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/CE-Jones_Bohr01.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:39:21,507 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:39:21,512 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:39:21,525 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:39:21,526 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:39:21,527 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:39:21,528 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:39:21,533 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:39:21,535 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:39:21,536 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:39:21,539 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:39:21,539 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:39:21,540 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:39:21,542 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:39:21,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:39:21,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:39:21,549 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:39:21,562 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:39:21,564 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:39:21,565 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:39:21,566 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:39:21,568 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:39:21,569 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:39:21,569 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:39:21,574 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:39:21,575 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:39:21,576 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:39:21,576 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:39:21,578 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:39:21,583 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:39:21,584 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:39:21,584 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:39:21,585 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:39:21,585 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:39:21,586 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:39:21,586 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 11:39:21,599 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:39:21,599 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:39:21,602 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:39:21,602 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:39:21,603 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:39:21,603 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:39:21,604 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:39:21,604 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:39:21,604 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:39:21,604 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:39:21,604 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:39:21,604 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:39:21,604 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:39:21,604 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:39:21,605 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:39:21,605 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:39:21,605 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:39:21,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:39:21,605 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:39:21,607 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:39:21,607 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:39:21,654 INFO ]: Repository-Root is: /tmp [2018-06-22 11:39:21,668 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:39:21,673 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:39:21,674 INFO ]: Initializing SmtParser... [2018-06-22 11:39:21,675 INFO ]: SmtParser initialized [2018-06-22 11:39:21,676 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/CE-Jones_Bohr01.smt2 [2018-06-22 11:39:21,677 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 11:39:21,770 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/CE-Jones_Bohr01.smt2 unknown [2018-06-22 11:39:22,937 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/CE-Jones_Bohr01.smt2 [2018-06-22 11:39:22,942 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:39:22,947 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:39:22,948 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:39:22,948 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:39:22,948 INFO ]: ChcToBoogie initialized [2018-06-22 11:39:22,951 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:39:22" (1/1) ... [2018-06-22 11:39:23,013 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:39:23 Unit [2018-06-22 11:39:23,013 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:39:23,014 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:39:23,014 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:39:23,014 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:39:23,037 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:39:23" (1/1) ... [2018-06-22 11:39:23,037 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:39:23" (1/1) ... [2018-06-22 11:39:23,050 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:39:23" (1/1) ... [2018-06-22 11:39:23,050 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:39:23" (1/1) ... [2018-06-22 11:39:23,072 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:39:23" (1/1) ... [2018-06-22 11:39:23,093 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:39:23" (1/1) ... [2018-06-22 11:39:23,095 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:39:23" (1/1) ... [2018-06-22 11:39:23,100 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:39:23,100 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:39:23,100 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:39:23,101 INFO ]: RCFGBuilder initialized [2018-06-22 11:39:23,101 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:39:23" (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 11:39:23,116 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:39:23,116 INFO ]: Found specification of procedure False [2018-06-22 11:39:23,116 INFO ]: Found implementation of procedure False [2018-06-22 11:39:23,116 INFO ]: Specification and implementation of procedure failDLRunknownCLN225 given in one single declaration [2018-06-22 11:39:23,116 INFO ]: Found specification of procedure failDLRunknownCLN225 [2018-06-22 11:39:23,116 INFO ]: Found implementation of procedure failDLRunknownCLN225 [2018-06-22 11:39:23,117 INFO ]: Specification and implementation of procedure f2_1034DLRunknownCLN70 given in one single declaration [2018-06-22 11:39:23,117 INFO ]: Found specification of procedure f2_1034DLRunknownCLN70 [2018-06-22 11:39:23,117 INFO ]: Found implementation of procedure f2_1034DLRunknownCLN70 [2018-06-22 11:39:23,117 INFO ]: Specification