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/McCarthy9102.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:31:35,282 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:31:35,285 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:31:35,298 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:31:35,299 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:31:35,300 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:31:35,301 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:31:35,304 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:31:35,305 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:31:35,306 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:31:35,307 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:31:35,307 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:31:35,308 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:31:35,309 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:31:35,314 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:31:35,315 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:31:35,315 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:31:35,318 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:31:35,321 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:31:35,322 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:31:35,323 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:31:35,324 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:31:35,327 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:31:35,327 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:31:35,327 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:31:35,328 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:31:35,329 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:31:35,330 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:31:35,330 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:31:35,331 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:31:35,332 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:31:35,332 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:31:35,332 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:31:35,333 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:31:35,333 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:31:35,334 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:31:35,334 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:31:35,347 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:31:35,348 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:31:35,348 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:31:35,348 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:31:35,349 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:31:35,349 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:31:35,350 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:31:35,350 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:31:35,350 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:31:35,350 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:31:35,351 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:31:35,351 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:31:35,351 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:31:35,351 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:31:35,351 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:31:35,352 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:31:35,352 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:31:35,352 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:31:35,352 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:31:35,352 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:31:35,353 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:31:35,354 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:31:35,354 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:31:35,401 INFO ]: Repository-Root is: /tmp [2018-06-26 18:31:35,417 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:31:35,421 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:31:35,422 INFO ]: Initializing SmtParser... [2018-06-26 18:31:35,422 INFO ]: SmtParser initialized [2018-06-26 18:31:35,422 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/McCarthy9102.smt2 [2018-06-26 18:31:35,423 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 [2018-06-26 18:31:35,515 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/McCarthy9102.smt2 unknown [2018-06-26 18:31:35,873 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/McCarthy9102.smt2 [2018-06-26 18:31:35,879 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:31:35,885 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:31:35,885 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:31:35,885 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:31:35,886 INFO ]: ChcToBoogie initialized [2018-06-26 18:31:35,889 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:31:35" (1/1) ... [2018-06-26 18:31:35,963 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:35 Unit [2018-06-26 18:31:35,963 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:31:35,963 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:31:35,963 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:31:35,963 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:31:35,986 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:35" (1/1) ... [2018-06-26 18:31:35,986 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:35" (1/1) ... [2018-06-26 18:31:35,994 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:35" (1/1) ... [2018-06-26 18:31:35,994 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:35" (1/1) ... [2018-06-26 18:31:36,010 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:35" (1/1) ... [2018-06-26 18:31:36,021 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:35" (1/1) ... [2018-06-26 18:31:36,023 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:35" (1/1) ... [2018-06-26 18:31:36,026 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:31:36,026 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:31:36,026 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:31:36,026 INFO ]: RCFGBuilder initialized [2018-06-26 18:31:36,027 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:35" (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) [2018-06-26 18:31:36,053 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:31:36,054 