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/hopv/lia/termination/Ackermann01.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 11:38:46,078 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 11:38:46,090 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 11:38:46,108 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 11:38:46,109 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 11:38:46,110 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 11:38:46,111 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 11:38:46,117 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 11:38:46,118 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 11:38:46,119 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 11:38:46,123 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 11:38:46,123 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 11:38:46,124 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 11:38:46,126 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 11:38:46,126 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 11:38:46,127 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 11:38:46,131 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 11:38:46,132 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 11:38:46,136 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 11:38:46,137 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 11:38:46,149 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 11:38:46,152 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 11:38:46,152 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 11:38:46,152 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 11:38:46,153 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 11:38:46,154 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 11:38:46,155 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 11:38:46,159 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 11:38:46,160 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 11:38:46,160 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 11:38:46,161 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 11:38:46,161 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 11:38:46,162 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 11:38:46,162 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 11:38:46,163 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 11:38:46,163 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 11:38:46,188 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 11:38:46,188 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 11:38:46,188 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 11:38:46,189 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 11:38:46,190 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 11:38:46,190 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 11:38:46,190 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 11:38:46,190 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 11:38:46,191 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 11:38:46,191 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 11:38:46,192 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 11:38:46,192 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 11:38:46,192 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 11:38:46,192 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 11:38:46,192 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 11:38:46,192 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 11:38:46,193 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 11:38:46,194 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 11:38:46,194 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 11:38:46,241 INFO ]: Repository-Root is: /tmp [2018-06-18 11:38:46,259 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 11:38:46,265 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 11:38:46,267 INFO ]: Initializing SmtParser... [2018-06-18 11:38:46,267 INFO ]: SmtParser initialized [2018-06-18 11:38:46,268 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/Ackermann01.smt2 [2018-06-18 11:38:46,269 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 11:38:46,360 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/Ackermann01.smt2 Unexpected Exception: java.lang.NullPointerException [2018-06-18 11:38:46,506 INFO ]: Failed while executing SMT file /storage/chc-comp/hopv/lia/termination/Ackermann01.smt2 [2018-06-18 11:38:46,506 INFO ]: SMTLIBException java.lang.NullPointerException (error "java.lang.NullPointerException") Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown