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/mochi/hors.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:33:15,640 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:33:15,642 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:33:15,653 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:33:15,653 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:33:15,654 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:33:15,658 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:33:15,660 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:33:15,661 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:33:15,662 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:33:15,662 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:33:15,663 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:33:15,663 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:33:15,664 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:33:15,669 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:33:15,670 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:33:15,672 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:33:15,683 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:33:15,684 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:33:15,685 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:33:15,686 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:33:15,689 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:33:15,689 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:33:15,689 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:33:15,690 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:33:15,691 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:33:15,697 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:33:15,698 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:33:15,699 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:33:15,699 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:33:15,699 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:33:15,700 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:33:15,700 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:33:15,701 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:33:15,701 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:33:15,703 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 11:33:15,716 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:33:15,716 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:33:15,716 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:33:15,717 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:33:15,718 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:33:15,719 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:33:15,719 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:33:15,719 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:33:15,719 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:33:15,719 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:33:15,720 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:33:15,720 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:33:15,720 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:33:15,720 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:33:15,720 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:33:15,721 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:33:15,721 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:33:15,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:33:15,721 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:33:15,726 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:33:15,726 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:33:15,765 INFO ]: Repository-Root is: /tmp [2018-06-22 11:33:15,783 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:33:15,787 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:33:15,789 INFO ]: Initializing SmtParser... [2018-06-22 11:33:15,789 INFO ]: SmtParser initialized [2018-06-22 11:33:15,790 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/hors.smt2 [2018-06-22 11:33:15,791 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 11:33:15,885 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/hors.smt2 unknown [2018-06-22 11:33:16,213 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/hors.smt2 [2018-06-22 11:33:16,218 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:33:16,223 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:33:16,224 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:33:16,224 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:33:16,224 INFO ]: ChcToBoogie initialized [2018-06-22 11:33:16,228 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:33:16" (1/1) ... [2018-06-22 11:33:16,274 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:16 Unit [2018-06-22 11:33:16,274 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:33:16,279 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:33:16,279 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:33:16,279 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:33:16,302 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:16" (1/1) ... [2018-06-22 11:33:16,302 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:16" (1/1) ... [2018-06-22 11:33:16,310 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:16" (1/1) ... [2018-06-22 11:33:16,310 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:16" (1/1) ... [2018-06-22 11:33:16,314 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:16" (1/1) ... [2018-06-22 11:33:16,319 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:16" (1/1) ... [2018-06-22 11:33:16,320 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:16" (1/1) ... [2018-06-22 11:33:16,322 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:33:16,323 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:33:16,323 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:33:16,323 INFO ]: RCFGBuilder initialized [2018-06-22 11:33:16,323 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:16" (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 11:33:16,332 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:33:16,332 INFO ]: Found specification of procedure False [2018-06-22 11:33:16,332 INFO ]: Found implementation of procedure False [2018-06-22 11:33:16,332 INFO ]: Specification and implementation of procedure aDLRunknownCLN5 given in one single declaration [2018-06-22 11:33:16,332 INFO ]: Found specification of procedure aDLRunknownCLN5 [2018-06-22 11:33:16,332 INFO ]: Found implementation of procedure aDLRunknownCLN5 [2018-06-22 11:33:16,332 INFO ]: Specification and implementation of procedure fDLRunknownCLN16 given in one single declaration [2018-06-22 11:33:16,332 INFO ]: Found specification of procedure fDLRunknownCLN16 [2018-06-22 11:33:16,332 INFO ]: Found implementation of procedure fDLRunknownCLN16 [2018-06-22 11:33:16,332 INFO ]: Specification and implementation of procedure sDLRunknownCLN19 given in one single declaration [2018-06-22 11:33:16,332 INFO ]: Found specification of procedure sDLRunknownCLN19 [2018-06-22 11:33:16,332 INFO ]: Found implementation of procedure sDLRunknownCLN19 [2018-06-22 11:33:16,332 INFO ]: Specification and implementation of procedure aDLRunknownCLN3 given in one single declaration [2018-06-22 11:33:16,333 INFO ]: Found specification of procedure aDLRunknownCLN3 [2018-06-22 11:33:16,333 INFO ]: Found implementation of procedure aDLRunknownCLN3 [2018-06-22 11:33:16,333 INFO ]: Specification and implementation of procedure aDLRunknownCLN2 given in one single declaration [2018-06-22 11:33:16,333 INFO ]: Found specification of procedure aDLRunknownCLN2 [2018-06-22 11:33:16,333 INFO ]: Found implementation of procedure aDLRunknownCLN2 [2018-06-22 11:33:16,333 INFO ]: Specification and implementation of procedure fDLRunknownCLN15 given in one single declaration [2018-06-22 11:33:16,333 INFO ]: Found specification of procedure fDLRunknownCLN15 [2018-06-22 11:33:16,333 INFO ]: Found implementation of procedure fDLRunknownCLN15 [2018-06-22 11:33:16,333 INFO ]: Specification and implementation of procedure cDLRunknownCLN12 given in one single declaration [2018-06-22 11:33:16,333 INFO ]: Found specification of procedure cDLRunknownCLN12 [2018-06-22 11:33:16,333 INFO ]: Found implementation of procedure cDLRunknownCLN12 [2018-06-22 11:33:16,333 INFO ]: Specification and implementation of procedure bDLRunknownCLN10 given in one single declaration [2018-06-22 11:33:16,333 INFO ]: Found specification of procedure bDLRunknownCLN10 [2018-06-22 11:33:16,333 INFO ]: Found implementation of procedure bDLRunknownCLN10 [2018-06-22 11:33:16,333 INFO ]: Specification and implementation of procedure bDLRunknownCLN8 given in one single declaration [2018-06-22 11:33:16,333 INFO ]: Found specification of procedure bDLRunknownCLN8 [2018-06-22 11:33:16,333 INFO ]: Found implementation of procedure bDLRunknownCLN8 [2018-06-22 11:33:16,333 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:33:16,333 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:33:16,333 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 11:33:16,676 INFO ]: Using library mode [2018-06-22 11:33:16,676 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:33:16 BoogieIcfgContainer [2018-06-22 11:33:16,677 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:33:16,681 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:33:16,681 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:33:16,684 INFO ]: TraceAbstraction initialized [2018-06-22 11:33:16,685 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:33:16" (1/3) ... [2018-06-22 11:33:16,687 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b260586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:33:16, skipping insertion in model container [2018-06-22 11:33:16,687 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:33:16" (2/3) ... [2018-06-22 11:33:16,687 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b260586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:33:16, skipping insertion in model container [2018-06-22 11:33:16,687 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:33:16" (3/3) ... [2018-06-22 11:33:16,689 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:33:16,700 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:33:16,711 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:33:16,744 INFO ]: Using default assertion order modulation [2018-06-22 11:33:16,745 INFO ]: Interprodecural is true [2018-06-22 11:33:16,745 INFO ]: Hoare is false [2018-06-22 11:33:16,745 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:33:16,745 INFO ]: Backedges is TWOTRACK [2018-06-22 11:33:16,745 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:33:16,745 INFO ]: Difference is false [2018-06-22 11:33:16,745 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:33:16,745 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:33:16,758 INFO ]: Start isEmpty. Operand 51 states. [2018-06-22 11:33:16,769 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:33:16,769 INFO ]: Found error trace [2018-06-22 11:33:16,770 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:33:16,770 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:33:16,774 INFO ]: Analyzing trace with hash 140105068, now seen corresponding path program 1 times [2018-06-22 11:33:16,775 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:33:16,775 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:33:16,806 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:16,806 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:33:16,806 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:16,820 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:33:16,840 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:33:16,842 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:33:16,842 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:33:16,843 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:33:16,856 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:33:16,856 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:33:16,859 INFO ]: Start difference. First operand 51 states. Second operand 2 states. [2018-06-22 11:33:16,884 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:33:16,884 INFO ]: Finished difference Result 49 states and 57 transitions. [2018-06-22 11:33:16,884 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:33:16,885 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:33:16,885 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:33:16,897 INFO ]: With dead ends: 49 [2018-06-22 11:33:16,898 INFO ]: Without dead ends: 49 [2018-06-22 11:33:16,900 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 11:33:16,913 INFO ]: Start minimizeSevpa. Operand 49 states. [2018-06-22 11:33:16,936 INFO ]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-06-22 11:33:16,938 INFO ]: Start removeUnreachable. Operand 49 states. [2018-06-22 11:33:16,940 INFO ]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2018-06-22 11:33:16,941 INFO ]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 5 [2018-06-22 11:33:16,941 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:33:16,941 INFO ]: Abstraction has 49 states and 57 transitions. [2018-06-22 11:33:16,941 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:33:16,941 INFO ]: Start isEmpty. Operand 49 states and 57 transitions. [2018-06-22 11:33:16,943 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:33:16,943 INFO ]: Found error trace [2018-06-22 11:33:16,943 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:33:16,943 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:33:16,943 INFO ]: Analyzing trace with hash -803290757, now seen corresponding path program 1 times [2018-06-22 11:33:16,944 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:33:16,944 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:33:16,944 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:16,944 