/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-ext3-properties/sll_length_check-1.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-72570d3
[2020-08-22 16:48:35,786 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-08-22 16:48:35,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-22 16:48:35,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-22 16:48:35,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-22 16:48:35,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-22 16:48:35,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-22 16:48:35,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-22 16:48:35,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-22 16:48:35,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-22 16:48:35,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-08-22 16:48:35,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-08-22 16:48:35,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-22 16:48:35,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-22 16:48:35,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-22 16:48:35,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-22 16:48:35,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-22 16:48:35,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-22 16:48:35,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-22 16:48:35,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-22 16:48:35,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-22 16:48:35,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-22 16:48:35,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-08-22 16:48:35,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-22 16:48:35,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-22 16:48:35,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-22 16:48:35,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-22 16:48:35,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-22 16:48:35,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-22 16:48:35,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-22 16:48:35,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-22 16:48:35,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-22 16:48:35,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-22 16:48:35,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-08-22 16:48:35,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-22 16:48:35,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-08-22 16:48:35,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-08-22 16:48:35,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-08-22 16:48:35,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-08-22 16:48:35,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-08-22 16:48:35,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-08-22 16:48:35,848 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
[2020-08-22 16:48:35,871 INFO L113 SettingsManager]: Loading preferences was successful
[2020-08-22 16:48:35,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-22 16:48:35,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-08-22 16:48:35,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-08-22 16:48:35,873 INFO L138 SettingsManager]: * Use SBE=true
[2020-08-22 16:48:35,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-22 16:48:35,873 INFO L138 SettingsManager]: * sizeof long=4
[2020-08-22 16:48:35,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-08-22 16:48:35,874 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-08-22 16:48:35,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-08-22 16:48:35,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-08-22 16:48:35,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-22 16:48:35,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-08-22 16:48:35,875 INFO L138 SettingsManager]: * sizeof long double=12
[2020-08-22 16:48:35,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-08-22 16:48:35,875 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-08-22 16:48:35,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-08-22 16:48:35,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-22 16:48:35,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-08-22 16:48:35,876 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-08-22 16:48:35,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-08-22 16:48:35,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-22 16:48:35,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-22 16:48:35,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-08-22 16:48:35,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-08-22 16:48:35,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-08-22 16:48:35,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-08-22 16:48:35,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-22 16:48:35,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-08-22 16:48:35,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-08-22 16:48:36,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-22 16:48:36,189 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-22 16:48:36,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-22 16:48:36,194 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-08-22 16:48:36,195 INFO L275 PluginConnector]: CDTParser initialized
[2020-08-22 16:48:36,195 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_length_check-1.i
[2020-08-22 16:48:36,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc9f63c44/5ecacadb8d15472ebaabd0db1ed2da2d/FLAGf00ab2db7
[2020-08-22 16:48:36,806 INFO L306 CDTParser]: Found 1 translation units.
[2020-08-22 16:48:36,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/sll_length_check-1.i
[2020-08-22 16:48:36,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc9f63c44/5ecacadb8d15472ebaabd0db1ed2da2d/FLAGf00ab2db7
[2020-08-22 16:48:37,130 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc9f63c44/5ecacadb8d15472ebaabd0db1ed2da2d
[2020-08-22 16:48:37,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-22 16:48:37,143 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-22 16:48:37,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-22 16:48:37,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-22 16:48:37,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-22 16:48:37,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:48:37" (1/1) ...
[2020-08-22 16:48:37,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7395de13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:37, skipping insertion in model container
[2020-08-22 16:48:37,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:48:37" (1/1) ...
[2020-08-22 16:48:37,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-08-22 16:48:37,219 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-08-22 16:48:37,608 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-22 16:48:37,616 INFO L203 MainTranslator]: Completed pre-run
[2020-08-22 16:48:37,658 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-22 16:48:37,722 INFO L208 MainTranslator]: Completed translation
[2020-08-22 16:48:37,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:37 WrapperNode
[2020-08-22 16:48:37,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-22 16:48:37,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-22 16:48:37,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-22 16:48:37,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-08-22 16:48:37,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:37" (1/1) ...
[2020-08-22 16:48:37,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:37" (1/1) ...
[2020-08-22 16:48:37,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:37" (1/1) ...
[2020-08-22 16:48:37,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:37" (1/1) ...
