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/eldarica-misc/LIA/HOLA/34.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:43:26,928 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:43:26,930 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:43:26,946 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:43:26,947 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:43:26,947 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:43:26,948 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:43:26,950 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:43:26,951 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:43:26,952 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:43:26,954 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:43:26,954 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:43:26,955 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:43:26,956 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:43:26,957 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:43:26,957 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:43:26,966 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:43:26,968 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:43:26,969 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:43:26,978 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:43:26,979 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:43:26,981 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:43:26,981 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:43:26,982 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:43:26,982 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:43:26,983 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:43:26,984 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:43:26,984 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:43:26,985 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:43:26,985 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:43:26,991 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:43:26,992 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:43:26,992 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:43:26,993 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:43:26,993 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:43:26,994 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:43:27,015 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:43:27,015 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:43:27,016 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:43:27,016 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:43:27,017 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:43:27,017 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:43:27,017 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:43:27,017 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:43:27,018 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:43:27,018 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:43:27,018 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:43:27,018 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:43:27,018 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:43:27,019 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:43:27,019 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:43:27,019 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:43:27,019 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:43:27,019 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:43:27,020 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:43:27,020 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:43:27,020 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:43:27,021 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:43:27,022 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:43:27,073 INFO ]: Repository-Root is: /tmp [2018-06-24 20:43:27,091 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:43:27,099 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:43:27,100 INFO ]: Initializing SmtParser... [2018-06-24 20:43:27,100 INFO ]: SmtParser initialized [2018-06-24 20:43:27,101 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/34.c.smt2 [2018-06-24 20:43:27,102 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 20:43:27,187 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/34.c.smt2 unknown [2018-06-24 20:43:27,656 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/34.c.smt2 [2018-06-24 20:43:27,668 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:43:27,673 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:43:27,673 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:43:27,673 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:43:27,673 INFO ]: ChcToBoogie initialized [2018-06-24 20:43:27,680 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,741 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27 Unit [2018-06-24 20:43:27,741 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:43:27,742 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:43:27,742 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:43:27,742 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:43:27,761 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,761 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,769 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,769 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,781 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,782 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,784 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,798 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:43:27,798 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:43:27,798 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:43:27,798 INFO ]: RCFGBuilder initialized [2018-06-24 20:43:27,799 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (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 20:43:27,812 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:43:27,812 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:43:27,812 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:43:27,812 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:43:27,812 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:43:27,812 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 20:43:28,278 INFO ]: Using library mode [2018-06-24 20:43:28,279 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:43:28 BoogieIcfgContainer [2018-06-24 20:43:28,279 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:43:28,279 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:43:28,279 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:43:28,280 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:43:28,281 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:43:28" (1/1) ... [2018-06-24 20:43:28,303 INFO ]: Initial Icfg 30 locations, 33 edges [2018-06-24 20:43:28,304 INFO ]: Using Remove infeasible edges [2018-06-24 20:43:28,304 INFO ]: Using Maximize final states [2018-06-24 20:43:28,305 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:43:28,305 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:43:28,306 INFO ]: Using Remove sink states [2018-06-24 20:43:28,307 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:43:28,307 INFO ]: Using Use SBE [2018-06-24 20:43:28,317 INFO ]: SBE split 0 edges [2018-06-24 20:43:28,324 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-24 20:43:28,326 INFO ]: 0 new accepting states [2018-06-24 20:43:29,008 INFO ]: Removed 55 edges and 22 locations by large block encoding [2018-06-24 20:43:29,010 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:43:29,012 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:43:29,012 INFO ]: 0 new accepting states [2018-06-24 20:43:29,012 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:43:29,012 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:43:29,012 INFO ]: Encoded RCFG 6 locations, 9 edges [2018-06-24 20:43:29,013 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:43:29 BasicIcfg [2018-06-24 20:43:29,013 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:43:29,016 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:43:29,016 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:43:29,019 INFO ]: TraceAbstraction initialized [2018-06-24 20:43:29,020 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:43:27" (1/4) ... [2018-06-24 20:43:29,020 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6610e55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:43:29, skipping insertion in model container [2018-06-24 20:43:29,020 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (2/4) ... [2018-06-24 20:43:29,021 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6610e55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:43:29, skipping insertion in model container [2018-06-24 20:43:29,021 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:43:28" (3/4) ... [2018-06-24 20:43:29,021 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6610e55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:43:29, skipping insertion in model container [2018-06-24 20:43:29,021 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:43:29" (4/4) ... [2018-06-24 20:43:29,024 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:43:29,038 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:43:29,045 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:43:29,092 INFO ]: Using default assertion order modulation [2018-06-24 20:43:29,093 INFO ]: Interprodecural is true [2018-06-24 20:43:29,093 INFO ]: Hoare is false [2018-06-24 20:43:29,093 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:43:29,093 INFO ]: Backedges is TWOTRACK [2018-06-24 20:43:29,093 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:43:29,093 INFO ]: Difference is false [2018-06-24 20:43:29,093 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:43:29,093 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:43:29,102 INFO ]: Start isEmpty. Operand 6 states. [2018-06-24 20:43:29,112 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:43:29,112 INFO ]: Found error trace [2018-06-24 20:43:29,116 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:43:29,116 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:43:29,120 INFO ]: Analyzing trace with hash 38464085, now seen corresponding path program 1 times [2018-06-24 20:43:29,121 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:43:29,121 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:43:29,153 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:29,153 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:43:29,153 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:29,242 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:29,418 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:43:29,421 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:43:29,421 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:43:29,423 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:43:29,439 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:43:29,440 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:43:29,442 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-24 20:43:29,589 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:43:29,589 INFO ]: Finished difference Result 7 states and 12 transitions. [2018-06-24 20:43:29,589 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:43:29,591 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:43:29,591 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:43:29,600 INFO ]: With dead ends: 7 [2018-06-24 20:43:29,600 INFO ]: Without dead ends: 7 [2018-06-24 20:43:29,602 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 20:43:29,615 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-24 20:43:29,628 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-24 20:43:29,630 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-24 20:43:29,630 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2018-06-24 20:43:29,631 INFO ]: Start accepts. Automaton has 7 states and 12 transitions. Word has length 5 [2018-06-24 20:43:29,631 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:43:29,631 INFO ]: Abstraction has 7 states and 12 transitions. [2018-06-24 20:43:29,631 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:43:29,631 INFO ]: Start isEmpty. Operand 7 states and 12 transitions. [2018-06-24 20:43:29,631 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 20:43:29,631 INFO ]: Found error trace [2018-06-24 20:43:29,631 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 20:43:29,632 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:43:29,632 INFO ]: Analyzing trace with hash 1192209933, now seen corresponding path program 1 times [2018-06-24 20:43:29,632 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:43:29,632 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:43:29,633 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:29,633 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:43:29,633 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:29,676 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:29,843 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:43:29,843 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:43:29,843 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) [2018-06-24 20:43:29,867 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 20:43:29,968 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:29,979 INFO ]: Computing forward predicates... [2018-06-24 20:43:30,183 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:43:30,217 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-24 20:43:30,217 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2018-06-24 20:43:30,218 INFO ]: Interpolant automaton has 6 states [2018-06-24 20:43:30,218 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-24 20:43:30,218 INFO ]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-24 20:43:30,218 INFO ]: Start difference. First operand 7 states and 12 transitions. Second operand 6 states. [2018-06-24 20:43:30,411 WARN ]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-24 20:43:30,756 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:43:30,756 INFO ]: Finished difference Result 13 states and 30 transitions. [2018-06-24 20:43:30,757 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-24 20:43:30,757 INFO ]: Start accepts. Automaton has 6 states. Word has length 6 [2018-06-24 20:43:30,757 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:43:30,758 INFO ]: With dead ends: 13 [2018-06-24 20:43:30,758 INFO ]: Without dead ends: 13 [2018-06-24 20:43:30,758 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-06-24 20:43:30,758 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-24 20:43:30,760 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 10. [2018-06-24 20:43:30,760 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-24 20:43:30,760 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 21 transitions. [2018-06-24 20:43:30,760 INFO ]: Start accepts. Automaton has 10 states and 21 transitions. Word has length 6 [2018-06-24 20:43:30,760 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:43:30,760 INFO ]: Abstraction has 10 states and 21 transitions. [2018-06-24 20:43:30,760 INFO ]: Interpolant automaton has 6 states. [2018-06-24 20:43:30,760 INFO ]: Start isEmpty. Operand 10 states and 21 transitions. [2018-06-24 20:43:30,761 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-24 20:43:30,761 INFO ]: Found error trace [2018-06-24 20:43:30,761 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:43:30,761 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:43:30,761 INFO ]: Analyzing trace with hash -1693603880, now seen corresponding path program 1 times [2018-06-24 20:43:30,761 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:43:30,761 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:43:30,762 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:30,762 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:43:30,762 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:30,803 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:30,949 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:43:30,950 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:43:30,950 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 20:43:30,957 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:43:31,055 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:31,062 INFO ]: Computing forward predicates... [2018-06-24 20:43:31,242 INFO ]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:43:31,262 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 20:43:31,262 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2018-06-24 20:43:31,262 INFO ]: Interpolant automaton has 7 states [2018-06-24 20:43:31,262 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-24 20:43:31,263 INFO ]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:43:31,263 INFO ]: Start difference. First operand 10 states and 21 transitions. Second operand 7 states. [2018-06-24 20:43:31,542 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:43:31,542 INFO ]: Finished difference Result 20 states and 51 transitions. [2018-06-24 20:43:31,543 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-24 20:43:31,543 INFO ]: Start accepts. Automaton has 7 states. Word has length 7 [2018-06-24 20:43:31,543 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:43:31,544 INFO ]: With dead ends: 20 [2018-06-24 20:43:31,544 INFO ]: Without dead ends: 20 [2018-06-24 20:43:31,544 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-06-24 20:43:31,544 INFO ]: Start minimizeSevpa. Operand 20 states. [2018-06-24 20:43:31,547 INFO ]: Finished minimizeSevpa. Reduced states from 20 to 13. [2018-06-24 20:43:31,547 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-24 20:43:31,548 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 30 transitions. [2018-06-24 20:43:31,548 INFO ]: Start accepts. Automaton has 13 states and 30 transitions. Word has length 7 [2018-06-24 20:43:31,548 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:43:31,548 INFO ]: Abstraction has 13 states and 30 transitions. [2018-06-24 20:43:31,548 INFO ]: Interpolant automaton has 7 states. [2018-06-24 20:43:31,548 INFO ]: Start isEmpty. Operand 13 states and 30 transitions. [2018-06-24 20:43:31,548 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-24 20:43:31,548 INFO ]: Found error trace [2018-06-24 20:43:31,548 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-06-24 20:43:31,548 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:43:31,548 INFO ]: Analyzing trace with hash -74785749, now seen corresponding path program 1 times [2018-06-24 20:43:31,548 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:43:31,548 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:43:31,549 