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:33:16,944 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:16,976 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:33:17,101 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:33:17,101 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:33:17,101 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 11:33:17,103 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:33:17,103 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:33:17,103 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:33:17,104 INFO ]: Start difference. First operand 49 states and 57 transitions. Second operand 6 states. [2018-06-22 11:33:17,368 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:33:17,368 INFO ]: Finished difference Result 53 states and 65 transitions. [2018-06-22 11:33:17,368 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:33:17,368 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 11:33:17,368 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:33:17,370 INFO ]: With dead ends: 53 [2018-06-22 11:33:17,370 INFO ]: Without dead ends: 53 [2018-06-22 11:33:17,371 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:33:17,371 INFO ]: Start minimizeSevpa. Operand 53 states. [2018-06-22 11:33:17,384 INFO ]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-06-22 11:33:17,384 INFO ]: Start removeUnreachable. Operand 53 states. [2018-06-22 11:33:17,386 INFO ]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2018-06-22 11:33:17,386 INFO ]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 17 [2018-06-22 11:33:17,386 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:33:17,386 INFO ]: Abstraction has 53 states and 65 transitions. [2018-06-22 11:33:17,386 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:33:17,386 INFO ]: Start isEmpty. Operand 53 states and 65 transitions. [2018-06-22 11:33:17,389 INFO ]: Finished isEmpty. Found accepting run of length 62 [2018-06-22 11:33:17,389 INFO ]: Found error trace [2018-06-22 11:33:17,389 INFO ]: trace histogram [4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:33:17,389 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:33:17,389 INFO ]: Analyzing trace with hash 1286725462, now seen corresponding path program 1 times [2018-06-22 11:33:17,389 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:33:17,389 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:33:17,390 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:17,390 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:33:17,390 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:33:17,418 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:33:17,664 WARN ]: Spent 136.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 4 [2018-06-22 11:33:18,020 INFO ]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-06-22 11:33:18,020 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:33:18,020 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 11:33:18,020 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:33:18,020 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:33:18,021 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:33:18,021 INFO ]: Start difference. First operand 53 states and 65 transitions. Second operand 6 states. [2018-06-22 11:33:18,217 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:33:18,217 INFO ]: Finished difference Result 49 states and 61 transitions. [2018-06-22 11:33:18,218 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:33:18,218 INFO ]: Start accepts. Automaton has 6 states. Word has length 61 [2018-06-22 11:33:18,218 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:33:18,218 INFO ]: With dead ends: 49 [2018-06-22 11:33:18,218 INFO ]: Without dead ends: 0 [2018-06-22 11:33:18,219 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:33:18,219 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:33:18,219 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:33:18,219 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:33:18,219 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:33:18,219 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2018-06-22 11:33:18,219 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:33:18,219 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:33:18,219 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:33:18,219 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:33:18,219 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:33:18,224 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:33:18 BoogieIcfgContainer [2018-06-22 11:33:18,224 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:33:18,225 INFO ]: Toolchain (without parser) took 2005.96 ms. Allocated memory is still 308.8 MB. Free memory was 261.3 MB in the beginning and 198.2 MB in the end (delta: 63.1 MB). Peak memory consumption was 63.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:33:18,225 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:33:18,226 INFO ]: ChcToBoogie took 50.37 ms. Allocated memory is still 308.8 MB. Free memory was 261.3 MB in the beginning and 259.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:33:18,226 INFO ]: Boogie Preprocessor took 43.16 ms. Allocated memory is still 308.8 MB. Free memory was 259.4 MB in the beginning and 258.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 11:33:18,227 INFO ]: RCFGBuilder took 353.96 ms. Allocated memory is still 308.8 MB. Free memory was 258.4 MB in the beginning and 246.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:33:18,228 INFO ]: TraceAbstraction took 1542.74 ms. Allocated memory is still 308.8 MB. Free memory was 246.3 MB in the beginning and 198.2 MB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:33:18,237 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 308.8 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 50.37 ms. Allocated memory is still 308.8 MB. Free memory was 261.3 MB in the beginning and 259.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 43.16 ms. Allocated memory is still 308.8 MB. Free memory was 259.4 MB in the beginning and 258.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 353.96 ms. Allocated memory is still 308.8 MB. Free memory was 258.4 MB in the beginning and 246.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1542.74 ms. Allocated memory is still 308.8 MB. Free memory was 246.3 MB in the beginning and 198.2 MB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 51 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 160 SDtfs, 1 SDslu, 384 SDs, 0 SdLazy, 87 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=2, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 7556 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 43/43 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/hors.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-33-18-254.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/hors.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-33-18-254.csv Received shutdown request...