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/Consistency/fortune-full-nonrobust.17.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 17:24:50,407 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 17:24:50,409 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 17:24:50,422 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 17:24:50,422 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 17:24:50,423 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 17:24:50,424 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 17:24:50,425 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 17:24:50,427 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 17:24:50,428 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 17:24:50,428 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 17:24:50,429 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 17:24:50,429 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 17:24:50,432 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 17:24:50,433 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 17:24:50,434 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 17:24:50,434 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 17:24:50,438 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 17:24:50,448 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 17:24:50,450 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 17:24:50,451 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 17:24:50,452 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 17:24:50,454 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 17:24:50,454 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 17:24:50,454 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 17:24:50,455 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 17:24:50,456 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 17:24:50,456 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 17:24:50,457 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 17:24:50,458 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 17:24:50,458 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 17:24:50,458 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 17:24:50,459 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 17:24:50,459 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 17:24:50,459 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 17:24:50,460 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 17:24:50,460 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 17:24:50,486 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 17:24:50,486 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 17:24:50,486 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 17:24:50,486 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 17:24:50,487 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 17:24:50,488 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 17:24:50,488 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 17:24:50,488 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 17:24:50,488 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 17:24:50,489 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 17:24:50,489 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 17:24:50,489 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 17:24:50,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 17:24:50,490 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 17:24:50,490 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 17:24:50,490 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 17:24:50,490 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 17:24:50,490 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 17:24:50,491 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 17:24:50,491 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 17:24:50,491 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 17:24:50,493 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 17:24:50,494 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 17:24:50,540 INFO ]: Repository-Root is: /tmp [2018-06-26 17:24:50,554 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 17:24:50,558 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 17:24:50,559 INFO ]: Initializing SmtParser... [2018-06-26 17:24:50,560 INFO ]: SmtParser initialized [2018-06-26 17:24:50,560 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full-nonrobust.17.smt2 [2018-06-26 17:24:50,561 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 17:24:50,649 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full-nonrobust.17.smt2 unknown [2018-06-26 17:24:51,338 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full-nonrobust.17.smt2 [2018-06-26 17:24:51,345 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 17:24:51,351 INFO ]: Walking toolchain with 5 elements. [2018-06-26 17:24:51,351 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 17:24:51,351 INFO ]: Initializing ChcToBoogie... [2018-06-26 17:24:51,351 INFO ]: ChcToBoogie initialized [2018-06-26 17:24:51,355 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 05:24:51" (1/1) ... [2018-06-26 17:24:51,516 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:24:51 Unit [2018-06-26 17:24:51,517 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 17:24:51,522 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 17:24:51,522 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 17:24:51,522 INFO ]: Boogie Preprocessor initialized [2018-06-26 17:24:51,543 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:24:51" (1/1) ... [2018-06-26 17:24:51,543 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:24:51" (1/1) ... [2018-06-26 17:24:51,560 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:24:51" (1/1) ... [2018-06-26 