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/binomial02.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:38:21,262 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:38:21,263 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:38:21,275 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:38:21,275 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:38:21,276 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:38:21,278 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:38:21,279 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:38:21,281 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:38:21,282 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:38:21,283 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:38:21,283 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:38:21,284 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:38:21,285 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:38:21,286 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:38:21,289 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:38:21,291 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:38:21,293 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:38:21,297 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:38:21,298 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:38:21,299 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:38:21,301 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:38:21,311 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:38:21,311 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:38:21,312 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:38:21,313 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:38:21,313 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:38:21,314 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:38:21,319 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:38:21,319 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:38:21,319 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:38:21,320 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:38:21,320 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:38:21,321 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:38:21,322 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:38:21,323 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 11:38:21,336 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:38:21,337 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:38:21,337 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:38:21,337 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:38:21,339 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:38:21,339 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:38:21,339 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:38:21,339 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:38:21,339 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:38:21,340 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:38:21,340 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:38:21,340 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:38:21,340 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:38:21,340 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:38:21,341 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:38:21,341 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:38:21,341 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:38:21,341 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:38:21,341 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:38:21,346 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:38:21,347 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:38:21,402 INFO ]: Repository-Root is: /tmp [2018-06-22 11:38:21,421 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:38:21,428 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:38:21,429 INFO ]: Initializing SmtParser... [2018-06-22 11:38:21,430 INFO ]: SmtParser initialized [2018-06-22 11:38:21,431 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/binomial02.smt2 [2018-06-22 11:38:21,432 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 11:38:21,516 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/binomial02.smt2 unknown [2018-06-22 11:38:22,108 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/binomial02.smt2 [2018-06-22 11:38:22,113 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:38:22,118 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:38:22,118 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:38:22,119 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:38:22,119 INFO ]: ChcToBoogie initialized [2018-06-22 11:38:22,122 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:38:22" (1/1) ... [2018-06-22 11:38:22,178 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:38:22 Unit [2018-06-22 11:38:22,178 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:38:22,179 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:38:22,179 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:38:22,179 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:38:22,201 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:38:22" (1/1) ... [2018-06-22 11:38:22,202 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:38:22" (1/1) ... [2018-06-22 11:38:22,221 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:38:22" (1/1) ... [2018-06-22 11:38:22,221 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:38:22" (1/1) ... [2018-06-22 11:38:22,235 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:38:22" (1/1) ... [2018-06-22 11:38:22,245 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:38:22" (1/1) ... [2018-06-22 11:38:22,247 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:38:22" (1/1) ... [2018-06-22 11:38:22,260 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:38:22,260 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:38:22,260 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:38:22,260 INFO ]: RCFGBuilder initialized [2018-06-22 11:38:22,261 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:38:22" (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 11:38:22,280 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:38:22,280 INFO ]: Found specification of procedure False [2018-06-22 11:38:22,280 INFO ]: Found implementation of procedure False [2018-06-22 11:38:22,280 INFO ]: Specification and implementation of procedure failDLRunknownCLN30 given in one single declaration [2018-06-22 11:38:22,280 INFO ]: Found specification of procedure failDLRunknownCLN30 [2018-06-22 11:38:22,280 INFO ]: Found implementation of procedure failDLRunknownCLN30 [2018-06-22 11:38:22,280 INFO ]: Specification and implementation of procedure bin_1030DLRunknownCLN17 given in one single declaration [2018-06-22 11:38:22,280 INFO ]: Found specification of procedure bin_1030DLRunknownCLN17 [2018-06-22 11:38:22,280 INFO ]: Found implementation of procedure bin_1030DLRunknownCLN17 [2018-06-22 11:38:22,280 INFO ]: Specification and implementation of procedure bin_without_checking_1089DLRunknownCLN27 given in one single declaration [2018-06-22 11:38:22,280 INFO ]: Found specification of procedure bin_without_checking_1089DLRunknownCLN27 [2018-06-22 11:38:22,280 INFO ]: Found implementation of procedure bin_without_checking_1089DLRunknownCLN27 [2018-06-22 11:38:22,280 INFO ]: Specification and implementation of procedure bin_1030DLRunknownCLN18 given in one single declaration [2018-06-22 11:38:22,280 INFO ]: Found specification of procedure bin_1030DLRunknownCLN18 [2018-06-22 11:38:22,280 INFO ]: Found implementation of procedure bin_1030DLRunknownCLN18 [2018-06-22 11:38:22,280 INFO ]: Specification and implementation of procedure bin_1030DLRunknownCLN9 given in one single declaration [2018-06-22 11:38:22,280 INFO ]: Found specification of procedure bin_1030DLRunknownCLN9 [2018-06-22 11:38:22,280 INFO ]: Found implementation of procedure bin_1030DLRunknownCLN9 [2018-06-22 11:38:22,280 INFO ]: Specification and implementation of procedure bin_1030DLRunknownCLN8 given in one single declaration [2018-06-22 11:38:22,280 INFO ]: Found specification of procedure bin_1030DLRunknownCLN8 [2018-06-22 11:38:22,280 INFO ]: Found implementation of procedure bin_1030DLRunknownCLN8 [2018-06-22 11:38:22,281 INFO ]: Specification and implementation of procedure botDLRunknownCLN29 given in one single declaration [2018-06-22 11:38:22,281 INFO ]: Found specification of procedure botDLRunknownCLN29 [2018-06-22 11:38:22,281 INFO ]: Found implementation of procedure botDLRunknownCLN29 [2018-06-22 11:38:22,281 INFO ]: Specification and implementation of procedure failDLRunknownCLN31 given in one single declaration [2018-06-22 11:38:22,281 INFO ]: Found specification of procedure failDLRunknownCLN31 [2018-06-22 11:38:22,281 INFO ]: Found implementation of procedure failDLRunknownCLN31 [2018-06-22 11:38:22,281 INFO ]: Specification and implementation of procedure bin_without_checking_1089DLRunknownCLN26 given in one single declaration [2018-06-22 11:38:22,281 INFO ]: Found specification of procedure bin_without_checking_1089DLRunknownCLN26 [2018-06-22 11:38:22,281 INFO ]: Found implementation of procedure bin_without_checking_1089DLRunknownCLN26 [2018-06-22 11:38:22,281 INFO ]: Specification and implementation of procedure main_1033DLRunknownCLN37 given in one single declaration [2018-06-22 11:38:22,281 INFO ]: Found specification of procedure main_1033DLRunknownCLN37 [2018-06-22 11:38:22,281 INFO ]: Found implementation of procedure main_1033DLRunknownCLN37 [2018-06-22 11:38:22,281 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:38:22,281 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:38:22,281 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 11:38:23,385 INFO ]: Using library mode [2018-06-22 11:38:23,386 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:38:23 BoogieIcfgContainer [2018-06-22 11:38:23,386 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:38:23,388 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:38:23,388 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:38:23,391 INFO ]: TraceAbstraction initialized [2018-06-22 11:38:23,391 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:38:22" (1/3) ... [2018-06-22 11:38:23,392 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da7c1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:38:23, skipping insertion in model container [2018-06-22 11:38:23,392 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:38:22" (2/3) ... [2018-06-22 11:38:23,392 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da7c1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:38:23, skipping insertion in model container [2018-06-22 11:38:23,392 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:38:23" (3/3) ... [2018-06-22 11:38:23,394 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:38:23,404 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:38:23,412 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:38:23,465 INFO ]: Using default assertion order modulation [2018-06-22 11:38:23,465 INFO ]: Interprodecural is true [2018-06-22 11:38:23,465 INFO ]: Hoare is false [2018-06-22 11:38:23,465 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:38:23,465 INFO ]: Backedges is TWOTRACK [2018-06-22 11:38:23,466 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:38:23,466 INFO ]: Difference is false [2018-06-22 11:38:23,466 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:38:23,466 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:38:23,497 INFO ]: Start isEmpty. Operand 70 states. [2018-06-22 11:38:23,513 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:38:23,513 INFO ]: Found error trace [2018-06-22 11:38:23,514 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:38:23,514 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:38:23,520 INFO ]: Analyzing trace with hash 371789576, now seen corresponding path program 1 times [2018-06-22 11:38:23,522 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:38:23,522 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:38:23,572 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:38:23,572 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:38:23,572 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:38:23,590 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:38:23,628 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:38:23,630 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:38:23,631 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:38:23,633 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:38:23,669 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:38:23,670 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:38:23,673 INFO ]: Start difference. First operand 70 states. Second operand 2 states. [2018-06-22 11:38:23,715 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:38:23,715 INFO ]: Finished difference Result 59 states and 81 transitions. [2018-06-22 11:38:23,715 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:38:23,716 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:38:23,717 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:38:23,731 INFO ]: With dead ends: 59 [2018-06-22 11:38:23,732 INFO ]: Without dead ends: 54 [2018-06-22 11:38:23,734 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 11:38:23,751 INFO ]: Start minimizeSevpa. Operand 54 states. [2018-06-22 11:38:23,781 INFO ]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-06-22 11:38:23,782 INFO ]: Start removeUnreachable. Operand 54 states. [2018-06-22 11:38:23,785 INFO ]: Finished removeUnreachable. Reduced from 54 states to 54 states and 75 transitions. [2018-06-22 11:38:23,787 INFO ]: Start accepts. Automaton has 54 states and 75 transitions. Word has length 5 [2018-06-22 11:38:23,787 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:38:23,787 INFO ]: Abstraction has 54 states and 75 transitions. [2018-06-22 11:38:23,787 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:38:23,787 INFO ]: Start isEmpty. Operand 54 states and 75 transitions. [2018-06-22 11:38:23,792 INFO ]: Finished isEmpty. Found accepting run of length 34 [2018-06-22 11:38:23,792 INFO ]: Found error trace [2018-06-22 11:38:23,792 INFO ]: trace histogram [2, 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, 1] [2018-06-22 11:38:23,792 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:38:23,792 INFO ]: Analyzing trace with hash -1301547647, now seen corresponding path program 1 times [2018-06-22 11:38:23,792 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:38:23,792 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:38:23,794 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:38:23,794 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:38:23,794 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:38:23,880 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:38:24,422 INFO ]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:38:24,422 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:38:24,422 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 11:38:24,424 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:38:24,424 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:38:24,425 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:38:24,425 INFO ]: Start difference. First operand 54 states and 75 transitions. Second operand 6 states. [2018-06-22 11:38:24,853 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:38:24,854 INFO ]: Finished difference Result 59 states and 91 transitions. [2018-06-22 11:38:24,854 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:38:24,854 INFO ]: Start accepts. Automaton has 6 states. Word has length 33 [2018-06-22 11:38:24,854 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:38:24,856 INFO ]: With dead ends: 59 [2018-06-22 11:38:24,856 INFO ]: Without dead ends: 59 [2018-06-22 11:38:24,857 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:38:24,857 INFO ]: Start minimizeSevpa. Operand 59 states. [2018-06-22 11:38:24,872 INFO ]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-06-22 11:38:24,872 INFO ]: Start removeUnreachable. Operand 59 states. [2018-06-22 11:38:24,876 INFO ]: Finished removeUnreachable. Reduced from 59 states to 59 states and 91 transitions. [2018-06-22 11:38:24,943 INFO ]: Start accepts. Automaton has 59 states and 91 transitions. Word has length 33 [2018-06-22 11:38:24,943 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:38:24,943 INFO ]: Abstraction has 59 states and 91 transitions. [2018-06-22 11:38:24,943 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:38:24,943 INFO ]: Start isEmpty. Operand 59 states and 91 transitions. [2018-06-22 11:38:24,945 INFO ]: Finished isEmpty. Found accepting run of length 38 [2018-06-22 11:38:24,945 INFO ]: Found error trace [2018-06-22 11:38:24,946 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, 1, 1, 1, 1] [2018-06-22 11:38:24,946 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:38:24,946 INFO ]: Analyzing trace with hash 32289955, now seen corresponding path program 1 times [2018-06-22 11:38:24,946 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:38:24,946 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:38:24,947 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:38:24,947 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:38:24,947 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:38:24,988 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:38:25,267 WARN ]: Spent 154.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 8 [2018-06-22 11:38:25,298 INFO ]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-06-22 11:38:25,298 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:38:25,299 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:38:25,299 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:38:25,299 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:38:25,299 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:38:25,299 INFO ]: Start difference. First operand 59 states and 91 transitions. Second operand 5 states. [2018-06-22 11:38:25,671 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:38:25,671 INFO ]: Finished difference Result 65 states and 111 transitions. [2018-06-22 11:38:25,672 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:38:25,672 INFO ]: Start accepts. Automaton has 5 states. Word has length 37 [2018-06-22 11:38:25,672 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:38:25,675 INFO ]: With dead ends: 65 [2018-06-22 11:38:25,675 