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:31:36,054 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:31:36,054 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:31:36,054 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:31:36,054 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 [2018-06-26 18:31:36,590 INFO ]: Using library mode [2018-06-26 18:31:36,592 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:31:36 BoogieIcfgContainer [2018-06-26 18:31:36,592 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:31:36,593 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:31:36,593 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:31:36,594 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:31:36,594 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:31:36" (1/1) ... [2018-06-26 18:31:36,612 INFO ]: Initial Icfg 45 locations, 71 edges [2018-06-26 18:31:36,613 INFO ]: Using Remove infeasible edges [2018-06-26 18:31:36,614 INFO ]: Using Maximize final states [2018-06-26 18:31:36,614 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:31:36,615 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:31:36,616 INFO ]: Using Remove sink states [2018-06-26 18:31:36,617 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:31:36,617 INFO ]: Using Use SBE [2018-06-26 18:31:36,648 INFO ]: SBE split 3 edges [2018-06-26 18:31:36,654 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-26 18:31:36,656 INFO ]: 0 new accepting states [2018-06-26 18:31:37,001 INFO ]: Removed 43 edges and 12 locations by large block encoding [2018-06-26 18:31:37,003 INFO ]: Removed 1 edges and 1 locations by removing sink states [2018-06-26 18:31:37,005 INFO ]: Removed 4 edges and 0 locations because of local infeasibility [2018-06-26 18:31:37,005 INFO ]: 0 new accepting states [2018-06-26 18:31:37,005 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:31:37,006 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:31:37,006 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:31:37,006 INFO ]: 0 new accepting states [2018-06-26 18:31:37,007 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:31:37,007 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:31:37,007 INFO ]: Encoded RCFG 30 locations, 57 edges [2018-06-26 18:31:37,008 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:31:37 BasicIcfg [2018-06-26 18:31:37,008 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:31:37,009 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:31:37,009 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:31:37,012 INFO ]: TraceAbstraction initialized [2018-06-26 18:31:37,013 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:31:35" (1/4) ... [2018-06-26 18:31:37,013 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6479bdb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:31:37, skipping insertion in model container [2018-06-26 18:31:37,014 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:35" (2/4) ... [2018-06-26 18:31:37,014 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6479bdb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:31:37, skipping insertion in model container [2018-06-26 18:31:37,014 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:31:36" (3/4) ... [2018-06-26 18:31:37,014 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6479bdb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:31:37, skipping insertion in model container [2018-06-26 18:31:37,014 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:31:37" (4/4) ... [2018-06-26 18:31:37,016 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:31:37,026 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:31:37,034 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:31:37,097 INFO ]: Using default assertion order modulation [2018-06-26 18:31:37,098 INFO ]: Interprodecural is true [2018-06-26 18:31:37,098 INFO ]: Hoare is false [2018-06-26 18:31:37,098 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:31:37,098 INFO ]: Backedges is TWOTRACK [2018-06-26 18:31:37,098 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:31:37,098 INFO ]: Difference is false [2018-06-26 18:31:37,098 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:31:37,098 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:31:37,115 INFO ]: Start isEmpty. Operand 30 states. [2018-06-26 18:31:37,130 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:31:37,130 INFO ]: Found error trace [2018-06-26 18:31:37,131 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:31:37,131 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:31:37,136 INFO ]: Analyzing trace with hash 41871688, now seen corresponding path program 1 times [2018-06-26 18:31:37,137 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:31:37,137 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:31:37,175 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:31:37,175 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:31:37,175 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:31:37,213 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:31:37,310 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:31:37,311 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:31:37,312 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:31:37,313 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:31:37,324 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:31:37,324 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:31:37,326 INFO ]: Start difference. First operand 30 states. Second operand 3 states. [2018-06-26 18:31:37,938 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:31:37,939 INFO ]: Finished difference Result 50 states and 112 transitions. [2018-06-26 18:31:37,939 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:31:37,940 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:31:37,940 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:31:37,953 INFO ]: With dead ends: 50 [2018-06-26 18:31:37,953 INFO ]: Without dead ends: 34 [2018-06-26 18:31:37,957 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 [2018-06-26 18:31:37,980 INFO ]: Start minimizeSevpa. Operand 34 states. [2018-06-26 18:31:38,011 INFO ]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-06-26 18:31:38,013 INFO ]: Start removeUnreachable. Operand 34 states. [2018-06-26 18:31:38,015 INFO ]: Finished removeUnreachable. Reduced from 34 states to 34 states and 68 