and implementation of procedure f3_1038DLRunknownCLN148 given in one single declaration [2018-06-22 11:39:23,117 INFO ]: Found specification of procedure f3_1038DLRunknownCLN148 [2018-06-22 11:39:23,117 INFO ]: Found implementation of procedure f3_1038DLRunknownCLN148 [2018-06-22 11:39:23,117 INFO ]: Specification and implementation of procedure main_1047DLRunknownCLN230 given in one single declaration [2018-06-22 11:39:23,117 INFO ]: Found specification of procedure main_1047DLRunknownCLN230 [2018-06-22 11:39:23,117 INFO ]: Found implementation of procedure main_1047DLRunknownCLN230 [2018-06-22 11:39:23,117 INFO ]: Specification and implementation of procedure f3_1038DLRunknownCLN162 given in one single declaration [2018-06-22 11:39:23,117 INFO ]: Found specification of procedure f3_1038DLRunknownCLN162 [2018-06-22 11:39:23,117 INFO ]: Found implementation of procedure f3_1038DLRunknownCLN162 [2018-06-22 11:39:23,117 INFO ]: Specification and implementation of procedure f5_1044DLRunknownCLN209 given in one single declaration [2018-06-22 11:39:23,117 INFO ]: Found specification of procedure f5_1044DLRunknownCLN209 [2018-06-22 11:39:23,117 INFO ]: Found implementation of procedure f5_1044DLRunknownCLN209 [2018-06-22 11:39:23,117 INFO ]: Specification and implementation of procedure f5_1044DLRunknownCLN202 given in one single declaration [2018-06-22 11:39:23,117 INFO ]: Found specification of procedure f5_1044DLRunknownCLN202 [2018-06-22 11:39:23,117 INFO ]: Found implementation of procedure f5_1044DLRunknownCLN202 [2018-06-22 11:39:23,117 INFO ]: Specification and implementation of procedure f3_1038DLRunknownCLN155 given in one single declaration [2018-06-22 11:39:23,117 INFO ]: Found specification of procedure f3_1038DLRunknownCLN155 [2018-06-22 11:39:23,117 INFO ]: Found implementation of procedure f3_1038DLRunknownCLN155 [2018-06-22 11:39:23,117 INFO ]: Specification and implementation of procedure f2_1034DLRunknownCLN41 given in one single declaration [2018-06-22 11:39:23,117 INFO ]: Found specification of procedure f2_1034DLRunknownCLN41 [2018-06-22 11:39:23,117 INFO ]: Found implementation of procedure f2_1034DLRunknownCLN41 [2018-06-22 11:39:23,117 INFO ]: Specification and implementation of procedure f2_without_checking_1447DLRunknownCLN98 given in one single declaration [2018-06-22 11:39:23,117 INFO ]: Found specification of procedure f2_without_checking_1447DLRunknownCLN98 [2018-06-22 11:39:23,117 INFO ]: Found implementation of procedure f2_without_checking_1447DLRunknownCLN98 [2018-06-22 11:39:23,117 INFO ]: Specification and implementation of procedure f2_without_checking_1447DLRunknownCLN127 given in one single declaration [2018-06-22 11:39:23,117 INFO ]: Found specification of procedure f2_without_checking_1447DLRunknownCLN127 [2018-06-22 11:39:23,117 INFO ]: Found implementation of procedure f2_without_checking_1447DLRunknownCLN127 [2018-06-22 11:39:23,117 INFO ]: Specification and implementation of procedure botDLRunknownCLN2 given in one single declaration [2018-06-22 11:39:23,117 INFO ]: Found specification of procedure botDLRunknownCLN2 [2018-06-22 11:39:23,117 INFO ]: Found implementation of procedure botDLRunknownCLN2 [2018-06-22 11:39:23,117 INFO ]: Specification and implementation of procedure failDLRunknownCLN226 given in one single declaration [2018-06-22 11:39:23,118 INFO ]: Found specification of procedure failDLRunknownCLN226 [2018-06-22 11:39:23,118 INFO ]: Found implementation of procedure failDLRunknownCLN226 [2018-06-22 11:39:23,118 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:39:23,118 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:39:23,118 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 11:39:24,622 INFO ]: Using library mode [2018-06-22 11:39:24,623 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:39:24 BoogieIcfgContainer [2018-06-22 11:39:24,623 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:39:24,624 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:39:24,624 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:39:24,627 INFO ]: TraceAbstraction initialized [2018-06-22 11:39:24,627 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:39:22" (1/3) ... [2018-06-22 11:39:24,629 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20158d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:39:24, skipping insertion in model container [2018-06-22 11:39:24,629 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:39:23" (2/3) ... [2018-06-22 11:39:24,629 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20158d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:39:24, skipping insertion in model container [2018-06-22 11:39:24,629 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:39:24" (3/3) ... [2018-06-22 11:39:24,631 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:39:24,640 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:39:24,651 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:39:24,701 INFO ]: Using default assertion order modulation [2018-06-22 11:39:24,702 INFO ]: Interprodecural is true [2018-06-22 11:39:24,702 INFO ]: Hoare is false [2018-06-22 11:39:24,702 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:39:24,702 INFO ]: Backedges is TWOTRACK [2018-06-22 11:39:24,702 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:39:24,702 INFO ]: Difference is false [2018-06-22 11:39:24,702 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:39:24,702 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:39:24,720 INFO ]: Start isEmpty. Operand 73 states. [2018-06-22 11:39:24,746 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:39:24,746 INFO ]: Found error trace [2018-06-22 11:39:24,747 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:39:24,747 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:39:24,750 INFO ]: Analyzing trace with hash 1079341640, now seen corresponding path program 1 times [2018-06-22 11:39:24,752 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:39:24,752 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:39:24,783 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:39:24,783 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:39:24,783 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:39:24,796 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:39:24,816 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:39:24,817 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:39:24,817 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:39:24,818 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:39:24,828 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:39:24,829 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:39:24,831 INFO ]: Start difference. First operand 73 states. Second operand 2 states. [2018-06-22 11:39:24,863 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:39:24,863 INFO ]: Finished difference Result 62 states and 70 transitions. [2018-06-22 11:39:24,863 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:39:24,865 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:39:24,865 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:39:24,877 INFO ]: With dead ends: 62 [2018-06-22 11:39:24,877 INFO ]: Without dead ends: 57 [2018-06-22 11:39:24,879 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 11:39:24,895 INFO ]: Start minimizeSevpa. Operand 57 states. [2018-06-22 11:39:24,921 INFO ]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-06-22 11:39:24,922 INFO ]: Start removeUnreachable. Operand 57 states. [2018-06-22 11:39:24,924 INFO ]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2018-06-22 11:39:24,925 INFO ]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 5 [2018-06-22 11:39:24,925 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:39:24,925 INFO ]: Abstraction has 57 states and 64 transitions. [2018-06-22 11:39:24,925 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:39:24,925 INFO ]: Start isEmpty. Operand 57 states and 64 transitions. [2018-06-22 11:39:24,928 INFO ]: Finished isEmpty. Found accepting run of length 66 [2018-06-22 11:39:24,928 INFO ]: Found error trace [2018-06-22 11:39:24,929 INFO ]: trace histogram [5, 5, 3, 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, 1, 1, 1] [2018-06-22 11:39:24,929 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:39:24,929 INFO ]: Analyzing trace with hash 968607801, now seen corresponding path program 1 times [2018-06-22 11:39:24,929 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:39:24,929 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:39:24,930 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:39:24,930 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:39:24,930 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:39:24,956 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:39:24,956 INFO ]: Advancing trace checker [2018-06-22 11:39:24,956 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 11:39:24,970 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:39:25,127 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:39:25,143 INFO ]: Computing forward predicates... [2018-06-22 11:39:25,428 INFO ]: Checked inductivity of 46 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-06-22 11:39:25,449 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:39:25,449 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-06-22 11:39:25,451 INFO ]: Interpolant automaton has 8 states [2018-06-22 11:39:25,451 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 11:39:25,451 INFO ]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:39:25,451 INFO ]: Start difference. First operand 57 states and 64 transitions. Second operand 8 states. [2018-06-22 11:39:25,620 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:39:25,620 INFO ]: Finished difference Result 51 states and 58 transitions. [2018-06-22 11:39:25,621 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 11:39:25,621 INFO ]: Start accepts. Automaton has 8 states. Word has length 65 [2018-06-22 11:39:25,621 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:39:25,621 INFO ]: With dead ends: 51 [2018-06-22 11:39:25,621 INFO ]: Without dead ends: 0 [2018-06-22 11:39:25,622 INFO ]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:39:25,622 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:39:25,622 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:39:25,622 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:39:25,622 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:39:25,622 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2018-06-22 11:39:25,622 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:39:25,622 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:39:25,622 INFO ]: Interpolant automaton has 8 states. [2018-06-22 11:39:25,622 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:39:25,622 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:39:25,627 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:39:25 BoogieIcfgContainer [2018-06-22 11:39:25,627 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:39:25,628 INFO ]: Toolchain (without parser) took 2684.88 ms. Allocated memory was 317.7 MB in the beginning and 324.0 MB in the end (delta: 6.3 MB). Free memory was 203.8 MB in the beginning and 186.8 MB in the end (delta: 17.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 3.6 GB. [2018-06-22 11:39:25,629 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 317.7 MB. Free memory is still 283.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:39:25,629 INFO ]: ChcToBoogie took 65.44 ms. Allocated memory is still 317.7 MB. Free memory was 203.8 MB in the beginning and 200.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:39:25,629 INFO ]: Boogie Preprocessor took 86.30 ms. Allocated memory was 317.7 MB in the beginning and 324.0 MB in the end (delta: 6.3 MB). Free memory was 200.8 MB in the beginning and 295.2 MB in the end (delta: -94.4 MB). Peak memory consumption was 8.2 MB. Max. memory is 3.6 GB. [2018-06-22 11:39:25,630 INFO ]: RCFGBuilder took 1522.34 ms. Allocated memory is still 324.0 MB. Free memory was 295.2 MB in the beginning and 246.9 MB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 3.6 GB. [2018-06-22 11:39:25,630 INFO ]: TraceAbstraction took 1002.69 ms. Allocated memory is still 324.0 MB. Free memory was 246.9 MB in the beginning and 186.8 MB in the end (delta: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:39:25,632 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 317.7 MB. Free memory is still 283.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 65.44 ms. Allocated memory is still 317.7 MB. Free memory was 203.8 MB in the beginning and 200.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 86.30 ms. Allocated memory was 317.7 MB in the beginning and 324.0 MB in the end (delta: 6.3 MB). Free memory was 200.8 MB in the beginning and 295.2 MB in the end (delta: -94.4 MB). Peak memory consumption was 8.2 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1522.34 ms. Allocated memory is still 324.0 MB. Free memory was 295.2 MB in the beginning and 246.9 MB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1002.69 ms. Allocated memory is still 324.0 MB. Free memory was 246.9 MB in the beginning and 186.8 MB in the end (delta: 60.1 MB). Peak memory consumption was 60.1 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 15 procedures, 73 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 2 OverallIterations, 5 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 121 SDtfs, 1 SDslu, 283 SDs, 0 SdLazy, 57 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 6352 SizeOfPredicates, 1 NumberOfNonLiveVariables, 598 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 38/46 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/CE-Jones_Bohr01.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-39-25-647.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/CE-Jones_Bohr01.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-39-25-647.csv Received shutdown request...