_r
[2020-08-22 22:16:46,855 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48_r
[2020-08-22 22:16:46,855 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48_r
[2020-08-22 22:16:46,856 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-08-22 22:16:46,856 INFO  L130     BoogieDeclarations]: Found specification of procedure calloc
[2020-08-22 22:16:46,856 INFO  L130     BoogieDeclarations]: Found specification of procedure realloc
[2020-08-22 22:16:46,856 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-08-22 22:16:46,856 INFO  L130     BoogieDeclarations]: Found specification of procedure cfree
[2020-08-22 22:16:46,856 INFO  L130     BoogieDeclarations]: Found specification of procedure alloca
[2020-08-22 22:16:46,857 INFO  L130     BoogieDeclarations]: Found specification of procedure valloc
[2020-08-22 22:16:46,857 INFO  L130     BoogieDeclarations]: Found specification of procedure posix_memalign
[2020-08-22 22:16:46,857 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-08-22 22:16:46,857 INFO  L130     BoogieDeclarations]: Found specification of procedure atexit
[2020-08-22 22:16:46,857 INFO  L130     BoogieDeclarations]: Found specification of procedure on_exit
[2020-08-22 22:16:46,857 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-08-22 22:16:46,857 INFO  L130     BoogieDeclarations]: Found specification of procedure _Exit
[2020-08-22 22:16:46,858 INFO  L130     BoogieDeclarations]: Found specification of procedure getenv
[2020-08-22 22:16:46,858 INFO  L130     BoogieDeclarations]: Found specification of procedure putenv
[2020-08-22 22:16:46,858 INFO  L130     BoogieDeclarations]: Found specification of procedure setenv
[2020-08-22 22:16:46,858 INFO  L130     BoogieDeclarations]: Found specification of procedure unsetenv
[2020-08-22 22:16:46,858 INFO  L130     BoogieDeclarations]: Found specification of procedure clearenv
[2020-08-22 22:16:46,858 INFO  L130     BoogieDeclarations]: Found specification of procedure mktemp
[2020-08-22 22:16:46,859 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemp
[2020-08-22 22:16:46,859 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemps
[2020-08-22 22:16:46,859 INFO  L130     BoogieDeclarations]: Found specification of procedure mkdtemp
[2020-08-22 22:16:46,859 INFO  L130     BoogieDeclarations]: Found specification of procedure system
[2020-08-22 22:16:46,859 INFO  L130     BoogieDeclarations]: Found specification of procedure realpath
[2020-08-22 22:16:46,859 INFO  L130     BoogieDeclarations]: Found specification of procedure bsearch
[2020-08-22 22:16:46,860 INFO  L130     BoogieDeclarations]: Found specification of procedure qsort
[2020-08-22 22:16:46,860 INFO  L130     BoogieDeclarations]: Found specification of procedure abs
[2020-08-22 22:16:46,860 INFO  L130     BoogieDeclarations]: Found specification of procedure labs
[2020-08-22 22:16:46,860 INFO  L130     BoogieDeclarations]: Found specification of procedure llabs
[2020-08-22 22:16:46,860 INFO  L130     BoogieDeclarations]: Found specification of procedure div
[2020-08-22 22:16:46,860 INFO  L130     BoogieDeclarations]: Found specification of procedure ldiv
[2020-08-22 22:16:46,861 INFO  L130     BoogieDeclarations]: Found specification of procedure lldiv
[2020-08-22 22:16:46,861 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt
[2020-08-22 22:16:46,861 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt
[2020-08-22 22:16:46,861 INFO  L130     BoogieDeclarations]: Found specification of procedure gcvt
[2020-08-22 22:16:46,861 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt
[2020-08-22 22:16:46,861 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt
[2020-08-22 22:16:46,861 INFO  L130     BoogieDeclarations]: Found specification of procedure qgcvt
[2020-08-22 22:16:46,861 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt_r
[2020-08-22 22:16:46,862 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt_r
[2020-08-22 22:16:46,862 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt_r
[2020-08-22 22:16:46,862 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt_r
[2020-08-22 22:16:46,862 INFO  L130     BoogieDeclarations]: Found specification of procedure mblen
[2020-08-22 22:16:46,862 INFO  L130     BoogieDeclarations]: Found specification of procedure mbtowc
[2020-08-22 22:16:46,862 INFO  L130     BoogieDeclarations]: Found specification of procedure wctomb
[2020-08-22 22:16:46,862 INFO  L130     BoogieDeclarations]: Found specification of procedure mbstowcs
[2020-08-22 22:16:46,862 INFO  L130     BoogieDeclarations]: Found specification of procedure wcstombs
[2020-08-22 22:16:46,862 INFO  L130     BoogieDeclarations]: Found specification of procedure rpmatch
[2020-08-22 22:16:46,862 INFO  L130     BoogieDeclarations]: Found specification of procedure getsubopt
[2020-08-22 22:16:46,863 INFO  L130     BoogieDeclarations]: Found specification of procedure getloadavg
[2020-08-22 22:16:46,863 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-08-22 22:16:46,863 INFO  L130     BoogieDeclarations]: Found specification of procedure fail
[2020-08-22 22:16:46,863 INFO  L130     BoogieDeclarations]: Found specification of procedure alloc_node
