java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/hopv/lia/termination/Ackermann05.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:25:30,296 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:25:30,299 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:25:30,314 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:25:30,314 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:25:30,315 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:25:30,318 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:25:30,320 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:25:30,322 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:25:30,323 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:25:30,325 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:25:30,325 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:25:30,326 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:25:30,327 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:25:30,327 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:25:30,331 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:25:30,333 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:25:30,346 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:25:30,348 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:25:30,349 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:25:30,350 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:25:30,352 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:25:30,352 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:25:30,352 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:25:30,353 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:25:30,354 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:25:30,359 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:25:30,360 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:25:30,361 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:25:30,361 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:25:30,362 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:25:30,362 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:25:30,363 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:25:30,363 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:25:30,367 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:25:30,368 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:25:30,387 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:25:30,387 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:25:30,390 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:25:30,390 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:25:30,391 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:25:30,391 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:25:30,391 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:25:30,391 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:25:30,392 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:25:30,392 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:25:30,392 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:25:30,392 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:25:30,393 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:25:30,395 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:25:30,396 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:25:30,396 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:25:30,396 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:25:30,396 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:25:30,396 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:25:30,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:25:30,397 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:25:30,398 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:25:30,399 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:25:30,449 INFO ]: Repository-Root is: /tmp [2018-06-24 21:25:30,465 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:25:30,471 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:25:30,473 INFO ]: Initializing SmtParser... [2018-06-24 21:25:30,473 INFO ]: SmtParser initialized [2018-06-24 21:25:30,474 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/Ackermann05.smt2 [2018-06-24 21:25:30,475 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 [2018-06-24 21:25:30,564 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/Ackermann05.smt2 unknown [2018-06-24 21:25:31,321 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/Ackermann05.smt2 [2018-06-24 21:25:31,325 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:25:31,332 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:25:31,333 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:25:31,333 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:25:31,333 INFO ]: ChcToBoogie initialized [2018-06-24 21:25:31,336 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:25:31" (1/1) ... [2018-06-24 21:25:31,417 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:25:31 Unit [2018-06-24 21:25:31,417 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:25:31,418 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:25:31,418 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:25:31,418 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:25:31,433 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:25:31" (1/1) ... [2018-06-24 21:25:31,433 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:25:31" (1/1) ... [2018-06-24 21:25:31,443 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:25:31" (1/1) ... [2018-06-24 21:25:31,443 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:25:31" (1/1) ... [2018-06-24 