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:31,549 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:43:31,549 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:31,616 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:31,729 INFO ]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:43:31,729 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:43:31,729 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 20:43:31,738 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:43:31,827 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:31,832 INFO ]: Computing forward predicates... [2018-06-24 20:43:32,270 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:43:32,295 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 20:43:32,295 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-24 20:43:32,295 INFO ]: Interpolant automaton has 10 states [2018-06-24 20:43:32,295 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-24 20:43:32,295 INFO ]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-06-24 20:43:32,296 INFO ]: Start difference. First operand 13 states and 30 transitions. Second operand 10 states. [2018-06-24 20:43:32,454 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:43:32,454 INFO ]: Finished difference Result 38 states and 105 transitions. [2018-06-24 20:43:32,469 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-24 20:43:32,469 INFO ]: Start accepts. Automaton has 10 states. Word has length 8 [2018-06-24 20:43:32,469 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:43:32,470 INFO ]: With dead ends: 38 [2018-06-24 20:43:32,470 INFO ]: Without dead ends: 17 [2018-06-24 20:43:32,470 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2018-06-24 20:43:32,470 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-24 20:43:32,472 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-06-24 20:43:32,472 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-24 20:43:32,473 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 26 transitions. [2018-06-24 20:43:32,473 INFO ]: Start accepts. Automaton has 15 states and 26 transitions. Word has length 8 [2018-06-24 20:43:32,473 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:43:32,473 INFO ]: Abstraction has 15 states and 26 transitions. [2018-06-24 20:43:32,473 INFO ]: Interpolant automaton has 10 states. [2018-06-24 20:43:32,473 INFO ]: Start isEmpty. Operand 15 states and 26 transitions. [2018-06-24 20:43:32,473 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:43:32,473 INFO ]: Found error trace [2018-06-24 20:43:32,473 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2018-06-24 20:43:32,473 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:43:32,473 INFO ]: Analyzing trace with hash 1979202938, now seen corresponding path program 2 times [2018-06-24 20:43:32,474 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:43:32,474 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:43:32,474 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:32,474 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:43:32,474 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:32,525 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:32,743 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:43:32,743 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:43:32,743 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 20:43:32,751 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-24 20:43:32,875 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-24 20:43:32,875 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:32,882 INFO ]: Computing forward predicates... [2018-06-24 20:43:33,118 INFO ]: Checked inductivity of 10 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-24 20:43:33,140 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 20:43:33,141 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2018-06-24 20:43:33,141 INFO ]: Interpolant automaton has 9 states [2018-06-24 20:43:33,141 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-24 20:43:33,141 INFO ]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-06-24 20:43:33,141 INFO ]: Start difference. First operand 15 states and 26 transitions. Second operand 9 states. [2018-06-24 20:43:33,373 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:43:33,373 INFO ]: Finished difference Result 23 states and 50 transitions. [2018-06-24 20:43:33,374 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-06-24 20:43:33,374 INFO ]: Start accepts. Automaton has 9 states. Word has length 9 [2018-06-24 20:43:33,374 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:43:33,374 INFO ]: With dead ends: 23 [2018-06-24 20:43:33,374 INFO ]: Without dead ends: 23 [2018-06-24 20:43:33,375 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2018-06-24 20:43:33,375 INFO ]: Start minimizeSevpa. Operand 23 states. [2018-06-24 20:43:33,377 INFO ]: Finished minimizeSevpa. Reduced states from 23 to 19. [2018-06-24 20:43:33,377 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-24 20:43:33,378 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 38 transitions. [2018-06-24 20:43:33,378 INFO ]: Start accepts. Automaton has 19 states and 38 transitions. Word has length 9 [2018-06-24 20:43:33,378 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:43:33,378 INFO ]: Abstraction has 19 states and 38 transitions. [2018-06-24 20:43:33,378 INFO ]: Interpolant automaton has 9 states. [2018-06-24 20:43:33,378 INFO ]: Start isEmpty. Operand 19 states and 38 transitions. [2018-06-24 20:43:33,378 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-24 20:43:33,378 INFO ]: Found error trace [2018-06-24 20:43:33,378 INFO ]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2018-06-24 20:43:33,378 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:43:33,378 INFO ]: Analyzing trace with hash 1225572232, now seen corresponding path program 3 times [2018-06-24 20:43:33,378 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:43:33,378 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:43:33,379 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:33,379 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-24 20:43:33,379 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:33,406 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:33,661 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:43:33,661 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:43:33,661 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 20:43:33,669 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-24 20:43:33,762 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-24 20:43:33,762 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:33,767 INFO ]: Computing forward predicates... [2018-06-24 20:43:33,790 INFO ]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-24 20:43:33,812 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 20:43:33,812 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 10 [2018-06-24 20:43:33,813 INFO ]: Interpolant automaton has 10 states [2018-06-24 20:43:33,813 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-24 20:43:33,813 INFO ]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-06-24 20:43:33,813 INFO ]: Start difference. First operand 19 states and 38 transitions. Second operand 10 states. [2018-06-24 20:43:33,941 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:43:33,942 INFO ]: Finished difference Result 16 states and 23 transitions. [2018-06-24 20:43:33,942 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-24 20:43:33,942 INFO ]: Start accepts. Automaton has 10 states. Word has length 10 [2018-06-24 20:43:33,942 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:43:33,942 INFO ]: With dead ends: 16 [2018-06-24 20:43:33,942 INFO ]: Without dead ends: 0 [2018-06-24 20:43:33,942 INFO ]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2018-06-24 20:43:33,942 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 20:43:33,942 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 20:43:33,942 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 20:43:33,942 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 20:43:33,943 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-06-24 20:43:33,943 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:43:33,943 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 20:43:33,943 INFO ]: Interpolant automaton has 10 states. [2018-06-24 20:43:33,943 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 20:43:33,943 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 20:43:33,945 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:43:33,946 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:43:33 BasicIcfg [2018-06-24 20:43:33,946 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:43:33,947 INFO ]: Toolchain (without parser) took 6278.47 ms. Allocated memory was 308.8 MB in the beginning and 382.2 MB in the end (delta: 73.4 MB). Free memory was 252.3 MB in the beginning and 263.1 MB in the end (delta: -10.8 MB). Peak memory consumption was 62.6 MB. Max. memory is 3.6 GB. [2018-06-24 20:43:33,948 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:43:33,948 INFO ]: ChcToBoogie took 68.37 ms. Allocated memory is still 308.8 MB. Free memory was 251.3 MB in the beginning and 249.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:43:33,949 INFO ]: Boogie Preprocessor took 56.30 ms. Allocated memory is still 308.8 MB. Free memory was 249.3 MB in the beginning and 247.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:43:33,949 INFO ]: RCFGBuilder took 480.30 ms. Allocated memory is still 308.8 MB. Free memory was 247.3 MB in the beginning and 221.2 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 3.6 GB. [2018-06-24 20:43:33,949 INFO ]: BlockEncodingV2 took 733.68 ms. Allocated memory was 308.8 MB in the beginning and 325.6 MB in the end (delta: 16.8 MB). Free memory was 221.2 MB in the beginning and 278.7 MB in the end (delta: -57.5 MB). Peak memory consumption was 39.4 MB. Max. memory is 3.6 GB. [2018-06-24 20:43:33,955 INFO ]: TraceAbstraction took 4930.80 ms. Allocated memory was 325.6 MB in the beginning and 382.2 MB in the end (delta: 56.6 MB). Free memory was 278.7 MB in the beginning and 263.1 MB in the end (delta: 15.6 MB). Peak memory consumption was 72.2 MB. Max. memory is 3.6 GB. [2018-06-24 20:43:33,958 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 30 locations, 33 edges - StatisticsResult: Encoded RCFG 6 locations, 9 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 68.37 ms. Allocated memory is still 308.8 MB. Free memory was 251.3 MB in the beginning and 249.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 56.30 ms. Allocated memory is still 308.8 MB. Free memory was 249.3 MB in the beginning and 247.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 480.30 ms. Allocated memory is still 308.8 MB. Free memory was 247.3 MB in the beginning and 221.2 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 733.68 ms. Allocated memory was 308.8 MB in the beginning and 325.6 MB in the end (delta: 16.8 MB). Free memory was 221.2 MB in the beginning and 278.7 MB in the end (delta: -57.5 MB). Peak memory consumption was 39.4 MB. Max. memory is 3.6 GB. * TraceAbstraction took 4930.80 ms. Allocated memory was 325.6 MB in the beginning and 382.2 MB in the end (delta: 56.6 MB). Free memory was 278.7 MB in the beginning and 263.1 MB in the end (delta: 15.6 MB). Peak memory consumption was 72.2 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 2 procedures, 6 locations, 1 error locations. SAFE Result, 4.8s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 0 SDslu, 62 SDs, 0 SdLazy, 184 SolverSat, 169 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=5, 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, 6 MinimizatonAttempts, 16 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 85 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 74 ConstructedInterpolants, 10 QuantifiedInterpolants, 2658 SizeOfPredicates, 214 NumberOfNonLiveVariables, 3439 ConjunctsInSsa, 272 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 27/70 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/34.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-43-33-978.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/34.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-43-33-978.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/34.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-43-33-978.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/34.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-43-33-978.csv Received shutdown request...