[2020-08-22 22:16:46,863 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-08-22 22:16:46,863 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-08-22 22:16:46,864 INFO  L130     BoogieDeclarations]: Found specification of procedure chain_node
[2020-08-22 22:16:46,864 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-08-22 22:16:46,864 INFO  L130     BoogieDeclarations]: Found specification of procedure create_sll
[2020-08-22 22:16:46,864 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-08-22 22:16:46,865 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2020-08-22 22:16:46,865 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-08-22 22:16:46,865 INFO  L130     BoogieDeclarations]: Found specification of procedure init_back_link
[2020-08-22 22:16:46,866 INFO  L130     BoogieDeclarations]: Found specification of procedure reverse_dll
[2020-08-22 22:16:46,866 INFO  L130     BoogieDeclarations]: Found specification of procedure remove_fw_link
[2020-08-22 22:16:46,866 INFO  L130     BoogieDeclarations]: Found specification of procedure check_seq_next
[2020-08-22 22:16:46,866 INFO  L130     BoogieDeclarations]: Found specification of procedure check_seq_prev
[2020-08-22 22:16:46,866 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-08-22 22:16:46,867 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-22 22:16:46,867 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-22 22:16:47,790 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-22 22:16:47,791 INFO  L295             CfgBuilder]: Removed 33 assume(true) statements.
[2020-08-22 22:16:47,797 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:16:47 BoogieIcfgContainer
[2020-08-22 22:16:47,797 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-22 22:16:47,798 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-22 22:16:47,799 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-08-22 22:16:47,802 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-08-22 22:16:47,802 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:16:45" (1/3) ...
[2020-08-22 22:16:47,803 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b1444d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:16:47, skipping insertion in model container
[2020-08-22 22:16:47,804 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:16:46" (2/3) ...
[2020-08-22 22:16:47,804 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b1444d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:16:47, skipping insertion in model container
[2020-08-22 22:16:47,804 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:16:47" (3/3) ...
[2020-08-22 22:16:47,806 INFO  L109   eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev-1.i
[2020-08-22 22:16:47,818 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-22 22:16:47,827 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-22 22:16:47,863 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-22 22:16:47,886 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-08-22 22:16:47,887 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-08-22 22:16:47,887 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-22 22:16:47,887 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-22 22:16:47,887 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-22 22:16:47,887 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-08-22 22:16:47,887 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-22 22:16:47,888 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-22 22:16:47,908 INFO  L276                IsEmpty]: Start isEmpty. Operand 208 states.
[2020-08-22 22:16:47,920 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-08-22 22:16:47,920 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 22:16:47,922 INFO  L422         BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 22:16:47,922 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 22:16:47,929 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 22:16:47,929 INFO  L82        PathProgramCache]: Analyzing trace with hash 2069327278, now seen corresponding path program 1 times
[2020-08-22 22:16:47,938 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 22:16:47,939 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585723679]
[2020-08-22 22:16:47,939 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 22:16:48,064 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:48,138 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 22:16:48,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:48,164 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-22 22:16:48,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:48,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 22:16:48,196 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585723679]
[2020-08-22 22:16:48,198 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 22:16:48,199 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-08-22 22:16:48,200 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355072994]
[2020-08-22 22:16:48,206 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-08-22 22:16:48,206 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 22:16:48,221 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-08-22 22:16:48,222 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-08-22 22:16:48,225 INFO  L87              Difference]: Start difference. First operand 208 states. Second operand 4 states.
[2020-08-22 22:16:48,707 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 22:16:48,707 INFO  L93              Difference]: Finished difference Result 423 states and 572 transitions.
[2020-08-22 22:16:48,708 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-08-22 22:16:48,710 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 41
[2020-08-22 22:16:48,710 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 22:16:48,725 INFO  L225             Difference]: With dead ends: 423
[2020-08-22 22:16:48,725 INFO  L226             Difference]: Without dead ends: 211
[2020-08-22 22:16:48,732 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-08-22 22:16:48,752 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 211 states.
[2020-08-22 22:16:48,803 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 188.
[2020-08-22 22:16:48,805 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 188 states.
[2020-08-22 22:16:48,808 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 208 transitions.
[2020-08-22 22:16:48,810 INFO  L78                 Accepts]: Start accepts. Automaton has 188 states and 208 transitions. Word has length 41
[2020-08-22 22:16:48,810 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 22:16:48,810 INFO  L479      AbstractCegarLoop]: Abstraction has 188 states and 208 transitions.
[2020-08-22 22:16:48,811 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-08-22 22:16:48,811 INFO  L276                IsEmpty]: Start isEmpty. Operand 188 states and 208 transitions.
[2020-08-22 22:16:48,815 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2020-08-22 22:16:48,815 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 22:16:48,815 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 22:16:48,816 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-22 22:16:48,816 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 22:16:48,816 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 22:16:48,816 INFO  L82        PathProgramCache]: Analyzing trace with hash 2121642840, now seen corresponding path program 1 times
[2020-08-22 22:16:48,817 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 22:16:48,817 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136733372]
[2020-08-22 22:16:48,817 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 22:16:48,988 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:49,214 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 22:16:49,216 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:49,239 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-22 22:16:49,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:49,637 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2020-08-22 22:16:49,651 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:49,797 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-08-22 22:16:49,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:49,880 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35
[2020-08-22 22:16:49,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:50,969 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-08-22 22:16:50,982 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:51,598 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-08-22 22:16:51,599 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136733372]
[2020-08-22 22:16:51,599 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-08-22 22:16:51,599 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34
[2020-08-22 22:16:51,599 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097344123]
[2020-08-22 22:16:51,602 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 34 states
[2020-08-22 22:16:51,602 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 22:16:51,602 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2020-08-22 22:16:51,603 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1036, Unknown=0, NotChecked=0, Total=1122
[2020-08-22 22:16:51,604 INFO  L87              Difference]: Start difference. First operand 188 states and 208 transitions. Second operand 34 states.
[2020-08-22 22:16:57,573 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 22:16:57,574 INFO  L93              Difference]: Finished difference Result 263 states and 298 transitions.
[2020-08-22 22:16:57,574 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2020-08-22 22:16:57,574 INFO  L78                 Accepts]: Start accepts. Automaton has 34 states. Word has length 85
[2020-08-22 22:16:57,575 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 22:16:57,579 INFO  L225             Difference]: With dead ends: 263
[2020-08-22 22:16:57,579 INFO  L226             Difference]: Without dead ends: 260
[2020-08-22 22:16:57,582 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=248, Invalid=3058, Unknown=0, NotChecked=0, Total=3306
[2020-08-22 22:16:57,583 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 260 states.
[2020-08-22 22:16:57,622 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 205.
[2020-08-22 22:16:57,623 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 205 states.
[2020-08-22 22:16:57,624 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 227 transitions.
[2020-08-22 22:16:57,625 INFO  L78                 Accepts]: Start accepts. Automaton has 205 states and 227 transitions. Word has length 85
[2020-08-22 22:16:57,625 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 22:16:57,626 INFO  L479      AbstractCegarLoop]: Abstraction has 205 states and 227 transitions.
[2020-08-22 22:16:57,626 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 34 states.
[2020-08-22 22:16:57,626 INFO  L276                IsEmpty]: Start isEmpty. Operand 205 states and 227 transitions.
[2020-08-22 22:16:57,629 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 88
[2020-08-22 22:16:57,629 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 22:16:57,629 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 22:16:57,630 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-08-22 22:16:57,630 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 22:16:57,630 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 22:16:57,630 INFO  L82        PathProgramCache]: Analyzing trace with hash -1210442558, now seen corresponding path program 1 times
[2020-08-22 22:16:57,631 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 22:16:57,631 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963905593]
[2020-08-22 22:16:57,631 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 22:16:57,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:57,804 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 22:16:57,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:57,829 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-22 22:16:57,862 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:58,339 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2020-08-22 22:16:58,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:58,510 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-08-22 22:16:58,514 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:58,597 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35
[2020-08-22 22:16:58,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:59,536 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-08-22 22:16:59,543 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 22:16:59,995 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-08-22 22:16:59,996 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963905593]
[2020-08-22 22:16:59,996 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-08-22 22:16:59,996 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34
[2020-08-22 22:16:59,996 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996466631]
[2020-08-22 22:16:59,997 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 34 states
[2020-08-22 22:16:59,997 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 22:16:59,998 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2020-08-22 22:16:59,998 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1041, Unknown=0, NotChecked=0, Total=1122
[2020-08-22 22:16:59,999 INFO  L87              Difference]: Start difference. First operand 205 states and 227 transitions. Second operand 34 states.
[2020-08-22 22:17:06,797 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 22:17:06,797 INFO  L93              Difference]: Finished difference Result 273 states and 311 transitions.
[2020-08-22 22:17:06,798 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2020-08-22 22:17:06,798 INFO  L78                 Accepts]: Start accepts. Automaton has 34 states. Word has length 87
[2020-08-22 22:17:06,799 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 22:17:06,803 INFO  L225             Difference]: With dead ends: 273
[2020-08-22 22:17:06,803 INFO  L226             Difference]: Without dead ends: 270
[2020-08-22 22:17:06,807 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=283, Invalid=3499, Unknown=0, NotChecked=0, Total=3782
[2020-08-22 22:17:06,808 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 270 states.
[2020-08-22 22:17:06,841 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 205.
[2020-08-22 22:17:06,842 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 205 states.
[2020-08-22 22:17:06,843 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 226 transitions.
[2020-08-22 22:17:06,844 INFO  L78                 Accepts]: Start accepts. Automaton has 205 states and 226 transitions. Word has length 87
[2020-08-22 22:17:06,844 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 22:17:06,845 INFO  L479      AbstractCegarLoop]: Abstraction has 205 states and 226 transitions.
[2020-08-22 22:17:06,845 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 34 states.
[2020-08-22 22:17:06,845 INFO  L276                IsEmpty]: Start isEmpty. Operand 205 states and 226 transitions.
[2020-08-22 22:17:06,846 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 94
[2020-08-22 22:17:06,847 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 22:17:06,847 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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]
[2020-08-22 22:17:06,847 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-08-22 22:17:06,847 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 22:17:06,848 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 22:17:06,848 INFO  L82        PathProgramCache]: Analyzing trace with hash 2145368719, now seen corresponding path program 1 times
[2020-08-22 22:17:06,848 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 22:17:06,849 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914372749]
[2020-08-22 22:17:06,849 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 22:17:06,882 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-22 22:17:06,882 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-08-22 22:17:06,910 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-22 22:17:06,911 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-08-22 22:17:06,952 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-08-22 22:17:06,953 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-08-22 22:17:06,953 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-08-22 22:17:07,016 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 10:17:07 BoogieIcfgContainer
[2020-08-22 22:17:07,016 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-22 22:17:07,019 INFO  L168              Benchmark]: Toolchain (without parser) took 21106.65 ms. Allocated memory was 137.4 MB in the beginning and 433.6 MB in the end (delta: 296.2 MB). Free memory was 99.6 MB in the beginning and 299.0 MB in the end (delta: -199.4 MB). Peak memory consumption was 96.9 MB. Max. memory is 7.1 GB.
[2020-08-22 22:17:07,020 INFO  L168              Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
[2020-08-22 22:17:07,021 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 724.83 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 99.4 MB in the beginning and 165.0 MB in the end (delta: -65.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB.
