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/alias_partial03.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:37:51,339 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:37:51,341 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:37:51,353 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:37:51,353 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:37:51,354 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:37:51,355 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:37:51,357 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:37:51,359 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:37:51,359 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:37:51,360 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:37:51,360 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:37:51,361 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:37:51,362 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:37:51,363 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:37:51,364 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:37:51,365 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:37:51,378 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:37:51,380 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:37:51,381 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:37:51,382 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:37:51,385 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:37:51,385 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:37:51,385 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:37:51,386 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:37:51,387 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:37:51,393 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:37:51,393 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:37:51,394 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:37:51,395 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:37:51,395 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:37:51,396 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:37:51,396 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:37:51,397 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:37:51,397 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:37:51,398 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 11:37:51,418 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:37:51,419 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:37:51,420 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:37:51,420 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:37:51,421 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:37:51,421 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:37:51,422 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:37:51,422 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:37:51,422 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:37:51,422 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:37:51,422 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:37:51,423 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:37:51,423 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:37:51,423 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:37:51,423 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:37:51,423 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:37:51,424 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:37:51,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:37:51,425 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:37:51,427 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:37:51,427 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:37:51,482 INFO ]: Repository-Root is: /tmp [2018-06-22 11:37:51,503 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:37:51,510 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:37:51,511 INFO ]: Initializing SmtParser... [2018-06-22 11:37:51,512 INFO ]: SmtParser initialized [2018-06-22 11:37:51,513 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/alias_partial03.smt2 [2018-06-22 11:37:51,514 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 11:37:51,610 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/alias_partial03.smt2 unknown [2018-06-22 11:37:51,967 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/alias_partial03.smt2 [2018-06-22 11:37:51,972 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:37:51,977 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:37:51,978 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:37:51,978 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:37:51,978 INFO ]: ChcToBoogie initialized [2018-06-22 11:37:51,982 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:37:51" (1/1) ... [2018-06-22 11:37:52,058 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:52 Unit [2018-06-22 11:37:52,059 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:37:52,059 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:37:52,059 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:37:52,059 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:37:52,090 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:52" (1/1) ... [2018-06-22 11:37:52,090 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:52" (1/1) ... [2018-06-22 11:37:52,109 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:52" (1/1) ... [2018-06-22 11:37:52,109 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:52" (1/1) ... [2018-06-22 11:37:52,113 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:52" (1/1) ... [2018-06-22 11:37:52,118 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:52" (1/1) ... [2018-06-22 11:37:52,120 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:52" (1/1) ... [2018-06-22 11:37:52,122 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:37:52,122 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:37:52,122 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:37:52,122 INFO ]: RCFGBuilder initialized [2018-06-22 11:37:52,123 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:52" (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 11:37:52,180 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:37:52,180 INFO ]: Found specification of procedure False [2018-06-22 11:37:52,180 INFO ]: Found implementation of procedure False [2018-06-22 11:37:52,180 INFO ]: Specification and implementation of procedure failDLRunknownCLN24 given in one single declaration [2018-06-22 11:37:52,180 INFO ]: Found specification of procedure failDLRunknownCLN24 [2018-06-22 11:37:52,180 INFO ]: Found implementation of procedure failDLRunknownCLN24 [2018-06-22 11:37:52,180 INFO ]: Specification and implementation of procedure f_1030DLRunknownCLN12 given in one single declaration [2018-06-22 11:37:52,180 INFO ]: Found specification of procedure f_1030DLRunknownCLN12 [2018-06-22 11:37:52,180 INFO ]: Found implementation of procedure f_1030DLRunknownCLN12 [2018-06-22 11:37:52,180 INFO ]: Specification and implementation of procedure f_without_checking_1098DLRunknownCLN19 given in one single declaration [2018-06-22 11:37:52,180 INFO ]: Found specification of procedure f_without_checking_1098DLRunknownCLN19 [2018-06-22 11:37:52,180 INFO ]: Found implementation of procedure f_without_checking_1098DLRunknownCLN19 [2018-06-22 11:37:52,180 INFO ]: Specification and implementation of procedure main_1035DLRunknownCLN32 given in one single declaration [2018-06-22 11:37:52,180 INFO ]: Found specification of procedure main_1035DLRunknownCLN32 [2018-06-22 11:37:52,180 INFO ]: Found implementation of procedure main_1035DLRunknownCLN32 [2018-06-22 11:37:52,180 INFO ]: Specification and implementation of procedure f_1030DLRunknownCLN5 given in one single declaration [2018-06-22 11:37:52,180 INFO ]: Found specification of procedure f_1030DLRunknownCLN5 [2018-06-22 11:37:52,180 INFO ]: Found implementation of procedure f_1030DLRunknownCLN5 [2018-06-22 11:37:52,180 INFO ]: Specification and implementation of procedure botDLRunknownCLN2 given in one single declaration [2018-06-22 11:37:52,180 INFO ]: Found specification of procedure botDLRunknownCLN2 [2018-06-22 11:37:52,180 INFO ]: Found implementation of procedure botDLRunknownCLN2 [2018-06-22 11:37:52,180 INFO ]: Specification and implementation of procedure failDLRunknownCLN25 given in one single declaration [2018-06-22 11:37:52,180 INFO ]: Found specification of procedure failDLRunknownCLN25 [2018-06-22 11:37:52,180 INFO ]: Found implementation of procedure failDLRunknownCLN25 [2018-06-22 11:37:52,181 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:37:52,181 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:37:52,181 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 11:37:52,527 INFO ]: Using library mode [2018-06-22 11:37:52,527 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:37:52 BoogieIcfgContainer [2018-06-22 11:37:52,527 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:37:52,529 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:37:52,529 