java -Xss1g -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/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/hopv/lia/termination/toChurch05.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:41:17,876 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:41:17,878 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:41:17,893 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:41:17,894 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:41:17,895 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:41:17,897 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:41:17,899 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:41:17,901 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:41:17,902 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:41:17,903 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:41:17,904 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:41:17,904 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:41:17,907 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:41:17,908 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:41:17,909 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:41:17,919 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:41:17,921 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:41:17,922 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:41:17,925 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:41:17,927 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:41:17,929 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:41:17,930 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:41:17,930 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:41:17,931 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:41:17,932 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:41:17,933 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:41:17,933 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:41:17,936 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:41:17,936 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:41:17,937 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:41:17,937 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:41:17,938 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:41:17,938 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:41:17,942 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:41:17,943 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 11:41:17,961 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:41:17,962 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:41:17,963 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:41:17,964 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:41:17,965 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:41:17,965 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:41:17,965 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:41:17,965 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:41:17,965 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:41:17,966 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:41:17,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:41:17,966 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:41:17,966 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:41:17,966 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:41:17,967 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:41:17,967 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:41:17,967 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:41:17,967 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:41:17,967 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:41:17,969 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:41:17,970 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:41:18,022 INFO ]: Repository-Root is: /tmp [2018-06-22 11:41:18,038 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:41:18,045 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:41:18,057 INFO ]: Initializing SmtParser... [2018-06-22 11:41:18,058 INFO ]: SmtParser initialized [2018-06-22 11:41:18,058 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/toChurch05.smt2 [2018-06-22 11:41:18,060 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 [2018-06-22 11:41:18,158 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/toChurch05.smt2 unknown [2018-06-22 11:41:19,099 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/toChurch05.smt2 [2018-06-22 11:41:19,107 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:41:19,114 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:41:19,115 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:41:19,115 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:41:19,115 INFO ]: ChcToBoogie initialized [2018-06-22 11:41:19,119 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:41:19" (1/1) ... [2018-06-22 11:41:19,174 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:19 Unit [2018-06-22 11:41:19,175 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:41:19,175 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:41:19,175 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:41:19,175 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:41:19,199 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:19" (1/1) ... [2018-06-22 11:41:19,199 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:19" (1/1) ... [2018-06-22 11:41:19,214 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:19" (1/1) ... [2018-06-22 11:41:19,214 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:19" (1/1) ... [2018-06-22 11:41:19,231 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:19" (1/1) ... [2018-06-22 11:41:19,256 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:19" (1/1) ... [2018-06-22 11:41:19,259 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:19" (1/1) ... [2018-06-22 11:41:19,270 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:41:19,270 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:41:19,271 