17:24:51,561 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:24:51" (1/1) ... [2018-06-26 17:24:51,581 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:24:51" (1/1) ... [2018-06-26 17:24:51,585 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:24:51" (1/1) ... [2018-06-26 17:24:51,591 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:24:51" (1/1) ... [2018-06-26 17:24:51,597 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 17:24:51,597 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 17:24:51,597 INFO ]: Initializing RCFGBuilder... [2018-06-26 17:24:51,598 INFO ]: RCFGBuilder initialized [2018-06-26 17:24:51,598 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:24:51" (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 17:24:51,610 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 17:24:51,610 INFO ]: Found specification of procedure gotoProc [2018-06-26 17:24:51,610 INFO ]: Found implementation of procedure gotoProc [2018-06-26 17:24:51,610 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 17:24:51,610 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 17:24:51,610 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 17:24:53,828 INFO ]: Using library mode [2018-06-26 17:24:53,829 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:24:53 BoogieIcfgContainer [2018-06-26 17:24:53,829 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 17:24:53,829 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 17:24:53,829 INFO ]: Initializing BlockEncodingV2... [2018-06-26 17:24:53,830 INFO ]: BlockEncodingV2 initialized [2018-06-26 17:24:53,833 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:24:53" (1/1) ... [2018-06-26 17:24:53,879 INFO ]: Initial Icfg 147 locations, 288 edges [2018-06-26 17:24:53,880 INFO ]: Using Remove infeasible edges [2018-06-26 17:24:53,880 INFO ]: Using Maximize final states [2018-06-26 17:24:53,881 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 17:24:53,881 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 17:24:53,883 INFO ]: Using Remove sink states [2018-06-26 17:24:53,884 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 17:24:53,884 INFO ]: Using Use SBE [2018-06-26 17:24:53,901 INFO ]: SBE split 0 edges [2018-06-26 17:24:53,907 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-26 17:24:53,909 INFO ]: 0 new accepting states [2018-06-26 17:24:54,629 INFO ]: Removed 55 edges and 8 locations by large block encoding [2018-06-26 17:24:54,632 INFO ]: Removed 5 edges and 2 locations by removing sink states [2018-06-26 17:24:54,637 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 17:24:54,637 INFO ]: 0 new accepting states [2018-06-26 17:24:54,639 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 17:24:54,640 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 17:24:54,645 INFO ]: Encoded RCFG 135 locations, 271 edges [2018-06-26 17:24:54,645 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 05:24:54 BasicIcfg [2018-06-26 17:24:54,645 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 17:24:54,646 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 17:24:54,646 INFO ]: Initializing TraceAbstraction... [2018-06-26 17:24:54,650 INFO ]: TraceAbstraction initialized [2018-06-26 17:24:54,650 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 05:24:51" (1/4) ... [2018-06-26 17:24:54,651 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75659988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 05:24:54, skipping insertion in model container [2018-06-26 17:24:54,651 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:24:51" (2/4) ... [2018-06-26 17:24:54,651 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75659988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 05:24:54, skipping insertion in model container [2018-06-26 17:24:54,651 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:24:53" (3/4) ... [2018-06-26 17:24:54,651 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75659988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 05:24:54, skipping insertion in model container [2018-06-26 17:24:54,651 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 05:24:54" (4/4) ... [2018-06-26 17:24:54,653 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 17:24:54,660 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 17:24:54,667 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 17:24:54,707 INFO ]: Using default assertion order modulation [2018-06-26 17:24:54,708 INFO ]: Interprodecural is true [2018-06-26 17:24:54,708 INFO ]: Hoare is false [2018-06-26 17:24:54,708 INFO ]: Compute interpolants for FPandBP [2018-06-26 17:24:54,708 INFO ]: Backedges is TWOTRACK [2018-06-26 17:24:54,708 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 17:24:54,708 INFO ]: Difference is false [2018-06-26 17:24:54,708 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 17:24:54,708 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 17:24:54,723 INFO ]: Start isEmpty. Operand 135 states. [2018-06-26 17:24:54,769 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 17:24:54,769 INFO ]: Found error trace [2018-06-26 17:24:54,770 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 17:24:54,771 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:24:54,776 INFO ]: Analyzing trace with hash 180734596, now seen corresponding path program 1 times [2018-06-26 17:24:54,778 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:24:54,779 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:24:54,826 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:24:54,826 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:24:54,826 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:24:54,912 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:24:55,088 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 17:24:55,090 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:24:55,090 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 17:24:55,091 INFO ]: Interpolant automaton has 3 states [2018-06-26 17:24:55,102 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 17:24:55,103 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:24:55,105 INFO ]: Start difference. First operand 135 states. Second operand 3 states. [2018-06-26 17:24:58,024 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:24:58,024 INFO ]: Finished difference Result 267 states and 538 transitions. [2018-06-26 17:24:58,025 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 17:24:58,026 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 17:24:58,026 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:24:58,071 INFO ]: With dead ends: 267 [2018-06-26 17:24:58,071 INFO ]: Without dead ends: 267 [2018-06-26 17:24:58,073 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 17:24:58,091 INFO ]: Start minimizeSevpa. Operand 267 states. [2018-06-26 17:24:58,220 INFO ]: Finished minimizeSevpa. Reduced states from 267 to 267. [2018-06-26 17:24:58,221 INFO ]: Start removeUnreachable. Operand 267 states. [2018-06-26 17:24:58,243 INFO ]: Finished removeUnreachable. Reduced from 267 states to 267 states and 538 transitions. [2018-06-26 17:24:58,245 INFO ]: Start accepts. Automaton has 267 states and 538 transitions. Word has length 5 [2018-06-26 17:24:58,246 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:24:58,246 INFO ]: Abstraction has 267 states and 538 transitions. [2018-06-26 17:24:58,246 INFO ]: Interpolant automaton has 3 states. [2018-06-26 17:24:58,246 INFO ]: Start isEmpty. Operand 267 states and 538 transitions. [2018-06-26 17:24:58,258 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 17:24:58,258 INFO ]: Found error trace [2018-06-26 17:24:58,258 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 17:24:58,258 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:24:58,258 INFO ]: Analyzing trace with hash 180865292, now seen corresponding path program 1 times [2018-06-26 17:24:58,258 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:24:58,258 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:24:58,259 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:24:58,259 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:24:58,259 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:24:58,279 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:24:58,374 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 17:24:58,374 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:24:58,375 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 17:24:58,376 INFO ]: Interpolant automaton has 3 states [2018-06-26 17:24:58,376 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 17:24:58,376 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:24:58,376 INFO ]: Start difference. First operand 267 states and 538 transitions. Second operand 3 states. [2018-06-26 17:25:00,111 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:25:00,111 INFO ]: Finished difference Result 399 states and 806 transitions. [2018-06-26 17:25:00,111 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 17:25:00,112 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 17:25:00,112 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:25:00,142 INFO ]: With dead ends: 399 [2018-06-26 17:25:00,142 INFO ]: Without dead ends: 399 [2018-06-26 17:25:00,143 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 17:25:00,145 INFO ]: Start minimizeSevpa. Operand 399 states. [2018-06-26 17:25:00,240 INFO ]: Finished minimizeSevpa. Reduced states from 399 to 399. [2018-06-26 17:25:00,241 INFO ]: Start removeUnreachable. Operand 399 states. [2018-06-26 17:25:00,271 INFO ]: Finished removeUnreachable. Reduced from 399 states to 399 states and 806 transitions. [2018-06-26 17:25:00,271 INFO ]: Start accepts. Automaton has 399 states and 806 transitions. Word has length 5 [2018-06-26 17:25:00,271 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:25:00,271 INFO ]: Abstraction has 399 states and 806 transitions. [2018-06-26 17:25:00,271 INFO ]: Interpolant automaton has 3 states. [2018-06-26 17:25:00,271 INFO ]: Start isEmpty. Operand 399 states and 806 transitions. [2018-06-26 17:25:00,311 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-26 17:25:00,311 INFO ]: Found error trace [2018-06-26 17:25:00,311 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 17:25:00,311 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:25:00,311 INFO ]: Analyzing trace with hash 1366778616, now seen corresponding path program 1 times [2018-06-26 17:25:00,311 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:25:00,311 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:25:00,312 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:25:00,312 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:25:00,312 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:25:00,356 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:25:00,831 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 17:25:00,831 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:25:00,831 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-26 17:25:00,832 INFO ]: Interpolant automaton has 6 states [2018-06-26 17:25:00,832 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-26 17:25:00,832 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-26 17:25:00,832 INFO ]: Start difference. First operand 399 states and 806 transitions. Second operand 6 states. [2018-06-26 17:25:09,103 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:25:09,103 INFO ]: Finished difference Result 1368 states and 5137 transitions. [2018-06-26 17:25:09,103 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-26 17:25:09,103 INFO ]: Start accepts. Automaton has 6 states. Word has length 10 [2018-06-26 17:25:09,103 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:25:09,386 INFO ]: With dead ends: 1368 [2018-06-26 17:25:09,386 INFO ]: Without dead ends: 1368 [2018-06-26 17:25:09,386 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-06-26 17:25:09,387 INFO ]: Start minimizeSevpa. Operand 1368 states. [2018-06-26 17:25:09,906 INFO ]: Finished minimizeSevpa. Reduced states from 1368 to 829. [2018-06-26 17:25:09,906 INFO ]: Start removeUnreachable. Operand 829 states. [2018-06-26 17:25:09,958 INFO ]: Finished removeUnreachable. Reduced from 829 states to 829 states and 2224 transitions. [2018-06-26 17:25:09,958 INFO ]: Start accepts. Automaton has 829 states and 2224 transitions. Word has length 10 [2018-06-26 17:25:09,960 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:25:09,960 INFO ]: Abstraction has 829 states and 2224 transitions. [2018-06-26 17:25:09,960 INFO ]: Interpolant automaton has 6 states. [2018-06-26 17:25:09,960 INFO ]: Start isEmpty. Operand 829 states and 2224 transitions. [2018-06-26 17:25:10,028 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-26 17:25:10,029 INFO ]: Found error trace [2018-06-26 17:25:10,029 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 17:25:10,029 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:25:10,030 INFO ]: Analyzing trace with hash 1424036918, now seen corresponding path program 1 times [2018-06-26 17:25:10,030 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:25:10,030 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:25:10,030 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:25:10,030 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:25:10,030 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:25:10,077 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:25:10,485 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 17:25:10,485 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:25:10,485 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-26 17:25:10,485 INFO ]: Interpolant automaton has 6 states [2018-06-26 17:25:10,485 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-26 17:25:10,485 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-26 17:25:10,485 INFO ]: Start difference. First operand 829 states and 2224 transitions. Second operand 6 states. [2018-06-26 17:25:16,627 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:25:16,627 INFO ]: Finished difference Result 3309 states and 15992 transitions. [2018-06-26 17:25:16,627 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-26 17:25:16,627 INFO ]: Start accepts. Automaton has 6 states. Word has length 10 [2018-06-26 17:25:16,627 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:25:17,040 INFO ]: With dead ends: 3309 [2018-06-26 17:25:17,040 INFO ]: Without dead ends: 3309 [2018-06-26 17:25:17,040 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-06-26 17:25:17,042 INFO ]: Start minimizeSevpa. Operand 3309 states. [2018-06-26 17:25:18,418 INFO ]: Finished minimizeSevpa. Reduced states from 3309 to 2345. [2018-06-26 17:25:18,418 INFO ]: Start removeUnreachable. Operand 2345 states. [2018-06-26 17:25:18,724 INFO ]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 8921 transitions. [2018-06-26 17:25:18,724 INFO ]: Start accepts. Automaton has 2345 states and 8921 transitions. Word has length 10 [2018-06-26 17:25:18,724 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:25:18,724 INFO ]: Abstraction has 2345 states and 8921 transitions. [2018-06-26 17:25:18,724 INFO ]: Interpolant automaton has 6 states. [2018-06-26 17:25:18,725 INFO ]: Start isEmpty. Operand 2345 states and 8921 transitions. [2018-06-26 17:25:18,865 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-26 17:25:18,865 INFO ]: Found error trace [2018-06-26 17:25:18,865 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 17:25:18,865 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:25:18,866 INFO ]: Analyzing trace with hash 1481295220, now seen corresponding path program 1 times [2018-06-26 17:25:18,866 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:25:18,866 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:25:18,866 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:25:18,866 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:25:18,866 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:25:18,899 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:25:19,339 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 17:25:19,339 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:25:19,339 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-26 17:25:19,339 INFO ]: Interpolant automaton has 6 states [2018-06-26 17:25:19,339 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-26 17:25:19,339 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-26 17:25:19,340 INFO ]: Start difference. First operand 2345 states and 8921 transitions. Second operand 6 states. [2018-06-26 17:25:26,112 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:25:26,112 INFO ]: Finished difference Result 4931 states and 27014 transitions. [2018-06-26 17:25:26,132 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-26 17:25:26,132 INFO ]: Start accepts. Automaton has 6 states. Word has length 10 [2018-06-26 17:25:26,133 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:25:26,852 INFO ]: With dead ends: 4931 [2018-06-26 17:25:26,852 INFO ]: Without dead ends: 4931 [2018-06-26 17:25:26,852 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-06-26 17:25:26,854 INFO ]: Start minimizeSevpa. Operand 4931 states. [2018-06-26 17:25:28,685 INFO ]: Finished minimizeSevpa. Reduced states from 4931 to 2893. [2018-06-26 17:25:28,685 INFO ]: Start removeUnreachable. Operand 2893 states. [2018-06-26 17:25:28,878 INFO ]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 12218 transitions. [2018-06-26 17:25:28,878 INFO ]: Start accepts. Automaton has 2893 states and 12218 transitions. Word has length 10 [2018-06-26 17:25:28,879 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:25:28,879 INFO ]: Abstraction has 2893 states and 12218 transitions. [2018-06-26 17:25:28,879 INFO ]: Interpolant automaton has 6 states. [2018-06-26 17:25:28,879 INFO ]: Start isEmpty. Operand 2893 states and 12218 transitions. [2018-06-26 17:25:28,998 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-26 17:25:28,998 INFO ]: Found error trace [2018-06-26 17:25:28,998 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 17:25:28,998 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:25:28,998 INFO ]: Analyzing trace with hash -1602668993, now seen corresponding path program 1 times [2018-06-26 17:25:28,998 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:25:28,998 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:25:28,999 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:25:28,999 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:25:28,999 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:25:29,017 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:25:29,095 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 17:25:29,095 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:25:29,095 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 17:25:29,096 INFO ]: Interpolant automaton has 3 states [2018-06-26 17:25:29,096 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 17:25:29,096 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:25:29,096 INFO ]: Start difference. First operand 2893 states and 12218 transitions. Second operand 3 states. [2018-06-26 17:25:30,566 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:25:30,566 INFO ]: Finished difference Result 3131 states and 13217 transitions. [2018-06-26 17:25:30,566 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 17:25:30,566 INFO ]: Start accepts. Automaton has 3 states. Word has length 10 [2018-06-26 17:25:30,566 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:25:30,877 INFO ]: With dead ends: 3131 [2018-06-26 17:25:30,877 INFO ]: Without dead ends: 3131 [2018-06-26 17:25:30,877 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 17:25:30,879 INFO ]: Start minimizeSevpa. Operand 3131 states. [2018-06-26 17:25:31,894 INFO ]: Finished minimizeSevpa. Reduced states from 3131 to 3131. [2018-06-26 17:25:31,894 INFO ]: Start removeUnreachable. Operand 3131 states. [2018-06-26 17:25:32,324 INFO ]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 13217 transitions. [2018-06-26 17:25:32,324 INFO ]: Start accepts. Automaton has 3131 states and 13217 transitions. Word has length 10 [2018-06-26 17:25:32,324 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:25:32,324 INFO ]: Abstraction has 3131 states and 13217 transitions. [2018-06-26 17:25:32,324 INFO ]: Interpolant automaton has 3 states. [2018-06-26 17:25:32,324 INFO ]: Start isEmpty. Operand 3131 states and 13217 transitions. [2018-06-26 17:25:32,394 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-26 17:25:32,394 INFO ]: Found error trace [2018-06-26 17:25:32,394 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 17:25:32,394 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:25:32,395 INFO ]: Analyzing trace with hash 1471873541, now seen corresponding path program 1 times [2018-06-26 17:25:32,395 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:25:32,395 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:25:32,395 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:25:32,395 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:25:32,395 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:25:32,428 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:25:32,621 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 17:25:32,621 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:25:32,621 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-26 17:25:32,622 INFO ]: Interpolant automaton has 6 states [2018-06-26 17:25:32,622 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-26 17:25:32,622 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-26 17:25:32,622 INFO ]: Start difference. First operand 3131 states and 13217 transitions. Second operand 6 states. [2018-06-26 17:25:38,169 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:25:38,169 INFO ]: Finished difference Result 6182 states and 36699 transitions. [2018-06-26 17:25:38,173 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-26 17:25:38,173 INFO ]: Start accepts. Automaton has 6 states. Word has length 10 [2018-06-26 17:25:38,173 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:25:39,303 INFO ]: With dead ends: 6182 [2018-06-26 17:25:39,303 INFO ]: Without dead ends: 5865 [2018-06-26 17:25:39,303 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-06-26 17:25:39,305 INFO ]: Start minimizeSevpa. Operand 5865 states. [2018-06-26 17:25:41,662 INFO ]: Finished minimizeSevpa. Reduced states from 5865 to 3804. [2018-06-26 17:25:41,663 INFO ]: Start removeUnreachable. Operand 3804 states. [2018-06-26 17:25:41,907 INFO ]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 16552 transitions. [2018-06-26 17:25:41,907 INFO ]: Start accepts. Automaton has 3804 states and 16552 transitions. Word has length 10 [2018-06-26 17:25:41,907 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:25:41,907 INFO ]: Abstraction has 3804 states and 16552 transitions. [2018-06-26 17:25:41,907 INFO ]: Interpolant automaton has 6 states. [2018-06-26 17:25:41,907 INFO ]: Start isEmpty. Operand 3804 states and 16552 transitions. [2018-06-26 17:25:42,229 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-26 17:25:42,229 INFO ]: Found error trace [2018-06-26 