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_Goto.epf -i /storage/chc-comp/hopv/lia/termination/binomial05.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:54:31,351 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:54:31,356 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:54:31,370 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:54:31,371 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:54:31,372 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:54:31,376 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:54:31,379 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:54:31,380 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:54:31,382 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:54:31,383 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:54:31,383 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:54:31,384 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:54:31,386 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:54:31,390 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:54:31,391 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:54:31,392 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:54:31,400 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:54:31,401 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:54:31,408 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:54:31,410 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:54:31,412 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:54:31,412 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:54:31,412 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:54:31,413 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:54:31,416 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:54:31,417 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:54:31,417 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:54:31,418 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:54:31,418 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:54:31,419 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:54:31,420 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:54:31,420 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:54:31,428 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:54:31,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:54:31,429 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:54:31,451 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:54:31,452 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:54:31,452 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:54:31,452 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:54:31,453 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:54:31,454 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:54:31,454 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:54:31,454 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:54:31,454 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:54:31,454 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:54:31,455 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:54:31,455 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:54:31,456 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:54:31,456 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:54:31,456 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:54:31,456 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:54:31,456 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:54:31,458 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:54:31,458 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:54:31,504 INFO ]: Repository-Root is: /tmp [2018-06-22 01:54:31,520 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:54:31,526 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:54:31,528 INFO ]: Initializing SmtParser... [2018-06-22 01:54:31,528 INFO ]: SmtParser initialized [2018-06-22 01:54:31,528 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/binomial05.smt2 [2018-06-22 01:54:31,530 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 01:54:31,626 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/binomial05.smt2 unknown [2018-06-22 01:54:32,267 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/binomial05.smt2 [2018-06-22 01:54:32,278 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:54:32,285 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:54:32,285 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:54:32,286 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:54:32,286 INFO ]: ChcToBoogie initialized [2018-06-22 01:54:32,291 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:54:32" (1/1) ... [2018-06-22 01:54:32,367 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:32 Unit [2018-06-22 01:54:32,367 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:54:32,368 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:54:32,368 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:54:32,368 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:54:32,393 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:32" (1/1) ... [2018-06-22 01:54:32,393 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:32" (1/1) ... [2018-06-22 01:54:32,419 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:32" (1/1) ... [2018-06-22 01:54:32,419 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:32" (1/1) ... [2018-06-22 01:54:32,437 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:32" (1/1) ... [2018-06-22 01:54:32,444 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:32" (1/1) ... [2018-06-22 01:54:32,456 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:32" (1/1) ... [2018-06-22 01:54:32,463 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:54:32,464 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:54:32,464 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:54:32,464 INFO ]: RCFGBuilder initialized [2018-06-22 01:54:32,465 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:32" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:54:32,480 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:54:32,480 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:54:32,480 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:54:32,480 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:54:32,480 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:54:32,480 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 01:54:33,483 INFO ]: Using library mode [2018-06-22 01:54:33,484 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:54:33 BoogieIcfgContainer [2018-06-22 01:54:33,484 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:54:33,485 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:54:33,485 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:54:33,492 INFO ]: TraceAbstraction initialized [2018-06-22 01:54:33,492 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:54:32" (1/3) ... [2018-06-22 01:54:33,493 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586e8016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:54:33, skipping insertion in model container [2018-06-22 01:54:33,493 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:32" (2/3) ... [2018-06-22 01:54:33,493 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586e8016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:54:33, skipping insertion in model container [2018-06-22 01:54:33,493 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:54:33" (3/3) ... [2018-06-22 01:54:33,496 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:54:33,504 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:54:33,514 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:54:33,562 INFO ]: Using default assertion order modulation [2018-06-22 01:54:33,562 INFO ]: Interprodecural is true [2018-06-22 01:54:33,562 INFO ]: Hoare is false [2018-06-22 01:54:33,562 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:54:33,562 INFO ]: Backedges is TWOTRACK [2018-06-22 01:54:33,562 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:54:33,562 INFO ]: Difference is false [2018-06-22 01:54:33,562 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:54:33,562 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:54:33,587 INFO ]: Start isEmpty. Operand 47 states. [2018-06-22 01:54:33,607 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 01:54:33,607 INFO ]: Found error trace [2018-06-22 01:54:33,609 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:33,610 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:33,615 INFO ]: Analyzing trace with hash -1194827595, now seen corresponding path program 1 times [2018-06-22 01:54:33,617 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:33,618 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:33,664 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:33,665 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:33,665 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:33,718 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:33,947 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:54:33,949 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:33,950 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:54:33,953 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:54:33,969 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:54:33,969 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:54:33,974 INFO ]: Start difference. First operand 47 states. Second operand 4 states. [2018-06-22 01:54:35,073 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:35,074 INFO ]: Finished difference Result 83 states and 131 transitions. [2018-06-22 01:54:35,074 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:54:35,075 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-22 01:54:35,075 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:35,091 INFO ]: With dead ends: 83 [2018-06-22 01:54:35,091 INFO ]: Without dead ends: 79 [2018-06-22 01:54:35,094 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:54:35,113 INFO ]: Start minimizeSevpa. Operand 79 states. [2018-06-22 01:54:35,157 INFO ]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-06-22 01:54:35,158 INFO ]: Start removeUnreachable. Operand 79 states. [2018-06-22 01:54:35,165 INFO ]: Finished removeUnreachable. Reduced from 79 states to 79 states and 125 transitions. [2018-06-22 01:54:35,167 INFO ]: Start accepts. Automaton has 79 states and 125 transitions. Word has length 10 [2018-06-22 01:54:35,167 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:35,167 INFO ]: Abstraction has 79 states and 125 transitions. [2018-06-22 01:54:35,167 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:54:35,167 INFO ]: Start isEmpty. Operand 79 states and 125 transitions. [2018-06-22 01:54:35,172 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 01:54:35,172 INFO ]: Found error trace [2018-06-22 01:54:35,172 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:35,172 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:35,172 INFO ]: Analyzing trace with hash -482752839, now seen corresponding path program 1 times [2018-06-22 01:54:35,172 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:35,172 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:35,173 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:35,173 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:35,173 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:35,186 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:35,273 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:54:35,273 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:35,273 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:54:35,275 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:54:35,275 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:54:35,275 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:54:35,275 INFO ]: Start difference. First operand 79 states and 125 transitions. Second operand 4 states. [2018-06-22 01:54:35,893 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:35,893 INFO ]: Finished difference Result 115 states and 182 transitions. [2018-06-22 01:54:35,894 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:54:35,895 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-22 01:54:35,895 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:35,906 INFO ]: With dead ends: 115 [2018-06-22 01:54:35,906 INFO ]: Without dead ends: 115 [2018-06-22 01:54:35,907 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:54:35,907 INFO ]: Start minimizeSevpa. Operand 115 states. [2018-06-22 01:54:35,932 INFO ]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-06-22 01:54:35,932 INFO ]: Start removeUnreachable. Operand 115 states. [2018-06-22 01:54:35,937 INFO ]: Finished removeUnreachable. Reduced from 115 states to 115 states and 182 transitions. [2018-06-22 01:54:35,937 INFO ]: Start accepts. Automaton has 115 states and 182 transitions. Word has length 10 [2018-06-22 01:54:35,937 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:35,937 INFO ]: Abstraction has 115 states and 182 transitions. [2018-06-22 01:54:35,937 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:54:35,937 INFO ]: Start isEmpty. Operand 115 states and 182 transitions. [2018-06-22 01:54:35,940 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 01:54:35,940 INFO ]: Found error trace [2018-06-22 01:54:35,940 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:35,941 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:35,941 INFO ]: Analyzing trace with hash 1841455378, now seen corresponding path program 1 times [2018-06-22 01:54:35,941 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:35,941 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:35,942 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:35,942 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:35,942 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:35,951 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:36,020 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:54:36,020 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:36,020 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:54:36,021 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:54:36,021 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:54:36,021 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:54:36,021 INFO ]: Start difference. First operand 115 states and 182 transitions. Second operand 4 states. [2018-06-22 01:54:36,334 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:36,334 INFO ]: Finished difference Result 134 states and 209 transitions. [2018-06-22 01:54:36,335 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:54:36,335 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 01:54:36,335 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:36,338 INFO ]: With dead ends: 134 [2018-06-22 01:54:36,338 INFO ]: Without dead ends: 134 [2018-06-22 01:54:36,338 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:54:36,338 INFO ]: Start minimizeSevpa. Operand 134 states. [2018-06-22 01:54:36,361 INFO ]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-06-22 01:54:36,361 INFO ]: Start removeUnreachable. Operand 134 states. [2018-06-22 01:54:36,366 INFO ]: Finished removeUnreachable. Reduced from 134 states to 134 states and 209 transitions. [2018-06-22 01:54:36,366 INFO ]: Start accepts. Automaton has 134 states and 209 transitions. Word has length 13 [2018-06-22 01:54:36,366 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:36,367 INFO ]: Abstraction has 134 states and 209 transitions. [2018-06-22 01:54:36,367 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:54:36,367 INFO ]: Start isEmpty. Operand 134 states and 209 transitions. [2018-06-22 01:54:36,370 INFO ]: Finished isEmpty. Found accepting run of length 16 [2018-06-22 01:54:36,370 INFO ]: Found error trace [2018-06-22 01:54:36,370 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:36,370 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:36,370 INFO ]: Analyzing trace with hash 100332096, now seen corresponding path program 1 times [2018-06-22 01:54:36,370 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:36,371 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:36,371 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:36,371 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:36,371 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:36,384 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:36,440 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:54:36,440 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:36,440 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:54:36,440 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:54:36,441 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:54:36,441 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:54:36,441 INFO ]: Start difference. First operand 134 states and 209 transitions. Second operand 4 states. [2018-06-22 01:54:36,876 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:36,876 INFO ]: Finished difference Result 153 states and 236 transitions. [2018-06-22 01:54:36,877 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:54:36,877 INFO ]: Start accepts. Automaton has 4 states. Word has length 15 [2018-06-22 01:54:36,877 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:36,881 INFO ]: With dead ends: 153 [2018-06-22 01:54:36,881 INFO ]: Without dead ends: 153 [2018-06-22 01:54:36,881 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:54:36,882 INFO ]: Start minimizeSevpa. Operand 153 states. [2018-06-22 01:54:36,904 INFO ]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-06-22 01:54:36,904 INFO ]: Start removeUnreachable. Operand 153 states. [2018-06-22 01:54:36,910 INFO ]: Finished removeUnreachable. Reduced from 153 states to 153 states and 236 transitions. [2018-06-22 01:54:36,911 INFO ]: Start accepts. Automaton has 153 states and 236 transitions. Word has length 15 [2018-06-22 01:54:36,911 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:36,911 INFO ]: Abstraction has 153 states and 236 transitions. [2018-06-22 01:54:36,911 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:54:36,911 INFO ]: Start isEmpty. Operand 153 states and 236 transitions. [2018-06-22 01:54:36,915 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 01:54:36,915 INFO ]: Found error trace [2018-06-22 01:54:36,915 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:36,915 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:36,915 INFO ]: Analyzing trace with hash 1794736673, now seen corresponding path program 1 times [2018-06-22 01:54:36,915 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:36,915 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:36,916 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:36,916 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:36,916 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:36,957 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:37,088 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:54:37,088 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:37,088 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 01:54:37,089 INFO ]: Interpolant automaton has 3 states [2018-06-22 01:54:37,089 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 01:54:37,089 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:54:37,089 INFO ]: Start difference. First operand 153 states and 236 transitions. Second operand 3 states. [2018-06-22 01:54:37,162 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:37,162 INFO ]: Finished difference Result 147 states and 222 transitions. [2018-06-22 01:54:37,162 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 01:54:37,162 INFO ]: Start accepts. Automaton has 3 states. Word has length 17 [2018-06-22 01:54:37,162 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:37,162 INFO ]: With dead ends: 147 [2018-06-22 01:54:37,162 INFO ]: Without dead ends: 0 [2018-06-22 01:54:37,162 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:54:37,162 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:54:37,163 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:54:37,163 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:54:37,163 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:54:37,163 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-06-22 01:54:37,163 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:37,163 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:54:37,163 INFO ]: Interpolant automaton has 3 states. [2018-06-22 01:54:37,163 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:54:37,163 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:54:37,168 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:54:37 BoogieIcfgContainer [2018-06-22 01:54:37,168 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:54:37,168 INFO ]: Toolchain (without parser) took 4889.81 ms. Allocated memory was 308.3 MB in the beginning and 349.7 MB in the end (delta: 41.4 MB). Free memory was 232.7 MB in the beginning and 274.8 MB in the end (delta: -42.0 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:54:37,170 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 308.3 MB. Free memory is still 270.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:54:37,170 INFO ]: ChcToBoogie took 81.99 ms. Allocated memory is still 308.3 MB. Free memory was 232.7 MB in the beginning and 230.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:37,171 INFO ]: Boogie Preprocessor took 95.15 ms. Allocated memory is still 308.3 MB. Free memory was 230.7 MB in the beginning and 226.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:37,171 INFO ]: RCFGBuilder took 1020.34 ms. Allocated memory was 308.3 MB in the beginning and 324.0 MB in the end (delta: 15.7 MB). Free memory was 226.7 MB in the beginning and 283.3 MB in the end (delta: -56.6 MB). Peak memory consumption was 45.4 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:37,171 INFO ]: TraceAbstraction took 3682.43 ms. Allocated memory was 324.0 MB in the beginning and 349.7 MB in the end (delta: 25.7 MB). Free memory was 283.3 MB in the beginning and 274.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 34.3 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:37,174 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 308.3 MB. Free memory is still 270.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 81.99 ms. Allocated memory is still 308.3 MB. Free memory was 232.7 MB in the beginning and 230.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 95.15 ms. Allocated memory is still 308.3 MB. Free memory was 230.7 MB in the beginning and 226.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1020.34 ms. Allocated memory was 308.3 MB in the beginning and 324.0 MB in the end (delta: 15.7 MB). Free memory was 226.7 MB in the beginning and 283.3 MB in the end (delta: -56.6 MB). Peak memory consumption was 45.4 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3682.43 ms. Allocated memory was 324.0 MB in the beginning and 349.7 MB in the end (delta: 25.7 MB). Free memory was 283.3 MB in the beginning and 274.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 34.3 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 2 procedures, 47 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 278 SDtfs, 310 SDslu, 133 SDs, 0 SdLazy, 377 SolverSat, 188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1730 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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/binomial05.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-54-37-184.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/binomial05.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-54-37-184.csv Received shutdown request...