java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/hopv/lia/termination/McCarthy9103.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:40:50,679 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:40:50,682 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:40:50,695 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:40:50,695 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:40:50,696 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:40:50,700 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:40:50,702 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:40:50,703 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:40:50,704 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:40:50,706 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:40:50,706 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:40:50,707 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:40:50,708 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:40:50,709 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:40:50,710 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:40:50,714 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:40:50,725 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:40:50,727 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:40:50,728 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:40:50,729 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:40:50,732 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:40:50,732 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:40:50,732 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:40:50,733 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:40:50,741 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:40:50,742 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:40:50,743 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:40:50,744 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:40:50,744 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:40:50,745 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:40:50,745 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:40:50,745 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:40:50,746 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:40:50,751 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:40:50,751 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 11:40:50,779 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:40:50,780 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:40:50,780 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:40:50,780 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:40:50,781 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:40:50,782 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:40:50,782 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:40:50,782 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:40:50,782 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:40:50,783 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:40:50,783 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:40:50,783 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:40:50,783 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:40:50,783 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:40:50,784 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:40:50,785 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:40:50,785 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:40:50,785 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:40:50,785 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:40:50,787 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:40:50,787 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:40:50,852 INFO ]: Repository-Root is: /tmp [2018-06-22 11:40:50,872 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:40:50,880 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:40:50,882 INFO ]: Initializing SmtParser... [2018-06-22 11:40:50,882 INFO ]: SmtParser initialized [2018-06-22 11:40:50,883 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/McCarthy9103.smt2 [2018-06-22 11:40:50,884 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 [2018-06-22 11:40:50,979 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/McCarthy9103.smt2 unknown [2018-06-22 11:40:51,381 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/McCarthy9103.smt2 [2018-06-22 11:40:51,386 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:40:51,392 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:40:51,393 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:40:51,393 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:40:51,393 INFO ]: ChcToBoogie initialized [2018-06-22 11:40:51,396 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:40:51" (1/1) ... [2018-06-22 11:40:51,457 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:51 Unit [2018-06-22 11:40:51,459 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:40:51,460 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:40:51,460 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:40:51,460 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:40:51,483 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:51" (1/1) ... [2018-06-22 11:40:51,483 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:51" (1/1) ... [2018-06-22 11:40:51,495 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:51" (1/1) ... [2018-06-22 11:40:51,495 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:51" (1/1) ... [2018-06-22 11:40:51,511 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:51" (1/1) ... [2018-06-22 11:40:51,514 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:51" (1/1) ... [2018-06-22 11:40:51,525 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:51" (1/1) ... [2018-06-22 11:40:51,528 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:40:51,528 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:40:51,528 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:40:51,528 INFO ]: RCFGBuilder initialized [2018-06-22 11:40:51,529 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:51" (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) [2018-06-22 11:40:51,556 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:40:51,556 INFO ]: Found specification of procedure False [2018-06-22 11:40:51,556 INFO ]: Found implementation of procedure False [2018-06-22 11:40:51,556 INFO ]: Specification and implementation of procedure failDLRunknownCLN3 given in one single declaration [2018-06-22 11:40:51,556 INFO ]: Found specification of procedure failDLRunknownCLN3 [2018-06-22 11:40:51,556 INFO ]: Found implementation of procedure failDLRunknownCLN3 [2018-06-22 11:40:51,556 INFO ]: Specification and implementation of procedure mc91_1030DLRunknownCLN11 given in one single declaration [2018-06-22 11:40:51,557 INFO ]: Found specification of procedure mc91_1030DLRunknownCLN11 [2018-06-22 11:40:51,557 INFO ]: Found implementation of procedure mc91_1030DLRunknownCLN11 [2018-06-22 11:40:51,557 INFO ]: Specification and implementation of procedure mc91_without_checking_1058DLRunknownCLN16 given in one single declaration [2018-06-22 11:40:51,557 INFO ]: Found specification of procedure mc91_without_checking_1058DLRunknownCLN16 [2018-06-22 11:40:51,557 INFO ]: Found implementation of procedure mc91_without_checking_1058DLRunknownCLN16 [2018-06-22 11:40:51,557 INFO ]: Specification and implementation of procedure mc91_1030DLRunknownCLN12 given in one single declaration [2018-06-22 11:40:51,557 INFO ]: Found specification of procedure mc91_1030DLRunknownCLN12 [2018-06-22 11:40:51,557 INFO ]: Found implementation of procedure mc91_1030DLRunknownCLN12 [2018-06-22 11:40:51,557 INFO ]: Specification and implementation of procedure botDLRunknownCLN2 given in one single declaration [2018-06-22 11:40:51,557 INFO ]: Found specification of procedure botDLRunknownCLN2 [2018-06-22 11:40:51,557 INFO ]: Found implementation of procedure botDLRunknownCLN2 [2018-06-22 11:40:51,557 INFO ]: Specification and implementation of procedure mc91_1030DLRunknownCLN8 given in one single declaration [2018-06-22 11:40:51,557 INFO ]: Found specification of procedure mc91_1030DLRunknownCLN8 [2018-06-22 11:40:51,557 INFO ]: Found implementation of procedure mc91_1030DLRunknownCLN8 [2018-06-22 11:40:51,557 INFO ]: Specification and implementation of procedure mc91_1030DLRunknownCLN7 given in one single declaration [2018-06-22 11:40:51,557 INFO ]: Found specification of procedure mc91_1030DLRunknownCLN7 [2018-06-22 11:40:51,557 INFO ]: Found implementation of procedure mc91_1030DLRunknownCLN7 [2018-06-22 11:40:51,557 INFO ]: Specification and implementation of procedure failDLRunknownCLN4 given in one single declaration [2018-06-22 11:40:51,557 INFO ]: Found specification of procedure failDLRunknownCLN4 [2018-06-22 11:40:51,557 INFO ]: Found implementation of procedure failDLRunknownCLN4 [2018-06-22 11:40:51,557 INFO ]: Specification and implementation of procedure mc91_without_checking_1058DLRunknownCLN15 given in one single declaration [2018-06-22 11:40:51,557 INFO ]: Found specification of procedure mc91_without_checking_1058DLRunknownCLN15 [2018-06-22 11:40:51,557 INFO ]: Found implementation of procedure mc91_without_checking_1058DLRunknownCLN15 [2018-06-22 11:40:51,557 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:40:51,557 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:40:51,557 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 [2018-06-22 11:40:52,226 INFO ]: Using library mode [2018-06-22 11:40:52,226 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:40:52 BoogieIcfgContainer [2018-06-22 11:40:52,227 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:40:52,228 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:40:52,228 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:40:52,231 INFO ]: TraceAbstraction initialized [2018-06-22 11:40:52,231 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:40:51" (1/3) ... [2018-06-22 11:40:52,232 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7389d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:40:52, skipping insertion in model container [2018-06-22 11:40:52,232 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:40:51" (2/3) ... [2018-06-22 11:40:52,232 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7389d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:40:52, skipping insertion in model container [2018-06-22 11:40:52,232 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:40:52" (3/3) ... [2018-06-22 11:40:52,234 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:40:52,244 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:40:52,257 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:40:52,305 INFO ]: Using default assertion order modulation [2018-06-22 11:40:52,306 INFO ]: Interprodecural is true [2018-06-22 11:40:52,306 INFO ]: Hoare is false [2018-06-22 11:40:52,306 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:40:52,306 INFO ]: Backedges is TWOTRACK [2018-06-22 11:40:52,306 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:40:52,306 INFO ]: Difference is false [2018-06-22 11:40:52,306 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:40:52,306 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:40:52,335 INFO ]: Start isEmpty. Operand 65 states. [2018-06-22 11:40:52,358 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:40:52,358 INFO ]: Found error trace [2018-06-22 11:40:52,358 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:40:52,359 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:52,362 INFO ]: Analyzing trace with hash 204312560, now seen corresponding path program 1 times [2018-06-22 11:40:52,363 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:52,364 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:52,396 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:52,396 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:52,396 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:52,409 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:52,432 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:40:52,435 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:40:52,435 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:40:52,437 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:40:52,454 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:40:52,455 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:40:52,457 INFO ]: Start difference. First operand 65 states. Second operand 2 states. [2018-06-22 11:40:52,485 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:52,486 INFO ]: Finished difference Result 54 states and 74 transitions. [2018-06-22 11:40:52,486 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:40:52,487 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:40:52,487 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:52,501 INFO ]: With dead ends: 54 [2018-06-22 11:40:52,501 INFO ]: Without dead ends: 49 [2018-06-22 11:40:52,504 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:40:52,520 INFO ]: Start minimizeSevpa. Operand 49 states. [2018-06-22 11:40:52,545 INFO ]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-06-22 11:40:52,547 INFO ]: Start removeUnreachable. Operand 49 states. [2018-06-22 11:40:52,550 INFO ]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2018-06-22 11:40:52,551 INFO ]: Start accepts. Automaton has 49 states and 68 transitions. Word has length 5 [2018-06-22 11:40:52,551 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:52,551 INFO ]: Abstraction has 49 states and 68 transitions. [2018-06-22 11:40:52,551 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:40:52,551 INFO ]: Start isEmpty. Operand 49 states and 68 transitions. [2018-06-22 11:40:52,554 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 11:40:52,554 INFO ]: Found error trace [2018-06-22 11:40:52,554 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:40:52,554 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:52,554 INFO ]: Analyzing trace with hash 1197018769, now seen corresponding path program 1 times [2018-06-22 11:40:52,554 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:52,554 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:52,555 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:52,555 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:52,555 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:52,605 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:52,721 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:40:52,722 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:40:52,722 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:40:52,723 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:40:52,724 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:40:52,724 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:40:52,724 INFO ]: Start difference. First operand 49 states and 68 transitions. Second operand 5 states. [2018-06-22 11:40:53,242 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:53,242 INFO ]: Finished difference Result 55 states and 85 transitions. [2018-06-22 11:40:53,243 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:40:53,243 INFO ]: Start accepts. Automaton has 5 states. Word has length 25 [2018-06-22 11:40:53,243 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:53,246 INFO ]: With dead ends: 55 [2018-06-22 11:40:53,246 INFO ]: Without dead ends: 55 [2018-06-22 11:40:53,246 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:40:53,247 INFO ]: Start minimizeSevpa. Operand 55 states. [2018-06-22 11:40:53,261 INFO ]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-06-22 11:40:53,261 INFO ]: Start removeUnreachable. Operand 55 states. [2018-06-22 11:40:53,264 INFO ]: Finished removeUnreachable. Reduced from 55 states to 55 states and 85 transitions. [2018-06-22 11:40:53,264 INFO ]: Start accepts. Automaton has 55 states and 85 transitions. Word has length 25 [2018-06-22 11:40:53,264 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:53,264 INFO ]: Abstraction has 55 states and 85 transitions. [2018-06-22 11:40:53,264 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:40:53,264 INFO ]: Start isEmpty. Operand 55 states and 85 transitions. [2018-06-22 11:40:53,266 INFO ]: Finished isEmpty. Found accepting run of length 34 [2018-06-22 11:40:53,266 INFO ]: Found error trace [2018-06-22 11:40:53,266 INFO ]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:40:53,266 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:53,267 INFO ]: Analyzing trace with hash 1933477287, now seen corresponding path program 1 times [2018-06-22 11:40:53,267 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:53,267 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:53,270 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:53,270 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:53,270 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:53,296 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:53,437 INFO ]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-06-22 11:40:53,437 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:40:53,437 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 11:40:53,437 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:40:53,438 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:40:53,438 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:40:53,438 INFO ]: Start difference. First operand 55 states and 85 transitions. Second operand 6 states. [2018-06-22 11:40:53,725 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:53,725 INFO ]: Finished difference Result 61 states and 103 transitions. [2018-06-22 11:40:53,726 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:40:53,726 INFO ]: Start accepts. Automaton has 6 states. Word has length 33 [2018-06-22 11:40:53,726 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:53,729 INFO ]: With dead ends: 61 [2018-06-22 11:40:53,729 INFO ]: Without dead ends: 61 [2018-06-22 11:40:53,729 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:40:53,729 INFO ]: Start minimizeSevpa. Operand 61 states. [2018-06-22 11:40:53,742 INFO ]: Finished minimizeSevpa. Reduced states from 61 to 59. [2018-06-22 11:40:53,742 INFO ]: Start removeUnreachable. Operand 59 states. [2018-06-22 11:40:53,744 INFO ]: Finished removeUnreachable. Reduced from 59 states to 59 states and 97 transitions. [2018-06-22 11:40:53,744 INFO ]: Start accepts. Automaton has 59 states and 97 transitions. Word has length 33 [2018-06-22 11:40:53,744 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:53,744 INFO ]: Abstraction has 59 states and 97 transitions. [2018-06-22 11:40:53,744 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:40:53,745 INFO ]: Start isEmpty. Operand 59 states and 97 transitions. [2018-06-22 11:40:53,751 INFO ]: Finished isEmpty. Found accepting run of length 122 [2018-06-22 11:40:53,751 INFO ]: Found error trace [2018-06-22 11:40:53,751 INFO ]: trace histogram [16, 10, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:40:53,751 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:53,751 INFO ]: Analyzing trace with hash -627059273, now seen corresponding path program 1 times [2018-06-22 11:40:53,751 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:53,751 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:53,752 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:53,752 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:53,752 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:53,785 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:53,926 INFO ]: Checked inductivity of 445 backedges. 22 proven. 30 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2018-06-22 11:40:53,926 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:40:53,926 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:40:53,958 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:54,069 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:54,083 INFO ]: Computing forward predicates... [2018-06-22 11:40:54,442 INFO ]: Checked inductivity of 445 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2018-06-22 11:40:54,478 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:40:54,478 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2018-06-22 11:40:54,479 INFO ]: Interpolant automaton has 8 states [2018-06-22 11:40:54,479 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 11:40:54,479 INFO ]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:40:54,480 INFO ]: Start difference. First operand 59 states and 97 transitions. Second operand 8 states. [2018-06-22 11:40:55,020 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:55,020 INFO ]: Finished difference Result 59 states and 95 transitions. [2018-06-22 11:40:55,021 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:40:55,021 INFO ]: Start accepts. Automaton has 8 states. Word has length 121 [2018-06-22 11:40:55,022 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:55,023 INFO ]: With dead ends: 59 [2018-06-22 11:40:55,024 INFO ]: Without dead ends: 59 [2018-06-22 11:40:55,024 INFO ]: 0 DeclaredPredicates, 127 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-06-22 11:40:55,024 INFO ]: Start minimizeSevpa. Operand 59 states. [2018-06-22 11:40:55,034 INFO ]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-06-22 11:40:55,034 INFO ]: Start removeUnreachable. Operand 59 states. [2018-06-22 11:40:55,036 INFO ]: Finished removeUnreachable. Reduced from 59 states to 59 states and 95 transitions. [2018-06-22 11:40:55,036 INFO ]: Start accepts. Automaton has 59 states and 95 transitions. Word has length 121 [2018-06-22 11:40:55,036 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:55,036 INFO ]: Abstraction has 59 states and 95 transitions. [2018-06-22 11:40:55,036 INFO ]: Interpolant automaton has 8 states. [2018-06-22 11:40:55,036 INFO ]: Start isEmpty. Operand 59 states and 95 transitions. [2018-06-22 11:40:55,040 INFO ]: Finished isEmpty. Found accepting run of length 130 [2018-06-22 11:40:55,040 INFO ]: Found error trace [2018-06-22 11:40:55,040 INFO ]: trace histogram [18, 10, 8, 8, 8, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:40:55,040 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:55,040 INFO ]: Analyzing trace with hash 523514957, now seen corresponding path program 2 times [2018-06-22 11:40:55,040 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:55,040 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:55,041 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:55,041 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:55,041 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:55,084 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:55,377 INFO ]: Checked inductivity of 557 backedges. 42 proven. 14 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2018-06-22 11:40:55,377 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:40:55,377 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:40:55,383 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:40:55,494 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:40:55,494 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:55,508 INFO ]: Computing forward predicates... [2018-06-22 11:40:55,732 INFO ]: Checked inductivity of 557 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2018-06-22 11:40:55,752 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:40:55,752 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2018-06-22 11:40:55,753 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:40:55,753 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:40:55,753 INFO ]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:40:55,753 INFO ]: Start difference. First operand 59 states and 95 transitions. Second operand 11 states. [2018-06-22 11:40:56,113 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:56,113 INFO ]: Finished difference Result 57 states and 88 transitions. [2018-06-22 11:40:56,114 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:40:56,114 INFO ]: Start accepts. Automaton has 11 states. Word has length 129 [2018-06-22 11:40:56,114 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:56,116 INFO ]: With dead ends: 57 [2018-06-22 11:40:56,116 INFO ]: Without dead ends: 57 [2018-06-22 11:40:56,116 INFO ]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:40:56,116 INFO ]: Start minimizeSevpa. Operand 57 states. [2018-06-22 11:40:56,128 INFO ]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-06-22 11:40:56,128 INFO ]: Start removeUnreachable. Operand 57 states. [2018-06-22 11:40:56,130 INFO ]: Finished removeUnreachable. Reduced from 57 states to 57 states and 88 transitions. [2018-06-22 11:40:56,130 INFO ]: Start accepts. Automaton has 57 states and 88 transitions. Word has length 129 [2018-06-22 11:40:56,131 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:56,131 INFO ]: Abstraction has 57 states and 88 transitions. [2018-06-22 11:40:56,131 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:40:56,131 INFO ]: Start isEmpty. Operand 57 states and 88 transitions. [2018-06-22 11:40:56,134 INFO ]: Finished isEmpty. Found accepting run of length 138 [2018-06-22 11:40:56,134 INFO ]: Found error trace [2018-06-22 11:40:56,134 INFO ]: trace histogram [20, 10, 10, 10, 10, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:40:56,134 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:56,134 INFO ]: Analyzing trace with hash -645628701, now seen corresponding path program 3 times [2018-06-22 11:40:56,134 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:56,134 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:56,135 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:56,135 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:40:56,135 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:56,173 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:56,537 INFO ]: Checked inductivity of 685 backedges. 50 proven. 10 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2018-06-22 11:40:56,537 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:40:56,538 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:40:56,543 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 11:40:56,615 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-22 11:40:56,615 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:56,622 INFO ]: Computing forward predicates... [2018-06-22 11:40:56,719 INFO ]: Checked inductivity of 685 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2018-06-22 11:40:56,741 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:40:56,742 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-06-22 11:40:56,742 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:40:56,742 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:40:56,742 INFO ]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:40:56,743 INFO ]: Start difference. First operand 57 states and 88 transitions. Second operand 11 states. [2018-06-22 11:40:57,048 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:57,048 INFO ]: Finished difference Result 57 states and 87 transitions. [2018-06-22 11:40:57,049 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 11:40:57,049 INFO ]: Start accepts. Automaton has 11 states. Word has length 137 [2018-06-22 11:40:57,050 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:57,051 INFO ]: With dead ends: 57 [2018-06-22 11:40:57,051 INFO ]: Without dead ends: 57 [2018-06-22 11:40:57,051 INFO ]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:40:57,052 INFO ]: Start minimizeSevpa. Operand 57 states. [2018-06-22 11:40:57,063 INFO ]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-06-22 11:40:57,063 INFO ]: Start removeUnreachable. Operand 57 states. [2018-06-22 11:40:57,064 INFO ]: Finished removeUnreachable. Reduced from 57 states to 57 states and 87 transitions. [2018-06-22 11:40:57,064 INFO ]: Start accepts. Automaton has 57 states and 87 transitions. Word has length 137 [2018-06-22 11:40:57,065 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:57,065 INFO ]: Abstraction has 57 states and 87 transitions. [2018-06-22 11:40:57,065 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:40:57,065 INFO ]: Start isEmpty. Operand 57 states and 87 transitions. [2018-06-22 11:40:57,071 INFO ]: Finished isEmpty. Found accepting run of length 146 [2018-06-22 11:40:57,071 INFO ]: Found error trace [2018-06-22 11:40:57,072 INFO ]: trace histogram [22, 12, 12, 12, 10, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:40:57,072 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:57,072 INFO ]: Analyzing trace with hash -1643676807, now seen corresponding path program 4 times [2018-06-22 11:40:57,072 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:57,072 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:57,073 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:57,073 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:40:57,073 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:57,117 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:57,235 INFO ]: Checked inductivity of 829 backedges. 60 proven. 25 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2018-06-22 11:40:57,235 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:40:57,235 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:40:57,243 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 11:40:57,347 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 11:40:57,347 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:57,355 INFO ]: Computing forward predicates... [2018-06-22 11:40:57,531 INFO ]: Checked inductivity of 829 backedges. 60 proven. 25 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2018-06-22 11:40:57,551 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:40:57,551 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2018-06-22 11:40:57,551 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:40:57,552 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:40:57,552 INFO ]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:40:57,552 INFO ]: Start difference. First operand 57 states and 87 transitions. Second operand 11 states. [2018-06-22 11:40:57,966 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:57,966 INFO ]: Finished difference Result 81 states and 150 transitions. [2018-06-22 11:40:57,966 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 11:40:57,966 INFO ]: Start accepts. Automaton has 11 states. Word has length 145 [2018-06-22 11:40:57,967 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:57,969 INFO ]: With dead ends: 81 [2018-06-22 11:40:57,992 INFO ]: Without dead ends: 81 [2018-06-22 11:40:57,993 INFO ]: 0 DeclaredPredicates, 162 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-06-22 11:40:57,993 INFO ]: Start minimizeSevpa. Operand 81 states. [2018-06-22 11:40:58,030 INFO ]: Finished minimizeSevpa. Reduced states from 81 to 73. [2018-06-22 11:40:58,030 INFO ]: Start removeUnreachable. Operand 73 states. [2018-06-22 11:40:58,032 INFO ]: Finished removeUnreachable. Reduced from 73 states to 73 states and 130 transitions. [2018-06-22 11:40:58,032 INFO ]: Start accepts. Automaton has 73 states and 130 transitions. Word has length 145 [2018-06-22 11:40:58,033 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:58,033 INFO ]: Abstraction has 73 states and 130 transitions. [2018-06-22 11:40:58,033 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:40:58,033 INFO ]: Start isEmpty. Operand 73 states and 130 transitions. [2018-06-22 11:40:58,037 INFO ]: Finished isEmpty. Found accepting run of length 218 [2018-06-22 11:40:58,037 INFO ]: Found error trace [2018-06-22 11:40:58,037 INFO ]: trace histogram [32, 16, 14, 14, 14, 10, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:40:58,037 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:58,038 INFO ]: Analyzing trace with hash 1174921035, now seen corresponding path program 1 times [2018-06-22 11:40:58,038 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:58,038 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:58,042 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:58,042 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:40:58,042 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:58,066 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:58,387 INFO ]: Checked inductivity of 1815 backedges. 48 proven. 119 refuted. 0 times theorem prover too weak. 1648 trivial. 0 not checked. [2018-06-22 11:40:58,387 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:40:58,387 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:40:58,400 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:58,523 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:58,533 INFO ]: Computing forward predicates... [2018-06-22 11:40:58,875 INFO ]: Checked inductivity of 1815 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 1381 trivial. 0 not checked. [2018-06-22 11:40:58,895 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:40:58,895 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2018-06-22 11:40:58,895 INFO ]: Interpolant automaton has 8 states [2018-06-22 11:40:58,895 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 11:40:58,895 INFO ]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:40:58,896 INFO ]: Start difference. First operand 73 states and 130 transitions. Second operand 8 states. [2018-06-22 11:40:58,937 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:40:58,937 INFO ]: Finished difference Result 73 states and 129 transitions. [2018-06-22 11:40:58,938 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:40:58,938 INFO ]: Start accepts. Automaton has 8 states. Word has length 217 [2018-06-22 11:40:58,938 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:40:58,939 INFO ]: With dead ends: 73 [2018-06-22 11:40:58,939 INFO ]: Without dead ends: 68 [2018-06-22 11:40:58,939 INFO ]: 0 DeclaredPredicates, 221 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:40:58,939 INFO ]: Start minimizeSevpa. Operand 68 states. [2018-06-22 11:40:58,952 INFO ]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-06-22 11:40:58,952 INFO ]: Start removeUnreachable. Operand 68 states. [2018-06-22 11:40:58,954 INFO ]: Finished removeUnreachable. Reduced from 68 states to 68 states and 116 transitions. [2018-06-22 11:40:58,954 INFO ]: Start accepts. Automaton has 68 states and 116 transitions. Word has length 217 [2018-06-22 11:40:58,954 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:40:58,954 INFO ]: Abstraction has 68 states and 116 transitions. [2018-06-22 11:40:58,954 INFO ]: Interpolant automaton has 8 states. [2018-06-22 11:40:58,954 INFO ]: Start isEmpty. Operand 68 states and 116 transitions. [2018-06-22 11:40:58,957 INFO ]: Finished isEmpty. Found accepting run of length 190 [2018-06-22 11:40:58,957 INFO ]: Found error trace [2018-06-22 11:40:58,957 INFO ]: trace histogram [29, 15, 15, 15, 13, 8, 7, 7, 7, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:40:58,958 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:40:58,958 INFO ]: Analyzing trace with hash -651963752, now seen corresponding path program 2 times [2018-06-22 11:40:58,958 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:40:58,958 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:40:58,958 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:58,958 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:40:58,958 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:40:58,999 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:59,350 INFO ]: Checked inductivity of 1462 backedges. 26 proven. 30 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2018-06-22 11:40:59,350 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:40:59,350 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:40:59,355 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:40:59,460 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:40:59,460 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:40:59,469 INFO ]: Computing forward predicates... [2018-06-22 11:41:00,380 INFO ]: Checked inductivity of 1462 backedges. 26 proven. 30 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2018-06-22 11:41:00,399 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:41:00,399 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2018-06-22 11:41:00,399 INFO ]: Interpolant automaton has 17 states [2018-06-22 11:41:00,399 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-22 11:41:00,400 INFO ]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2018-06-22 11:41:00,400 INFO ]: Start difference. First operand 68 states and 116 transitions. Second operand 17 states. [2018-06-22 11:41:01,261 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:01,261 INFO ]: Finished difference Result 100 states and 214 transitions. [2018-06-22 11:41:01,261 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-06-22 11:41:01,261 INFO ]: Start accepts. Automaton has 17 states. Word has length 189 [2018-06-22 11:41:01,262 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:01,264 INFO ]: With dead ends: 100 [2018-06-22 11:41:01,264 INFO ]: Without dead ends: 100 [2018-06-22 11:41:01,265 INFO ]: 0 DeclaredPredicates, 215 GetRequests, 187 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2018-06-22 11:41:01,265 INFO ]: Start minimizeSevpa. Operand 100 states. [2018-06-22 11:41:01,293 INFO ]: Finished minimizeSevpa. Reduced states from 100 to 84. [2018-06-22 11:41:01,293 INFO ]: Start removeUnreachable. Operand 84 states. [2018-06-22 11:41:01,301 INFO ]: Finished removeUnreachable. Reduced from 84 states to 84 states and 158 transitions. [2018-06-22 11:41:01,301 INFO ]: Start accepts. Automaton has 84 states and 158 transitions. Word has length 189 [2018-06-22 11:41:01,302 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:01,302 INFO ]: Abstraction has 84 states and 158 transitions. [2018-06-22 11:41:01,302 INFO ]: Interpolant automaton has 17 states. [2018-06-22 11:41:01,302 INFO ]: Start isEmpty. Operand 84 states and 158 transitions. [2018-06-22 11:41:01,312 INFO ]: Finished isEmpty. Found accepting run of length 458 [2018-06-22 11:41:01,314 INFO ]: Found error trace [2018-06-22 11:41:01,314 INFO ]: trace histogram [72, 38, 38, 38, 32, 20, 17, 17, 17, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:41:01,314 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:01,315 INFO ]: Analyzing trace with hash 991632475, now seen corresponding path program 3 times [2018-06-22 11:41:01,315 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:01,315 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:01,315 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:01,315 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:41:01,315 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:01,397 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:02,006 INFO ]: Checked inductivity of 9345 backedges. 176 proven. 322 refuted. 0 times theorem prover too weak. 8847 trivial. 0 not checked. [2018-06-22 11:41:02,006 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:41:02,007 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:41:02,013 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 11:41:02,334 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2018-06-22 11:41:02,334 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:02,356 INFO ]: Computing forward predicates... [2018-06-22 11:41:02,978 INFO ]: Checked inductivity of 9345 backedges. 1515 proven. 257 refuted. 0 times theorem prover too weak. 7573 trivial. 0 not checked. [2018-06-22 11:41:02,998 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:41:02,999 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 35 [2018-06-22 11:41:02,999 INFO ]: Interpolant automaton has 35 states [2018-06-22 11:41:03,000 INFO ]: Constructing interpolant automaton starting with 35 interpolants. [2018-06-22 11:41:03,000 INFO ]: CoverageRelationStatistics Valid=76, Invalid=1114, Unknown=0, NotChecked=0, Total=1190 [2018-06-22 11:41:03,000 INFO ]: Start difference. First operand 84 states and 158 transitions. Second operand 35 states. [2018-06-22 11:41:07,794 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:07,794 INFO ]: Finished difference Result 268 states and 852 transitions. [2018-06-22 11:41:07,795 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-06-22 11:41:07,795 INFO ]: Start accepts. Automaton has 35 states. Word has length 457 [2018-06-22 11:41:07,796 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:07,803 INFO ]: With dead ends: 268 [2018-06-22 11:41:07,803 INFO ]: Without dead ends: 264 [2018-06-22 11:41:07,805 INFO ]: 0 DeclaredPredicates, 534 GetRequests, 445 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1531 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=708, Invalid=7124, Unknown=0, NotChecked=0, Total=7832 [2018-06-22 11:41:07,805 INFO ]: Start minimizeSevpa. Operand 264 states. [2018-06-22 11:41:07,870 INFO ]: Finished minimizeSevpa. Reduced states from 264 to 176. [2018-06-22 11:41:07,870 INFO ]: Start removeUnreachable. Operand 176 states. [2018-06-22 11:41:07,879 INFO ]: Finished removeUnreachable. Reduced from 176 states to 176 states and 486 transitions. [2018-06-22 11:41:07,886 INFO ]: Start accepts. Automaton has 176 states and 486 transitions. Word has length 457 [2018-06-22 11:41:07,887 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:07,887 INFO ]: Abstraction has 176 states and 486 transitions. [2018-06-22 11:41:07,887 INFO ]: Interpolant automaton has 35 states. [2018-06-22 11:41:07,887 INFO ]: Start isEmpty. Operand 176 states and 486 transitions. [2018-06-22 11:41:07,895 INFO ]: Finished isEmpty. Found accepting run of length 654 [2018-06-22 11:41:07,895 INFO ]: Found error trace [2018-06-22 11:41:07,895 INFO ]: trace histogram [103, 49, 49, 49, 45, 29, 27, 27, 27, 14, 14, 14, 14, 14, 14, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:41:07,896 INFO ]: === Iteration 11 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:07,896 INFO ]: Analyzing trace with hash 752411170, now seen corresponding path program 4 times [2018-06-22 11:41:07,896 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:07,896 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:07,896 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:07,896 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:41:07,896 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:08,000 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:08,768 INFO ]: Checked inductivity of 19302 backedges. 565 proven. 162 refuted. 0 times theorem prover too weak. 18575 trivial. 0 not checked. [2018-06-22 11:41:08,768 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:41:08,768 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:41:08,774 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 11:41:09,105 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 11:41:09,105 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:09,123 INFO ]: Computing forward predicates... [2018-06-22 11:41:09,483 INFO ]: Checked inductivity of 19302 backedges. 103 proven. 360 refuted. 0 times theorem prover too weak. 18839 trivial. 0 not checked. [2018-06-22 11:41:09,505 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:41:09,505 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 20 [2018-06-22 11:41:09,506 INFO ]: Interpolant automaton has 20 states [2018-06-22 11:41:09,506 INFO ]: Constructing interpolant automaton starting with 20 interpolants. [2018-06-22 11:41:09,506 INFO ]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2018-06-22 11:41:09,506 INFO ]: Start difference. First operand 176 states and 486 transitions. Second operand 20 states. [2018-06-22 11:41:10,426 WARN ]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-06-22 11:41:10,882 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:10,882 INFO ]: Finished difference Result 233 states and 700 transitions. [2018-06-22 11:41:10,884 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 11:41:10,884 INFO ]: Start accepts. Automaton has 20 states. Word has length 653 [2018-06-22 11:41:10,884 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:10,889 INFO ]: With dead ends: 233 [2018-06-22 11:41:10,889 INFO ]: Without dead ends: 233 [2018-06-22 11:41:10,889 INFO ]: 0 DeclaredPredicates, 684 GetRequests, 655 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2018-06-22 11:41:10,889 INFO ]: Start minimizeSevpa. Operand 233 states. [2018-06-22 11:41:10,936 INFO ]: Finished minimizeSevpa. Reduced states from 233 to 204. [2018-06-22 11:41:10,936 INFO ]: Start removeUnreachable. Operand 204 states. [2018-06-22 11:41:10,940 INFO ]: Finished removeUnreachable. Reduced from 204 states to 204 states and 616 transitions. [2018-06-22 11:41:10,940 INFO ]: Start accepts. Automaton has 204 states and 616 transitions. Word has length 653 [2018-06-22 11:41:10,941 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:10,941 INFO ]: Abstraction has 204 states and 616 transitions. [2018-06-22 11:41:10,941 INFO ]: Interpolant automaton has 20 states. [2018-06-22 11:41:10,941 INFO ]: Start isEmpty. Operand 204 states and 616 transitions. [2018-06-22 11:41:10,949 INFO ]: Finished isEmpty. Found accepting run of length 622 [2018-06-22 11:41:10,949 INFO ]: Found error trace [2018-06-22 11:41:10,949 INFO ]: trace histogram [97, 47, 47, 47, 44, 28, 25, 25, 25, 13, 13, 13, 13, 13, 13, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:41:10,949 INFO ]: === Iteration 12 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:10,949 INFO ]: Analyzing trace with hash 982574614, now seen corresponding path program 5 times [2018-06-22 11:41:10,949 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:10,949 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:10,950 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:10,950 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:41:10,950 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:11,044 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:11,488 INFO ]: Checked inductivity of 17107 backedges. 173 proven. 90 refuted. 0 times theorem prover too weak. 16844 trivial. 0 not checked. [2018-06-22 11:41:11,488 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:41:11,488 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-22 11:41:11,500 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:41:11,693 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2018-06-22 11:41:11,693 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:11,712 INFO ]: Computing forward predicates... [2018-06-22 11:41:13,064 INFO ]: Checked inductivity of 17107 backedges. 