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/incremental.36.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:33:43,419 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:33:43,421 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:33:43,436 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:33:43,437 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:33:43,438 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:33:43,439 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:33:43,443 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:33:43,444 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:33:43,446 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:33:43,447 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:33:43,447 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:33:43,448 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:33:43,449 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:33:43,450 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:33:43,453 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:33:43,455 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:33:43,468 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:33:43,469 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:33:43,470 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:33:43,472 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:33:43,474 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:33:43,474 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:33:43,474 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:33:43,475 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:33:43,477 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:33:43,478 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:33:43,480 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:33:43,481 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:33:43,481 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:33:43,482 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:33:43,482 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:33:43,483 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:33:43,483 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:33:43,484 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:33:43,484 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:33:43,512 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:33:43,513 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:33:43,513 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:33:43,513 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:33:43,514 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:33:43,514 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:33:43,515 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:33:43,515 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:33:43,515 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:33:43,515 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:33:43,515 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:33:43,516 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:33:43,519 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:33:43,519 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:33:43,520 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:33:43,520 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:33:43,520 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:33:43,520 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:33:43,520 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:33:43,520 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:33:43,521 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:33:43,522 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:33:43,522 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:33:43,568 INFO ]: Repository-Root is: /tmp [2018-06-24 20:33:43,585 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:33:43,590 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:33:43,592 INFO ]: Initializing SmtParser... [2018-06-24 20:33:43,592 INFO ]: SmtParser initialized [2018-06-24 20:33:43,592 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental.36.smt2 [2018-06-24 20:33:43,593 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 20:33:43,676 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental.36.smt2 unknown [2018-06-24 20:33:44,449 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental.36.smt2 [2018-06-24 20:33:44,457 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:33:44,463 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:33:44,464 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:33:44,464 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:33:44,464 INFO ]: ChcToBoogie initialized [2018-06-24 20:33:44,467 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:33:44" (1/1) ... [2018-06-24 20:33:44,618 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:33:44 Unit [2018-06-24 20:33:44,619 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:33:44,619 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:33:44,619 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:33:44,619 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:33:44,640 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:33:44" (1/1) ... [2018-06-24 20:33:44,640 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:33:44" (1/1) ... [2018-06-24 20:33:44,662 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:33:44" (1/1) ... [2018-06-24 20:33:44,663 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:33:44" (1/1) ... [2018-06-24 20:33:44,706 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:33:44" (1/1) ... [2018-06-24 20:33:44,711 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:33:44" (1/1) ... [2018-06-24 20:33:44,722 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:33:44" (1/1) ... [2018-06-24 20:33:44,730 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:33:44,730 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:33:44,730 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:33:44,730 INFO ]: RCFGBuilder initialized [2018-06-24 20:33:44,731 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:33:44" (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 