[2020-08-22 22:17:07,022 INFO  L168              Benchmark]: Boogie Preprocessor took 115.60 ms. Allocated memory is still 201.9 MB. Free memory was 165.0 MB in the beginning and 161.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB.
[2020-08-22 22:17:07,023 INFO  L168              Benchmark]: RCFGBuilder took 1041.57 ms. Allocated memory is still 201.9 MB. Free memory was 161.6 MB in the beginning and 88.6 MB in the end (delta: 73.1 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB.
[2020-08-22 22:17:07,024 INFO  L168              Benchmark]: TraceAbstraction took 19217.60 ms. Allocated memory was 201.9 MB in the beginning and 433.6 MB in the end (delta: 231.7 MB). Free memory was 88.6 MB in the beginning and 299.0 MB in the end (delta: -210.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB.
[2020-08-22 22:17:07,028 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 724.83 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 99.4 MB in the beginning and 165.0 MB in the end (delta: -65.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 115.60 ms. Allocated memory is still 201.9 MB. Free memory was 165.0 MB in the beginning and 161.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1041.57 ms. Allocated memory is still 201.9 MB. Free memory was 161.6 MB in the beginning and 88.6 MB in the end (delta: 73.1 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19217.60 ms. Allocated memory was 201.9 MB in the beginning and 433.6 MB in the end (delta: 231.7 MB). Free memory was 88.6 MB in the beginning and 299.0 MB in the end (delta: -210.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 554]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L628]              const struct node *p1, *p2;
        VAL         [p1={6:0}, p2={7:0}]
[L629]  CALL, EXPR  create_sll(&p1, &p2)
        VAL         [pp1={6:0}, pp2={7:0}]
[L577]              struct node *list = ((void *)0);
        VAL         [list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L579]  CALL        chain_node(&list)
        VAL         [ppnode={5:0}]
[L571]  CALL, EXPR  alloc_node()
[L562]              struct node *ptr = malloc(sizeof *ptr);
        VAL         [malloc(sizeof *ptr)={-1:0}, ptr={-1:0}]
[L563]  COND FALSE  !(!ptr)
        VAL         [malloc(sizeof *ptr)={-1:0}, ptr={-1:0}]
[L565]              ptr->next = ((void *)0)
        VAL         [malloc(sizeof *ptr)={-1:0}, ptr={-1:0}]
[L566]              ptr->prev = ((void *)0)
        VAL         [malloc(sizeof *ptr)={-1:0}, ptr={-1:0}]
[L567]              return ptr;
        VAL         [\result={-1:0}, malloc(sizeof *ptr)={-1:0}, ptr={-1:0}]
[L571]  RET, EXPR   alloc_node()
        VAL         [alloc_node()={-1:0}, ppnode={5:0}, ppnode={5:0}]
[L571]              struct node *node = alloc_node();
        VAL         [alloc_node()={-1:0}, node={-1:0}, ppnode={5:0}, ppnode={5:0}]
[L572]  EXPR        \read(**ppnode)
        VAL         [\read(**ppnode)={0:0}, node={-1:0}, ppnode={5:0}, ppnode={5:0}]
[L572]              node->next = *ppnode
        VAL         [\read(**ppnode)={0:0}, node={-1:0}, ppnode={5:0}, ppnode={5:0}]
[L573]              *ppnode = node
        VAL         [node={-1:0}, ppnode={5:0}, ppnode={5:0}]
[L579]  RET         chain_node(&list)
        VAL         [list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L580]  COND FALSE  !(__VERIFIER_nondet_int())
        VAL         [__VERIFIER_nondet_int()=0, list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L581]  EXPR        \read(*list)
        VAL         [\read(*list)={-1:0}, list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L581]              *pp2 = list
        VAL         [\read(*list)={-1:0}, list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L582]  COND FALSE  !(__VERIFIER_nondet_int())
        VAL         [__VERIFIER_nondet_int()=0, list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L584]  EXPR        \read(*list)
        VAL         [\read(*list)={-1:0}, list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L584]              *pp1 = list
        VAL         [\read(*list)={-1:0}, list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L586]  CALL        chain_node(&list)
        VAL         [ppnode={5:0}]
[L571]  CALL, EXPR  alloc_node()
[L562]              struct node *ptr = malloc(sizeof *ptr);
        VAL         [malloc(sizeof *ptr)={3:0}, ptr={3:0}]
[L563]  COND FALSE  !(!ptr)
        VAL         [malloc(sizeof *ptr)={3:0}, ptr={3:0}]
[L565]              ptr->next = ((void *)0)
        VAL         [malloc(sizeof *ptr)={3:0}, ptr={3:0}]
[L566]              ptr->prev = ((void *)0)
        VAL         [malloc(sizeof *ptr)={3:0}, ptr={3:0}]
[L567]              return ptr;
        VAL         [\result={3:0}, malloc(sizeof *ptr)={3:0}, ptr={3:0}]
[L571]  RET, EXPR   alloc_node()
        VAL         [alloc_node()={3:0}, ppnode={5:0}, ppnode={5:0}]
[L571]              struct node *node = alloc_node();
        VAL         [alloc_node()={3:0}, node={3:0}, ppnode={5:0}, ppnode={5:0}]
[L572]  EXPR        \read(**ppnode)
        VAL         [\read(**ppnode)={-1:0}, node={3:0}, ppnode={5:0}, ppnode={5:0}]
[L572]              node->next = *ppnode
        VAL         [\read(**ppnode)={-1:0}, node={3:0}, ppnode={5:0}, ppnode={5:0}]
[L573]              *ppnode = node
        VAL         [node={3:0}, ppnode={5:0}, ppnode={5:0}]
[L586]  RET         chain_node(&list)
        VAL         [list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L587]  COND FALSE  !(__VERIFIER_nondet_int())
        VAL         [__VERIFIER_nondet_int()=0, list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L588]  EXPR        \read(*list)
        VAL         [\read(*list)={3:0}, list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L588]              return list;
        VAL         [\read(*list)={3:0}, \result={3:0}, list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L577]              struct node *list = ((void *)0);
        VAL         [\result={3:0}, list={5:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L588]              return list;
        VAL         [\result={3:0}, pp1={6:0}, pp1={6:0}, pp2={7:0}, pp2={7:0}]
[L629]  RET, EXPR   create_sll(&p1, &p2)
        VAL         [create_sll(&p1, &p2)={3:0}, p1={6:0}, p2={7:0}]
[L629]              struct node *list = create_sll(&p1, &p2);
        VAL         [create_sll(&p1, &p2)={3:0}, list={3:0}, p1={6:0}, p2={7:0}]
[L631]  EXPR        \read(*p1)
        VAL         [\read(*p1)={-1:0}, list={3:0}, p1={6:0}, p2={7:0}]
[L631]  EXPR        \read(*p2)
        VAL         [\read(*p1)={-1:0}, \read(*p2)={-1:0}, list={3:0}, p1={6:0}, p2={7:0}]
[L631]  CALL        check_seq_next(p1, p2)
        VAL         [beg={-1:0}, end={-1:0}]
[L615]  COND FALSE  !(!(beg))
        VAL         [beg={-1:0}, beg={-1:0}, end={-1:0}, end={-1:0}]
[L616]  COND FALSE  !(!(end))
        VAL         [beg={-1:0}, beg={-1:0}, end={-1:0}, end={-1:0}]
[L617]  EXPR        beg->next
        VAL         [beg={-1:0}, beg={-1:0}, beg->next={0:0}, end={-1:0}, end={-1:0}]
[L617]              beg = beg->next
        VAL         [beg={-1:0}, beg={0:0}, beg->next={0:0}, end={-1:0}, end={-1:0}]
[L617]  COND TRUE   end != beg
        VAL         [beg={0:0}, beg={-1:0}, end={-1:0}, end={-1:0}]
[L618]  COND TRUE   !(beg)
        VAL         [beg={0:0}, beg={-1:0}, end={-1:0}, end={-1:0}]
[L618]  CALL        fail()
[L554]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 14 procedures, 218 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.0s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 13.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 526 SDtfs, 1037 SDslu, 3142 SDs, 0 SdLazy, 7959 SolverSat, 324 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 143 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 632976 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 11/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...