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/up_down04.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:41:36,210 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:41:36,211 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:41:36,223 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:41:36,223 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:41:36,224 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:41:36,225 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:41:36,227 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:41:36,229 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:41:36,231 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:41:36,232 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:41:36,232 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:41:36,233 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:41:36,234 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:41:36,235 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:41:36,236 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:41:36,240 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:41:36,242 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:41:36,247 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:41:36,248 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:41:36,249 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:41:36,254 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:41:36,255 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:41:36,255 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:41:36,256 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:41:36,257 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:41:36,257 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:41:36,258 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:41:36,259 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:41:36,259 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:41:36,260 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:41:36,260 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:41:36,260 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:41:36,261 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:41:36,262 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:41:36,262 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 11:41:36,275 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:41:36,275 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:41:36,276 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:41:36,276 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:41:36,277 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:41:36,277 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:41:36,277 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:41:36,278 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:41:36,278 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:41:36,278 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:41:36,278 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:41:36,278 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:41:36,278 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:41:36,279 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:41:36,279 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:41:36,279 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:41:36,279 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:41:36,279 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:41:36,280 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:41:36,284 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:41:36,284 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:41:36,330 INFO ]: Repository-Root is: /tmp [2018-06-22 11:41:36,343 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:41:36,347 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:41:36,348 INFO ]: Initializing SmtParser... [2018-06-22 11:41:36,349 INFO ]: SmtParser initialized [2018-06-22 11:41:36,349 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/up_down04.smt2 [2018-06-22 11:41:36,351 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 11:41:36,440 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/up_down04.smt2 unknown [2018-06-22 11:41:36,845 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/up_down04.smt2 [2018-06-22 11:41:36,850 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:41:36,857 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:41:36,857 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:41:36,857 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:41:36,857 INFO ]: ChcToBoogie initialized [2018-06-22 11:41:36,861 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:41:36" (1/1) ... [2018-06-22 11:41:36,910 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:36 Unit [2018-06-22 11:41:36,910 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:41:36,910 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:41:36,910 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:41:36,911 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:41:36,934 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:36" (1/1) ... [2018-06-22 11:41:36,934 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:36" (1/1) ... [2018-06-22 11:41:36,942 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:36" (1/1) ... [2018-06-22 11:41:36,942 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:36" (1/1) ... [2018-06-22 11:41:36,946 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:36" (1/1) ... [2018-06-22 11:41:36,952 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:36" (1/1) ... [2018-06-22 11:41:36,955 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:36" (1/1) ... [2018-06-22 11:41:36,957 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:41:36,967 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:41:36,967 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:41:36,967 INFO ]: RCFGBuilder initialized [2018-06-22 11:41:36,968 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:36" (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 11:41:36,983 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:41:36,984 INFO ]: Found specification of procedure False [2018-06-22 11:41:36,984 INFO ]: Found implementation of procedure False [2018-06-22 11:41:36,984 INFO ]: Specification and implementation of procedure failDLRunknownCLN24 given in one single declaration [2018-06-22 11:41:36,984 INFO ]: Found specification of procedure failDLRunknownCLN24 [2018-06-22 11:41:36,984 INFO ]: Found implementation of procedure failDLRunknownCLN24 [2018-06-22 11:41:36,984 INFO ]: Specification and implementation of procedure down_1031DLRunknownCLN18 given in one single declaration [2018-06-22 11:41:36,984 INFO ]: Found specification of procedure down_1031DLRunknownCLN18 [2018-06-22 11:41:36,984 INFO ]: Found implementation of procedure down_1031DLRunknownCLN18 [2018-06-22 11:41:36,984 INFO ]: Specification and implementation of procedure app_1030DLRunknownCLN8 given in one single declaration [2018-06-22 11:41:36,984 INFO ]: Found specification of procedure app_1030DLRunknownCLN8 [2018-06-22 11:41:36,984 INFO ]: Found implementation of procedure app_1030DLRunknownCLN8 [2018-06-22 11:41:36,984 INFO ]: Specification and implementation of procedure app_1030DLRunknownCLN12 given in one single declaration [2018-06-22 11:41:36,984 INFO ]: Found specification of procedure app_1030DLRunknownCLN12 [2018-06-22 11:41:36,984 INFO ]: Found implementation of procedure app_1030DLRunknownCLN12 [2018-06-22 11:41:36,984 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:41:36,984 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:41:36,984 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 11:41:37,439 INFO ]: Using library mode [2018-06-22 11:41:37,439 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:41:37 BoogieIcfgContainer [2018-06-22 11:41:37,440 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:41:37,441 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:41:37,441 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:41:37,444 INFO ]: TraceAbstraction initialized [2018-06-22 11:41:37,444 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:41:36" (1/3) ... [2018-06-22 11:41:37,445 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d51a311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:41:37, skipping insertion in model container [2018-06-22 11:41:37,445 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:41:36" (2/3) ... [2018-06-22 11:41:37,445 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d51a311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:41:37, skipping