java -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf -i '/storage/chc-comp/llreve-bench/smt2/faulty__nested-while!.smt2' -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 11:48:26,430 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 11:48:26,434 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 11:48:26,449 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 11:48:26,449 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 11:48:26,450 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 11:48:26,451 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 11:48:26,455 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 11:48:26,456 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 11:48:26,458 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 11:48:26,458 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 11:48:26,459 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 11:48:26,459 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 11:48:26,460 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 11:48:26,461 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 11:48:26,462 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 11:48:26,463 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 11:48:26,465 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 11:48:26,467 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 11:48:26,468 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 11:48:26,469 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 11:48:26,471 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 11:48:26,472 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 11:48:26,472 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 11:48:26,473 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 11:48:26,474 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 11:48:26,474 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 11:48:26,475 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 11:48:26,476 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 11:48:26,476 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 11:48:26,477 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 11:48:26,478 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 11:48:26,478 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 11:48:26,479 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 11:48:26,479 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 11:48:26,480 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 11:48:26,498 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 11:48:26,499 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 11:48:26,499 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 11:48:26,499 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 11:48:26,500 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 11:48:26,501 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 11:48:26,503 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 11:48:26,504 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 11:48:26,504 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 11:48:26,504 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 11:48:26,504 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 11:48:26,504 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 11:48:26,504 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 11:48:26,505 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 11:48:26,505 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 11:48:26,505 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 11:48:26,505 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 11:48:26,507 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 11:48:26,508 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 11:48:26,560 INFO ]: Repository-Root is: /tmp [2018-06-18 11:48:26,578 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 11:48:26,583 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 11:48:26,584 INFO ]: Initializing SmtParser... [2018-06-18 11:48:26,585 INFO ]: SmtParser initialized [2018-06-18 11:48:26,585 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/faulty__nested-while!.smt2 [2018-06-18 11:48:26,587 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-18 11:48:26,682 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/faulty__nested-while!.smt2 Unexpected Exception: java.lang.NullPointerException [2018-06-18 11:48:26,776 INFO ]: Failed while executing SMT file /storage/chc-comp/llreve-bench/smt2/faulty__nested-while!.smt2 [2018-06-18 11:48:26,776 INFO ]: SMTLIBException java.lang.NullPointerException (error "java.lang.NullPointerException") Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown