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/eldarica-misc/LIA/reve/016-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:17:28,904 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:17:28,906 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:17:28,919 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:17:28,919 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:17:28,920 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:17:28,921 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:17:28,924 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:17:28,926 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:17:28,926 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:17:28,928 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:17:28,928 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:17:28,929 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:17:28,930 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:17:28,932 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:17:28,933 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:17:28,935 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:17:28,943 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:17:28,945 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:17:28,946 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:17:28,949 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:17:28,952 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:17:28,952 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:17:28,952 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:17:28,953 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:17:28,955 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:17:28,956 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:17:28,956 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:17:28,957 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:17:28,957 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:17:28,961 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:17:28,961 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:17:28,962 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:17:28,962 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:17:28,963 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:17:28,963 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 11:17:28,977 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:17:28,977 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:17:28,977 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:17:28,977 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:17:28,978 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:17:28,978 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:17:28,979 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:17:28,979 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:17:28,979 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:17:28,979 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:17:28,979 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:17:28,980 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:17:28,980 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:17:28,980 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:17:28,980 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:17:28,980 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:17:28,981 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:17:28,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:17:28,981 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:17:28,985 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:17:28,985 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:17:29,047 INFO ]: Repository-Root is: /tmp [2018-06-22 11:17:29,062 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:17:29,068 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:17:29,069 INFO ]: Initializing SmtParser... [2018-06-22 11:17:29,069 INFO ]: SmtParser initialized [2018-06-22 11:17:29,070 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/016-horn.smt2 [2018-06-22 11:17:29,071 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 11:17:29,158 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/016-horn.smt2 unknown [2018-06-22 11:17:29,332 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/016-horn.smt2 [2018-06-22 11:17:29,337 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:17:29,347 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:17:29,348 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:17:29,348 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:17:29,348 INFO ]: ChcToBoogie initialized [2018-06-22 11:17:29,351 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,401 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29 Unit [2018-06-22 11:17:29,401 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:17:29,401 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:17:29,401 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:17:29,402 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:17:29,424 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,424 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,430 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,431 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,433 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,434 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,435 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,437 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:17:29,437 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:17:29,437 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:17:29,437 INFO ]: RCFGBuilder initialized [2018-06-22 11:17:29,438 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (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 11:17:29,454 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:17:29,454 INFO ]: Found specification of procedure False [2018-06-22 11:17:29,454 INFO ]: Found implementation of procedure False [2018-06-22 11:17:29,454 INFO ]: Specification and implementation of procedure INV1 given in one single declaration [2018-06-22 11:17:29,454 INFO ]: Found specification of procedure INV1 [2018-06-22 11:17:29,454 INFO ]: Found implementation of procedure INV1 [2018-06-22 11:17:29,454 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:17:29,454 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:17:29,454 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 11:17:29,761 INFO ]: Using library mode [2018-06-22 11:17:29,761 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:17:29 BoogieIcfgContainer [2018-06-22 11:17:29,761 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:17:29,763 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:17:29,763 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:17:29,766 INFO ]: TraceAbstraction initialized [2018-06-22 11:17:29,766 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:17:29" (1/3) ... [2018-06-22 11:17:29,767 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7379677f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:17:29, skipping insertion in model container [2018-06-22 11:17:29,767 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (2/3) ... [2018-06-22 11:17:29,767 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7379677f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:17:29, skipping insertion in model container [2018-06-22 11:17:29,767 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:17:29" (3/3) ... [2018-06-22 11:17:29,778 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:17:29,791 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:17:29,801 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:17:29,862 INFO ]: Using default assertion order modulation [2018-06-22 11:17:29,863 INFO ]: Interprodecural is true [2018-06-22 11:17:29,863 INFO ]: Hoare is false [2018-06-22 11:17:29,863 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:17:29,863 INFO ]: Backedges is TWOTRACK [2018-06-22 11:17:29,863 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:17:29,863 INFO ]: Difference is false [2018-06-22 11:17:29,863 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:17:29,863 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:17:29,878 INFO ]: Start isEmpty. Operand 15 states. [2018-06-22 11:17:29,888 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:17:29,889 INFO ]: Found error trace [2018-06-22 11:17:29,889 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:29,890 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:29,895 INFO ]: Analyzing trace with hash -1036880812, now seen corresponding path program 1 times [2018-06-22 11:17:29,897 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:29,897 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:29,934 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:29,934 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:29,934 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:29,980 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:30,112 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:17:30,114 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:30,115 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:17:30,116 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:17:30,126 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:17:30,127 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:30,129 INFO ]: Start difference. First operand 15 states. Second operand 4 states. [2018-06-22 11:17:30,241 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:30,241 INFO ]: Finished difference Result 15 states and 22 transitions. [2018-06-22 11:17:30,242 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:17:30,243 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:17:30,243 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:30,251 INFO ]: With dead ends: 15 [2018-06-22 11:17:30,251 INFO ]: Without dead ends: 15 [2018-06-22 11:17:30,253 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 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 11:17:30,265 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 11:17:30,286 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 11:17:30,287 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:17:30,288 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-06-22 11:17:30,290 INFO ]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 9 [2018-06-22 11:17:30,291 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:30,291 INFO ]: Abstraction has 15 states and 22 transitions. [2018-06-22 11:17:30,291 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:17:30,291 INFO ]: Start isEmpty. Operand 15 states and 22 transitions. [2018-06-22 11:17:30,292 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:17:30,292 INFO ]: Found error trace [2018-06-22 11:17:30,292 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:30,293 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:30,294 INFO ]: Analyzing trace with hash -929726366, now seen corresponding path program 1 times [2018-06-22 11:17:30,294 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:30,294 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:30,295 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:30,295 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:30,295 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:30,310 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:30,404 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:17:30,404 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:30,404 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:17:30,406 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:17:30,406 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:17:30,406 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:30,406 INFO ]: Start difference. First operand 15 states and 22 transitions. Second operand 4 states. [2018-06-22 11:17:30,632 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:30,632 INFO ]: Finished difference Result 17 states and 26 transitions. [2018-06-22 11:17:30,632 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:17:30,633 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:17:30,633 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:30,633 INFO ]: With dead ends: 17 [2018-06-22 11:17:30,633 INFO ]: Without dead ends: 17 [2018-06-22 11:17:30,634 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 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 11:17:30,634 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 11:17:30,639 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-06-22 11:17:30,639 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:17:30,640 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2018-06-22 11:17:30,640 INFO ]: Start accepts. Automaton has 15 states and 21 transitions. Word has length 13 [2018-06-22 11:17:30,640 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:30,640 INFO ]: Abstraction has 15 states and 21 transitions. [2018-06-22 11:17:30,640 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:17:30,640 INFO ]: Start isEmpty. Operand 15 states and 21 transitions. [2018-06-22 11:17:30,641 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:17:30,641 INFO ]: Found error trace [2018-06-22 11:17:30,641 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:30,641 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:30,641 INFO ]: Analyzing trace with hash -1174977219, now seen corresponding path program 1 times [2018-06-22 11:17:30,641 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:30,641 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:30,642 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:30,642 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:30,642 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:30,652 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:30,817 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:17:30,817 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:30,817 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:17:30,817 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:17:30,817 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:17:30,817 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:30,818 INFO ]: Start difference. First operand 15 states and 21 transitions. Second operand 4 states. [2018-06-22 11:17:30,881 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:30,882 INFO ]: Finished difference Result 17 states and 25 transitions. [2018-06-22 11:17:30,882 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:17:30,882 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:17:30,882 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:30,883 INFO ]: With dead ends: 17 [2018-06-22 11:17:30,883 INFO ]: Without dead ends: 17 [2018-06-22 11:17:30,883 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:30,883 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 11:17:30,887 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-06-22 11:17:30,887 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:17:30,887 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2018-06-22 11:17:30,888 INFO ]: Start accepts. Automaton has 15 states and 20 transitions. Word has length 13 [2018-06-22 11:17:30,888 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:30,888 INFO ]: Abstraction has 15 states and 20 transitions. [2018-06-22 11:17:30,888 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:17:30,888 INFO ]: Start isEmpty. Operand 15 states and 20 transitions. [2018-06-22 11:17:30,889 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:17:30,889 INFO ]: Found error trace [2018-06-22 11:17:30,889 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:30,889 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:30,889 INFO ]: Analyzing trace with hash -1420228072, now seen corresponding path program 1 times [2018-06-22 11:17:30,889 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:30,889 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:30,890 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:30,890 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:30,890 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:30,901 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:31,006 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:17:31,006 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:31,006 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:17:31,006 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:17:31,006 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:17:31,007 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:17:31,007 INFO ]: Start difference. First operand 15 states and 20 transitions. Second operand 5 states. [2018-06-22 11:17:31,142 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:31,142 INFO ]: Finished difference Result 19 states and 29 transitions. [2018-06-22 11:17:31,142 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:17:31,142 INFO ]: Start accepts. Automaton has 5 states. Word has length 13 [2018-06-22 11:17:31,143 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:31,143 INFO ]: With dead ends: 19 [2018-06-22 11:17:31,143 INFO ]: Without dead ends: 19 [2018-06-22 11:17:31,144 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:17:31,144 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:17:31,150 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-06-22 11:17:31,150 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 11:17:31,151 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2018-06-22 11:17:31,151 INFO ]: Start accepts. Automaton has 17 states and 24 transitions. Word has length 13 [2018-06-22 11:17:31,151 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:31,151 INFO ]: Abstraction has 17 states and 24 transitions. [2018-06-22 11:17:31,151 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:17:31,151 INFO ]: Start isEmpty. Operand 17 states and 24 transitions. [2018-06-22 11:17:31,154 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:17:31,154 INFO ]: Found error trace [2018-06-22 11:17:31,154 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:31,154 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:31,154 INFO ]: Analyzing trace with hash -811839066, now seen corresponding path program 1 times [2018-06-22 11:17:31,154 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:31,154 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:31,155 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:31,155 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:31,155 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:31,168 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:31,247 INFO ]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:17:31,247 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:17:31,247 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:17:31,254 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:31,288 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:31,295 INFO ]: Computing forward predicates... [2018-06-22 11:17:32,013 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:17:32,050 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:17:32,050 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 12 [2018-06-22 11:17:32,051 INFO ]: Interpolant automaton has 12 states [2018-06-22 11:17:32,051 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 11:17:32,051 INFO ]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:17:32,051 INFO ]: Start difference. First operand 17 states and 24 transitions. Second operand 12 states. [2018-06-22 11:17:32,364 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:32,364 INFO ]: Finished difference Result 21 states and 29 transitions. [2018-06-22 11:17:32,364 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 11:17:32,364 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-22 11:17:32,364 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:32,365 INFO ]: With dead ends: 21 [2018-06-22 11:17:32,365 INFO ]: Without dead ends: 20 [2018-06-22 11:17:32,365 INFO ]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2018-06-22 11:17:32,365 INFO ]: Start minimizeSevpa. Operand 20 states. [2018-06-22 11:17:32,369 INFO ]: Finished minimizeSevpa. Reduced states from 20 to 16. [2018-06-22 11:17:32,369 INFO ]: Start removeUnreachable. Operand 16 states. [2018-06-22 11:17:32,370 INFO ]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2018-06-22 11:17:32,370 INFO ]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 17 [2018-06-22 11:17:32,370 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:32,370 INFO ]: Abstraction has 16 states and 20 transitions. [2018-06-22 11:17:32,370 INFO ]: Interpolant automaton has 12 states. [2018-06-22 11:17:32,370 INFO ]: Start isEmpty. Operand 16 states and 20 transitions. [2018-06-22 11:17:32,371 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:17:32,371 INFO ]: Found error trace [2018-06-22 11:17:32,371 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:32,371 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:32,371 INFO ]: Analyzing trace with hash 425787393, now seen corresponding path program 1 times [2018-06-22 11:17:32,371 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:32,371 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:32,372 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:32,372 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:32,372 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:32,383 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:32,436 INFO ]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:17:32,436 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:17:32,436 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:17:32,443 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:32,459 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:32,461 INFO ]: Computing forward predicates... [2018-06-22 11:17:32,581 INFO ]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:17:32,600 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:17:32,601 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-22 11:17:32,601 INFO ]: Interpolant automaton has 10 states [2018-06-22 11:17:32,601 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 11:17:32,601 INFO ]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-06-22 11:17:32,601 INFO ]: Start difference. First operand 16 states and 20 transitions. Second operand 10 states. [2018-06-22 11:17:32,661 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:32,661 INFO ]: Finished difference Result 12 states and 14 transitions. [2018-06-22 11:17:32,661 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:17:32,661 INFO ]: Start accepts. Automaton has 10 states. Word has length 17 [2018-06-22 11:17:32,661 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:32,661 INFO ]: With dead ends: 12 [2018-06-22 11:17:32,661 INFO ]: Without dead ends: 0 [2018-06-22 11:17:32,662 INFO ]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:17:32,662 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:17:32,662 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:17:32,662 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:17:32,662 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:17:32,662 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-06-22 11:17:32,662 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:32,662 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:17:32,662 INFO ]: Interpolant automaton has 10 states. [2018-06-22 11:17:32,662 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:17:32,662 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:17:32,666 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:17:32 BoogieIcfgContainer [2018-06-22 11:17:32,666 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:17:32,667 INFO ]: Toolchain (without parser) took 3329.42 ms. Allocated memory was 304.6 MB in the beginning and 328.2 MB in the end (delta: 23.6 MB). Free memory was 261.0 MB in the beginning and 239.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 45.3 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:32,668 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 304.6 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:17:32,669 INFO ]: ChcToBoogie took 53.10 ms. Allocated memory is still 304.6 MB. Free memory was 261.0 MB in the beginning and 259.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:32,669 INFO ]: Boogie Preprocessor took 35.24 ms. Allocated memory is still 304.6 MB. Free memory was 259.0 MB in the beginning and 258.0 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 11:17:32,670 INFO ]: RCFGBuilder took 324.15 ms. Allocated memory is still 304.6 MB. Free memory was 258.0 MB in the beginning and 250.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:32,670 INFO ]: TraceAbstraction took 2903.54 ms. Allocated memory was 304.6 MB in the beginning and 328.2 MB in the end (delta: 23.6 MB). Free memory was 250.0 MB in the beginning and 239.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 34.4 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:32,674 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 304.6 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 53.10 ms. Allocated memory is still 304.6 MB. Free memory was 261.0 MB in the beginning and 259.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 35.24 ms. Allocated memory is still 304.6 MB. Free memory was 259.0 MB in the beginning and 258.0 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 324.15 ms. Allocated memory is still 304.6 MB. Free memory was 258.0 MB in the beginning and 250.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2903.54 ms. Allocated memory was 304.6 MB in the beginning and 328.2 MB in the end (delta: 23.6 MB). Free memory was 250.0 MB in the beginning and 239.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 34.4 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 3 procedures, 15 locations, 1 error locations. SAFE Result, 2.8s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 90 SDtfs, 13 SDslu, 147 SDs, 0 SdLazy, 221 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=4, 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, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 4980 SizeOfPredicates, 12 NumberOfNonLiveVariables, 182 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 33/45 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/016-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-17-32-685.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/016-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-17-32-685.csv Received shutdown request...