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:41:19,271 INFO ]: RCFGBuilder initialized [2018-06-22 11:41:19,271 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:19" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 11:41:19,293 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:41:19,293 INFO ]: Found specification of procedure False [2018-06-22 11:41:19,293 INFO ]: Found implementation of procedure False [2018-06-22 11:41:19,293 INFO ]: Specification and implementation of procedure failDLRunknownCLN32 given in one single declaration [2018-06-22 11:41:19,293 INFO ]: Found specification of procedure failDLRunknownCLN32 [2018-06-22 11:41:19,293 INFO ]: Found implementation of procedure failDLRunknownCLN32 [2018-06-22 11:41:19,293 INFO ]: Specification and implementation of procedure toChurch_1038DLRunknownCLN75 given in one single declaration [2018-06-22 11:41:19,293 INFO ]: Found specification of procedure toChurch_1038DLRunknownCLN75 [2018-06-22 11:41:19,293 INFO ]: Found implementation of procedure toChurch_1038DLRunknownCLN75 [2018-06-22 11:41:19,293 INFO ]: Specification and implementation of procedure toChurch_without_checking_1376DLRunknownCLN96 given in one single declaration [2018-06-22 11:41:19,293 INFO ]: Found specification of procedure toChurch_without_checking_1376DLRunknownCLN96 [2018-06-22 11:41:19,293 INFO ]: Found implementation of procedure toChurch_without_checking_1376DLRunknownCLN96 [2018-06-22 11:41:19,293 INFO ]: Specification and implementation of procedure toChurch_1038DLRunknownCLN54 given in one single declaration [2018-06-22 11:41:19,293 INFO ]: Found specification of procedure toChurch_1038DLRunknownCLN54 [2018-06-22 11:41:19,293 INFO ]: Found implementation of procedure toChurch_1038DLRunknownCLN54 [2018-06-22 11:41:19,293 INFO ]: Specification and implementation of procedure botDLRunknownCLN2 given in one single declaration [2018-06-22 11:41:19,293 INFO ]: Found specification of procedure botDLRunknownCLN2 [2018-06-22 11:41:19,293 INFO ]: Found implementation of procedure botDLRunknownCLN2 [2018-06-22 11:41:19,293 INFO ]: Specification and implementation of procedure failDLRunknownCLN33 given in one single declaration [2018-06-22 11:41:19,293 INFO ]: Found specification of procedure failDLRunknownCLN33 [2018-06-22 11:41:19,293 INFO ]: Found implementation of procedure failDLRunknownCLN33 [2018-06-22 11:41:19,293 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:41:19,293 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:41:19,293 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:41:19,980 INFO ]: Using library mode [2018-06-22 11:41:19,980 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:41:19 BoogieIcfgContainer [2018-06-22 11:41:19,981 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:41:19,985 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:41:19,985 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:41:19,989 INFO ]: TraceAbstraction initialized [2018-06-22 11:41:19,989 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:41:19" (1/3) ... [2018-06-22 11:41:19,990 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477d001d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:41:19, skipping insertion in model container [2018-06-22 11:41:19,990 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:19" (2/3) ... [2018-06-22 11:41:19,991 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477d001d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:41:19, skipping insertion in model container [2018-06-22 11:41:19,991 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:41:19" (3/3) ... [2018-06-22 11:41:19,992 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:41:20,002 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:41:20,012 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:41:20,062 INFO ]: Using default assertion order modulation [2018-06-22 11:41:20,062 INFO ]: Interprodecural is true [2018-06-22 11:41:20,062 INFO ]: Hoare is false [2018-06-22 11:41:20,062 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:41:20,062 INFO ]: Backedges is TWOTRACK [2018-06-22 11:41:20,062 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:41:20,062 INFO ]: Difference is false [2018-06-22 11:41:20,062 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:41:20,062 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:41:20,076 INFO ]: Start isEmpty. Operand 37 states. [2018-06-22 11:41:20,094 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:41:20,094 INFO ]: Found error trace [2018-06-22 11:41:20,095 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:41:20,095 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:20,102 INFO ]: Analyzing trace with hash 618908152, now seen corresponding path program 1 times [2018-06-22 11:41:20,104 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:20,104 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:20,140 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:20,140 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:20,140 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:20,154 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:20,175 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:41:20,176 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:41:20,176 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:41:20,178 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:41:20,189 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:41:20,190 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:41:20,196 INFO ]: Start difference. First operand 37 states. Second operand 2 states. [2018-06-22 11:41:20,223 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:20,223 INFO ]: Finished difference Result 29 states and 33 transitions. [2018-06-22 11:41:20,223 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:41:20,224 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:41:20,225 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:20,236 INFO ]: With dead ends: 29 [2018-06-22 11:41:20,237 INFO ]: Without dead ends: 25 [2018-06-22 11:41:20,239 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:41:20,255 INFO ]: Start minimizeSevpa. Operand 25 states. [2018-06-22 11:41:20,286 INFO ]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-06-22 11:41:20,287 INFO ]: Start removeUnreachable. Operand 25 states. [2018-06-22 11:41:20,289 INFO ]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2018-06-22 11:41:20,290 INFO ]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 5 [2018-06-22 11:41:20,290 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:20,290 INFO ]: Abstraction has 25 states and 29 transitions. [2018-06-22 11:41:20,290 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:41:20,290 INFO ]: Start isEmpty. Operand 25 states and 29 transitions. [2018-06-22 11:41:20,291 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:41:20,292 INFO ]: Found error trace [2018-06-22 11:41:20,292 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:41:20,292 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:20,292 INFO ]: Analyzing trace with hash 1265103196, now seen corresponding path program 1 times [2018-06-22 11:41:20,292 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:20,292 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:20,292 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:20,292 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:20,292 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:20,329 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:41:20,329 INFO ]: Advancing trace checker [2018-06-22 11:41:20,329 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-22 11:41:20,348 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:20,413 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:20,454 INFO ]: Computing forward predicates... [2018-06-22 11:41:20,949 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:41:20,970 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:41:20,970 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 11:41:20,972 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:41:20,972 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:41:20,972 INFO ]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:41:20,972 INFO ]: Start difference. First operand 25 states and 29 transitions. Second operand 6 states. [2018-06-22 11:41:21,094 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:21,094 INFO ]: Finished difference Result 29 states and 35 transitions. [2018-06-22 11:41:21,095 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:41:21,095 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 11:41:21,095 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:21,096 INFO ]: With dead ends: 29 [2018-06-22 11:41:21,096 INFO ]: Without dead ends: 29 [2018-06-22 11:41:21,096 INFO ]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:41:21,097 INFO ]: Start minimizeSevpa. Operand 29 states. [2018-06-22 11:41:21,103 INFO ]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-06-22 11:41:21,103 INFO ]: Start removeUnreachable. Operand 29 states. [2018-06-22 11:41:21,104 INFO ]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2018-06-22 11:41:21,104 INFO ]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 17 [2018-06-22 11:41:21,104 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:21,104 INFO ]: Abstraction has 29 states and 35 transitions. [2018-06-22 11:41:21,104 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:41:21,104 INFO ]: Start isEmpty. Operand 29 states and 35 transitions. [2018-06-22 11:41:21,105 INFO ]: Finished isEmpty. Found accepting run of length 34 [2018-06-22 11:41:21,105 INFO ]: Found error trace [2018-06-22 11:41:21,105 INFO ]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:41:21,106 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:21,106 INFO ]: Analyzing trace with hash -535739921, now seen corresponding path program 1 times [2018-06-22 11:41:21,106 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:21,106 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:21,107 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:21,107 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:21,107 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:21,127 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:41:21,127 INFO ]: Advancing trace checker [2018-06-22 11:41:21,127 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-22 11:41:21,140 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:21,236 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:21,244 INFO ]: Computing forward predicates... [2018-06-22 11:41:21,348 INFO ]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 11:41:21,371 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:41:21,372 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:41:21,372 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:41:21,372 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:41:21,372 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:41:21,372 INFO ]: Start difference. First operand 29 states and 35 transitions. Second operand 4 states. [2018-06-22 11:41:21,392 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:21,392 INFO ]: Finished difference Result 29 states and 33 transitions. [2018-06-22 11:41:21,392 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:41:21,392 INFO ]: Start accepts. Automaton has 4 states. Word has length 33 [2018-06-22 11:41:21,392 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:21,393 INFO ]: With dead ends: 29 [2018-06-22 11:41:21,393 INFO ]: Without dead ends: 28 [2018-06-22 11:41:21,393 INFO ]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:41:21,393 INFO ]: Start minimizeSevpa. Operand 28 states. [2018-06-22 11:41:21,397 INFO ]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-06-22 11:41:21,397 INFO ]: Start removeUnreachable. Operand 28 states. [2018-06-22 11:41:21,398 INFO ]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2018-06-22 11:41:21,398 INFO ]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 33 [2018-06-22 11:41:21,398 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:21,398 INFO ]: Abstraction has 28 states and 31 transitions. [2018-06-22 11:41:21,398 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:41:21,398 INFO ]: Start isEmpty. Operand 28 states and 31 transitions. [2018-06-22 11:41:21,399 INFO ]: Finished isEmpty. Found accepting run of length 34 [2018-06-22 11:41:21,399 INFO ]: Found error trace [2018-06-22 11:41:21,399 INFO ]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:41:21,399 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:21,400 INFO ]: Analyzing trace with hash 597686922, now seen corresponding path program 1 times [2018-06-22 11:41:21,400 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:21,400 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:21,400 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:21,400 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:21,400 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:21,418 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:41:21,418 INFO ]: Advancing trace checker [2018-06-22 11:41:21,418 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-22 11:41:21,435 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:21,521 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:21,525 INFO ]: Computing forward predicates... [2018-06-22 11:41:21,938 INFO ]: Checked inductivity of 13 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 11:41:21,971 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:41:21,971 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-06-22 11:41:21,971 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:41:21,971 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:41:21,971 INFO ]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:41:21,972 INFO ]: Start difference. First operand 28 states and 31 transitions. Second operand 7 states. [2018-06-22 11:41:22,201 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:22,201 INFO ]: Finished difference Result 22 states and 25 transitions. [2018-06-22 11:41:22,201 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:41:22,201 INFO ]: Start accepts. Automaton has 7 states. Word has length 33 [2018-06-22 11:41:22,202 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:22,202 INFO ]: With dead ends: 22 [2018-06-22 11:41:22,202 INFO ]: Without dead ends: 0 [2018-06-22 11:41:22,202 INFO ]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:41:22,202 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:41:22,202 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:41:22,202 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:41:22,202 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:41:22,202 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-06-22 11:41:22,202 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:22,202 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:41:22,202 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:41:22,202 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:41:22,202 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:41:22,206 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:41:22 BoogieIcfgContainer [2018-06-22 11:41:22,206 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:41:22,207 INFO ]: Toolchain (without parser) took 3099.82 ms. Allocated memory was 306.7 MB in the beginning and 321.9 MB in the end (delta: 15.2 MB). Free memory was 214.2 MB in the beginning and 185.3 MB in the end (delta: 28.9 MB). Peak memory consumption was 44.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:22,208 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:41:22,209 INFO ]: ChcToBoogie took 59.84 ms. Allocated memory is still 306.7 MB. Free memory was 213.2 MB in the beginning and 211.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:22,209 INFO ]: Boogie Preprocessor took 94.67 ms. Allocated memory is still 306.7 MB. Free memory was 211.2 MB in the beginning and 209.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:22,209 INFO ]: RCFGBuilder took 710.09 ms. Allocated memory was 306.7 MB in the beginning and 321.9 MB in the end (delta: 15.2 MB). Free memory was 209.2 MB in the beginning and 282.4 MB in the end (delta: -73.2 MB). Peak memory consumption was 29.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:22,210 INFO ]: TraceAbstraction took 2220.98 ms. Allocated memory is still 321.9 MB. Free memory was 282.4 MB in the beginning and 185.3 MB in the end (delta: 97.1 MB). Peak memory consumption was 97.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:22,212 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 59.84 ms. Allocated memory is still 306.7 MB. Free memory was 213.2 MB in the beginning and 211.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 94.67 ms. Allocated memory is still 306.7 MB. Free memory was 211.2 MB in the beginning and 209.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 710.09 ms. Allocated memory was 306.7 MB in the beginning and 321.9 MB in the end (delta: 15.2 MB). Free memory was 209.2 MB in the beginning and 282.4 MB in the end (delta: -73.2 MB). Peak memory consumption was 29.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2220.98 ms. Allocated memory is still 321.9 MB. Free memory was 282.4 MB in the beginning and 185.3 MB in the end (delta: 97.1 MB). Peak memory consumption was 97.1 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 37 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 99 SDtfs, 4 SDslu, 185 SDs, 0 SdLazy, 74 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 4992 SizeOfPredicates, 52 NumberOfNonLiveVariables, 995 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 25/26 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/toChurch05.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-41-22-221.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/toChurch05.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-41-22-221.csv Received shutdown request...