6097 proven. 2 refuted. 0 times theorem prover too weak. 11008 trivial. 0 not checked. [2018-06-22 11:41:13,096 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:41:13,097 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-06-22 11:41:13,097 INFO ]: Interpolant automaton has 16 states [2018-06-22 11:41:13,098 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-22 11:41:13,098 INFO ]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2018-06-22 11:41:13,098 INFO ]: Start difference. First operand 204 states and 616 transitions. Second operand 16 states. [2018-06-22 11:41:13,711 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:13,711 INFO ]: Finished difference Result 216 states and 589 transitions. [2018-06-22 11:41:13,712 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-06-22 11:41:13,712 INFO ]: Start accepts. Automaton has 16 states. Word has length 621 [2018-06-22 11:41:13,712 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:13,718 INFO ]: With dead ends: 216 [2018-06-22 11:41:13,718 INFO ]: Without dead ends: 216 [2018-06-22 11:41:13,718 INFO ]: 0 DeclaredPredicates, 638 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2018-06-22 11:41:13,718 INFO ]: Start minimizeSevpa. Operand 216 states. [2018-06-22 11:41:13,744 INFO ]: Finished minimizeSevpa. Reduced states from 216 to 175. [2018-06-22 11:41:13,744 INFO ]: Start removeUnreachable. Operand 175 states. [2018-06-22 11:41:13,747 INFO ]: Finished removeUnreachable. Reduced from 175 states to 175 states and 445 transitions. [2018-06-22 11:41:13,747 INFO ]: Start accepts. Automaton has 175 states and 445 transitions. Word has length 621 [2018-06-22 11:41:13,748 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:13,748 INFO ]: Abstraction has 175 states and 445 transitions. [2018-06-22 11:41:13,748 INFO ]: Interpolant automaton has 16 states. [2018-06-22 11:41:13,748 INFO ]: Start isEmpty. Operand 175 states and 445 transitions. [2018-06-22 11:41:13,752 INFO ]: Finished isEmpty. Found accepting run of length 338 [2018-06-22 11:41:13,752 INFO ]: Found error trace [2018-06-22 11:41:13,752 INFO ]: trace histogram [52, 26, 26, 26, 24, 15, 13, 13, 13, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:41:13,752 INFO ]: === Iteration 13 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:13,752 INFO ]: Analyzing trace with hash -237978317, now seen corresponding path program 6 times [2018-06-22 11:41:13,752 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:13,752 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:13,754 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:13,754 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:41:13,754 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:13,809 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:14,649 INFO ]: Checked inductivity of 4843 backedges. 86 proven. 90 refuted. 0 times theorem prover too weak. 4667 trivial. 0 not checked. [2018-06-22 11:41:14,649 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:41:14,649 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:41:14,663 INFO ]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-06-22 11:41:14,886 INFO ]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2018-06-22 11:41:14,886 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:14,899 INFO ]: Computing forward predicates... [2018-06-22 11:41:15,433 INFO ]: Checked inductivity of 4843 backedges. 205 proven. 120 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2018-06-22 11:41:15,453 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:41:15,453 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20] total 30 [2018-06-22 11:41:15,454 INFO ]: Interpolant automaton has 30 states [2018-06-22 11:41:15,454 INFO ]: Constructing interpolant automaton starting with 30 interpolants. [2018-06-22 11:41:15,454 INFO ]: CoverageRelationStatistics Valid=63, Invalid=807, Unknown=0, NotChecked=0, Total=870 [2018-06-22 11:41:15,455 INFO ]: Start difference. First operand 175 states and 445 transitions. Second operand 30 states. [2018-06-22 11:41:17,419 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:17,419 INFO ]: Finished difference Result 255 states and 738 transitions. [2018-06-22 11:41:17,419 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-06-22 11:41:17,419 INFO ]: Start accepts. Automaton has 30 states. Word has length 337 [2018-06-22 11:41:17,420 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:17,425 INFO ]: With dead ends: 255 [2018-06-22 11:41:17,425 INFO ]: Without dead ends: 255 [2018-06-22 11:41:17,425 INFO ]: 0 DeclaredPredicates, 380 GetRequests, 327 SyntacticMatches, 8 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=204, Invalid=1958, Unknown=0, NotChecked=0, Total=2162 [2018-06-22 11:41:17,426 INFO ]: Start minimizeSevpa. Operand 255 states. [2018-06-22 11:41:17,463 INFO ]: Finished minimizeSevpa. Reduced states from 255 to 219. [2018-06-22 11:41:17,463 INFO ]: Start removeUnreachable. Operand 219 states. [2018-06-22 11:41:17,467 INFO ]: Finished removeUnreachable. Reduced from 219 states to 219 states and 640 transitions. [2018-06-22 11:41:17,467 INFO ]: Start accepts. Automaton has 219 states and 640 transitions. Word has length 337 [2018-06-22 11:41:17,468 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:17,468 INFO ]: Abstraction has 219 states and 640 transitions. [2018-06-22 11:41:17,468 INFO ]: Interpolant automaton has 30 states. [2018-06-22 11:41:17,468 INFO ]: Start isEmpty. Operand 219 states and 640 transitions. [2018-06-22 11:41:17,480 INFO ]: Finished isEmpty. Found accepting run of length 994 [2018-06-22 11:41:17,480 INFO ]: Found error trace [2018-06-22 11:41:17,481 INFO ]: trace histogram [156, 78, 78, 78, 71, 45, 39, 39, 39, 20, 20, 20, 20, 20, 20, 13, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:41:17,481 INFO ]: === Iteration 14 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:17,481 INFO ]: Analyzing trace with hash -605307796, now seen corresponding path program 1 times [2018-06-22 11:41:17,481 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:17,481 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:17,482 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:17,482 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:41:17,482 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:17,512 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:18,220 INFO ]: Checked inductivity of 44504 backedges. 210 proven. 336 refuted. 0 times theorem prover too weak. 43958 trivial. 0 not checked. [2018-06-22 11:41:18,221 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:41:18,221 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-22 11:41:18,235 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:41:18,830 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:18,857 INFO ]: Computing forward predicates... [2018-06-22 11:41:19,384 INFO ]: Checked inductivity of 44504 backedges. 202 proven. 308 refuted. 0 times theorem prover too weak. 43994 trivial. 0 not checked. [2018-06-22 11:41:19,406 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:41:19,406 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 6 [2018-06-22 11:41:19,407 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:41:19,407 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:41:19,407 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:41:19,407 INFO ]: Start difference. First operand 219 states and 640 transitions. Second operand 6 states. [2018-06-22 11:41:19,454 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:19,454 INFO ]: Finished difference Result 221 states and 636 transitions. [2018-06-22 11:41:19,455 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:41:19,455 INFO ]: Start accepts. Automaton has 6 states. Word has length 993 [2018-06-22 11:41:19,456 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:19,459 INFO ]: With dead ends: 221 [2018-06-22 11:41:19,459 INFO ]: Without dead ends: 220 [2018-06-22 11:41:19,459 INFO ]: 0 DeclaredPredicates, 996 GetRequests, 992 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:41:19,460 INFO ]: Start minimizeSevpa. Operand 220 states. [2018-06-22 11:41:19,489 INFO ]: Finished minimizeSevpa. Reduced states from 220 to 218. [2018-06-22 11:41:19,489 INFO ]: Start removeUnreachable. Operand 218 states. [2018-06-22 11:41:19,492 INFO ]: Finished removeUnreachable. Reduced from 218 states to 218 states and 632 transitions. [2018-06-22 11:41:19,493 INFO ]: Start accepts. Automaton has 218 states and 632 transitions. Word has length 993 [2018-06-22 11:41:19,493 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:19,493 INFO ]: Abstraction has 218 states and 632 transitions. [2018-06-22 11:41:19,493 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:41:19,493 INFO ]: Start isEmpty. Operand 218 states and 632 transitions. [2018-06-22 11:41:19,505 INFO ]: Finished isEmpty. Found accepting run of length 950 [2018-06-22 11:41:19,505 INFO ]: Found error trace [2018-06-22 11:41:19,505 INFO ]: trace histogram [149, 75, 75, 75, 68, 43, 37, 37, 37, 19, 19, 19, 19, 19, 19, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:41:19,505 INFO ]: === Iteration 15 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:41:19,506 INFO ]: Analyzing trace with hash -1976162762, now seen corresponding path program 7 times [2018-06-22 11:41:19,506 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:41:19,506 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:41:19,506 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:19,506 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:19,506 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:41:19,620 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:20,488 INFO ]: Checked inductivity of 40617 backedges. 663 proven. 654 refuted. 0 times theorem prover too weak. 39300 trivial. 0 not checked. [2018-06-22 11:41:20,488 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:41:20,488 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:41:20,497 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:41:21,008 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:41:21,035 INFO ]: Computing forward predicates... [2018-06-22 11:41:21,956 INFO ]: Checked inductivity of 40617 backedges. 358 proven. 531 refuted. 0 times theorem prover too weak. 39728 trivial. 0 not checked. [2018-06-22 11:41:21,978 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:41:21,979 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 22] total 36 [2018-06-22 11:41:21,979 INFO ]: Interpolant automaton has 36 states [2018-06-22 11:41:21,979 INFO ]: Constructing interpolant automaton starting with 36 interpolants. [2018-06-22 11:41:21,980 INFO ]: CoverageRelationStatistics Valid=83, Invalid=1177, Unknown=0, NotChecked=0, Total=1260 [2018-06-22 11:41:21,980 INFO ]: Start difference. First operand 218 states and 632 transitions. Second operand 36 states. [2018-06-22 11:41:24,008 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:41:24,008 INFO ]: Finished difference Result 295 states and 964 transitions. [2018-06-22 11:41:24,008 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-06-22 11:41:24,008 INFO ]: Start accepts. Automaton has 36 states. Word has length 949 [2018-06-22 11:41:24,011 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:41:24,011 INFO ]: With dead ends: 295 [2018-06-22 11:41:24,011 INFO ]: Without dead ends: 0 [2018-06-22 11:41:24,012 INFO ]: 0 DeclaredPredicates, 1015 GetRequests, 944 SyntacticMatches, 7 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=316, Invalid=3974, Unknown=0, NotChecked=0, Total=4290 [2018-06-22 11:41:24,012 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:41:24,013 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:41:24,013 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:41:24,013 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:41:24,016 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 949 [2018-06-22 11:41:24,016 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:41:24,016 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:41:24,016 INFO ]: Interpolant automaton has 36 states. [2018-06-22 11:41:24,016 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:41:24,016 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:41:24,187 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:41:24 BoogieIcfgContainer [2018-06-22 11:41:24,187 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:41:24,188 INFO ]: Toolchain (without parser) took 32800.95 ms. Allocated memory was 307.2 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 254.6 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 168.8 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:24,188 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 307.2 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:41:24,189 INFO ]: ChcToBoogie took 66.95 ms. Allocated memory is still 307.2 MB. Free memory was 253.6 MB in the beginning and 251.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:24,191 INFO ]: Boogie Preprocessor took 67.37 ms. Allocated memory is still 307.2 MB. Free memory was 251.6 MB in the beginning and 249.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:24,191 INFO ]: RCFGBuilder took 698.49 ms. Allocated memory is still 307.2 MB. Free memory was 249.7 MB in the beginning and 229.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:24,191 INFO ]: TraceAbstraction took 31958.70 ms. Allocated memory was 307.2 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 229.6 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 143.8 MB. Max. memory is 3.6 GB. [2018-06-22 11:41:24,195 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 307.2 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 66.95 ms. Allocated memory is still 307.2 MB. Free memory was 253.6 MB in the beginning and 251.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 67.37 ms. Allocated memory is still 307.2 MB. Free memory was 251.6 MB in the beginning and 249.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 698.49 ms. Allocated memory is still 307.2 MB. Free memory was 249.7 MB in the beginning and 229.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 31958.70 ms. Allocated memory was 307.2 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 229.6 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 143.8 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 65 locations, 1 error locations. SAFE Result, 31.8s OverallTime, 15 OverallIterations, 156 TraceHistogramMax, 14.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 931 SDtfs, 200 SDslu, 9166 SDs, 0 SdLazy, 10443 SolverSat, 832 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5267 GetRequests, 4917 SyntacticMatches, 23 SemanticMatches, 327 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2701 ImplicationChecksByTransitivity, 11.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 222 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 9959 NumberOfCodeBlocks, 9178 NumberOfCodeBlocksAsserted, 78 NumberOfCheckSat, 9932 ConstructedInterpolants, 0 QuantifiedInterpolants, 7193644 SizeOfPredicates, 78 NumberOfNonLiveVariables, 18664 ConjunctsInSsa, 252 ConjunctsInUnsatCore, 27 InterpolantComputations, 7 PerfectInterpolantSequences, 279529/283044 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/McCarthy9103.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-41-24-212.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/McCarthy9103.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-41-24-212.csv Received shutdown request...