21:25:31,461 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:25:31" (1/1) ... [2018-06-24 21:25:31,469 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:25:31" (1/1) ... [2018-06-24 21:25:31,472 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:25:31" (1/1) ... [2018-06-24 21:25:31,477 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:25:31,478 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:25:31,478 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:25:31,478 INFO ]: RCFGBuilder initialized [2018-06-24 21:25:31,479 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:25:31" (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) [2018-06-24 21:25:31,492 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:25:31,492 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:25:31,492 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:25:31,492 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:25:31,492 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:25:31,492 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 [2018-06-24 21:25:32,586 INFO ]: Using library mode [2018-06-24 21:25:32,587 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:25:32 BoogieIcfgContainer [2018-06-24 21:25:32,587 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:25:32,587 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:25:32,587 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:25:32,588 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:25:32,589 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:25:32" (1/1) ... [2018-06-24 21:25:32,623 INFO ]: Initial Icfg 51 locations, 83 edges [2018-06-24 21:25:32,625 INFO ]: Using Remove infeasible edges [2018-06-24 21:25:32,625 INFO ]: Using Maximize final states [2018-06-24 21:25:32,626 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:25:32,626 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:25:32,628 INFO ]: Using Remove sink states [2018-06-24 21:25:32,629 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:25:32,629 INFO ]: Using Use SBE [2018-06-24 21:25:32,634 WARN ]: expecting exponential blowup for input size 9 [2018-06-24 21:25:34,227 WARN ]: expecting exponential blowup for input size 9 [2018-06-24 21:25:35,226 WARN ]: expecting exponential blowup for input size 9 [2018-06-24 21:25:37,081 WARN ]: expecting exponential blowup for input size 9 [2018-06-24 21:25:38,701 WARN ]: expecting exponential blowup for input size 9 [2018-06-24 21:25:40,569 INFO ]: SBE split 5 edges [2018-06-24 21:25:40,576 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-24 21:25:40,578 INFO ]: 0 new accepting states [2018-06-24 21:25:42,661 INFO ]: Removed 179 edges and 15 locations by large block encoding [2018-06-24 21:25:42,663 INFO ]: Removed 4 edges and 3 locations by removing sink states [2018-06-24 21:25:42,664 INFO ]: Removed 46 edges and 0 locations because of local infeasibility [2018-06-24 21:25:42,665 INFO ]: 0 new accepting states [2018-06-24 21:25:42,665 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:25:42,666 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:25:42,666 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:25:42,666 INFO ]: 0 new accepting states [2018-06-24 21:25:42,667 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:25:42,667 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:25:42,668 INFO ]: Encoded RCFG 31 locations, 115 edges [2018-06-24 21:25:42,668 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:25:42 BasicIcfg [2018-06-24 21:25:42,668 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:25:42,670 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:25:42,670 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:25:42,673 INFO ]: TraceAbstraction initialized [2018-06-24 21:25:42,673 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:25:31" (1/4) ... [2018-06-24 21:25:42,674 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c02454d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:25:42, skipping insertion in model container [2018-06-24 21:25:42,674 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:25:31" (2/4) ... [2018-06-24 21:25:42,675 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c02454d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:25:42, skipping insertion in model container [2018-06-24 21:25:42,675 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:25:32" (3/4) ... [2018-06-24 21:25:42,675 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c02454d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:25:42, skipping insertion in model container [2018-06-24 21:25:42,675 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:25:42" (4/4) ... [2018-06-24 21:25:42,679 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:25:42,689 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:25:42,699 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:25:42,756 INFO ]: Using default assertion order modulation [2018-06-24 21:25:42,756 INFO ]: Interprodecural is true [2018-06-24 21:25:42,756 INFO ]: Hoare is false [2018-06-24 21:25:42,756 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:25:42,756 INFO ]: Backedges is TWOTRACK [2018-06-24 21:25:42,756 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:25:42,756 INFO ]: Difference is false [2018-06-24 21:25:42,756 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:25:42,756 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:25:42,772 INFO ]: Start isEmpty. Operand 31 states. [2018-06-24 21:25:42,800 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:25:42,800 INFO ]: Found error trace [2018-06-24 21:25:42,801 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:25:42,801 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:25:42,806 INFO ]: Analyzing trace with hash 72899192, now seen corresponding path program 1 times [2018-06-24 21:25:42,808 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:25:42,808 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:25:42,852 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:42,852 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:25:42,853 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:42,911 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:25:43,074 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:25:43,077 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:25:43,077 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:25:43,079 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:25:43,094 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:25:43,094 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:25:43,097 INFO ]: Start difference. First operand 31 states. Second operand 3 states. [2018-06-24 21:25:43,977 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:25:43,977 INFO ]: Finished difference Result 42 states and 188 transitions. [2018-06-24 21:25:43,978 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:25:43,979 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:25:43,979 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:25:43,990 INFO ]: With dead ends: 42 [2018-06-24 21:25:43,990 INFO ]: Without dead ends: 34 [2018-06-24 21:25:43,992 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:25:44,011 INFO ]: Start minimizeSevpa. Operand 34 states. [2018-06-24 21:25:44,039 INFO ]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-06-24 21:25:44,041 INFO ]: Start removeUnreachable. Operand 34 states. [2018-06-24 21:25:44,043 INFO ]: Finished removeUnreachable. Reduced from 34 states to 34 states and 95 transitions. [2018-06-24 21:25:44,044 INFO ]: Start accepts. Automaton has 34 states and 95 transitions. Word has length 5 [2018-06-24 21:25:44,045 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:25:44,045 INFO ]: Abstraction has 34 states and 95 transitions. [2018-06-24 21:25:44,045 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:25:44,045 INFO ]: Start isEmpty. Operand 34 states and 95 transitions. [2018-06-24 21:25:44,048 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:25:44,048 INFO ]: Found error trace [2018-06-24 21:25:44,048 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:25:44,049 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:25:44,049 INFO ]: Analyzing trace with hash 73167311, now seen corresponding path program 1 times [2018-06-24 21:25:44,049 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:25:44,049 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:25:44,050 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:44,050 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:25:44,050 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:44,070 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:25:44,100 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:25:44,100 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:25:44,100 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:25:44,101 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:25:44,101 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:25:44,102 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:25:44,102 INFO ]: Start difference. First operand 34 states and 95 transitions. Second operand 3 states. [2018-06-24 21:25:44,312 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:25:44,312 INFO ]: Finished difference Result 42 states and 125 transitions. [2018-06-24 21:25:44,313 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:25:44,313 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:25:44,313 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:25:44,316 INFO ]: With dead ends: 42 [2018-06-24 21:25:44,316 INFO ]: Without dead ends: 42 [2018-06-24 21:25:44,318 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:25:44,318 INFO ]: Start minimizeSevpa. Operand 42 states. [2018-06-24 21:25:44,326 INFO ]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-06-24 21:25:44,326 INFO ]: Start removeUnreachable. Operand 42 states. [2018-06-24 21:25:44,328 INFO ]: Finished removeUnreachable. Reduced from 42 states to 42 states and 125 transitions. [2018-06-24 21:25:44,328 INFO ]: Start accepts. Automaton has 42 states and 125 transitions. Word has length 5 [2018-06-24 21:25:44,328 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:25:44,328 INFO ]: Abstraction has 42 states and 125 transitions. [2018-06-24 21:25:44,328 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:25:44,328 INFO ]: Start isEmpty. Operand 42 states and 125 transitions. [2018-06-24 21:25:44,333 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-24 21:25:44,333 INFO ]: Found error trace [2018-06-24 21:25:44,333 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:25:44,333 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:25:44,333 INFO ]: Analyzing trace with hash 712279798, now seen corresponding path program 1 times [2018-06-24 21:25:44,333 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:25:44,333 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:25:44,334 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:44,334 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:25:44,334 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:44,344 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:25:44,422 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 21:25:44,422 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:25:44,423 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:25:44,423 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:25:44,423 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:25:44,423 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:25:44,423 INFO ]: Start difference. First operand 42 states and 125 transitions. Second operand 3 states. [2018-06-24 21:25:44,642 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:25:44,642 INFO ]: Finished difference Result 49 states and 137 transitions. [2018-06-24 21:25:44,642 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:25:44,642 INFO ]: Start accepts. Automaton has 3 states. Word has length 10 [2018-06-24 21:25:44,643 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:25:44,645 INFO ]: With dead ends: 49 [2018-06-24 21:25:44,645 INFO ]: Without dead ends: 42 [2018-06-24 21:25:44,646 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:25:44,646 INFO ]: Start minimizeSevpa. Operand 42 states. [2018-06-24 21:25:44,653 INFO ]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-06-24 21:25:44,653 INFO ]: Start removeUnreachable. Operand 42 states. [2018-06-24 21:25:44,655 INFO ]: Finished removeUnreachable. Reduced from 42 states to 42 states and 124 transitions. [2018-06-24 21:25:44,655 INFO ]: Start accepts. Automaton has 42 states and 124 transitions. Word has length 10 [2018-06-24 21:25:44,655 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:25:44,655 INFO ]: Abstraction has 42 states and 124 transitions. [2018-06-24 21:25:44,655 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:25:44,655 INFO ]: Start isEmpty. Operand 42 states and 124 transitions. [2018-06-24 21:25:44,658 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-24 21:25:44,658 INFO ]: Found error trace [2018-06-24 21:25:44,658 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:25:44,658 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:25:44,658 INFO ]: Analyzing trace with hash 1428545310, now seen corresponding path program 1 times [2018-06-24 21:25:44,658 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:25:44,658 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:25:44,659 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:44,659 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:25:44,659 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:44,690 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:25:44,781 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 21:25:44,781 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:25:44,781 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-24 21:25:44,781 INFO ]: Interpolant automaton has 5 states [2018-06-24 21:25:44,781 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 21:25:44,781 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-24 21:25:44,782 INFO ]: Start difference. First operand 42 states and 124 transitions. Second operand 5 states. [2018-06-24 21:25:45,325 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:25:45,325 INFO ]: Finished difference Result 99 states and 297 transitions. [2018-06-24 21:25:45,326 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-24 21:25:45,326 INFO ]: Start accepts. Automaton has 5 states. Word has length 10 [2018-06-24 21:25:45,326 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:25:45,334 INFO ]: With dead ends: 99 [2018-06-24 21:25:45,334 INFO ]: Without dead ends: 61 [2018-06-24 21:25:45,334 INFO ]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-06-24 21:25:45,334 INFO ]: Start minimizeSevpa. Operand 61 states. [2018-06-24 21:25:45,350 INFO ]: Finished minimizeSevpa. Reduced states from 61 to 48. [2018-06-24 21:25:45,350 INFO ]: Start removeUnreachable. Operand 48 states. [2018-06-24 21:25:45,352 INFO ]: Finished removeUnreachable. Reduced from 48 states to 48 states and 134 transitions. [2018-06-24 21:25:45,352 INFO ]: Start accepts. Automaton has 48 states and 134 transitions. Word has length 10 [2018-06-24 21:25:45,352 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:25:45,352 INFO ]: Abstraction has 48 states and 134 transitions. [2018-06-24 21:25:45,352 INFO ]: Interpolant automaton has 5 states. [2018-06-24 21:25:45,352 INFO ]: Start isEmpty. Operand 48 states and 134 transitions. [2018-06-24 21:25:45,354 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-24 21:25:45,354 INFO ]: Found error trace [2018-06-24 21:25:45,354 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:25:45,355 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:25:45,355 INFO ]: Analyzing trace with hash 1179417718, now seen corresponding path program 1 times [2018-06-24 21:25:45,355 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:25:45,355 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:25:45,356 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:45,356 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:25:45,356 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:45,387 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:25:45,482 INFO ]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-24 21:25:45,482 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:25:45,482 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-24 21:25:45,482 INFO ]: Interpolant automaton has 4 states [2018-06-24 21:25:45,483 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 21:25:45,483 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-24 21:25:45,483 INFO ]: Start difference. First operand 48 states and 134 transitions. Second operand 4 states. [2018-06-24 21:25:45,794 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:25:45,794 INFO ]: Finished difference Result 63 states and 203 transitions. [2018-06-24 21:25:45,794 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-24 21:25:45,794 INFO ]: Start accepts. Automaton has 4 states. Word has length 11 [2018-06-24 21:25:45,794 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:25:45,798 INFO ]: With dead ends: 63 [2018-06-24 21:25:45,798 INFO ]: Without dead ends: 63 [2018-06-24 21:25:45,798 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-24 21:25:45,798 INFO ]: Start minimizeSevpa. Operand 63 states. [2018-06-24 21:25:45,813 INFO ]: Finished minimizeSevpa. Reduced states from 63 to 47. [2018-06-24 21:25:45,813 INFO ]: Start removeUnreachable. Operand 47 states. [2018-06-24 21:25:45,814 INFO ]: Finished removeUnreachable. Reduced from 47 states to 47 states and 130 transitions. [2018-06-24 21:25:45,814 INFO ]: Start accepts. Automaton has 47 states and 130 transitions. Word has length 11 [2018-06-24 21:25:45,815 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:25:45,815 INFO ]: Abstraction has 47 states and 130 transitions. [2018-06-24 21:25:45,815 INFO ]: Interpolant automaton has 4 states. [2018-06-24 21:25:45,815 INFO ]: Start isEmpty. Operand 47 states and 130 transitions. [2018-06-24 21:25:45,817 INFO ]: Finished isEmpty. Found accepting run of length 16 [2018-06-24 21:25:45,817 INFO ]: Found error trace [2018-06-24 21:25:45,817 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:25:45,817 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:25:45,817 INFO ]: Analyzing trace with hash -987401545, now seen corresponding path program 1 times [2018-06-24 21:25:45,817 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:25:45,817 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:25:45,818 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:45,818 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:25:45,818 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:45,840 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:25:45,931 INFO ]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-24 21:25:45,931 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 21:25:45,931 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 21:25:45,939 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:25:46,001 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:25:46,008 INFO ]: Computing forward predicates... [2018-06-24 21:25:47,101 INFO ]: Checked inductivity of 9 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-24 21:25:47,139 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 21:25:47,139 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-06-24 21:25:47,139 INFO ]: Interpolant automaton has 12 states [2018-06-24 21:25:47,140 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-24 21:25:47,140 INFO ]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-06-24 21:25:47,140 INFO ]: Start difference. First operand 47 states and 130 transitions. Second operand 12 states. [2018-06-24 21:25:50,074 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:25:50,074 INFO ]: Finished difference Result 185 states and 836 transitions. [2018-06-24 21:25:50,075 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-06-24 21:25:50,075 INFO ]: Start accepts. Automaton has 12 states. Word has length 15 [2018-06-24 21:25:50,075 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:25:50,092 INFO ]: With dead ends: 185 [2018-06-24 21:25:50,092 INFO ]: Without dead ends: 185 [2018-06-24 21:25:50,092 INFO ]: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=186, Invalid=1004, Unknown=0, NotChecked=0, Total=1190 [2018-06-24 21:25:50,092 INFO ]: Start minimizeSevpa. Operand 185 states. [2018-06-24 21:25:50,181 INFO ]: Finished minimizeSevpa. Reduced states from 185 to 81. [2018-06-24 21:25:50,181 INFO ]: Start removeUnreachable. Operand 81 states. [2018-06-24 21:25:50,187 INFO ]: Finished removeUnreachable. Reduced from 81 states to 81 states and 239 transitions. [2018-06-24 21:25:50,187 INFO ]: Start accepts. Automaton has 81 states and 239 transitions. Word has length 15 [2018-06-24 21:25:50,187 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:25:50,187 INFO ]: Abstraction has 81 states and 239 transitions. [2018-06-24 21:25:50,187 INFO ]: Interpolant automaton has 12 states. [2018-06-24 21:25:50,187 INFO ]: Start isEmpty. Operand 81 states and 239 transitions. [2018-06-24 21:25:50,192 INFO ]: Finished isEmpty. Found accepting run of length 29 [2018-06-24 21:25:50,192 INFO ]: Found error trace [2018-06-24 21:25:50,193 INFO ]: trace histogram [5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:25:50,194 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:25:50,194 INFO ]: Analyzing trace with hash 1688917410, now seen corresponding path program 1 times [2018-06-24 21:25:50,194 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:25:50,194 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:25:50,195 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:50,195 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:25:50,195 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:25:50,241 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:25:50,321 INFO ]: Checked inductivity of 50 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-06-24 21:25:50,321 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:25:50,321 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:25:50,322 