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:37:52,535 INFO ]: TraceAbstraction initialized [2018-06-22 11:37:52,536 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:37:51" (1/3) ... [2018-06-22 11:37:52,536 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2d9b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:37:52, skipping insertion in model container [2018-06-22 11:37:52,536 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:37:52" (2/3) ... [2018-06-22 11:37:52,538 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2d9b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:37:52, skipping insertion in model container [2018-06-22 11:37:52,538 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:37:52" (3/3) ... [2018-06-22 11:37:52,540 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:37:52,550 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:37:52,562 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:37:52,615 INFO ]: Using default assertion order modulation [2018-06-22 11:37:52,615 INFO ]: Interprodecural is true [2018-06-22 11:37:52,616 INFO ]: Hoare is false [2018-06-22 11:37:52,616 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:37:52,617 INFO ]: Backedges is TWOTRACK [2018-06-22 11:37:52,617 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:37:52,617 INFO ]: Difference is false [2018-06-22 11:37:52,617 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:37:52,617 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:37:52,642 INFO ]: Start isEmpty. Operand 41 states. [2018-06-22 11:37:52,666 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:37:52,666 INFO ]: Found error trace [2018-06-22 11:37:52,667 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:37:52,667 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:37:52,673 INFO ]: Analyzing trace with hash 229335860, now seen corresponding path program 1 times [2018-06-22 11:37:52,675 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:37:52,676 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:37:52,721 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:37:52,721 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:37:52,721 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:37:52,734 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:37:52,757 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:37:52,758 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:37:52,758 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:37:52,760 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:37:52,772 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:37:52,772 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:37:52,775 INFO ]: Start difference. First operand 41 states. Second operand 2 states. [2018-06-22 11:37:52,803 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:37:52,839 INFO ]: Finished difference Result 33 states and 37 transitions. [2018-06-22 11:37:52,839 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:37:52,841 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:37:52,841 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:37:52,866 INFO ]: With dead ends: 33 [2018-06-22 11:37:52,866 INFO ]: Without dead ends: 29 [2018-06-22 11:37:52,868 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 11:37:52,897 INFO ]: Start minimizeSevpa. Operand 29 states. [2018-06-22 11:37:52,945 INFO ]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-06-22 11:37:52,962 INFO ]: Start removeUnreachable. Operand 29 states. [2018-06-22 11:37:52,964 INFO ]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-06-22 11:37:52,965 INFO ]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 5 [2018-06-22 11:37:52,965 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:37:52,965 INFO ]: Abstraction has 29 states and 33 transitions. [2018-06-22 11:37:52,965 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:37:52,965 INFO ]: Start isEmpty. Operand 29 states and 33 transitions. [2018-06-22 11:37:52,967 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:37:52,967 INFO ]: Found error trace [2018-06-22 11:37:52,967 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:37:52,968 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:37:52,970 INFO ]: Analyzing trace with hash 814327285, now seen corresponding path program 1 times [2018-06-22 11:37:52,970 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:37:52,970 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:37:52,971 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:37:52,971 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:37:52,971 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:37:53,064 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:37:53,306 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:37:53,306 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:37:53,306 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:37:53,308 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:37:53,308 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:37:53,308 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:37:53,309 INFO ]: Start difference. First operand 29 states and 33 transitions. Second operand 4 states. [2018-06-22 11:37:53,383 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:37:53,383 INFO ]: Finished difference Result 23 states and 27 transitions. [2018-06-22 11:37:53,384 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:37:53,384 INFO ]: Start accepts. Automaton has 4 states. Word has length 21 [2018-06-22 11:37:53,384 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:37:53,384 INFO ]: With dead ends: 23 [2018-06-22 11:37:53,384 INFO ]: Without dead ends: 0 [2018-06-22 11:37:53,385 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 11:37:53,385 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:37:53,385 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:37:53,385 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:37:53,385 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:37:53,385 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-06-22 11:37:53,385 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:37:53,385 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:37:53,385 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:37:53,385 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:37:53,385 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:37:53,391 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:37:53 BoogieIcfgContainer [2018-06-22 11:37:53,391 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:37:53,392 INFO ]: Toolchain (without parser) took 1420.02 ms. Allocated memory is still 308.8 MB. Free memory was 255.4 MB in the beginning and 213.4 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 3.6 GB. [2018-06-22 11:37:53,394 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 273.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:37:53,394 INFO ]: ChcToBoogie took 81.34 ms. Allocated memory is still 308.8 MB. Free memory was 255.4 MB in the beginning and 253.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:37:53,395 INFO ]: Boogie Preprocessor took 62.33 ms. Allocated memory is still 308.8 MB. Free memory was 253.4 MB in the beginning and 251.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:37:53,395 INFO ]: RCFGBuilder took 405.32 ms. Allocated memory is still 308.8 MB. Free memory was 251.4 MB in the beginning and 235.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:37:53,398 INFO ]: TraceAbstraction took 862.49 ms. Allocated memory is still 308.8 MB. Free memory was 235.4 MB in the beginning and 213.4 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 3.6 GB. [2018-06-22 11:37:53,407 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 273.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 81.34 ms. Allocated memory is still 308.8 MB. Free memory was 255.4 MB in the beginning and 253.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 62.33 ms. Allocated memory is still 308.8 MB. Free memory was 253.4 MB in the beginning and 251.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 405.32 ms. Allocated memory is still 308.8 MB. Free memory was 251.4 MB in the beginning and 235.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 862.49 ms. Allocated memory is still 308.8 MB. Free memory was 235.4 MB in the beginning and 213.4 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 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 9 procedures, 41 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 62 SDtfs, 0 SDslu, 43 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1056 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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/alias_partial03.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-37-53-428.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/alias_partial03.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-37-53-428.csv Received shutdown request...