INFO ]: Without dead ends: 65 [2018-06-22 11:38:25,675 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:38:25,675 INFO ]: Start minimizeSevpa. Operand 65 states. [2018-06-22 11:38:25,696 INFO ]: Finished minimizeSevpa. Reduced states from 65 to 61. [2018-06-22 11:38:25,696 INFO ]: Start removeUnreachable. Operand 61 states. [2018-06-22 11:38:25,703 INFO ]: Finished removeUnreachable. Reduced from 61 states to 61 states and 98 transitions. [2018-06-22 11:38:25,703 INFO ]: Start accepts. Automaton has 61 states and 98 transitions. Word has length 37 [2018-06-22 11:38:25,704 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:38:25,704 INFO ]: Abstraction has 61 states and 98 transitions. [2018-06-22 11:38:25,704 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:38:25,704 INFO ]: Start isEmpty. Operand 61 states and 98 transitions. [2018-06-22 11:38:25,710 INFO ]: Finished isEmpty. Found accepting run of length 38 [2018-06-22 11:38:25,710 INFO ]: Found error trace [2018-06-22 11:38:25,710 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, 1, 1, 1, 1] [2018-06-22 11:38:25,710 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:38:25,711 INFO ]: Analyzing trace with hash -1757236800, now seen corresponding path program 1 times [2018-06-22 11:38:25,711 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:38:25,711 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:38:25,711 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:38:25,711 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:38:25,711 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:38:25,778 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:38:26,030 INFO ]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-06-22 11:38:26,030 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:38:26,030 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:38:26,031 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:38:26,031 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:38:26,031 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:38:26,031 INFO ]: Start difference. First operand 61 states and 98 transitions. Second operand 4 states. [2018-06-22 11:38:26,087 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:38:26,087 INFO ]: Finished difference Result 55 states and 92 transitions. [2018-06-22 11:38:26,088 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:38:26,088 INFO ]: Start accepts. Automaton has 4 states. Word has length 37 [2018-06-22 11:38:26,088 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:38:26,088 INFO ]: With dead ends: 55 [2018-06-22 11:38:26,088 INFO ]: Without dead ends: 0 [2018-06-22 11:38:26,089 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 3 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 11:38:26,089 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:38:26,089 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:38:26,089 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:38:26,089 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:38:26,089 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2018-06-22 11:38:26,089 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:38:26,089 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:38:26,089 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:38:26,089 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:38:26,089 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:38:26,093 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:38:26 BoogieIcfgContainer [2018-06-22 11:38:26,093 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:38:26,093 INFO ]: Toolchain (without parser) took 3980.52 ms. Allocated memory was 305.7 MB in the beginning and 331.4 MB in the end (delta: 25.7 MB). Free memory was 243.2 MB in the beginning and 226.6 MB in the end (delta: 16.6 MB). Peak memory consumption was 42.3 MB. Max. memory is 3.6 GB. [2018-06-22 11:38:26,094 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:38:26,095 INFO ]: ChcToBoogie took 60.30 ms. Allocated memory is still 305.7 MB. Free memory was 242.2 MB in the beginning and 240.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:38:26,095 INFO ]: Boogie Preprocessor took 80.65 ms. Allocated memory is still 305.7 MB. Free memory was 240.2 MB in the beginning and 238.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:38:26,096 INFO ]: RCFGBuilder took 1125.66 ms. Allocated memory is still 305.7 MB. Free memory was 238.3 MB in the beginning and 204.2 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:38:26,101 INFO ]: TraceAbstraction took 2705.32 ms. Allocated memory was 305.7 MB in the beginning and 331.4 MB in the end (delta: 25.7 MB). Free memory was 204.2 MB in the beginning and 226.6 MB in the end (delta: -22.4 MB). Peak memory consumption was 3.2 MB. Max. memory is 3.6 GB. [2018-06-22 11:38:26,106 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 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 60.30 ms. Allocated memory is still 305.7 MB. Free memory was 242.2 MB in the beginning and 240.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 80.65 ms. Allocated memory is still 305.7 MB. Free memory was 240.2 MB in the beginning and 238.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1125.66 ms. Allocated memory is still 305.7 MB. Free memory was 238.3 MB in the beginning and 204.2 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2705.32 ms. Allocated memory was 305.7 MB in the beginning and 331.4 MB in the end (delta: 25.7 MB). Free memory was 204.2 MB in the beginning and 226.6 MB in the end (delta: -22.4 MB). Peak memory consumption was 3.2 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 12 procedures, 70 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 280 SDtfs, 3 SDslu, 526 SDs, 0 SdLazy, 190 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 7484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 33/33 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/binomial02.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-38-26-121.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/binomial02.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-38-26-121.csv Received shutdown request...