transitions. [2018-06-26 18:31:38,016 INFO ]: Start accepts. Automaton has 34 states and 68 transitions. Word has length 5 [2018-06-26 18:31:38,017 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:31:38,017 INFO ]: Abstraction has 34 states and 68 transitions. [2018-06-26 18:31:38,017 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:31:38,017 INFO ]: Start isEmpty. Operand 34 states and 68 transitions. [2018-06-26 18:31:38,020 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:31:38,020 INFO ]: Found error trace [2018-06-26 18:31:38,020 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:31:38,020 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:31:38,020 INFO ]: Analyzing trace with hash 41573778, now seen corresponding path program 1 times [2018-06-26 18:31:38,020 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:31:38,020 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:31:38,021 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:31:38,021 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:31:38,021 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:31:38,026 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:31:38,078 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:31:38,078 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:31:38,078 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:31:38,080 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:31:38,080 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:31:38,080 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:31:38,080 INFO ]: Start difference. First operand 34 states and 68 transitions. Second operand 3 states. [2018-06-26 18:31:38,209 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:31:38,209 INFO ]: Finished difference Result 33 states and 58 transitions. [2018-06-26 18:31:38,210 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:31:38,210 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:31:38,210 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:31:38,210 INFO ]: With dead ends: 33 [2018-06-26 18:31:38,210 INFO ]: Without dead ends: 0 [2018-06-26 18:31:38,211 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 [2018-06-26 18:31:38,211 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-26 18:31:38,211 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-26 18:31:38,211 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-26 18:31:38,211 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-26 18:31:38,211 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-06-26 18:31:38,211 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:31:38,211 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-26 18:31:38,211 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:31:38,211 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-26 18:31:38,211 INFO ]: Finished isEmpty. No accepting run. [2018-06-26 18:31:38,212 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:31:38,214 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:31:38 BasicIcfg [2018-06-26 18:31:38,214 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:31:38,214 INFO ]: Toolchain (without parser) took 2334.60 ms. Allocated memory was 307.8 MB in the beginning and 326.1 MB in the end (delta: 18.4 MB). Free memory was 256.1 MB in the beginning and 275.3 MB in the end (delta: -19.2 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:31:38,216 INFO ]: SmtParser took 0.05 ms. Allocated memory is still 307.8 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:31:38,216 INFO ]: ChcToBoogie took 77.60 ms. Allocated memory is still 307.8 MB. Free memory was 256.1 MB in the beginning and 254.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:31:38,217 INFO ]: Boogie Preprocessor took 62.32 ms. Allocated memory is still 307.8 MB. Free memory was 254.1 MB in the beginning and 252.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:31:38,218 INFO ]: RCFGBuilder took 565.98 ms. Allocated memory is still 307.8 MB. Free memory was 252.2 MB in the beginning and 232.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:31:38,218 INFO ]: BlockEncodingV2 took 415.26 ms. Allocated memory is still 307.8 MB. Free memory was 232.2 MB in the beginning and 216.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:31:38,219 INFO ]: TraceAbstraction took 1204.58 ms. Allocated memory was 307.8 MB in the beginning and 326.1 MB in the end (delta: 18.4 MB). Free memory was 216.2 MB in the beginning and 275.3 MB in the end (delta: -59.1 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:31:38,223 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 45 locations, 71 edges - StatisticsResult: Encoded RCFG 30 locations, 57 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.05 ms. Allocated memory is still 307.8 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 77.60 ms. Allocated memory is still 307.8 MB. Free memory was 256.1 MB in the beginning and 254.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 62.32 ms. Allocated memory is still 307.8 MB. Free memory was 254.1 MB in the beginning and 252.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 565.98 ms. Allocated memory is still 307.8 MB. Free memory was 252.2 MB in the beginning and 232.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 415.26 ms. Allocated memory is still 307.8 MB. Free memory was 232.2 MB in the beginning and 216.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1204.58 ms. Allocated memory was 307.8 MB in the beginning and 326.1 MB in the end (delta: 18.4 MB). Free memory was 216.2 MB in the beginning and 275.3 MB in the end (delta: -59.1 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, 30 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 93 SDtfs, 31 SDslu, 37 SDs, 0 SdLazy, 94 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=1, 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, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/McCarthy9102.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-31-38-235.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/McCarthy9102.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-31-38-235.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/McCarthy9102.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-31-38-235.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/McCarthy9102.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-31-38-235.csv Received shutdown request...