java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/repos/svcomp/c/recursive-simple/ChcSmtPrinter_fibo_2calls_20_false-unreach-call.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13656f4 [2019-03-17 17:08:22,244 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-03-17 17:08:22,246 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-03-17 17:08:22,257 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-03-17 17:08:22,291 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-03-17 17:08:22,292 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-03-17 17:08:22,293 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-03-17 17:08:22,293 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2019-03-17 17:08:22,328 INFO L110 SettingsManager]: Loading preferences was successful [2019-03-17 17:08:22,328 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-03-17 17:08:22,329 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-03-17 17:08:22,329 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2019-03-17 17:08:22,331 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-03-17 17:08:22,332 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-03-17 17:08:22,332 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2019-03-17 17:08:22,332 INFO L133 SettingsManager]: * Use SBE=true [2019-03-17 17:08:22,332 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2019-03-17 17:08:22,332 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2019-03-17 17:08:22,333 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-03-17 17:08:22,333 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-03-17 17:08:22,333 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-03-17 17:08:22,333 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-03-17 17:08:22,334 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-03-17 17:08:22,335 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-03-17 17:08:22,335 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-03-17 17:08:22,335 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-03-17 17:08:22,336 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-03-17 17:08:22,336 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-03-17 17:08:22,336 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-03-17 17:08:22,336 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2019-03-17 17:08:22,340 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2019-03-17 17:08:22,340 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2019-03-17 17:08:22,379 INFO ]: Repository-Root is: /tmp [2019-03-17 17:08:22,399 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-03-17 17:08:22,403 INFO ]: [Toolchain 1]: Toolchain selected. [2019-03-17 17:08:22,405 INFO ]: Initializing SmtParser... [2019-03-17 17:08:22,405 INFO ]: SmtParser initialized [2019-03-17 17:08:22,407 INFO ]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/recursive-simple/ChcSmtPrinter_fibo_2calls_20_false-unreach-call.c.smt2 [2019-03-17 17:08:22,485 INFO ]: Parsing .smt2 file as a set of Horn Clauses Unexpected Exception: java.lang.NullPointerException [2019-03-17 17:08:22,563 INFO ]: Failed while executing SMT file /storage/repos/svcomp/c/recursive-simple/ChcSmtPrinter_fibo_2calls_20_false-unreach-call.c.smt2 [2019-03-17 17:08:22,563 INFO ]: SMTLIBException java.lang.NullPointerException (error "java.lang.NullPointerException") Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown