java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/array-tiling/mbpr2_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:24:57,562 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:24:57,564 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:24:57,576 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:24:57,576 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:24:57,578 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:24:57,579 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:24:57,581 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:24:57,582 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:24:57,583 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:24:57,584 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:24:57,585 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:24:57,586 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:24:57,587 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:24:57,588 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:24:57,589 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:24:57,592 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:24:57,594 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:24:57,606 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:24:57,608 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:24:57,610 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:24:57,613 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:24:57,616 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:24:57,616 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:24:57,617 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:24:57,617 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:24:57,618 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:24:57,619 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:24:57,619 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:24:57,620 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:24:57,621 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:24:57,621 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:24:57,622 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:24:57,623 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:24:57,623 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:24:57,623 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:24:57,624 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:24:57,624 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:24:57,625 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:24:57,626 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:24:57,639 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:24:57,640 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:24:57,641 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:24:57,641 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:24:57,641 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:24:57,642 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:24:57,642 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:24:57,642 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:24:57,642 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:24:57,643 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:24:57,643 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:24:57,643 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:24:57,643 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:24:57,643 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:24:57,643 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:24:57,644 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:24:57,644 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:24:57,644 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:24:57,644 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:24:57,645 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:24:57,645 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:24:57,645 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:24:57,645 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:24:57,646 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:24:57,646 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:24:57,646 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:24:57,646 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:24:57,646 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:24:57,647 INFO L146 ILogger]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2019-05-23 11:24:57,682 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:24:57,697 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:24:57,701 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:24:57,702 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:24:57,703 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:24:57,703 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-tiling/mbpr2_true-unreach-call.i [2019-05-23 11:24:57,768 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a940167c3/b4e325de920e48f6b04d4c186afa8643/FLAG2933159a1 [2019-05-23 11:24:58,202 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:24:58,203 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-tiling/mbpr2_true-unreach-call.i [2019-05-23 11:24:58,210 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a940167c3/b4e325de920e48f6b04d4c186afa8643/FLAG2933159a1 [2019-05-23 11:24:58,599 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a940167c3/b4e325de920e48f6b04d4c186afa8643 [2019-05-23 11:24:58,610 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:24:58,612 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:24:58,613 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:24:58,613 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:24:58,617 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:24:58,618 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,621 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269788cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58, skipping insertion in model container [2019-05-23 11:24:58,621 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,629 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:24:58,651 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:24:58,836 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:24:58,843 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:24:58,884 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:24:58,912 INFO L146 ILogger]: Completed translation [2019-05-23 11:24:58,913 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58 WrapperNode [2019-05-23 11:24:58,913 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:24:58,914 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:24:58,914 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:24:58,914 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:24:58,921 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,929 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,952 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:24:58,952 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:24:58,952 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:24:58,953 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:24:58,960 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,961 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,963 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,964 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:59,062 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:59,067 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:59,069 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:59,071 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:24:59,072 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:24:59,072 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:24:59,072 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:24:59,073 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -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:4096 -smt2 -in -t:12000 [2019-05-23 11:24:59,135 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:24:59,135 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:24:59,135 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:24:59,135 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:24:59,135 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:24:59,136 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:24:59,683 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:24:59,683 INFO L146 ILogger]: Removed 9 assume(true) statements. [2019-05-23 11:24:59,685 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:24:59 BoogieIcfgContainer [2019-05-23 11:24:59,685 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:24:59,686 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:24:59,686 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:24:59,689 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:24:59,690 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:24:58" (1/3) ... [2019-05-23 11:24:59,690 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b4abc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:24:59, skipping insertion in model container [2019-05-23 11:24:59,690 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (2/3) ... [2019-05-23 11:24:59,691 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b4abc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:24:59, skipping insertion in model container [2019-05-23 11:24:59,691 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:24:59" (3/3) ... [2019-05-23 11:24:59,693 INFO L146 ILogger]: Analyzing ICFG mbpr2_true-unreach-call.i [2019-05-23 11:24:59,701 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:24:59,709 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:24:59,726 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:24:59,756 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:24:59,757 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:24:59,757 INFO L146 ILogger]: Hoare is true [2019-05-23 11:24:59,757 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:24:59,757 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:24:59,758 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:24:59,758 INFO L146 ILogger]: Difference is false [2019-05-23 11:24:59,758 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:24:59,758 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:24:59,773 INFO L146 ILogger]: Start isEmpty. Operand 66 states. [2019-05-23 11:24:59,780 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 31 [2019-05-23 11:24:59,780 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:59,781 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:24:59,783 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:59,788 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:59,788 INFO L146 ILogger]: Analyzing trace with hash -1942315672, now seen corresponding path program 1 times [2019-05-23 11:24:59,790 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:59,790 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:59,837 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:59,837 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:59,837 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:59,893 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:00,011 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:00,013 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:25:00,014 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:25:00,018 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:25:00,031 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:25:00,032 INFO L146 ILogger]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:25:00,035 INFO L146 ILogger]: Start difference. First operand 66 states. Second operand 5 states. [2019-05-23 11:25:00,431 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:00,432 INFO L146 ILogger]: Finished difference Result 142 states and 164 transitions. [2019-05-23 11:25:00,432 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:25:00,434 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 30 [2019-05-23 11:25:00,435 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:00,445 INFO L146 ILogger]: With dead ends: 142 [2019-05-23 11:25:00,446 INFO L146 ILogger]: Without dead ends: 85 [2019-05-23 11:25:00,449 INFO L146 ILogger]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:25:00,469 INFO L146 ILogger]: Start minimizeSevpa. Operand 85 states. [2019-05-23 11:25:00,489 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 85 to 61. [2019-05-23 11:25:00,491 INFO L146 ILogger]: Start removeUnreachable. Operand 61 states. [2019-05-23 11:25:00,493 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2019-05-23 11:25:00,494 INFO L146 ILogger]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 30 [2019-05-23 11:25:00,495 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:00,495 INFO L146 ILogger]: Abstraction has 61 states and 66 transitions. [2019-05-23 11:25:00,495 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:25:00,496 INFO L146 ILogger]: Start isEmpty. Operand 61 states and 66 transitions. [2019-05-23 11:25:00,497 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 33 [2019-05-23 11:25:00,497 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:00,497 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:25:00,498 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:00,498 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:00,499 INFO L146 ILogger]: Analyzing trace with hash -1814299835, now seen corresponding path program 1 times [2019-05-23 11:25:00,499 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:00,499 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:00,500 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:00,500 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:00,501 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:00,523 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:00,785 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:00,785 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:25:00,785 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:25:00,787 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:25:00,788 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:25:00,788 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:25:00,789 INFO L146 ILogger]: Start difference. First operand 61 states and 66 transitions. Second operand 4 states. [2019-05-23 11:25:00,964 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:00,965 INFO L146 ILogger]: Finished difference Result 113 states and 125 transitions. [2019-05-23 11:25:00,966 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:25:00,966 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 32 [2019-05-23 11:25:00,967 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:00,969 INFO L146 ILogger]: With dead ends: 113 [2019-05-23 11:25:00,971 INFO L146 ILogger]: Without dead ends: 79 [2019-05-23 11:25:00,972 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:25:00,973 INFO L146 ILogger]: Start minimizeSevpa. Operand 79 states. [2019-05-23 11:25:00,982 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 79 to 63. [2019-05-23 11:25:00,983 INFO L146 ILogger]: Start removeUnreachable. Operand 63 states. [2019-05-23 11:25:00,984 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2019-05-23 11:25:00,984 INFO L146 ILogger]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 32 [2019-05-23 11:25:00,984 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:00,984 INFO L146 ILogger]: Abstraction has 63 states and 68 transitions. [2019-05-23 11:25:00,985 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:25:00,987 INFO L146 ILogger]: Start isEmpty. Operand 63 states and 68 transitions. [2019-05-23 11:25:00,988 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 51 [2019-05-23 11:25:00,988 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:00,989 INFO L146 ILogger]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:00,989 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:00,989 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:00,990 INFO L146 ILogger]: Analyzing trace with hash 2055943988, now seen corresponding path program 1 times [2019-05-23 11:25:00,992 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:00,992 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:00,993 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:00,993 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:00,994 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:01,059 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:01,259 INFO L146 ILogger]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:25:01,260 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:25:01,260 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:25:01,260 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:25:01,261 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:25:01,261 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:25:01,261 INFO L146 ILogger]: Start difference. First operand 63 states and 68 transitions. Second operand 4 states. [2019-05-23 11:25:01,309 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:01,309 INFO L146 ILogger]: Finished difference Result 95 states and 103 transitions. [2019-05-23 11:25:01,310 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:25:01,310 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 50 [2019-05-23 11:25:01,311 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:01,312 INFO L146 ILogger]: With dead ends: 95 [2019-05-23 11:25:01,312 INFO L146 ILogger]: Without dead ends: 62 [2019-05-23 11:25:01,313 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:25:01,313 INFO L146 ILogger]: Start minimizeSevpa. Operand 62 states. [2019-05-23 11:25:01,326 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-05-23 11:25:01,327 INFO L146 ILogger]: Start removeUnreachable. Operand 62 states. [2019-05-23 11:25:01,331 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2019-05-23 11:25:01,331 INFO L146 ILogger]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 50 [2019-05-23 11:25:01,331 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:01,332 INFO L146 ILogger]: Abstraction has 62 states and 66 transitions. [2019-05-23 11:25:01,332 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:25:01,332 INFO L146 ILogger]: Start isEmpty. Operand 62 states and 66 transitions. [2019-05-23 11:25:01,335 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 51 [2019-05-23 11:25:01,335 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:01,335 INFO L146 ILogger]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:01,335 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:01,339 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:01,339 INFO L146 ILogger]: Analyzing trace with hash 1463524052, now seen corresponding path program 1 times [2019-05-23 11:25:01,339 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:01,339 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:01,340 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:01,341 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:01,341 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:01,397 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:02,171 WARN L146 ILogger]: Spent 224.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 19 [2019-05-23 11:25:02,380 WARN L146 ILogger]: Spent 128.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 17 [2019-05-23 11:25:02,473 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:25:02,473 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:02,474 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:02,491 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:02,530 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:02,533 INFO L146 ILogger]: Trace formula consists of 83 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:25:02,541 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:02,836 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:25:02,836 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:02,856 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:02,857 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:02,857 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2019-05-23 11:25:02,902 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:02,903 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-05-23 11:25:02,904 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:02,952 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:02,952 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:02,953 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:14 [2019-05-23 11:25:03,047 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:03,048 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:03,049 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:03,062 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:03,063 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:03,063 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2019-05-23 11:25:03,192 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:03,211 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:03,212 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2019-05-23 11:25:03,215 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:03,245 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:03,246 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:03,247 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:23 [2019-05-23 11:25:03,399 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:03,400 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2019-05-23 11:25:03,401 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:03,405 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:03,405 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:03,405 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2019-05-23 11:25:03,453 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:03,479 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:03,479 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 22 [2019-05-23 11:25:03,479 INFO L146 ILogger]: Interpolant automaton has 22 states [2019-05-23 11:25:03,480 INFO L146 ILogger]: Constructing interpolant automaton starting with 22 interpolants. [2019-05-23 11:25:03,481 INFO L146 ILogger]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2019-05-23 11:25:03,481 INFO L146 ILogger]: Start difference. First operand 62 states and 66 transitions. Second operand 22 states. [2019-05-23 11:25:04,836 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:04,837 INFO L146 ILogger]: Finished difference Result 176 states and 189 transitions. [2019-05-23 11:25:04,839 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-05-23 11:25:04,839 INFO L146 ILogger]: Start accepts. Automaton has 22 states. Word has length 50 [2019-05-23 11:25:04,839 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:04,840 INFO L146 ILogger]: With dead ends: 176 [2019-05-23 11:25:04,841 INFO L146 ILogger]: Without dead ends: 132 [2019-05-23 11:25:04,842 INFO L146 ILogger]: 0 DeclaredPredicates, 83 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2019-05-23 11:25:04,842 INFO L146 ILogger]: Start minimizeSevpa. Operand 132 states. [2019-05-23 11:25:04,848 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 132 to 65. [2019-05-23 11:25:04,849 INFO L146 ILogger]: Start removeUnreachable. Operand 65 states. [2019-05-23 11:25:04,849 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2019-05-23 11:25:04,849 INFO L146 ILogger]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 50 [2019-05-23 11:25:04,850 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:04,850 INFO L146 ILogger]: Abstraction has 65 states and 68 transitions. [2019-05-23 11:25:04,850 INFO L146 ILogger]: Interpolant automaton has 22 states. [2019-05-23 11:25:04,850 INFO L146 ILogger]: Start isEmpty. Operand 65 states and 68 transitions. [2019-05-23 11:25:04,851 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 65 [2019-05-23 11:25:04,851 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:04,852 INFO L146 ILogger]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:04,852 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:04,852 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:04,852 INFO L146 ILogger]: Analyzing trace with hash 1348087011, now seen corresponding path program 1 times [2019-05-23 11:25:04,853 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:04,853 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:04,854 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:04,854 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:04,854 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:04,883 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:05,117 INFO L146 ILogger]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:05,118 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:05,118 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2019-05-23 11:25:05,128 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:05,150 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:05,151 INFO L146 ILogger]: Trace formula consists of 102 conjuncts, 22 conjunts are in the unsatisfiable core [2019-05-23 11:25:05,154 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:05,215 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:25:05,215 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:05,222 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:05,223 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:05,223 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-05-23 11:25:05,263 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:05,265 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-05-23 11:25:05,266 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:05,275 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:05,276 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:05,276 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:13 [2019-05-23 11:25:05,401 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-05-23 11:25:05,402 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:05,403 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:05,403 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:05,403 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-05-23 11:25:05,463 INFO L146 ILogger]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:25:05,483 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:05,483 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2019-05-23 11:25:05,484 INFO L146 ILogger]: Interpolant automaton has 20 states [2019-05-23 11:25:05,484 INFO L146 ILogger]: Constructing interpolant automaton starting with 20 interpolants. [2019-05-23 11:25:05,484 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:25:05,485 INFO L146 ILogger]: Start difference. First operand 65 states and 68 transitions. Second operand 20 states. [2019-05-23 11:25:06,325 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:06,325 INFO L146 ILogger]: Finished difference Result 129 states and 134 transitions. [2019-05-23 11:25:06,326 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-05-23 11:25:06,326 INFO L146 ILogger]: Start accepts. Automaton has 20 states. Word has length 64 [2019-05-23 11:25:06,327 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:06,328 INFO L146 ILogger]: With dead ends: 129 [2019-05-23 11:25:06,328 INFO L146 ILogger]: Without dead ends: 127 [2019-05-23 11:25:06,330 INFO L146 ILogger]: 0 DeclaredPredicates, 98 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=343, Invalid=1139, Unknown=0, NotChecked=0, Total=1482 [2019-05-23 11:25:06,330 INFO L146 ILogger]: Start minimizeSevpa. Operand 127 states. [2019-05-23 11:25:06,337 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 127 to 81. [2019-05-23 11:25:06,338 INFO L146 ILogger]: Start removeUnreachable. Operand 81 states. [2019-05-23 11:25:06,339 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 81 states to 81 states and 85 transitions. [2019-05-23 11:25:06,339 INFO L146 ILogger]: Start accepts. Automaton has 81 states and 85 transitions. Word has length 64 [2019-05-23 11:25:06,339 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:06,339 INFO L146 ILogger]: Abstraction has 81 states and 85 transitions. [2019-05-23 11:25:06,340 INFO L146 ILogger]: Interpolant automaton has 20 states. [2019-05-23 11:25:06,340 INFO L146 ILogger]: Start isEmpty. Operand 81 states and 85 transitions. [2019-05-23 11:25:06,341 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 79 [2019-05-23 11:25:06,341 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:06,341 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:06,342 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:06,342 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:06,342 INFO L146 ILogger]: Analyzing trace with hash 1668053170, now seen corresponding path program 2 times [2019-05-23 11:25:06,342 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:06,342 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:06,343 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:06,343 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:06,344 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:06,364 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:06,900 WARN L146 ILogger]: Spent 308.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 5 [2019-05-23 11:25:07,598 INFO L146 ILogger]: Checked inductivity of 32 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:25:07,598 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:07,598 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2019-05-23 11:25:07,607 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:25:07,656 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:25:07,656 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:07,657 INFO L146 ILogger]: Trace formula consists of 121 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:25:07,660 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:08,332 INFO L146 ILogger]: Checked inductivity of 32 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:25:08,353 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:08,353 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2019-05-23 11:25:08,354 INFO L146 ILogger]: Interpolant automaton has 23 states [2019-05-23 11:25:08,354 INFO L146 ILogger]: Constructing interpolant automaton starting with 23 interpolants. [2019-05-23 11:25:08,354 INFO L146 ILogger]: CoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:25:08,354 INFO L146 ILogger]: Start difference. First operand 81 states and 85 transitions. Second operand 23 states. [2019-05-23 11:25:09,161 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:09,161 INFO L146 ILogger]: Finished difference Result 208 states and 219 transitions. [2019-05-23 11:25:09,161 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-05-23 11:25:09,162 INFO L146 ILogger]: Start accepts. Automaton has 23 states. Word has length 78 [2019-05-23 11:25:09,162 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:09,163 INFO L146 ILogger]: With dead ends: 208 [2019-05-23 11:25:09,163 INFO L146 ILogger]: Without dead ends: 113 [2019-05-23 11:25:09,165 INFO L146 ILogger]: 0 DeclaredPredicates, 106 GetRequests, 68 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=301, Invalid=1031, Unknown=0, NotChecked=0, Total=1332 [2019-05-23 11:25:09,166 INFO L146 ILogger]: Start minimizeSevpa. Operand 113 states. [2019-05-23 11:25:09,172 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 113 to 99. [2019-05-23 11:25:09,172 INFO L146 ILogger]: Start removeUnreachable. Operand 99 states. [2019-05-23 11:25:09,173 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 99 states to 99 states and 103 transitions. [2019-05-23 11:25:09,173 INFO L146 ILogger]: Start accepts. Automaton has 99 states and 103 transitions. Word has length 78 [2019-05-23 11:25:09,174 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:09,174 INFO L146 ILogger]: Abstraction has 99 states and 103 transitions. [2019-05-23 11:25:09,174 INFO L146 ILogger]: Interpolant automaton has 23 states. [2019-05-23 11:25:09,174 INFO L146 ILogger]: Start isEmpty. Operand 99 states and 103 transitions. [2019-05-23 11:25:09,175 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 97 [2019-05-23 11:25:09,176 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:09,176 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:09,176 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:09,176 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:09,177 INFO L146 ILogger]: Analyzing trace with hash -512877885, now seen corresponding path program 3 times [2019-05-23 11:25:09,177 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:09,177 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:09,178 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:09,178 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:09,178 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:09,200 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:09,487 INFO L146 ILogger]: Checked inductivity of 52 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:25:09,488 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:09,488 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2019-05-23 11:25:09,496 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:25:09,532 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:25:09,533 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:09,534 INFO L146 ILogger]: Trace formula consists of 145 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 11:25:09,539 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:09,678 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:25:09,678 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:09,687 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:09,687 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:09,688 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-05-23 11:25:09,725 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:09,726 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:09,727 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:09,740 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:09,741 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:09,741 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:09,787 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:09,788 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2019-05-23 11:25:09,789 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:09,798 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:09,798 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:09,798 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-05-23 11:25:09,875 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:09,881 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:09,883 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:09,884 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:09,884 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 40 [2019-05-23 11:25:09,885 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:09,984 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:09,985 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:25:09,985 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:47, output treesize:31 [2019-05-23 11:25:10,270 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:10,271 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:10,271 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2019-05-23 11:25:10,272 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:10,275 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:10,276 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:10,276 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:7 [2019-05-23 11:25:10,356 INFO L146 ILogger]: Checked inductivity of 52 backedges. 22 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-05-23 11:25:10,375 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:10,375 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 24 [2019-05-23 11:25:10,376 INFO L146 ILogger]: Interpolant automaton has 24 states [2019-05-23 11:25:10,376 INFO L146 ILogger]: Constructing interpolant automaton starting with 24 interpolants. [2019-05-23 11:25:10,377 INFO L146 ILogger]: CoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2019-05-23 11:25:10,377 INFO L146 ILogger]: Start difference. First operand 99 states and 103 transitions. Second operand 24 states. [2019-05-23 11:25:11,531 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:11,532 INFO L146 ILogger]: Finished difference Result 132 states and 137 transitions. [2019-05-23 11:25:11,534 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:25:11,534 INFO L146 ILogger]: Start accepts. Automaton has 24 states. Word has length 96 [2019-05-23 11:25:11,535 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:11,536 INFO L146 ILogger]: With dead ends: 132 [2019-05-23 11:25:11,536 INFO L146 ILogger]: Without dead ends: 110 [2019-05-23 11:25:11,537 INFO L146 ILogger]: 0 DeclaredPredicates, 124 GetRequests, 89 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=241, Invalid=881, Unknown=0, NotChecked=0, Total=1122 [2019-05-23 11:25:11,538 INFO L146 ILogger]: Start minimizeSevpa. Operand 110 states. [2019-05-23 11:25:11,548 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 110 to 99. [2019-05-23 11:25:11,548 INFO L146 ILogger]: Start removeUnreachable. Operand 99 states. [2019-05-23 11:25:11,552 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 99 states to 99 states and 102 transitions. [2019-05-23 11:25:11,553 INFO L146 ILogger]: Start accepts. Automaton has 99 states and 102 transitions. Word has length 96 [2019-05-23 11:25:11,553 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:11,553 INFO L146 ILogger]: Abstraction has 99 states and 102 transitions. [2019-05-23 11:25:11,553 INFO L146 ILogger]: Interpolant automaton has 24 states. [2019-05-23 11:25:11,553 INFO L146 ILogger]: Start isEmpty. Operand 99 states and 102 transitions. [2019-05-23 11:25:11,557 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 99 [2019-05-23 11:25:11,557 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:11,557 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:11,560 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:11,560 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:11,560 INFO L146 ILogger]: Analyzing trace with hash 898436832, now seen corresponding path program 4 times [2019-05-23 11:25:11,560 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:11,560 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:11,561 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:11,561 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:11,561 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:11,601 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:12,652 WARN L146 ILogger]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2019-05-23 11:25:12,830 WARN L146 ILogger]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-05-23 11:25:13,285 INFO L146 ILogger]: Checked inductivity of 54 backedges. 10 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:13,285 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:13,285 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2019-05-23 11:25:13,294 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:25:13,321 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:25:13,321 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:13,322 INFO L146 ILogger]: Trace formula consists of 146 conjuncts, 36 conjunts are in the unsatisfiable core [2019-05-23 11:25:13,327 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:13,561 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:25:13,562 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,570 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,571 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,571 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2019-05-23 11:25:13,644 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,645 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:25:13,646 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,651 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,651 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,652 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:16 [2019-05-23 11:25:13,731 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,732 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2019-05-23 11:25:13,733 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,742 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,743 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,743 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-05-23 11:25:13,823 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,824 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,826 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,831 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,832 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 40 [2019-05-23 11:25:13,832 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,843 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,844 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,844 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:31 [2019-05-23 11:25:13,933 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,934 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,938 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,939 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,939 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2019-05-23 11:25:13,940 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,951 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,951 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,951 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:40 [2019-05-23 11:25:14,070 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:14,071 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:14,072 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:14,073 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:14,074 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2019-05-23 11:25:14,074 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:14,096 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:14,096 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:14,097 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:56, output treesize:34 [2019-05-23 11:25:14,528 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:14,529 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 13 [2019-05-23 11:25:14,529 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:14,534 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:14,534 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:14,534 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:7 [2019-05-23 11:25:14,602 INFO L146 ILogger]: Checked inductivity of 54 backedges. 10 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:14,620 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:14,621 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23] total 47 [2019-05-23 11:25:14,621 INFO L146 ILogger]: Interpolant automaton has 47 states [2019-05-23 11:25:14,621 INFO L146 ILogger]: Constructing interpolant automaton starting with 47 interpolants. [2019-05-23 11:25:14,622 INFO L146 ILogger]: CoverageRelationStatistics Valid=212, Invalid=1950, Unknown=0, NotChecked=0, Total=2162 [2019-05-23 11:25:14,622 INFO L146 ILogger]: Start difference. First operand 99 states and 102 transitions. Second operand 47 states. [2019-05-23 11:25:18,265 WARN L146 ILogger]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 50 [2019-05-23 11:25:19,542 WARN L146 ILogger]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 41 [2019-05-23 11:25:21,476 WARN L146 ILogger]: Spent 189.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2019-05-23 11:25:21,652 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:21,652 INFO L146 ILogger]: Finished difference Result 292 states and 302 transitions. [2019-05-23 11:25:21,652 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2019-05-23 11:25:21,653 INFO L146 ILogger]: Start accepts. Automaton has 47 states. Word has length 98 [2019-05-23 11:25:21,653 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:21,654 INFO L146 ILogger]: With dead ends: 292 [2019-05-23 11:25:21,655 INFO L146 ILogger]: Without dead ends: 270 [2019-05-23 11:25:21,658 INFO L146 ILogger]: 0 DeclaredPredicates, 192 GetRequests, 80 SyntacticMatches, 9 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3141 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=1762, Invalid=9158, Unknown=0, NotChecked=0, Total=10920 [2019-05-23 11:25:21,658 INFO L146 ILogger]: Start minimizeSevpa. Operand 270 states. [2019-05-23 11:25:21,666 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 270 to 152. [2019-05-23 11:25:21,667 INFO L146 ILogger]: Start removeUnreachable. Operand 152 states. [2019-05-23 11:25:21,667 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 152 states to 152 states and 157 transitions. [2019-05-23 11:25:21,668 INFO L146 ILogger]: Start accepts. Automaton has 152 states and 157 transitions. Word has length 98 [2019-05-23 11:25:21,668 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:21,668 INFO L146 ILogger]: Abstraction has 152 states and 157 transitions. [2019-05-23 11:25:21,668 INFO L146 ILogger]: Interpolant automaton has 47 states. [2019-05-23 11:25:21,668 INFO L146 ILogger]: Start isEmpty. Operand 152 states and 157 transitions. [2019-05-23 11:25:21,670 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 113 [2019-05-23 11:25:21,670 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:21,670 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:21,671 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:21,671 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:21,671 INFO L146 ILogger]: Analyzing trace with hash -279340049, now seen corresponding path program 5 times [2019-05-23 11:25:21,671 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:21,671 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:21,672 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:21,672 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:21,672 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:21,688 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:22,371 WARN L146 ILogger]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2019-05-23 11:25:22,679 WARN L146 ILogger]: Spent 140.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2019-05-23 11:25:22,941 INFO L146 ILogger]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:22,941 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:22,942 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2019-05-23 11:25:22,950 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:25:23,027 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2019-05-23 11:25:23,028 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:23,029 INFO L146 ILogger]: Trace formula consists of 167 conjuncts, 40 conjunts are in the unsatisfiable core [2019-05-23 11:25:23,034 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:23,166 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:25:23,166 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,172 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,173 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,173 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-05-23 11:25:23,211 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,213 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:25:23,213 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,220 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,220 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,220 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:13 [2019-05-23 11:25:23,477 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-05-23 11:25:23,477 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,478 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,478 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,478 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-05-23 11:25:23,551 INFO L146 ILogger]: Checked inductivity of 90 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:25:23,570 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:23,570 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 19] total 43 [2019-05-23 11:25:23,571 INFO L146 ILogger]: Interpolant automaton has 43 states [2019-05-23 11:25:23,571 INFO L146 ILogger]: Constructing interpolant automaton starting with 43 interpolants. [2019-05-23 11:25:23,572 INFO L146 ILogger]: CoverageRelationStatistics Valid=154, Invalid=1652, Unknown=0, NotChecked=0, Total=1806 [2019-05-23 11:25:23,572 INFO L146 ILogger]: Start difference. First operand 152 states and 157 transitions. Second operand 43 states. [2019-05-23 11:25:25,297 WARN L146 ILogger]: Spent 221.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 21 [2019-05-23 11:25:28,626 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:28,627 INFO L146 ILogger]: Finished difference Result 248 states and 257 transitions. [2019-05-23 11:25:28,627 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2019-05-23 11:25:28,627 INFO L146 ILogger]: Start accepts. Automaton has 43 states. Word has length 112 [2019-05-23 11:25:28,627 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:28,629 INFO L146 ILogger]: With dead ends: 248 [2019-05-23 11:25:28,629 INFO L146 ILogger]: Without dead ends: 246 [2019-05-23 11:25:28,633 INFO L146 ILogger]: 0 DeclaredPredicates, 206 GetRequests, 98 SyntacticMatches, 5 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2863 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1664, Invalid=9256, Unknown=0, NotChecked=0, Total=10920 [2019-05-23 11:25:28,634 INFO L146 ILogger]: Start minimizeSevpa. Operand 246 states. [2019-05-23 11:25:28,643 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 246 to 188. [2019-05-23 11:25:28,643 INFO L146 ILogger]: Start removeUnreachable. Operand 188 states. [2019-05-23 11:25:28,644 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 188 states to 188 states and 196 transitions. [2019-05-23 11:25:28,644 INFO L146 ILogger]: Start accepts. Automaton has 188 states and 196 transitions. Word has length 112 [2019-05-23 11:25:28,644 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:28,644 INFO L146 ILogger]: Abstraction has 188 states and 196 transitions. [2019-05-23 11:25:28,644 INFO L146 ILogger]: Interpolant automaton has 43 states. [2019-05-23 11:25:28,645 INFO L146 ILogger]: Start isEmpty. Operand 188 states and 196 transitions. [2019-05-23 11:25:28,646 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 117 [2019-05-23 11:25:28,646 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:28,646 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:28,646 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:28,647 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:28,647 INFO L146 ILogger]: Analyzing trace with hash 626215904, now seen corresponding path program 6 times [2019-05-23 11:25:28,647 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:28,647 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:28,648 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:28,648 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:28,648 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:28,661 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:29,379 INFO L146 ILogger]: Checked inductivity of 101 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-05-23 11:25:29,380 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:29,380 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2019-05-23 11:25:29,388 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:25:29,432 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2019-05-23 11:25:29,433 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:29,434 INFO L146 ILogger]: Trace formula consists of 172 conjuncts, 13 conjunts are in the unsatisfiable core [2019-05-23 11:25:29,438 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:30,305 INFO L146 ILogger]: Checked inductivity of 101 backedges. 49 proven. 11 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-05-23 11:25:30,324 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:30,324 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 29 [2019-05-23 11:25:30,325 INFO L146 ILogger]: Interpolant automaton has 29 states [2019-05-23 11:25:30,329 INFO L146 ILogger]: Constructing interpolant automaton starting with 29 interpolants. [2019-05-23 11:25:30,329 INFO L146 ILogger]: CoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2019-05-23 11:25:30,329 INFO L146 ILogger]: Start difference. First operand 188 states and 196 transitions. Second operand 29 states. [2019-05-23 11:25:31,311 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:31,311 INFO L146 ILogger]: Finished difference Result 429 states and 447 transitions. [2019-05-23 11:25:31,318 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-05-23 11:25:31,318 INFO L146 ILogger]: Start accepts. Automaton has 29 states. Word has length 116 [2019-05-23 11:25:31,318 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:31,319 INFO L146 ILogger]: With dead ends: 429 [2019-05-23 11:25:31,319 INFO L146 ILogger]: Without dead ends: 297 [2019-05-23 11:25:31,321 INFO L146 ILogger]: 0 DeclaredPredicates, 147 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=318, Invalid=1488, Unknown=0, NotChecked=0, Total=1806 [2019-05-23 11:25:31,322 INFO L146 ILogger]: Start minimizeSevpa. Operand 297 states. [2019-05-23 11:25:31,331 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 297 to 217. [2019-05-23 11:25:31,331 INFO L146 ILogger]: Start removeUnreachable. Operand 217 states. [2019-05-23 11:25:31,332 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 217 states to 217 states and 226 transitions. [2019-05-23 11:25:31,332 INFO L146 ILogger]: Start accepts. Automaton has 217 states and 226 transitions. Word has length 116 [2019-05-23 11:25:31,332 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:31,333 INFO L146 ILogger]: Abstraction has 217 states and 226 transitions. [2019-05-23 11:25:31,333 INFO L146 ILogger]: Interpolant automaton has 29 states. [2019-05-23 11:25:31,333 INFO L146 ILogger]: Start isEmpty. Operand 217 states and 226 transitions. [2019-05-23 11:25:31,334 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 126 [2019-05-23 11:25:31,334 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:31,334 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2019-05-23 11:25:31,335 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:31,344 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:31,345 INFO L146 ILogger]: Analyzing trace with hash -293428519, now seen corresponding path program 7 times [2019-05-23 11:25:31,345 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:31,345 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:31,347 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:31,347 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:31,347 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:31,362 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:31,912 INFO L146 ILogger]: Checked inductivity of 120 backedges. 41 proven. 47 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-05-23 11:25:31,912 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:31,912 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2019-05-23 11:25:31,923 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:31,962 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:31,963 INFO L146 ILogger]: Trace formula consists of 184 conjuncts, 17 conjunts are in the unsatisfiable core [2019-05-23 11:25:31,966 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:32,445 INFO L146 ILogger]: Checked inductivity of 120 backedges. 58 proven. 30 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-05-23 11:25:32,463 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:32,464 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 35 [2019-05-23 11:25:32,464 INFO L146 ILogger]: Interpolant automaton has 35 states [2019-05-23 11:25:32,465 INFO L146 ILogger]: Constructing interpolant automaton starting with 35 interpolants. [2019-05-23 11:25:32,465 INFO L146 ILogger]: CoverageRelationStatistics Valid=182, Invalid=1008, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 11:25:32,465 INFO L146 ILogger]: Start difference. First operand 217 states and 226 transitions. Second operand 35 states. [2019-05-23 11:25:33,903 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:33,903 INFO L146 ILogger]: Finished difference Result 424 states and 443 transitions. [2019-05-23 11:25:33,904 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-05-23 11:25:33,904 INFO L146 ILogger]: Start accepts. Automaton has 35 states. Word has length 125 [2019-05-23 11:25:33,904 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:33,906 INFO L146 ILogger]: With dead ends: 424 [2019-05-23 11:25:33,906 INFO L146 ILogger]: Without dead ends: 336 [2019-05-23 11:25:33,908 INFO L146 ILogger]: 0 DeclaredPredicates, 171 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=648, Invalid=3134, Unknown=0, NotChecked=0, Total=3782 [2019-05-23 11:25:33,908 INFO L146 ILogger]: Start minimizeSevpa. Operand 336 states. [2019-05-23 11:25:33,916 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 336 to 246. [2019-05-23 11:25:33,916 INFO L146 ILogger]: Start removeUnreachable. Operand 246 states. [2019-05-23 11:25:33,917 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 246 states to 246 states and 257 transitions. [2019-05-23 11:25:33,918 INFO L146 ILogger]: Start accepts. Automaton has 246 states and 257 transitions. Word has length 125 [2019-05-23 11:25:33,918 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:33,918 INFO L146 ILogger]: Abstraction has 246 states and 257 transitions. [2019-05-23 11:25:33,918 INFO L146 ILogger]: Interpolant automaton has 35 states. [2019-05-23 11:25:33,918 INFO L146 ILogger]: Start isEmpty. Operand 246 states and 257 transitions. [2019-05-23 11:25:33,919 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 127 [2019-05-23 11:25:33,919 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:33,920 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:33,920 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:33,920 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:33,920 INFO L146 ILogger]: Analyzing trace with hash -1316576578, now seen corresponding path program 8 times [2019-05-23 11:25:33,920 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:33,921 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:33,921 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:33,921 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:33,922 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:33,933 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:34,266 WARN L146 ILogger]: Spent 242.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 8 [2019-05-23 11:25:34,510 WARN L146 ILogger]: Spent 191.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 5 [2019-05-23 11:25:34,776 WARN L146 ILogger]: Spent 131.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 9 [2019-05-23 11:25:35,407 INFO L146 ILogger]: Checked inductivity of 140 backedges. 78 proven. 51 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-05-23 11:25:35,407 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:35,407 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2019-05-23 11:25:35,417 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:25:35,445 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:25:35,445 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:35,446 INFO L146 ILogger]: Trace formula consists of 186 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:25:35,448 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:36,017 INFO L146 ILogger]: Checked inductivity of 140 backedges. 118 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-05-23 11:25:36,037 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:36,037 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2019-05-23 11:25:36,037 INFO L146 ILogger]: Interpolant automaton has 36 states [2019-05-23 11:25:36,038 INFO L146 ILogger]: Constructing interpolant automaton starting with 36 interpolants. [2019-05-23 11:25:36,038 INFO L146 ILogger]: CoverageRelationStatistics Valid=225, Invalid=1035, Unknown=0, NotChecked=0, Total=1260 [2019-05-23 11:25:36,038 INFO L146 ILogger]: Start difference. First operand 246 states and 257 transitions. Second operand 36 states. [2019-05-23 11:25:37,414 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:37,414 INFO L146 ILogger]: Finished difference Result 339 states and 352 transitions. [2019-05-23 11:25:37,418 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-05-23 11:25:37,418 INFO L146 ILogger]: Start accepts. Automaton has 36 states. Word has length 126 [2019-05-23 11:25:37,418 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:37,420 INFO L146 ILogger]: With dead ends: 339 [2019-05-23 11:25:37,420 INFO L146 ILogger]: Without dead ends: 235 [2019-05-23 11:25:37,421 INFO L146 ILogger]: 0 DeclaredPredicates, 174 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=733, Invalid=3299, Unknown=0, NotChecked=0, Total=4032 [2019-05-23 11:25:37,422 INFO L146 ILogger]: Start minimizeSevpa. Operand 235 states. [2019-05-23 11:25:37,429 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 235 to 235. [2019-05-23 11:25:37,429 INFO L146 ILogger]: Start removeUnreachable. Operand 235 states. [2019-05-23 11:25:37,430 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 235 states to 235 states and 243 transitions. [2019-05-23 11:25:37,430 INFO L146 ILogger]: Start accepts. Automaton has 235 states and 243 transitions. Word has length 126 [2019-05-23 11:25:37,430 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:37,430 INFO L146 ILogger]: Abstraction has 235 states and 243 transitions. [2019-05-23 11:25:37,430 INFO L146 ILogger]: Interpolant automaton has 36 states. [2019-05-23 11:25:37,430 INFO L146 ILogger]: Start isEmpty. Operand 235 states and 243 transitions. [2019-05-23 11:25:37,432 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 135 [2019-05-23 11:25:37,432 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:37,432 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2019-05-23 11:25:37,432 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:37,432 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:37,433 INFO L146 ILogger]: Analyzing trace with hash 1369641984, now seen corresponding path program 9 times [2019-05-23 11:25:37,433 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:37,433 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:37,434 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:37,434 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:37,434 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:37,457 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:38,167 WARN L146 ILogger]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2019-05-23 11:25:38,322 WARN L146 ILogger]: Spent 119.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2019-05-23 11:25:38,514 WARN L146 ILogger]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 45 [2019-05-23 11:25:38,638 WARN L146 ILogger]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2019-05-23 11:25:39,557 WARN L146 ILogger]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-05-23 11:25:39,734 WARN L146 ILogger]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-05-23 11:25:40,040 WARN L146 ILogger]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2019-05-23 11:25:40,242 WARN L146 ILogger]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2019-05-23 11:25:40,919 INFO L146 ILogger]: Checked inductivity of 148 backedges. 13 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:40,920 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:40,920 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:40,929 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:25:41,020 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-05-23 11:25:41,020 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:41,022 INFO L146 ILogger]: Trace formula consists of 196 conjuncts, 67 conjunts are in the unsatisfiable core [2019-05-23 11:25:41,025 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:41,257 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:25:41,258 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:41,268 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:41,269 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:41,269 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2019-05-23 11:25:41,335 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:41,336 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:41,336 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:41,351 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:41,351 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:41,352 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:44, output treesize:28 [2019-05-23 11:25:41,509 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:41,509 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2019-05-23 11:25:41,510 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:41,524 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:41,525 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:41,525 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:37 [2019-05-23 11:25:41,657 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:41,672 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:41,674 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:41,678 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:41,678 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 40 [2019-05-23 11:25:41,679 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:41,695 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:41,695 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:41,696 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:53, output treesize:37 [2019-05-23 11:25:41,939 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:41,940 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:41,941 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:41,942 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:41,942 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 37 [2019-05-23 11:25:41,942 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:41,956 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:41,957 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:41,957 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:61, output treesize:63 [2019-05-23 11:25:42,028 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,029 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,031 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,032 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,033 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,034 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,035 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:42,035 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 52 [2019-05-23 11:25:42,036 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:42,054 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:42,055 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:42,055 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:79, output treesize:63 [2019-05-23 11:25:42,405 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,407 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,409 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,411 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,412 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,413 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,414 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:42,415 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 49 [2019-05-23 11:25:42,416 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:42,432 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:42,433 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:42,433 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:71 [2019-05-23 11:25:42,514 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,516 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,517 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,517 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,518 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,519 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,520 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,521 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,522 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,523 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,524 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:42,525 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 56 [2019-05-23 11:25:42,526 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:42,543 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:42,543 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:42,544 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:76, output treesize:65 [2019-05-23 11:25:42,631 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,632 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,633 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,633 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,641 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,642 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:42,695 INFO L146 ILogger]: treesize reduction 96, result has 41.8 percent of original size [2019-05-23 11:25:42,696 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 93 [2019-05-23 11:25:42,697 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:42,743 INFO L146 ILogger]: treesize reduction 32, result has 70.6 percent of original size [2019-05-23 11:25:42,744 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:42,744 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:81, output treesize:77 [2019-05-23 11:25:43,010 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:43,012 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:43,014 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:43,016 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:43,019 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:43,022 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:43,219 WARN L146 ILogger]: Spent 196.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2019-05-23 11:25:43,220 INFO L146 ILogger]: treesize reduction 166, result has 53.4 percent of original size [2019-05-23 11:25:43,220 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 89 treesize of output 220 [2019-05-23 11:25:43,273 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,770 WARN L146 ILogger]: Spent 496.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2019-05-23 11:25:43,771 INFO L146 ILogger]: treesize reduction 394, result has 32.6 percent of original size [2019-05-23 11:25:43,772 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,772 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:105, output treesize:196 [2019-05-23 11:25:44,229 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,230 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,231 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,233 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,235 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,236 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,237 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,239 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,240 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,242 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,243 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,245 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,248 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,250 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,252 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,298 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 100 [2019-05-23 11:25:44,298 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:44,302 WARN L146 ILogger]: Array PQE input equivalent to false [2019-05-23 11:25:44,303 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:44,313 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,315 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,316 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,318 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,319 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,321 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,322 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,327 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,328 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,330 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,332 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,334 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,336 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,415 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:44,415 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 151 [2019-05-23 11:25:44,417 INFO L146 ILogger]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:44,432 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,434 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,435 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,440 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,442 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,444 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,445 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,447 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,452 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,454 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,457 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,459 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,463 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,464 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,466 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,469 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,576 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:44,577 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 111 treesize of output 199 [2019-05-23 11:25:44,579 INFO L146 ILogger]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:44,584 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,585 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,586 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,587 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,588 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,589 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,591 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,592 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,593 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,594 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,595 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,596 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,597 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,598 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,599 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,628 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 100 [2019-05-23 11:25:44,628 INFO L146 ILogger]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:44,635 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,636 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,637 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,638 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,639 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,640 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,641 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,642 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,643 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,645 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,646 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,647 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,648 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,649 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,650 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:44,690 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 100 [2019-05-23 11:25:44,691 INFO L146 ILogger]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:45,114 WARN L146 ILogger]: Spent 422.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2019-05-23 11:25:45,115 INFO L146 ILogger]: treesize reduction 297, result has 56.2 percent of original size [2019-05-23 11:25:45,115 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2019-05-23 11:25:45,116 INFO L146 ILogger]: Needed 7 recursive calls to eliminate 1 variables, input treesize:611, output treesize:381 [2019-05-23 11:25:45,344 WARN L146 ILogger]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-05-23 11:25:45,597 WARN L146 ILogger]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-05-23 11:25:45,655 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,672 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,672 INFO L146 ILogger]: detected equality via solver [2019-05-23 11:25:45,673 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,674 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,675 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,675 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,677 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,678 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,679 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,680 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,681 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,682 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,684 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,685 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,686 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,690 INFO L146 ILogger]: detected equality via solver [2019-05-23 11:25:45,712 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 106 [2019-05-23 11:25:45,713 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:45,732 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,733 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,740 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,741 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,741 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,742 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,743 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,743 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,745 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,746 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,747 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,748 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,750 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,751 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,752 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,753 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,754 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,755 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,757 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,758 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,759 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,828 INFO L146 ILogger]: Index analysis took 110 ms [2019-05-23 11:25:45,831 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 115 [2019-05-23 11:25:45,832 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:45,842 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,843 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,843 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,844 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,846 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,847 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,851 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,856 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,856 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,857 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,860 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,894 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,914 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,916 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,916 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,917 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:45,951 INFO L146 ILogger]: Index analysis took 110 ms [2019-05-23 11:25:46,078 WARN L146 ILogger]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-05-23 11:25:46,079 INFO L146 ILogger]: treesize reduction 84, result has 57.8 percent of original size [2019-05-23 11:25:46,079 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 114 treesize of output 194 [2019-05-23 11:25:46,081 INFO L146 ILogger]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:46,141 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,159 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,168 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,170 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,171 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,172 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,173 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,173 INFO L146 ILogger]: detected equality via solver [2019-05-23 11:25:46,175 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,176 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,177 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,178 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,179 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,180 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,181 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,182 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,183 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:46,185 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 106 [2019-05-23 11:25:46,186 INFO L146 ILogger]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:46,448 WARN L146 ILogger]: Spent 260.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-05-23 11:25:46,448 INFO L146 ILogger]: treesize reduction 141, result has 73.6 percent of original size [2019-05-23 11:25:46,449 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2019-05-23 11:25:46,449 INFO L146 ILogger]: Needed 5 recursive calls to eliminate 1 variables, input treesize:481, output treesize:393 [2019-05-23 11:25:46,903 WARN L146 ILogger]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-05-23 11:25:47,146 WARN L146 ILogger]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2019-05-23 11:25:47,436 WARN L146 ILogger]: Spent 157.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2019-05-23 11:25:47,452 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,453 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,454 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,456 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,457 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,458 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,460 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,461 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,463 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,467 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,469 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,470 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,472 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,474 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,475 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,477 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,479 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,483 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,575 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:47,576 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 110 treesize of output 174 [2019-05-23 11:25:47,577 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:47,582 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,583 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,584 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,585 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,586 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,587 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,588 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,589 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,591 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,592 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,593 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,594 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,595 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,596 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,597 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,598 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,599 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,601 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,602 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,610 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,611 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:47,625 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 115 [2019-05-23 11:25:47,626 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:47,803 WARN L146 ILogger]: Spent 176.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-05-23 11:25:47,804 INFO L146 ILogger]: treesize reduction 80, result has 73.0 percent of original size [2019-05-23 11:25:47,804 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-05-23 11:25:47,805 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 1 variables, input treesize:224, output treesize:216 [2019-05-23 11:25:48,035 WARN L146 ILogger]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-05-23 11:25:48,057 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,059 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,061 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,064 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,066 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,068 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,070 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,070 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,072 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,074 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,076 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,078 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,080 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,083 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,086 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,088 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,090 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,092 INFO L146 ILogger]: detected equality via solver [2019-05-23 11:25:48,094 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,096 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,098 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,100 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,102 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,104 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,162 INFO L146 ILogger]: Index analysis took 111 ms [2019-05-23 11:25:48,181 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 121 [2019-05-23 11:25:48,182 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:48,191 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,193 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,197 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,200 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,202 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,204 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,208 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,210 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,212 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,214 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,219 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,221 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,223 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,225 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,227 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,231 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,233 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,236 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,240 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,244 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,248 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,251 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:48,337 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:48,338 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 122 treesize of output 268 [2019-05-23 11:25:48,341 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:48,578 WARN L146 ILogger]: Spent 236.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2019-05-23 11:25:48,578 INFO L146 ILogger]: treesize reduction 198, result has 58.1 percent of original size [2019-05-23 11:25:48,579 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-05-23 11:25:48,579 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 2 variables, input treesize:248, output treesize:249 [2019-05-23 11:25:49,206 WARN L146 ILogger]: Spent 294.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2019-05-23 11:25:49,573 WARN L146 ILogger]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-05-23 11:25:50,367 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:50,367 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 54 treesize of output 22 [2019-05-23 11:25:50,368 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:50,371 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:50,371 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:50,371 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:7 [2019-05-23 11:25:50,586 INFO L146 ILogger]: Checked inductivity of 148 backedges. 10 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:50,615 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:50,615 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 45] total 77 [2019-05-23 11:25:50,616 INFO L146 ILogger]: Interpolant automaton has 77 states [2019-05-23 11:25:50,616 INFO L146 ILogger]: Constructing interpolant automaton starting with 77 interpolants. [2019-05-23 11:25:50,618 INFO L146 ILogger]: CoverageRelationStatistics Valid=497, Invalid=5355, Unknown=0, NotChecked=0, Total=5852 [2019-05-23 11:25:50,618 INFO L146 ILogger]: Start difference. First operand 235 states and 243 transitions. Second operand 77 states. [2019-05-23 11:25:52,208 WARN L146 ILogger]: Spent 100.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 30 [2019-05-23 11:25:53,609 WARN L146 ILogger]: Spent 192.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2019-05-23 11:25:53,922 WARN L146 ILogger]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2019-05-23 11:25:54,278 WARN L146 ILogger]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 49 [2019-05-23 11:25:54,505 WARN L146 ILogger]: Spent 102.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 46 [2019-05-23 11:25:55,426 WARN L146 ILogger]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 38 [2019-05-23 11:25:55,746 WARN L146 ILogger]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2019-05-23 11:25:56,011 WARN L146 ILogger]: Spent 127.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 48 [2019-05-23 11:25:56,348 WARN L146 ILogger]: Spent 124.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 52 [2019-05-23 11:25:56,855 WARN L146 ILogger]: Spent 100.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 44 [2019-05-23 11:25:57,215 WARN L146 ILogger]: Spent 108.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 44 [2019-05-23 11:25:58,079 WARN L146 ILogger]: Spent 138.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 40 [2019-05-23 11:25:58,431 WARN L146 ILogger]: Spent 170.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 45 [2019-05-23 11:25:58,723 WARN L146 ILogger]: Spent 160.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 47 [2019-05-23 11:25:59,027 WARN L146 ILogger]: Spent 139.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 49 [2019-05-23 11:25:59,409 WARN L146 ILogger]: Spent 229.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 58 [2019-05-23 11:26:00,029 WARN L146 ILogger]: Spent 306.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 68 [2019-05-23 11:26:00,444 WARN L146 ILogger]: Spent 201.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 56 [2019-05-23 11:26:01,184 WARN L146 ILogger]: Spent 245.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 60 [2019-05-23 11:26:01,594 WARN L146 ILogger]: Spent 246.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 63 [2019-05-23 11:26:02,139 WARN L146 ILogger]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45