20:33:44,748 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:33:44,748 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:33:44,748 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:33:44,748 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:33:44,748 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:33:44,748 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 20:33:47,438 INFO ]: Using library mode [2018-06-24 20:33:47,439 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:33:47 BoogieIcfgContainer [2018-06-24 20:33:47,439 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:33:47,439 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:33:47,439 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:33:47,440 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:33:47,441 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:33:47" (1/1) ... [2018-06-24 20:33:47,486 INFO ]: Initial Icfg 146 locations, 282 edges [2018-06-24 20:33:47,488 INFO ]: Using Remove infeasible edges [2018-06-24 20:33:47,488 INFO ]: Using Maximize final states [2018-06-24 20:33:47,489 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:33:47,489 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:33:47,493 INFO ]: Using Remove sink states [2018-06-24 20:33:47,494 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:33:47,494 INFO ]: Using Use SBE [2018-06-24 20:33:47,514 INFO ]: SBE split 0 edges [2018-06-24 20:33:47,523 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-24 20:33:47,525 INFO ]: 0 new accepting states [2018-06-24 20:33:48,427 INFO ]: Removed 54 edges and 8 locations by large block encoding [2018-06-24 20:33:48,429 INFO ]: Removed 1 edges and 1 locations by removing sink states [2018-06-24 20:33:48,432 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:33:48,433 INFO ]: 0 new accepting states [2018-06-24 20:33:48,435 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:33:48,436 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:33:48,438 INFO ]: Encoded RCFG 135 locations, 270 edges [2018-06-24 20:33:48,438 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:33:48 BasicIcfg [2018-06-24 20:33:48,438 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:33:48,439 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:33:48,440 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:33:48,442 INFO ]: TraceAbstraction initialized [2018-06-24 20:33:48,443 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:33:44" (1/4) ... [2018-06-24 20:33:48,444 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fff020a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:33:48, skipping insertion in model container [2018-06-24 20:33:48,444 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:33:44" (2/4) ... [2018-06-24 20:33:48,444 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fff020a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:33:48, skipping insertion in model container [2018-06-24 20:33:48,444 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:33:47" (3/4) ... [2018-06-24 20:33:48,444 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fff020a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:33:48, skipping insertion in model container [2018-06-24 20:33:48,444 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:33:48" (4/4) ... [2018-06-24 20:33:48,446 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:33:48,456 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:33:48,463 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:33:48,514 INFO ]: Using default assertion order modulation [2018-06-24 20:33:48,515 INFO ]: Interprodecural is true [2018-06-24 20:33:48,515 INFO ]: Hoare is false [2018-06-24 20:33:48,515 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:33:48,515 INFO ]: Backedges is TWOTRACK [2018-06-24 20:33:48,515 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:33:48,515 INFO ]: Difference is false [2018-06-24 20:33:48,515 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:33:48,515 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:33:48,532 INFO ]: Start isEmpty. Operand 135 states. [2018-06-24 20:33:48,575 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-24 20:33:48,576 INFO ]: Found error trace [2018-06-24 20:33:48,577 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-24 20:33:48,577 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:33:48,582 INFO ]: Analyzing trace with hash 5699023, now seen corresponding path program 1 times [2018-06-24 20:33:48,584 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:33:48,585 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:33:48,633 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:33:48,633 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:33:48,633 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:33:48,792 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:33:49,107 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:33:49,109 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:33:49,109 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:33:49,111 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:33:49,126 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:33:49,126 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:33:49,129 INFO ]: Start difference. First operand 135 states. Second operand 3 states. [2018-06-24 20:33:51,658 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:33:51,658 INFO ]: Finished difference Result 267 states and 537 transitions. [2018-06-24 20:33:51,659 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:33:51,660 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-24 20:33:51,661 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:33:51,697 INFO ]: With dead ends: 267 [2018-06-24 20:33:51,697 INFO ]: Without dead ends: 267 [2018-06-24 20:33:51,699 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 20:33:51,718 INFO ]: Start minimizeSevpa. Operand 267 states. [2018-06-24 20:33:51,829 INFO ]: Finished minimizeSevpa. Reduced states from 267 to 267. [2018-06-24 20:33:51,831 INFO ]: Start removeUnreachable. Operand 267 states. [2018-06-24 20:33:51,846 INFO ]: Finished removeUnreachable. Reduced from 267 states to 267 states and 537 transitions. [2018-06-24 20:33:51,847 INFO ]: Start accepts. Automaton has 267 states and 537 transitions. Word has length 4 [2018-06-24 20:33:51,849 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:33:51,849 INFO ]: Abstraction has 267 states and 537 transitions. [2018-06-24 20:33:51,849 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:33:51,849 INFO ]: Start isEmpty. Operand 267 states and 537 transitions. [2018-06-24 20:33:51,884 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-24 20:33:51,884 INFO ]: Found error trace [2018-06-24 20:33:51,884 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:33:51,884 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:33:51,884 INFO ]: Analyzing trace with hash 1000456564, now seen corresponding path program 1 times [2018-06-24 20:33:51,884 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:33:51,884 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:33:51,886 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:33:51,886 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:33:51,886 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:33:51,964 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:33:52,144 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:33:52,144 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:33:52,144 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:33:52,146 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:33:52,146 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:33:52,146 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:33:52,146 INFO ]: Start difference. First operand 267 states and 537 transitions. Second operand 3 states. [2018-06-24 20:33:53,514 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:33:53,514 INFO ]: Finished difference Result 399 states and 800 transitions. [2018-06-24 20:33:53,515 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:33:53,515 INFO ]: Start accepts. Automaton has 3 states. Word has length 8 [2018-06-24 20:33:53,515 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:33:53,526 INFO ]: With dead ends: 399 [2018-06-24 20:33:53,526 INFO ]: Without dead ends: 399 [2018-06-24 20:33:53,527 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 20:33:53,527 INFO ]: Start minimizeSevpa. Operand 399 states. [2018-06-24 20:33:53,637 INFO ]: Finished minimizeSevpa. Reduced states from 399 to 399. [2018-06-24 20:33:53,637 INFO ]: Start removeUnreachable. Operand 399 states. [2018-06-24 20:33:53,655 INFO ]: Finished removeUnreachable. Reduced from 399 states to 399 states and 800 transitions. [2018-06-24 20:33:53,655 INFO ]: Start accepts. Automaton has 399 states and 800 transitions. Word has length 8 [2018-06-24 20:33:53,655 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:33:53,655 INFO ]: Abstraction has 399 states and 800 transitions. [2018-06-24 20:33:53,655 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:33:53,655 INFO ]: Start isEmpty. Operand 399 states and 800 transitions. [2018-06-24 20:33:53,676 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:33:53,676 INFO ]: Found error trace [2018-06-24 20:33:53,676 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:33:53,676 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:33:53,676 INFO ]: Analyzing trace with hash 92203906, now seen corresponding path program 1 times [2018-06-24 20:33:53,676 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:33:53,676 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:33:53,677 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:33:53,677 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:33:53,677 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:33:53,743 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:33:54,147 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:33:54,147 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:33:54,147 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-24 20:33:54,147 INFO ]: Interpolant automaton has 5 states [2018-06-24 20:33:54,147 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 20:33:54,147 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:33:54,148 INFO ]: Start difference. First operand 399 states and 800 transitions. Second operand 5 states. [2018-06-24 20:33:57,840 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:33:57,840 INFO ]: Finished difference Result 853 states and 2873 transitions. [2018-06-24 20:33:57,841 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-24 20:33:57,841 INFO ]: Start accepts. Automaton has 5 states. Word has length 9 [2018-06-24 20:33:57,841 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:33:57,934 INFO ]: With dead ends: 853 [2018-06-24 20:33:57,934 INFO ]: Without dead ends: 849 [2018-06-24 20:33:57,934 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:33:57,936 INFO ]: Start minimizeSevpa. Operand 849 states. [2018-06-24 20:33:58,352 INFO ]: Finished minimizeSevpa. Reduced states from 849 to 613. [2018-06-24 20:33:58,352 INFO ]: Start removeUnreachable. Operand 613 states. [2018-06-24 20:33:58,378 INFO ]: Finished removeUnreachable. Reduced from 613 states to 613 states and 1717 transitions. [2018-06-24 20:33:58,379 INFO ]: Start accepts. Automaton has 613 states and 1717 transitions. Word has length 9 [2018-06-24 20:33:58,379 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:33:58,379 INFO ]: Abstraction has 613 states and 1717 transitions. [2018-06-24 20:33:58,379 INFO ]: Interpolant automaton has 5 states. [2018-06-24 20:33:58,379 INFO ]: Start isEmpty. Operand 613 states and 1717 transitions. [2018-06-24 20:33:58,403 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:33:58,404 INFO ]: Found error trace [2018-06-24 20:33:58,404 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:33:58,404 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:33:58,404 INFO ]: Analyzing trace with hash 94974469, now seen corresponding path program 1 times [2018-06-24 20:33:58,404 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:33:58,404 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:33:58,406 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:33:58,406 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:33:58,406 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:33:58,467 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:33:58,752 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:33:58,752 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:33:58,752 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-24 20:33:58,752 INFO ]: Interpolant automaton has 5 states [2018-06-24 20:33:58,752 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 20:33:58,752 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:33:58,752 INFO ]: Start difference. First operand 613 states and 1717 transitions. Second operand 5 states. [2018-06-24 20:34:05,374 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:34:05,374 INFO ]: Finished difference Result 1197 states and 4934 transitions. [2018-06-24 20:34:05,374 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-24 20:34:05,374 INFO ]: Start accepts. Automaton has 5 states. Word has length 9 [2018-06-24 20:34:05,374 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:34:05,512 INFO ]: With dead ends: 1197 [2018-06-24 20:34:05,512 INFO ]: Without dead ends: 1192 [2018-06-24 20:34:05,513 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:34:05,513 INFO ]: Start minimizeSevpa. Operand 1192 states. [2018-06-24 20:34:06,054 INFO ]: Finished minimizeSevpa. Reduced states from 1192 to 790. [2018-06-24 20:34:06,054 INFO ]: Start removeUnreachable. Operand 790 states. [2018-06-24 20:34:06,082 INFO ]: Finished removeUnreachable. Reduced from 790 states to 790 states and 2779 transitions. [2018-06-24 20:34:06,082 INFO ]: Start accepts. Automaton has 790 states and 2779 transitions. Word has length 9 [2018-06-24 20:34:06,143 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:34:06,143 INFO ]: Abstraction has 790 states and 2779 transitions. [2018-06-24 20:34:06,143 INFO ]: Interpolant automaton has 5 states. [2018-06-24 20:34:06,143 INFO ]: Start isEmpty. Operand 790 states and 2779 transitions. [2018-06-24 20:34:06,170 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:34:06,170 INFO ]: Found error trace [2018-06-24 20:34:06,171 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:34:06,171 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:34:06,171 INFO ]: Analyzing trace with hash 150385729, now seen corresponding path program 1 times [2018-06-24 20:34:06,171 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:34:06,171 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:34:06,172 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:34:06,172 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:34:06,172 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:34:06,202 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:34:06,308 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:34:06,309 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:34:06,309 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:34:06,309 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:34:06,309 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:34:06,309 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:34:06,309 INFO ]: Start difference. First operand 790 states and 2779 transitions. Second operand 3 states. [2018-06-24 20:34:07,293 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:34:07,293 INFO ]: Finished difference Result 1151 states and 3603 transitions. [2018-06-24 20:34:07,294 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:34:07,294 INFO ]: Start accepts. Automaton has 3 states. Word has length 9 [2018-06-24 20:34:07,294 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:34:07,385 INFO ]: With dead ends: 1151 [2018-06-24 20:34:07,385 INFO ]: Without dead ends: 1080 [2018-06-24 20:34:07,385 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 20:34:07,386 INFO ]: Start minimizeSevpa. Operand 1080 states. [2018-06-24 20:34:07,694 INFO ]: Finished minimizeSevpa. Reduced states from 1080 to 1080. [2018-06-24 20:34:07,694 INFO ]: Start removeUnreachable. Operand 1080 states. [2018-06-24 20:34:07,750 INFO ]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 3382 transitions. [2018-06-24 20:34:07,751 INFO ]: Start accepts. Automaton has 1080 states and 3382 transitions. Word has length 9 [2018-06-24 20:34:07,751 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:34:07,751 INFO ]: Abstraction has 1080 states and 3382 transitions. [2018-06-24 20:34:07,751 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:34:07,751 INFO ]: Start isEmpty. Operand 1080 states and 3382 transitions. [2018-06-24 20:34:07,801 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:34:07,801 INFO ]: Found error trace [2018-06-24 20:34:07,801 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:34:07,801 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:34:07,801 INFO ]: Analyzing trace with hash -924397642, now seen corresponding path program 1 times [2018-06-24 20:34:07,801 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:34:07,801 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:34:07,802 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:34:07,802 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:34:07,802 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:34:07,846 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:34:08,139 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:34:08,139 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:34:08,139 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-24 20:34:08,139 INFO ]: Interpolant automaton has 5 states [2018-06-24 20:34:08,140 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 20:34:08,140 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:34:08,140 INFO ]: Start difference. First operand 1080 states and 3382 transitions. Second operand 5 states. [2018-06-24 20:34:09,378 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:34:09,378 INFO ]: Finished difference Result 2032 states and 7845 transitions. [2018-06-24 20:34:09,379 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-24 20:34:09,379 INFO ]: Start accepts. Automaton has 5 states. Word has length 9 [2018-06-24 20:34:09,379 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:34:09,532 INFO ]: With dead ends: 2032 [2018-06-24 20:34:09,532 INFO ]: Without dead ends: 2032 [2018-06-24 20:34:09,533 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:34:09,534 INFO ]: Start minimizeSevpa. Operand 2032 states. [2018-06-24 20:34:10,049 INFO ]: Finished minimizeSevpa. Reduced states from 2032 to 1570. [2018-06-24 20:34:10,050 INFO ]: Start removeUnreachable. Operand 1570 states. [2018-06-24 20:34:10,131 INFO ]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 4853 transitions. [2018-06-24 20:34:10,131 INFO ]: Start accepts. Automaton has 1570 states and 4853 transitions. Word has length 9 [2018-06-24 20:34:10,131 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:34:10,131 INFO ]: Abstraction has 1570 states and 4853 transitions. [2018-06-24 20:34:10,131 INFO ]: Interpolant automaton has 5 states. [2018-06-24 20:34:10,131 INFO ]: Start isEmpty. Operand 1570 states and 4853 transitions. [2018-06-24 20:34:10,191 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-24 20:34:10,191 INFO ]: Found error trace [2018-06-24 20:34:10,192 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:34:10,192 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:34:10,192 INFO ]: Analyzing trace with hash -784846314, now seen corresponding path program 1 times [2018-06-24 20:34:10,192 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:34:10,192 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:34:10,193 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:34:10,193 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:34:10,193 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:34:10,243 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:34:10,754 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:34:10,754 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:34:10,754 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-24 20:34:10,754 INFO ]: Interpolant automaton has 6 states [2018-06-24 20:34:10,754 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-24 20:34:10,754 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-24 20:34:10,754 INFO ]: Start difference. First operand 1570 states and 4853 transitions. Second operand 6 states. [2018-06-24 20:34:16,545 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:34:16,545 INFO ]: Finished difference Result 3616 states and 15647 transitions. [2018-06-24 20:34:16,545 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-24 20:34:16,545 INFO ]: Start accepts. Automaton has 6 states. Word has length 10 [2018-06-24 20:34:16,546 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:34:16,916 INFO ]: With dead ends: 3616 [2018-06-24 20:34:16,916 INFO ]: Without dead ends: 3616 [2018-06-24 20:34:16,916 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-06-24 20:34:16,918 INFO ]: Start minimizeSevpa. Operand 3616 states. [2018-06-24 20:34:17,715 INFO ]: Finished minimizeSevpa. Reduced states from 3616 to 2310. [2018-06-24 20:34:17,715 INFO ]: Start removeUnreachable. Operand 2310 states. [2018-06-24 20:34:17,835 INFO ]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 7140 transitions. [2018-06-24 20:34:17,835 INFO ]: Start accepts. Automaton has 2310 states and 7140 transitions. Word has length 10 [2018-06-24 20:34:17,836 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:34:17,836 INFO ]: Abstraction has 2310 states and 7140 transitions. [2018-06-24 20:34:17,836 INFO ]: Interpolant automaton has 6 states. [2018-06-24 20:34:17,836 INFO ]: Start isEmpty. Operand 2310 states and 7140 transitions. [2018-06-24 20:34:17,857 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-24 20:34:17,857 INFO ]: Found error trace [2018-06-24 20:34:17,857 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:34:17,858 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:34:17,858 INFO ]: Analyzing trace with hash -698958861, now seen corresponding path program 1 times [2018-06-24 20:34:17,858 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:34:17,858 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:34:17,858 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:34:17,858 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:34:17,858 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:34:17,902 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:34:18,181 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:34:18,182 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:34:18,182 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-24 20:34:18,182 INFO ]: Interpolant automaton has 6 states [2018-06-24 20:34:18,182 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-24 20:34:18,182 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-24 20:34:18,182 INFO ]: Start difference. First operand 2310 states and 7140 transitions. Second operand 6 states. [2018-06-24 20:34:25,122 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:34:25,122 INFO ]: Finished difference Result 6019 states and 29472 transitions. [2018-06-24 20:34:25,122 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-24 20:34:25,122 INFO ]: Start accepts. Automaton has 6 states. Word has length 10 [2018-06-24 20:34:25,122 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:34:25,941 INFO ]: With dead ends: 6019 [2018-06-24 20:34:25,941 INFO ]: Without dead ends: 6019 [2018-06-24 20:34:25,941 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-06-24 20:34:25,946 INFO ]: Start minimizeSevpa. Operand 6019 states. [2018-06-24 20:34:29,210 INFO ]: Finished minimizeSevpa. Reduced states from 6019 to 3992. [2018-06-24 20:34:29,210 INFO ]: Start removeUnreachable. Operand 3992 states. [2018-06-24 20:34:29,429 INFO ]: Finished removeUnreachable. Reduced from 3992 states to 3992 states and 14590 transitions. [2018-06-24 20:34:29,429 INFO ]: Start accepts. Automaton has 3992 states and 14590 transitions. Word has length 10 [2018-06-24 20:34:29,429 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:34:29,429 INFO ]: Abstraction has 3992 states and 14590 transitions. [2018-06-24 20:34:29,429 INFO ]: Interpolant automaton has 6 states. [2018-06-24 20:34:29,429 INFO ]: Start isEmpty. Operand 3992 states and 14590 transitions. [2018-06-24 20:34:29,485 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-24 20:34:29,485 INFO ]: Found error trace [2018-06-24 20:34:29,485 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:34:29,485 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:34:29,488 INFO ]: Analyzing trace with hash 459148998, now seen corresponding path program 1 times [2018-06-24 20:34:29,488 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:34:29,488 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:34:29,489 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:34:29,489 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:34:29,489 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:34:29,543 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:34:29,750 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:34:29,750 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:34:29,750 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-24 20:34:29,751 INFO ]: Interpolant automaton has 6 states [2018-06-24 20:34:29,751 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-24 20:34:29,751 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-24 20:34:29,751 INFO ]: Start difference. First operand 3992 states and 14590 transitions. Second operand 6 states. [2018-06-24 20:34:35,154 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:34:35,155 INFO ]: Finished difference Result 9262 states and 51822 transitions. [2018-06-24 20:34:35,155 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-24 20:34:35,155 INFO ]: Start accepts. Automaton has 6 states. Word has length 10 [2018-06-24 20:34:35,155 INFO ]: Finished accepts. some prefix is accepted. Received shutdown request... [2018-06-24 20:34:40,432 INFO ]: With dead ends: 9262 [2018-06-24 20:34:40,432 INFO ]: Without dead ends: 8680 [2018-06-24 20:34:40,432 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 [2018-06-24 20:34:40,434 INFO ]: Start minimizeSevpa. Operand 8680 states. [2018-06-24 20:34:40,435 WARN ]: Verification canceled [2018-06-24 20:34:40,436 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:34:40,437 WARN ]: Timeout [2018-06-24 20:34:40,437 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:34:40 BasicIcfg [2018-06-24 20:34:40,437 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:34:40,438 INFO ]: Toolchain (without parser) took 55981.05 ms. Allocated memory was 305.7 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 214.4 MB in the beginning and 1.2 GB in the end (delta: -971.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 3.6 GB. [2018-06-24 20:34:40,440 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:34:40,440 INFO ]: ChcToBoogie took 155.03 ms. Allocated memory is still 305.7 MB. Free memory was 214.4 MB in the beginning and 209.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:34:40,441 INFO ]: Boogie Preprocessor took 110.60 ms. Allocated memory is still 305.7 MB. Free memory was 209.4 MB in the beginning and 206.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. [2018-06-24 20:34:40,441 INFO ]: RCFGBuilder took 2708.59 ms. Allocated memory was 305.7 MB in the beginning and 364.4 MB in the end (delta: 58.7 MB). Free memory was 205.3 MB in the beginning and 333.3 MB in the end (delta: -128.0 MB). Peak memory consumption was 57.3 MB. Max. memory is 3.6 GB. [2018-06-24 20:34:40,441 INFO ]: BlockEncodingV2 took 999.19 ms. Allocated memory is still 364.4 MB. Free memory was 333.3 MB in the beginning and 235.3 MB in the end (delta: 98.0 MB). Peak memory consumption was 98.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:34:40,443 INFO ]: TraceAbstraction took 51998.04 ms. Allocated memory was 364.4 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 235.3 MB in the beginning and 1.2 GB in the end (delta: -950.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-24 20:34:40,446 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 146 locations, 282 edges - StatisticsResult: Encoded RCFG 135 locations, 270 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 155.03 ms. Allocated memory is still 305.7 MB. Free memory was 214.4 MB in the beginning and 209.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 110.60 ms. Allocated memory is still 305.7 MB. Free memory was 209.4 MB in the beginning and 206.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. * RCFGBuilder took 2708.59 ms. Allocated memory was 305.7 MB in the beginning and 364.4 MB in the end (delta: 58.7 MB). Free memory was 205.3 MB in the beginning and 333.3 MB in the end (delta: -128.0 MB). Peak memory consumption was 57.3 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 999.19 ms. Allocated memory is still 364.4 MB. Free memory was 333.3 MB in the beginning and 235.3 MB in the end (delta: 98.0 MB). Peak memory consumption was 98.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 51998.04 ms. Allocated memory was 364.4 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 235.3 MB in the beginning and 1.2 GB in the end (delta: -950.1 MB). Peak memory consumption was 1.4 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 executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 135 locations, 1 error locations. TIMEOUT Result, 51.9s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 41.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6348 SDtfs, 1037 SDslu, 9570 SDs, 0 SdLazy, 17603 SolverSat, 3436 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3992occurred in iteration=8, 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: 6.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 4433 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 1415 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 16/16 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/incremental.36.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-34-40-466.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/incremental.36.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-34-40-466.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/incremental.36.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-34-40-466.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/incremental.36.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-34-40-466.csv Completed graceful shutdown