[2020-08-22 16:48:37,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:37" (1/1) ...
[2020-08-22 16:48:37,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:37" (1/1) ...
[2020-08-22 16:48:37,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:37" (1/1) ...
[2020-08-22 16:48:37,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-22 16:48:37,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-22 16:48:37,782 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-08-22 16:48:37,783 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-08-22 16:48:37,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:37" (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 16:48:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-22 16:48:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-22 16:48:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32
[2020-08-22 16:48:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64
[2020-08-22 16:48:37,848 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit
[2020-08-22 16:48:37,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create
[2020-08-22 16:48:37,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length
[2020-08-22 16:48:37,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy
[2020-08-22 16:48:37,848 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-08-22 16:48:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-22 16:48:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-08-22 16:48:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32
[2020-08-22 16:48:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64
[2020-08-22 16:48:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2020-08-22 16:48:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2020-08-22 16:48:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2020-08-22 16:48:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2020-08-22 16:48:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2020-08-22 16:48:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2020-08-22 16:48:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2020-08-22 16:48:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2020-08-22 16:48:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2020-08-22 16:48:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2020-08-22 16:48:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2020-08-22 16:48:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2020-08-22 16:48:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2020-08-22 16:48:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2020-08-22 16:48:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2020-08-22 16:48:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2020-08-22 16:48:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2020-08-22 16:48:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2020-08-22 16:48:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2020-08-22 16:48:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2020-08-22 16:48:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2020-08-22 16:48:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2020-08-22 16:48:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2020-08-22 16:48:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2020-08-22 16:48:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2020-08-22 16:48:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2020-08-22 16:48:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2020-08-22 16:48:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2020-08-22 16:48:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2020-08-22 16:48:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2020-08-22 16:48:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2020-08-22 16:48:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2020-08-22 16:48:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2020-08-22 16:48:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2020-08-22 16:48:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2020-08-22 16:48:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2020-08-22 16:48:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2020-08-22 16:48:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2020-08-22 16:48:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2020-08-22 16:48:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2020-08-22 16:48:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2020-08-22 16:48:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2020-08-22 16:48:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2020-08-22 16:48:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2020-08-22 16:48:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2020-08-22 16:48:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2020-08-22 16:48:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2020-08-22 16:48:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2020-08-22 16:48:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2020-08-22 16:48:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2020-08-22 16:48:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-08-22 16:48:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2020-08-22 16:48:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2020-08-22 16:48:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-08-22 16:48:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure cfree
[2020-08-22 16:48:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2020-08-22 16:48:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2020-08-22 16:48:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2020-08-22 16:48:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc
[2020-08-22 16:48:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-08-22 16:48:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2020-08-22 16:48:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit
[2020-08-22 16:48:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2020-08-22 16:48:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2020-08-22 16:48:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit
[2020-08-22 16:48:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2020-08-22 16:48:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2020-08-22 16:48:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2020-08-22 16:48:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2020-08-22 16:48:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2020-08-22 16:48:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2020-08-22 16:48:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2020-08-22 16:48:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2020-08-22 16:48:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2020-08-22 16:48:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2020-08-22 16:48:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2020-08-22 16:48:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2020-08-22 16:48:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2020-08-22 16:48:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2020-08-22 16:48:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2020-08-22 16:48:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2020-08-22 16:48:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2020-08-22 16:48:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2020-08-22 16:48:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2020-08-22 16:48:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2020-08-22 16:48:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2020-08-22 16:48:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2020-08-22 16:48:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2020-08-22 16:48:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2020-08-22 16:48:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2020-08-22 16:48:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2020-08-22 16:48:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2020-08-22 16:48:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2020-08-22 16:48:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2020-08-22 16:48:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2020-08-22 16:48:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2020-08-22 16:48:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2020-08-22 16:48:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2020-08-22 16:48:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2020-08-22 16:48:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2020-08-22 16:48:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2020-08-22 16:48:37,865 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt
[2020-08-22 16:48:37,865 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2020-08-22 16:48:37,865 INFO L130 BoogieDeclarations]: Found specification of procedure myexit
[2020-08-22 16:48:37,865 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create
[2020-08-22 16:48:37,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-08-22 16:48:37,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-08-22 16:48:37,865 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length
[2020-08-22 16:48:37,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-08-22 16:48:37,866 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy
[2020-08-22 16:48:37,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-08-22 16:48:37,866 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-08-22 16:48:37,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-22 16:48:37,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-22 16:48:38,224 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true;
[2020-08-22 16:48:38,419 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-22 16:48:38,420 INFO L295 CfgBuilder]: Removed 4 assume(true) statements.