17:25:42,229 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 17:25:42,229 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:25:42,229 INFO ]: Analyzing trace with hash 1471875463, now seen corresponding path program 1 times [2018-06-26 17:25:42,229 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:25:42,229 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:25:42,230 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:25:42,230 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:25:42,230 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:25:42,260 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:25:42,366 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 17:25:42,366 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:25:42,366 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-26 17:25:42,366 INFO ]: Interpolant automaton has 6 states [2018-06-26 17:25:42,366 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-26 17:25:42,366 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-26 17:25:42,366 INFO ]: Start difference. First operand 3804 states and 16552 transitions. Second operand 6 states. Received shutdown request... [2018-06-26 17:25:44,969 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-26 17:25:44,969 WARN ]: Verification canceled [2018-06-26 17:25:44,972 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 17:25:44,973 WARN ]: Timeout [2018-06-26 17:25:44,973 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 05:25:44 BasicIcfg [2018-06-26 17:25:44,973 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 17:25:44,974 INFO ]: Toolchain (without parser) took 53628.12 ms. Allocated memory was 308.8 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 227.4 MB in the beginning and 407.8 MB in the end (delta: -180.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-26 17:25:44,975 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 273.5 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 17:25:44,976 INFO ]: ChcToBoogie took 170.59 ms. Allocated memory is still 308.8 MB. Free memory was 227.4 MB in the beginning and 222.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. [2018-06-26 17:25:44,976 INFO ]: Boogie Preprocessor took 74.83 ms. Allocated memory is still 308.8 MB. Free memory was 222.4 MB in the beginning and 218.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-26 17:25:44,977 INFO ]: RCFGBuilder took 2231.60 ms. Allocated memory was 308.8 MB in the beginning and 323.0 MB in the end (delta: 14.2 MB). Free memory was 218.4 MB in the beginning and 217.6 MB in the end (delta: 801.5 kB). Peak memory consumption was 36.1 MB. Max. memory is 3.6 GB. [2018-06-26 17:25:44,977 INFO ]: BlockEncodingV2 took 815.52 ms. Allocated memory was 323.0 MB in the beginning and 352.8 MB in the end (delta: 29.9 MB). Free memory was 217.6 MB in the beginning and 312.2 MB in the end (delta: -94.7 MB). Peak memory consumption was 44.4 MB. Max. memory is 3.6 GB. [2018-06-26 17:25:44,978 INFO ]: TraceAbstraction took 50327.01 ms. Allocated memory was 352.8 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 312.2 MB in the beginning and 407.8 MB in the end (delta: -95.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-26 17:25:44,981 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 147 locations, 288 edges - StatisticsResult: Encoded RCFG 135 locations, 271 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 273.5 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 170.59 ms. Allocated memory is still 308.8 MB. Free memory was 227.4 MB in the beginning and 222.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 74.83 ms. Allocated memory is still 308.8 MB. Free memory was 222.4 MB in the beginning and 218.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 2231.60 ms. Allocated memory was 308.8 MB in the beginning and 323.0 MB in the end (delta: 14.2 MB). Free memory was 218.4 MB in the beginning and 217.6 MB in the end (delta: 801.5 kB). Peak memory consumption was 36.1 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 815.52 ms. Allocated memory was 323.0 MB in the beginning and 352.8 MB in the end (delta: 29.9 MB). Free memory was 217.6 MB in the beginning and 312.2 MB in the end (delta: -94.7 MB). Peak memory consumption was 44.4 MB. Max. memory is 3.6 GB. * TraceAbstraction took 50327.01 ms. Allocated memory was 352.8 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 312.2 MB in the beginning and 407.8 MB in the end (delta: -95.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (3804states) and interpolant automaton (currently 9 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (6607 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 135 locations, 1 error locations. TIMEOUT Result, 50.2s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 38.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5686 SDtfs, 1189 SDslu, 9903 SDs, 0 SdLazy, 16172 SolverSat, 3290 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3804occurred in iteration=7, 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: 8.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 5602 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 1162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 13/13 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full-nonrobust.17.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_17-25-44-992.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full-nonrobust.17.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_17-25-44-992.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full-nonrobust.17.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_17-25-44-992.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full-nonrobust.17.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_17-25-44-992.csv Completed graceful shutdown