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:25:50,322 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:25:50,322 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:25:50,322 INFO ]: Start difference. First operand 81 states and 239 transitions. Second operand 3 states. [2018-06-24 21:25:50,666 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:25:50,667 INFO ]: Finished difference Result 50 states and 143 transitions. [2018-06-24 21:25:50,667 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:25:50,667 INFO ]: Start accepts. Automaton has 3 states. Word has length 28 [2018-06-24 21:25:50,667 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:25:50,667 INFO ]: With dead ends: 50 [2018-06-24 21:25:50,667 INFO ]: Without dead ends: 0 [2018-06-24 21:25:50,667 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:25:50,667 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 21:25:50,667 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 21:25:50,667 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 21:25:50,668 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 21:25:50,668 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-06-24 21:25:50,668 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:25:50,668 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 21:25:50,668 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:25:50,668 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 21:25:50,668 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 21:25:50,670 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:25:50,671 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:25:50 BasicIcfg [2018-06-24 21:25:50,672 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:25:50,672 INFO ]: Toolchain (without parser) took 19346.56 ms. Allocated memory was 308.3 MB in the beginning and 468.7 MB in the end (delta: 160.4 MB). Free memory was 236.7 MB in the beginning and 363.7 MB in the end (delta: -127.0 MB). Peak memory consumption was 33.4 MB. Max. memory is 3.6 GB. [2018-06-24 21:25:50,674 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:25:50,674 INFO ]: ChcToBoogie took 84.85 ms. Allocated memory is still 308.3 MB. Free memory was 236.7 MB in the beginning and 232.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:25:50,674 INFO ]: Boogie Preprocessor took 59.68 ms. Allocated memory is still 308.3 MB. Free memory was 232.8 MB in the beginning and 230.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:25:50,675 INFO ]: RCFGBuilder took 1109.21 ms. Allocated memory was 308.3 MB in the beginning and 324.0 MB in the end (delta: 15.7 MB). Free memory was 230.8 MB in the beginning and 290.0 MB in the end (delta: -59.3 MB). Peak memory consumption was 49.4 MB. Max. memory is 3.6 GB. [2018-06-24 21:25:50,675 INFO ]: BlockEncodingV2 took 10080.96 ms. Allocated memory was 324.0 MB in the beginning and 370.7 MB in the end (delta: 46.7 MB). Free memory was 290.0 MB in the beginning and 185.3 MB in the end (delta: 104.7 MB). Peak memory consumption was 156.2 MB. Max. memory is 3.6 GB. [2018-06-24 21:25:50,675 INFO ]: TraceAbstraction took 8001.79 ms. Allocated memory was 370.7 MB in the beginning and 468.7 MB in the end (delta: 98.0 MB). Free memory was 185.3 MB in the beginning and 363.7 MB in the end (delta: -178.4 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:25:50,678 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 51 locations, 83 edges - StatisticsResult: Encoded RCFG 31 locations, 115 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 84.85 ms. Allocated memory is still 308.3 MB. Free memory was 236.7 MB in the beginning and 232.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 59.68 ms. Allocated memory is still 308.3 MB. Free memory was 232.8 MB in the beginning and 230.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1109.21 ms. Allocated memory was 308.3 MB in the beginning and 324.0 MB in the end (delta: 15.7 MB). Free memory was 230.8 MB in the beginning and 290.0 MB in the end (delta: -59.3 MB). Peak memory consumption was 49.4 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 10080.96 ms. Allocated memory was 324.0 MB in the beginning and 370.7 MB in the end (delta: 46.7 MB). Free memory was 290.0 MB in the beginning and 185.3 MB in the end (delta: 104.7 MB). Peak memory consumption was 156.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 8001.79 ms. Allocated memory was 370.7 MB in the beginning and 468.7 MB in the end (delta: 98.0 MB). Free memory was 185.3 MB in the beginning and 363.7 MB in the end (delta: -178.4 MB). There was no memory consumed. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. SAFE Result, 7.9s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 5.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 667 SDtfs, 328 SDslu, 1200 SDs, 0 SdLazy, 2493 SolverSat, 914 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 133 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2430 SizeOfPredicates, 6 NumberOfNonLiveVariables, 426 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 76/79 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/Ackermann05.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-25-50-688.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Ackermann05.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-25-50-688.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Ackermann05.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-25-50-688.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Ackermann05.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-25-50-688.csv Received shutdown request...