insertion in model container [2018-06-22 11:41:37,445 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:41:37" (3/3) ... [2018-06-22 11:41:37,447 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:41:37,456 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:41:37,463 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:41:37,514 INFO ]: Using default assertion order modulation [2018-06-22 11:41:37,515 INFO ]: Interprodecural is true [2018-06-22 11:41:37,515 INFO ]: Hoare is false [2018-06-22 11:41:37,515 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:41:37,515 INFO ]: Backedges is TWOTRACK [2018-06-22 11:41:37,515 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:41:37,515 INFO ]: Difference is false [2018-06-22 11:41:37,515 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:41:37,515 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:41:37,533 INFO ]: Start isEmpty. Operand 24 states. [2018-06-22 11:41:37,554 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:41:37,554 INFO ]: Found error trace [2018-06-22 11:41:37,555 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:41:37,556 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:37,560 INFO ]: Analyzing trace with hash 195143330, now seen corresponding path program 1 times [2018-06-22 11:41:37,562 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:37,563 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:37,600 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:37,600 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:37,600 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:37,617 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:37,643 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:41:37,646 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:41:37,646 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:41:37,648 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:41:37,658 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:41:37,658 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:41:37,660 INFO ]: Start difference. First operand 24 states. Second operand 2 states. [2018-06-22 11:41:37,680 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:37,681 INFO ]: Finished difference Result 22 states and 22 transitions. [2018-06-22 11:41:37,681 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:41:37,682 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:41:37,682 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:37,703 INFO ]: With dead ends: 22 [2018-06-22 11:41:37,703 INFO ]: Without dead ends: 22 [2018-06-22 11:41:37,705 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 11:41:37,720 INFO ]: Start minimizeSevpa. Operand 22 states. [2018-06-22 11:41:37,739 INFO ]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-06-22 11:41:37,740 INFO ]: Start removeUnreachable. Operand 22 states. [2018-06-22 11:41:37,741 INFO ]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-06-22 11:41:37,742 INFO ]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 5 [2018-06-22 11:41:37,742 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:37,742 INFO ]: Abstraction has 22 states and 22 transitions. [2018-06-22 11:41:37,742 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:41:37,742 INFO ]: Start isEmpty. Operand 22 states and 22 transitions. [2018-06-22 11:41:37,743 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:41:37,743 INFO ]: Found error trace [2018-06-22 11:41:37,743 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 11:41:37,743 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:37,743 INFO ]: Analyzing trace with hash 812286529, now seen corresponding path program 1 times [2018-06-22 11:41:37,743 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:37,743 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:37,745 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:37,745 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:37,745 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:37,775 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:41:37,775 INFO ]: Advancing trace checker [2018-06-22 11:41:37,775 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 11:41:37,786 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:37,845 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:37,854 INFO ]: Computing forward predicates... [2018-06-22 11:41:38,233 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:41:38,268 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:41:38,268 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 11:41:38,270 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:41:38,270 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:41:38,270 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:41:38,270 INFO ]: Start difference. First operand 22 states and 22 transitions. Second operand 6 states. [2018-06-22 11:41:38,357 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:38,357 INFO ]: Finished difference Result 16 states and 16 transitions. [2018-06-22 11:41:38,358 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:41:38,358 INFO ]: Start accepts. Automaton has 6 states. Word has length 21 [2018-06-22 11:41:38,358 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:38,358 INFO ]: With dead ends: 16 [2018-06-22 11:41:38,358 INFO ]: Without dead ends: 0 [2018-06-22 11:41:38,359 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:41:38,359 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:41:38,359 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:41:38,359 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:41:38,359 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:41:38,359 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-06-22 11:41:38,359 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:38,359 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:41:38,359 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:41:38,359 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:41:38,359 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:41:38,363 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:41:38 BoogieIcfgContainer [2018-06-22 11:41:38,363 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:41:38,363 INFO ]: Toolchain (without parser) took 1513.44 ms. Allocated memory is still 307.2 MB. Free memory was 251.8 MB in the beginning and 204.2 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:38,365 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:41:38,365 INFO ]: ChcToBoogie took 52.83 ms. Allocated memory is still 307.2 MB. Free memory was 250.7 MB in the beginning and 248.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:38,365 INFO ]: Boogie Preprocessor took 47.08 ms. Allocated memory is still 307.2 MB. Free memory was 248.7 MB in the beginning and 247.8 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 3.6 GB. [2018-06-22 11:41:38,366 INFO ]: RCFGBuilder took 472.63 ms. Allocated memory is still 307.2 MB. Free memory was 247.8 MB in the beginning and 233.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:38,366 INFO ]: TraceAbstraction took 922.03 ms. Allocated memory is still 307.2 MB. Free memory was 233.7 MB in the beginning and 204.2 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:38,369 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 52.83 ms. Allocated memory is still 307.2 MB. Free memory was 250.7 MB in the beginning and 248.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 47.08 ms. Allocated memory is still 307.2 MB. Free memory was 248.7 MB in the beginning and 247.8 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 3.6 GB. * RCFGBuilder took 472.63 ms. Allocated memory is still 307.2 MB. Free memory was 247.8 MB in the beginning and 233.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 922.03 ms. Allocated memory is still 307.2 MB. Free memory was 233.7 MB in the beginning and 204.2 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 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 6 procedures, 24 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 0 SDslu, 47 SDs, 0 SdLazy, 11 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0.4s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 716 SizeOfPredicates, 0 NumberOfNonLiveVariables, 152 ConjunctsInSsa, 9 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/up_down04.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-41-38-404.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/up_down04.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-41-38-404.csv Received shutdown request...