[2020-08-22 16:48:38,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:48:38 BoogieIcfgContainer
[2020-08-22 16:48:38,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-22 16:48:38,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-22 16:48:38,426 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-08-22 16:48:38,429 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-08-22 16:48:38,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:48:37" (1/3) ...
[2020-08-22 16:48:38,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768aa753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:48:38, skipping insertion in model container
[2020-08-22 16:48:38,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:37" (2/3) ...
[2020-08-22 16:48:38,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768aa753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:48:38, skipping insertion in model container
[2020-08-22 16:48:38,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:48:38" (3/3) ...
[2020-08-22 16:48:38,433 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_length_check-1.i
[2020-08-22 16:48:38,443 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-08-22 16:48:38,451 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-22 16:48:38,461 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-22 16:48:38,480 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-08-22 16:48:38,480 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-08-22 16:48:38,481 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-08-22 16:48:38,481 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-22 16:48:38,481 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-22 16:48:38,481 INFO L380 AbstractCegarLoop]: Difference is false
[2020-08-22 16:48:38,481 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-22 16:48:38,482 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-22 16:48:38,500 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states.
[2020-08-22 16:48:38,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-08-22 16:48:38,507 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 16:48:38,508 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]
[2020-08-22 16:48:38,508 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 16:48:38,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 16:48:38,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1666427650, now seen corresponding path program 1 times
[2020-08-22 16:48:38,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-08-22 16:48:38,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027351214]
[2020-08-22 16:48:38,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 16:48:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:38,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 16:48:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:38,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2020-08-22 16:48:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:38,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2020-08-22 16:48:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:38,746 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 16:48:38,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027351214]
[2020-08-22 16:48:38,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 16:48:38,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-08-22 16:48:38,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679951687]
[2020-08-22 16:48:38,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-08-22 16:48:38,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-08-22 16:48:38,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-08-22 16:48:38,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-08-22 16:48:38,776 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 4 states.
[2020-08-22 16:48:38,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 16:48:38,975 INFO L93 Difference]: Finished difference Result 90 states and 120 transitions.
[2020-08-22 16:48:38,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-08-22 16:48:38,977 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23
[2020-08-22 16:48:38,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 16:48:38,986 INFO L225 Difference]: With dead ends: 90
[2020-08-22 16:48:38,986 INFO L226 Difference]: Without dead ends: 38
[2020-08-22 16:48:38,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 16:48:39,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2020-08-22 16:48:39,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28.
[2020-08-22 16:48:39,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states.
[2020-08-22 16:48:39,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions.
[2020-08-22 16:48:39,035 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 23
[2020-08-22 16:48:39,035 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-22 16:48:39,036 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions.
[2020-08-22 16:48:39,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-08-22 16:48:39,036 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions.
[2020-08-22 16:48:39,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-08-22 16:48:39,037 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 16:48:39,038 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]
[2020-08-22 16:48:39,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-22 16:48:39,038 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 16:48:39,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 16:48:39,039 INFO L82 PathProgramCache]: Analyzing trace with hash -29727073, now seen corresponding path program 1 times
[2020-08-22 16:48:39,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-08-22 16:48:39,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38553224]
[2020-08-22 16:48:39,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 16:48:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:39,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 16:48:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:39,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-22 16:48:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:39,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2020-08-22 16:48:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:39,257 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 16:48:39,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38553224]
[2020-08-22 16:48:39,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 16:48:39,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-08-22 16:48:39,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101141099]
[2020-08-22 16:48:39,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-08-22 16:48:39,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-08-22 16:48:39,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-08-22 16:48:39,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-08-22 16:48:39,262 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 7 states.
[2020-08-22 16:48:39,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 16:48:39,487 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions.
[2020-08-22 16:48:39,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-08-22 16:48:39,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25
[2020-08-22 16:48:39,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 16:48:39,489 INFO L225 Difference]: With dead ends: 45
[2020-08-22 16:48:39,489 INFO L226 Difference]: Without dead ends: 31
[2020-08-22 16:48:39,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2020-08-22 16:48:39,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2020-08-22 16:48:39,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29.
[2020-08-22 16:48:39,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states.
[2020-08-22 16:48:39,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions.
[2020-08-22 16:48:39,498 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 25
[2020-08-22 16:48:39,498 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-22 16:48:39,499 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions.
[2020-08-22 16:48:39,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-08-22 16:48:39,499 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions.
[2020-08-22 16:48:39,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2020-08-22 16:48:39,500 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 16:48:39,500 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]
[2020-08-22 16:48:39,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-08-22 16:48:39,501 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 16:48:39,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 16:48:39,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1680455870, now seen corresponding path program 1 times
[2020-08-22 16:48:39,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-08-22 16:48:39,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436944878]
[2020-08-22 16:48:39,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 16:48:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:39,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 16:48:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:39,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-22 16:48:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:39,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2020-08-22 16:48:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:39,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 16:48:39,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436944878]
[2020-08-22 16:48:39,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732912325]
[2020-08-22 16:48:39,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-08-22 16:48:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:39,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-08-22 16:48:39,756 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-08-22 16:48:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 16:48:39,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-08-22 16:48:39,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 9
[2020-08-22 16:48:39,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112848468]
[2020-08-22 16:48:39,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-08-22 16:48:39,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-08-22 16:48:39,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-08-22 16:48:39,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2020-08-22 16:48:39,832 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 9 states.
[2020-08-22 16:48:40,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 16:48:40,021 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions.
[2020-08-22 16:48:40,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-08-22 16:48:40,022 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28
[2020-08-22 16:48:40,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 16:48:40,024 INFO L225 Difference]: With dead ends: 48
[2020-08-22 16:48:40,024 INFO L226 Difference]: Without dead ends: 34
[2020-08-22 16:48:40,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156
[2020-08-22 16:48:40,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2020-08-22 16:48:40,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32.
[2020-08-22 16:48:40,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states.
[2020-08-22 16:48:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions.
[2020-08-22 16:48:40,032 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 28
[2020-08-22 16:48:40,032 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-22 16:48:40,032 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions.
[2020-08-22 16:48:40,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-08-22 16:48:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions.
[2020-08-22 16:48:40,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-08-22 16:48:40,034 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 16:48:40,034 INFO L422 BasicCegarLoop]: trace histogram [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]
[2020-08-22 16:48:40,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2020-08-22 16:48:40,249 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 16:48:40,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 16:48:40,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1166508097, now seen corresponding path program 2 times
[2020-08-22 16:48:40,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-08-22 16:48:40,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943769913]
[2020-08-22 16:48:40,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 16:48:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:40,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 16:48:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:40,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-22 16:48:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:40,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2020-08-22 16:48:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:40,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 16:48:40,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943769913]
[2020-08-22 16:48:40,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650670069]
[2020-08-22 16:48:40,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-08-22 16:48:40,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-08-22 16:48:40,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-08-22 16:48:40,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-08-22 16:48:40,546 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-08-22 16:48:40,584 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 16:48:40,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-08-22 16:48:40,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 10
[2020-08-22 16:48:40,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34231221]
[2020-08-22 16:48:40,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-08-22 16:48:40,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-08-22 16:48:40,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-08-22 16:48:40,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2020-08-22 16:48:40,587 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 10 states.
[2020-08-22 16:48:40,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 16:48:40,773 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions.
[2020-08-22 16:48:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-08-22 16:48:40,773 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31
[2020-08-22 16:48:40,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 16:48:40,774 INFO L225 Difference]: With dead ends: 51
[2020-08-22 16:48:40,775 INFO L226 Difference]: Without dead ends: 37
[2020-08-22 16:48:40,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182
[2020-08-22 16:48:40,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2020-08-22 16:48:40,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35.
[2020-08-22 16:48:40,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states.
[2020-08-22 16:48:40,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions.
[2020-08-22 16:48:40,782 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 31
[2020-08-22 16:48:40,782 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-22 16:48:40,782 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions.
[2020-08-22 16:48:40,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-08-22 16:48:40,783 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions.
[2020-08-22 16:48:40,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2020-08-22 16:48:40,784 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 16:48:40,784 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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 16:48:40,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-08-22 16:48:40,998 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 16:48:40,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 16:48:40,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1706812894, now seen corresponding path program 3 times
[2020-08-22 16:48:40,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-08-22 16:48:40,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745535596]
[2020-08-22 16:48:41,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 16:48:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:41,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 16:48:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:41,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-22 16:48:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:41,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-08-22 16:48:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:41,152 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-08-22 16:48:41,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745535596]
[2020-08-22 16:48:41,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 16:48:41,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-08-22 16:48:41,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219107093]
[2020-08-22 16:48:41,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-08-22 16:48:41,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-08-22 16:48:41,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-08-22 16:48:41,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110
[2020-08-22 16:48:41,154 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 11 states.
[2020-08-22 16:48:41,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 16:48:41,405 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions.
[2020-08-22 16:48:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-08-22 16:48:41,405 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34
[2020-08-22 16:48:41,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 16:48:41,406 INFO L225 Difference]: With dead ends: 43
[2020-08-22 16:48:41,406 INFO L226 Difference]: Without dead ends: 36
[2020-08-22 16:48:41,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240
[2020-08-22 16:48:41,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2020-08-22 16:48:41,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2020-08-22 16:48:41,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states.
[2020-08-22 16:48:41,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions.
[2020-08-22 16:48:41,413 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 34
[2020-08-22 16:48:41,414 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-22 16:48:41,414 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions.
[2020-08-22 16:48:41,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-08-22 16:48:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions.
[2020-08-22 16:48:41,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-08-22 16:48:41,415 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 16:48:41,415 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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 16:48:41,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-08-22 16:48:41,416 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 16:48:41,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 16:48:41,416 INFO L82 PathProgramCache]: Analyzing trace with hash 991320762, now seen corresponding path program 1 times
[2020-08-22 16:48:41,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-08-22 16:48:41,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069301025]
[2020-08-22 16:48:41,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 16:48:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:41,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 16:48:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:41,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-22 16:48:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:41,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-08-22 16:48:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:41,598 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-08-22 16:48:41,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069301025]
[2020-08-22 16:48:41,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525829995]
[2020-08-22 16:48:41,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-08-22 16:48:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:41,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 40 conjunts are in the unsatisfiable core
[2020-08-22 16:48:41,703 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-08-22 16:48:41,770 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2020-08-22 16:48:41,771 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2020-08-22 16:48:41,778 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-08-22 16:48:41,779 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts.
[2020-08-22 16:48:41,779 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:12
[2020-08-22 16:48:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-08-22 16:48:42,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-08-22 16:48:42,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 23
[2020-08-22 16:48:42,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270092347]
[2020-08-22 16:48:42,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states
[2020-08-22 16:48:42,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-08-22 16:48:42,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2020-08-22 16:48:42,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506
[2020-08-22 16:48:42,023 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 23 states.
[2020-08-22 16:48:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 16:48:48,657 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions.
[2020-08-22 16:48:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-08-22 16:48:48,658 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 35
[2020-08-22 16:48:48,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 16:48:48,659 INFO L225 Difference]: With dead ends: 44
[2020-08-22 16:48:48,659 INFO L226 Difference]: Without dead ends: 37
[2020-08-22 16:48:48,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992
[2020-08-22 16:48:48,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2020-08-22 16:48:48,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2020-08-22 16:48:48,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states.
[2020-08-22 16:48:48,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions.
[2020-08-22 16:48:48,667 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 35
[2020-08-22 16:48:48,667 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-22 16:48:48,667 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions.
[2020-08-22 16:48:48,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states.
[2020-08-22 16:48:48,667 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions.
[2020-08-22 16:48:48,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2020-08-22 16:48:48,668 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 16:48:48,668 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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]
[2020-08-22 16:48:48,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-08-22 16:48:48,885 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 16:48:48,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 16:48:48,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1265881822, now seen corresponding path program 2 times
[2020-08-22 16:48:48,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-08-22 16:48:48,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855871168]
[2020-08-22 16:48:48,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 16:48:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:48,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 16:48:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:48,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-22 16:48:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:48,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-08-22 16:48:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 16:48:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-08-22 16:48:49,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855871168]
[2020-08-22 16:48:49,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081279373]
[2020-08-22 16:48:49,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-08-22 16:48:49,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-08-22 16:48:49,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-08-22 16:48:49,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 13 conjunts are in the unsatisfiable core
[2020-08-22 16:48:49,138 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-08-22 16:48:49,190 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-08-22 16:48:49,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-08-22 16:48:49,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 11
[2020-08-22 16:48:49,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502085545]
[2020-08-22 16:48:49,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-08-22 16:48:49,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-08-22 16:48:49,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-08-22 16:48:49,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110
[2020-08-22 16:48:49,193 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 11 states.
[2020-08-22 16:48:49,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 16:48:49,487 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions.
[2020-08-22 16:48:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-08-22 16:48:49,488 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36
[2020-08-22 16:48:49,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 16:48:49,491 INFO L225 Difference]: With dead ends: 55
[2020-08-22 16:48:49,491 INFO L226 Difference]: Without dead ends: 51
[2020-08-22 16:48:49,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272
[2020-08-22 16:48:49,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2020-08-22 16:48:49,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47.
[2020-08-22 16:48:49,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states.
[2020-08-22 16:48:49,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions.
[2020-08-22 16:48:49,503 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 36
[2020-08-22 16:48:49,503 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-22 16:48:49,503 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions.
[2020-08-22 16:48:49,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-08-22 16:48:49,504 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions.
[2020-08-22 16:48:49,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2020-08-22 16:48:49,506 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 16:48:49,506 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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 16:48:49,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-08-22 16:48:49,713 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 16:48:49,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 16:48:49,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1775282106, now seen corresponding path program 3 times
[2020-08-22 16:48:49,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-08-22 16:48:49,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796370825]
[2020-08-22 16:48:49,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 16:48:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-22 16:48:49,737 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-08-22 16:48:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-22 16:48:49,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-08-22 16:48:49,790 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-08-22 16:48:49,790 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-08-22 16:48:49,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-08-22 16:48:49,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:48:49 BoogieIcfgContainer
[2020-08-22 16:48:49,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-22 16:48:49,829 INFO L168 Benchmark]: Toolchain (without parser) took 12686.25 ms. Allocated memory was 138.9 MB in the beginning and 281.0 MB in the end (delta: 142.1 MB). Free memory was 99.9 MB in the beginning and 81.0 MB in the end (delta: 18.9 MB). Peak memory consumption was 160.9 MB. Max. memory is 7.1 GB.
[2020-08-22 16:48:49,830 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-08-22 16:48:49,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.92 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.7 MB in the beginning and 167.4 MB in the end (delta: -67.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB.
[2020-08-22 16:48:49,832 INFO L168 Benchmark]: Boogie Preprocessor took 58.11 ms. Allocated memory is still 201.9 MB. Free memory was 167.4 MB in the beginning and 164.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB.
[2020-08-22 16:48:49,833 INFO L168 Benchmark]: RCFGBuilder took 641.89 ms. Allocated memory is still 201.9 MB. Free memory was 164.8 MB in the beginning and 122.1 MB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB.
[2020-08-22 16:48:49,833 INFO L168 Benchmark]: TraceAbstraction took 11402.13 ms. Allocated memory was 201.9 MB in the beginning and 281.0 MB in the end (delta: 79.2 MB). Free memory was 121.4 MB in the beginning and 81.0 MB in the end (delta: 40.4 MB). Peak memory consumption was 119.6 MB. Max. memory is 7.1 GB.
[2020-08-22 16:48:49,837 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 576.92 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.7 MB in the beginning and 167.4 MB in the end (delta: -67.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 58.11 ms. Allocated memory is still 201.9 MB. Free memory was 167.4 MB in the beginning and 164.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 641.89 ms. Allocated memory is still 201.9 MB. Free memory was 164.8 MB in the beginning and 122.1 MB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 11402.13 ms. Allocated memory was 201.9 MB in the beginning and 281.0 MB in the end (delta: 79.2 MB). Free memory was 121.4 MB in the beginning and 81.0 MB in the end (delta: 40.4 MB). Peak memory consumption was 119.6 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 602]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L592] int len = 2;
VAL [len=2]
[L593] len < 32 && __VERIFIER_nondet_int()
[L593] len < 32 && __VERIFIER_nondet_int()
VAL [__VERIFIER_nondet_int()=0, len=2, len < 32 && __VERIFIER_nondet_int()=0]
[L593] COND FALSE !(len < 32 && __VERIFIER_nondet_int())
[L596] CALL, EXPR sll_create(len + 1)
VAL [\old(len)=3]
[L564] SLL head = ((void *)0);
VAL [\old(len)=3, head={0:0}, len=3]
[L565] COND TRUE len > 0
[L566] SLL new_head = (SLL) malloc(sizeof(struct node));
VAL [\old(len)=3, head={0:0}, len=3, malloc(sizeof(struct node))={-1:0}, new_head={-1:0}]
[L567] COND FALSE !(((void *)0) == new_head)
VAL [\old(len)=3, head={0:0}, len=3, malloc(sizeof(struct node))={-1:0}, new_head={-1:0}]
[L570] new_head->next = head
[L571] head = new_head
[L572] len--
VAL [\old(len)=3, head={-1:0}, len=2, malloc(sizeof(struct node))={-1:0}, new_head={-1:0}]
[L565] COND TRUE len > 0
[L566] SLL new_head = (SLL) malloc(sizeof(struct node));
VAL [\old(len)=3, head={-1:0}, len=2, malloc(sizeof(struct node))={-2:0}, new_head={-2:0}]
[L567] COND FALSE !(((void *)0) == new_head)
VAL [\old(len)=3, head={-1:0}, len=2, malloc(sizeof(struct node))={-2:0}, new_head={-2:0}]
[L570] new_head->next = head
[L571] head = new_head
[L572] len--
VAL [\old(len)=3, head={-2:0}, len=1, malloc(sizeof(struct node))={-2:0}, new_head={-2:0}]
[L565] COND TRUE len > 0
[L566] SLL new_head = (SLL) malloc(sizeof(struct node));
VAL [\old(len)=3, head={-2:0}, len=1, malloc(sizeof(struct node))={-3:0}, new_head={-3:0}]
[L567] COND FALSE !(((void *)0) == new_head)
VAL [\old(len)=3, head={-2:0}, len=1, malloc(sizeof(struct node))={-3:0}, new_head={-3:0}]
[L570] new_head->next = head
[L571] head = new_head
[L572] len--
VAL [\old(len)=3, head={-3:0}, len=0, malloc(sizeof(struct node))={-3:0}, new_head={-3:0}]
[L565] COND FALSE !(len > 0)
VAL [\old(len)=3, head={-3:0}, len=0, malloc(sizeof(struct node))={-3:0}, new_head={-3:0}]
[L574] return head;
VAL [\old(len)=3, \result={-3:0}, head={-3:0}, len=0, malloc(sizeof(struct node))={-3:0}, new_head={-3:0}]
[L596] RET, EXPR sll_create(len + 1)
VAL [len=2, sll_create(len + 1)={-3:0}]
[L596] SLL s = sll_create(len + 1);
[L597] CALL, EXPR sll_length(s)
VAL [head={-3:0}]
[L577] int len = 0;
VAL [head={-3:0}, head={-3:0}, len=0]
[L578] COND TRUE \read(head)
[L579] len++
[L580] EXPR head->next
[L580] head = head->next
[L578] COND TRUE \read(head)
[L579] len++
[L580] EXPR head->next
[L580] head = head->next
[L578] COND TRUE \read(head)
[L579] len++
[L580] EXPR head->next
[L580] head = head->next
[L578] COND FALSE !(\read(head))
VAL [head={-3:0}, head={0:0}, len=3]
[L582] return len;
VAL [\result=3, head={-3:0}, head={0:0}, len=3]
[L597] RET, EXPR sll_length(s)
VAL [len=2, s={-3:0}, sll_length(s)=3]
[L597] COND TRUE len != sll_length(s)
[L602] __VERIFIER_error()
VAL [len=2, s={-3:0}]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 9 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.3s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 183 SDtfs, 316 SDslu, 532 SDs, 0 SdLazy, 972 SolverSat, 101 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 160 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 20 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 379 NumberOfCodeBlocks, 379 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 331 ConstructedInterpolants, 6 QuantifiedInterpolants, 35674 SizeOfPredicates, 18 NumberOfNonLiveVariables, 591 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 55/80 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...