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/pr3_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:26:08,373 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:26:08,375 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:26:08,387 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:26:08,387 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:26:08,388 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:26:08,389 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:26:08,391 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:26:08,395 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:26:08,396 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:26:08,397 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:26:08,397 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:26:08,399 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:26:08,400 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:26:08,401 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:26:08,402 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:26:08,403 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:26:08,405 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:26:08,407 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:26:08,408 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:26:08,409 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:26:08,411 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:26:08,413 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:26:08,413 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:26:08,414 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:26:08,415 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:26:08,422 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:26:08,423 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:26:08,424 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:26:08,425 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:26:08,425 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:26:08,426 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:26:08,427 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:26:08,427 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:26:08,428 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:26:08,428 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:26:08,428 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:26:08,429 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:26:08,430 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:26:08,430 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:26:08,461 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:26:08,462 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:26:08,463 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:26:08,464 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:26:08,464 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:26:08,464 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:26:08,464 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:26:08,465 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:26:08,465 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:26:08,465 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:26:08,465 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:26:08,465 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:26:08,465 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:26:08,467 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:26:08,467 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:26:08,467 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:26:08,467 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:26:08,468 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:26:08,468 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:26:08,468 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:26:08,468 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:26:08,468 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:26:08,469 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:26:08,469 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:26:08,469 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:26:08,470 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:26:08,470 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:26:08,470 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:26:08,470 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 11:26:08,502 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:26:08,516 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:26:08,521 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:26:08,522 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:26:08,522 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:26:08,523 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-tiling/pr3_true-unreach-call.i [2019-05-23 11:26:08,571 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3db7260/f4a7c942a4314da198d77cd09a8b53d9/FLAG240842fdf [2019-05-23 11:26:08,993 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:26:08,994 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-tiling/pr3_true-unreach-call.i [2019-05-23 11:26:09,000 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3db7260/f4a7c942a4314da198d77cd09a8b53d9/FLAG240842fdf [2019-05-23 11:26:09,361 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3db7260/f4a7c942a4314da198d77cd09a8b53d9 [2019-05-23 11:26:09,372 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:26:09,374 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:26:09,375 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:26:09,375 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:26:09,379 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:26:09,380 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:26:09" (1/1) ... [2019-05-23 11:26:09,383 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf951e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09, skipping insertion in model container [2019-05-23 11:26:09,383 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:26:09" (1/1) ... [2019-05-23 11:26:09,391 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:26:09,415 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:26:09,632 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:26:09,639 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:26:09,675 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:26:09,706 INFO L146 ILogger]: Completed translation [2019-05-23 11:26:09,707 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09 WrapperNode [2019-05-23 11:26:09,707 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:26:09,709 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:26:09,709 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:26:09,709 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:26:09,719 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09" (1/1) ... [2019-05-23 11:26:09,735 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09" (1/1) ... [2019-05-23 11:26:09,765 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:26:09,765 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:26:09,765 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:26:09,766 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:26:09,778 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09" (1/1) ... [2019-05-23 11:26:09,778 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09" (1/1) ... [2019-05-23 11:26:09,780 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09" (1/1) ... [2019-05-23 11:26:09,781 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09" (1/1) ... [2019-05-23 11:26:09,787 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09" (1/1) ... [2019-05-23 11:26:09,910 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09" (1/1) ... [2019-05-23 11:26:09,912 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09" (1/1) ... [2019-05-23 11:26:09,914 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:26:09,915 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:26:09,915 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:26:09,915 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:26:09,916 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09" (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 11:26:09,976 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:26:09,977 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:26:09,977 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:26:09,977 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:26:09,977 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:26:09,977 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:26:10,463 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:26:10,464 INFO L146 ILogger]: Removed 8 assume(true) statements. [2019-05-23 11:26:10,466 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:26:10 BoogieIcfgContainer [2019-05-23 11:26:10,466 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:26:10,467 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:26:10,467 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:26:10,470 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:26:10,470 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:26:09" (1/3) ... [2019-05-23 11:26:10,471 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35365071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:26:10, skipping insertion in model container [2019-05-23 11:26:10,472 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:09" (2/3) ... [2019-05-23 11:26:10,472 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35365071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:26:10, skipping insertion in model container [2019-05-23 11:26:10,472 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:26:10" (3/3) ... [2019-05-23 11:26:10,474 INFO L146 ILogger]: Analyzing ICFG pr3_true-unreach-call.i [2019-05-23 11:26:10,484 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:26:10,492 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:26:10,509 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:26:10,541 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:26:10,542 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:26:10,542 INFO L146 ILogger]: Hoare is true [2019-05-23 11:26:10,542 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:26:10,542 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:26:10,543 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:26:10,543 INFO L146 ILogger]: Difference is false [2019-05-23 11:26:10,543 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:26:10,543 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:26:10,560 INFO L146 ILogger]: Start isEmpty. Operand 59 states. [2019-05-23 11:26:10,568 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 30 [2019-05-23 11:26:10,568 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:10,569 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] [2019-05-23 11:26:10,572 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:10,577 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:10,578 INFO L146 ILogger]: Analyzing trace with hash 1560634688, now seen corresponding path program 1 times [2019-05-23 11:26:10,580 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:10,580 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:10,632 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:10,633 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:10,633 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:10,680 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:10,732 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 11:26:10,734 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:10,735 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:26:10,739 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:26:10,751 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:26:10,752 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:26:10,754 INFO L146 ILogger]: Start difference. First operand 59 states. Second operand 2 states. [2019-05-23 11:26:10,774 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:10,774 INFO L146 ILogger]: Finished difference Result 84 states and 97 transitions. [2019-05-23 11:26:10,774 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:26:10,776 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 29 [2019-05-23 11:26:10,777 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:10,787 INFO L146 ILogger]: With dead ends: 84 [2019-05-23 11:26:10,787 INFO L146 ILogger]: Without dead ends: 50 [2019-05-23 11:26:10,791 INFO L146 ILogger]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:26:10,807 INFO L146 ILogger]: Start minimizeSevpa. Operand 50 states. [2019-05-23 11:26:10,821 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-05-23 11:26:10,823 INFO L146 ILogger]: Start removeUnreachable. Operand 50 states. [2019-05-23 11:26:10,824 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2019-05-23 11:26:10,826 INFO L146 ILogger]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 29 [2019-05-23 11:26:10,826 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:10,826 INFO L146 ILogger]: Abstraction has 50 states and 55 transitions. [2019-05-23 11:26:10,827 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:26:10,827 INFO L146 ILogger]: Start isEmpty. Operand 50 states and 55 transitions. [2019-05-23 11:26:10,828 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 30 [2019-05-23 11:26:10,828 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:10,828 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] [2019-05-23 11:26:10,829 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:10,829 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:10,829 INFO L146 ILogger]: Analyzing trace with hash 1431551969, now seen corresponding path program 1 times [2019-05-23 11:26:10,829 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:10,829 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:10,831 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:10,831 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:10,831 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:10,855 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:11,006 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 11:26:11,007 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:11,007 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:26:11,008 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:26:11,009 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:26:11,009 INFO L146 ILogger]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:26:11,009 INFO L146 ILogger]: Start difference. First operand 50 states and 55 transitions. Second operand 5 states. [2019-05-23 11:26:11,333 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:11,333 INFO L146 ILogger]: Finished difference Result 80 states and 87 transitions. [2019-05-23 11:26:11,334 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:26:11,334 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 29 [2019-05-23 11:26:11,334 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:11,336 INFO L146 ILogger]: With dead ends: 80 [2019-05-23 11:26:11,337 INFO L146 ILogger]: Without dead ends: 78 [2019-05-23 11:26:11,338 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 11:26:11,339 INFO L146 ILogger]: Start minimizeSevpa. Operand 78 states. [2019-05-23 11:26:11,345 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 78 to 54. [2019-05-23 11:26:11,346 INFO L146 ILogger]: Start removeUnreachable. Operand 54 states. [2019-05-23 11:26:11,347 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2019-05-23 11:26:11,348 INFO L146 ILogger]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 29 [2019-05-23 11:26:11,348 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:11,348 INFO L146 ILogger]: Abstraction has 54 states and 59 transitions. [2019-05-23 11:26:11,348 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:26:11,349 INFO L146 ILogger]: Start isEmpty. Operand 54 states and 59 transitions. [2019-05-23 11:26:11,350 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 32 [2019-05-23 11:26:11,350 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:11,350 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] [2019-05-23 11:26:11,351 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:11,351 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:11,351 INFO L146 ILogger]: Analyzing trace with hash 2067161534, now seen corresponding path program 1 times [2019-05-23 11:26:11,351 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:11,351 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:11,352 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:11,352 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:11,353 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:11,376 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:11,670 WARN L146 ILogger]: Spent 167.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 14 [2019-05-23 11:26:11,990 WARN L146 ILogger]: Spent 197.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 12 [2019-05-23 11:26:12,000 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 11:26:12,001 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:12,001 INFO L146 ILogger]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-05-23 11:26:12,002 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:26:12,002 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:26:12,002 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:26:12,003 INFO L146 ILogger]: Start difference. First operand 54 states and 59 transitions. Second operand 6 states. [2019-05-23 11:26:12,170 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:12,170 INFO L146 ILogger]: Finished difference Result 89 states and 99 transitions. [2019-05-23 11:26:12,171 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:26:12,171 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 31 [2019-05-23 11:26:12,171 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:12,172 INFO L146 ILogger]: With dead ends: 89 [2019-05-23 11:26:12,172 INFO L146 ILogger]: Without dead ends: 66 [2019-05-23 11:26:12,174 INFO L146 ILogger]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:26:12,174 INFO L146 ILogger]: Start minimizeSevpa. Operand 66 states. [2019-05-23 11:26:12,180 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 66 to 55. [2019-05-23 11:26:12,181 INFO L146 ILogger]: Start removeUnreachable. Operand 55 states. [2019-05-23 11:26:12,182 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2019-05-23 11:26:12,182 INFO L146 ILogger]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 31 [2019-05-23 11:26:12,183 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:12,183 INFO L146 ILogger]: Abstraction has 55 states and 60 transitions. [2019-05-23 11:26:12,183 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:26:12,183 INFO L146 ILogger]: Start isEmpty. Operand 55 states and 60 transitions. [2019-05-23 11:26:12,184 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 42 [2019-05-23 11:26:12,184 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:12,186 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] [2019-05-23 11:26:12,188 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:12,188 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:12,189 INFO L146 ILogger]: Analyzing trace with hash -1318024889, now seen corresponding path program 1 times [2019-05-23 11:26:12,189 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:12,190 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:12,191 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:12,191 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:12,191 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:12,234 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:12,351 INFO L146 ILogger]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:12,351 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:12,352 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:26:12,352 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:26:12,353 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:26:12,353 INFO L146 ILogger]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:26:12,353 INFO L146 ILogger]: Start difference. First operand 55 states and 60 transitions. Second operand 5 states. [2019-05-23 11:26:12,597 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:12,598 INFO L146 ILogger]: Finished difference Result 125 states and 140 transitions. [2019-05-23 11:26:12,598 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:26:12,598 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 41 [2019-05-23 11:26:12,599 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:12,600 INFO L146 ILogger]: With dead ends: 125 [2019-05-23 11:26:12,600 INFO L146 ILogger]: Without dead ends: 89 [2019-05-23 11:26:12,601 INFO L146 ILogger]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:26:12,601 INFO L146 ILogger]: Start minimizeSevpa. Operand 89 states. [2019-05-23 11:26:12,607 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 89 to 66. [2019-05-23 11:26:12,607 INFO L146 ILogger]: Start removeUnreachable. Operand 66 states. [2019-05-23 11:26:12,609 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2019-05-23 11:26:12,609 INFO L146 ILogger]: Start accepts. Automaton has 66 states and 74 transitions. Word has length 41 [2019-05-23 11:26:12,609 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:12,609 INFO L146 ILogger]: Abstraction has 66 states and 74 transitions. [2019-05-23 11:26:12,609 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:26:12,610 INFO L146 ILogger]: Start isEmpty. Operand 66 states and 74 transitions. [2019-05-23 11:26:12,611 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 42 [2019-05-23 11:26:12,611 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:12,611 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] [2019-05-23 11:26:12,612 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:12,612 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:12,612 INFO L146 ILogger]: Analyzing trace with hash -249312857, now seen corresponding path program 1 times [2019-05-23 11:26:12,612 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:12,612 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:12,613 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:12,614 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:12,614 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:12,658 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:13,171 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:13,171 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:13,171 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 11:26:13,191 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:13,230 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:13,232 INFO L146 ILogger]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2019-05-23 11:26:13,240 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:13,320 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 11:26:13,320 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:13,334 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:13,335 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 11:26:13,336 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2019-05-23 11:26:13,381 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 32 [2019-05-23 11:26:13,387 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:13,393 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:13,400 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:13,403 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 28 [2019-05-23 11:26:13,404 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:13,412 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:13,413 INFO L146 ILogger]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:13,427 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:13,427 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:13,427 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 1 variables, input treesize:43, output treesize:31 [2019-05-23 11:26:13,522 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:13,523 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:13,525 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:13,526 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:13,528 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 30 treesize of output 32 [2019-05-23 11:26:13,529 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:13,549 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:13,549 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:13,550 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2019-05-23 11:26:13,656 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:13,657 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 11:26:13,659 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:13,662 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:13,662 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 11:26:13,662 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:3 [2019-05-23 11:26:13,739 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:13,760 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:13,760 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 15 [2019-05-23 11:26:13,760 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:26:13,761 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:26:13,761 INFO L146 ILogger]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:26:13,762 INFO L146 ILogger]: Start difference. First operand 66 states and 74 transitions. Second operand 15 states. [2019-05-23 11:26:14,730 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:14,730 INFO L146 ILogger]: Finished difference Result 203 states and 225 transitions. [2019-05-23 11:26:14,733 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-05-23 11:26:14,734 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 41 [2019-05-23 11:26:14,734 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:14,737 INFO L146 ILogger]: With dead ends: 203 [2019-05-23 11:26:14,737 INFO L146 ILogger]: Without dead ends: 181 [2019-05-23 11:26:14,738 INFO L146 ILogger]: 0 DeclaredPredicates, 63 GetRequests, 36 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2019-05-23 11:26:14,738 INFO L146 ILogger]: Start minimizeSevpa. Operand 181 states. [2019-05-23 11:26:14,755 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 181 to 89. [2019-05-23 11:26:14,755 INFO L146 ILogger]: Start removeUnreachable. Operand 89 states. [2019-05-23 11:26:14,756 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 89 states to 89 states and 102 transitions. [2019-05-23 11:26:14,756 INFO L146 ILogger]: Start accepts. Automaton has 89 states and 102 transitions. Word has length 41 [2019-05-23 11:26:14,757 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:14,758 INFO L146 ILogger]: Abstraction has 89 states and 102 transitions. [2019-05-23 11:26:14,758 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:26:14,759 INFO L146 ILogger]: Start isEmpty. Operand 89 states and 102 transitions. [2019-05-23 11:26:14,760 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 42 [2019-05-23 11:26:14,760 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:14,760 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] [2019-05-23 11:26:14,760 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:14,761 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:14,761 INFO L146 ILogger]: Analyzing trace with hash -1434461689, now seen corresponding path program 1 times [2019-05-23 11:26:14,762 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:14,762 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:14,765 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:14,766 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:14,766 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:14,800 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:14,998 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:14,999 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:14,999 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 11:26:15,009 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:15,038 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:15,039 INFO L146 ILogger]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2019-05-23 11:26:15,042 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:15,104 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 11:26:15,104 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:15,110 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:15,111 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:15,111 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-05-23 11:26:15,131 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 32 [2019-05-23 11:26:15,134 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:15,136 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:15,143 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:15,144 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 28 [2019-05-23 11:26:15,145 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:15,152 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:15,153 INFO L146 ILogger]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:15,163 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:15,164 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:15,164 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 1 variables, input treesize:43, output treesize:31 [2019-05-23 11:26:15,218 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:15,221 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:15,223 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:15,224 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:15,224 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 30 treesize of output 32 [2019-05-23 11:26:15,225 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:15,235 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:15,235 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:15,236 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2019-05-23 11:26:15,287 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:15,288 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 11:26:15,288 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:15,290 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:15,290 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 11:26:15,291 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:3 [2019-05-23 11:26:15,327 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:15,345 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:15,345 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 17 [2019-05-23 11:26:15,346 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 11:26:15,346 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 11:26:15,346 INFO L146 ILogger]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:26:15,347 INFO L146 ILogger]: Start difference. First operand 89 states and 102 transitions. Second operand 17 states. [2019-05-23 11:26:17,285 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:17,285 INFO L146 ILogger]: Finished difference Result 284 states and 318 transitions. [2019-05-23 11:26:17,286 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-05-23 11:26:17,286 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 41 [2019-05-23 11:26:17,286 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:17,288 INFO L146 ILogger]: With dead ends: 284 [2019-05-23 11:26:17,289 INFO L146 ILogger]: Without dead ends: 282 [2019-05-23 11:26:17,291 INFO L146 ILogger]: 0 DeclaredPredicates, 99 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1185 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=803, Invalid=3103, Unknown=0, NotChecked=0, Total=3906 [2019-05-23 11:26:17,291 INFO L146 ILogger]: Start minimizeSevpa. Operand 282 states. [2019-05-23 11:26:17,303 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 282 to 118. [2019-05-23 11:26:17,303 INFO L146 ILogger]: Start removeUnreachable. Operand 118 states. [2019-05-23 11:26:17,304 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 118 states to 118 states and 139 transitions. [2019-05-23 11:26:17,304 INFO L146 ILogger]: Start accepts. Automaton has 118 states and 139 transitions. Word has length 41 [2019-05-23 11:26:17,304 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:17,305 INFO L146 ILogger]: Abstraction has 118 states and 139 transitions. [2019-05-23 11:26:17,305 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 11:26:17,305 INFO L146 ILogger]: Start isEmpty. Operand 118 states and 139 transitions. [2019-05-23 11:26:17,306 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 52 [2019-05-23 11:26:17,306 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:17,307 INFO L146 ILogger]: trace histogram [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, 1, 1, 1, 1, 1] [2019-05-23 11:26:17,307 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:17,307 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:17,307 INFO L146 ILogger]: Analyzing trace with hash 719528528, now seen corresponding path program 2 times [2019-05-23 11:26:17,307 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:17,307 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:17,308 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:17,308 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:17,309 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:17,327 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:17,669 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:17,669 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:17,669 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 11:26:17,678 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:26:17,704 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:26:17,704 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:17,706 INFO L146 ILogger]: Trace formula consists of 81 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:26:17,708 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:17,724 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 11:26:17,724 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:17,735 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:17,736 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:17,736 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-05-23 11:26:17,758 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 32 [2019-05-23 11:26:17,760 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:17,762 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:17,765 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:17,767 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 28 [2019-05-23 11:26:17,767 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:17,776 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:17,777 INFO L146 ILogger]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:17,786 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:17,787 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:17,787 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 1 variables, input treesize:46, output treesize:34 [2019-05-23 11:26:17,835 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:17,836 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:17,841 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:17,842 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:17,843 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 41 treesize of output 43 [2019-05-23 11:26:17,843 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:17,857 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:17,858 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:17,858 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2019-05-23 11:26:18,024 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,025 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,026 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,040 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,041 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,042 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,043 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,043 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 46 treesize of output 47 [2019-05-23 11:26:18,044 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,057 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,057 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,058 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2019-05-23 11:26:18,122 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,146 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,168 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,190 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,207 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,235 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,258 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,269 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,288 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,290 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,291 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,291 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 58 treesize of output 62 [2019-05-23 11:26:18,292 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,313 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,313 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,314 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:60 [2019-05-23 11:26:18,424 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,427 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,429 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,431 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,434 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,435 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,435 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,436 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,437 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,439 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,440 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,441 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,443 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,444 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,445 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,446 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,447 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 10 case distinctions, treesize of input 70 treesize of output 77 [2019-05-23 11:26:18,448 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,466 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,468 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:26:18,468 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:76, output treesize:72 [2019-05-23 11:26:18,708 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,710 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,712 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,714 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,716 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,718 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,721 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,723 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,726 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,728 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,731 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,733 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,734 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,735 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 66 treesize of output 22 [2019-05-23 11:26:18,735 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,743 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,743 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 11:26:18,744 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:3 [2019-05-23 11:26:18,854 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:18,875 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:18,875 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 22 [2019-05-23 11:26:18,875 INFO L146 ILogger]: Interpolant automaton has 22 states [2019-05-23 11:26:18,876 INFO L146 ILogger]: Constructing interpolant automaton starting with 22 interpolants. [2019-05-23 11:26:18,876 INFO L146 ILogger]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2019-05-23 11:26:18,876 INFO L146 ILogger]: Start difference. First operand 118 states and 139 transitions. Second operand 22 states. [2019-05-23 11:26:21,249 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:21,249 INFO L146 ILogger]: Finished difference Result 375 states and 426 transitions. [2019-05-23 11:26:21,250 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-05-23 11:26:21,250 INFO L146 ILogger]: Start accepts. Automaton has 22 states. Word has length 51 [2019-05-23 11:26:21,250 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:21,253 INFO L146 ILogger]: With dead ends: 375 [2019-05-23 11:26:21,253 INFO L146 ILogger]: Without dead ends: 328 [2019-05-23 11:26:21,255 INFO L146 ILogger]: 0 DeclaredPredicates, 94 GetRequests, 41 SyntacticMatches, 6 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=397, Invalid=1955, Unknown=0, NotChecked=0, Total=2352 [2019-05-23 11:26:21,255 INFO L146 ILogger]: Start minimizeSevpa. Operand 328 states. [2019-05-23 11:26:21,266 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 328 to 140. [2019-05-23 11:26:21,266 INFO L146 ILogger]: Start removeUnreachable. Operand 140 states. [2019-05-23 11:26:21,267 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2019-05-23 11:26:21,268 INFO L146 ILogger]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 51 [2019-05-23 11:26:21,268 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:21,268 INFO L146 ILogger]: Abstraction has 140 states and 166 transitions. [2019-05-23 11:26:21,268 INFO L146 ILogger]: Interpolant automaton has 22 states. [2019-05-23 11:26:21,268 INFO L146 ILogger]: Start isEmpty. Operand 140 states and 166 transitions. [2019-05-23 11:26:21,270 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 52 [2019-05-23 11:26:21,270 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:21,270 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:26:21,270 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:21,271 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:21,271 INFO L146 ILogger]: Analyzing trace with hash 36584112, now seen corresponding path program 1 times [2019-05-23 11:26:21,271 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:21,271 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:21,272 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:21,272 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:26:21,272 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:21,278 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:21,300 INFO L146 ILogger]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:21,301 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:21,301 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:26:21,301 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:26:21,301 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:26:21,301 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:21,301 INFO L146 ILogger]: Start difference. First operand 140 states and 166 transitions. Second operand 3 states. [2019-05-23 11:26:21,357 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:21,357 INFO L146 ILogger]: Finished difference Result 230 states and 272 transitions. [2019-05-23 11:26:21,358 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:26:21,358 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 51 [2019-05-23 11:26:21,358 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:21,360 INFO L146 ILogger]: With dead ends: 230 [2019-05-23 11:26:21,360 INFO L146 ILogger]: Without dead ends: 183 [2019-05-23 11:26:21,360 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:21,361 INFO L146 ILogger]: Start minimizeSevpa. Operand 183 states. [2019-05-23 11:26:21,372 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 183 to 160. [2019-05-23 11:26:21,372 INFO L146 ILogger]: Start removeUnreachable. Operand 160 states. [2019-05-23 11:26:21,373 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 160 states to 160 states and 189 transitions. [2019-05-23 11:26:21,373 INFO L146 ILogger]: Start accepts. Automaton has 160 states and 189 transitions. Word has length 51 [2019-05-23 11:26:21,374 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:21,374 INFO L146 ILogger]: Abstraction has 160 states and 189 transitions. [2019-05-23 11:26:21,374 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:26:21,374 INFO L146 ILogger]: Start isEmpty. Operand 160 states and 189 transitions. [2019-05-23 11:26:21,380 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 56 [2019-05-23 11:26:21,380 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:21,381 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] [2019-05-23 11:26:21,381 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:21,381 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:21,381 INFO L146 ILogger]: Analyzing trace with hash -665546186, now seen corresponding path program 1 times [2019-05-23 11:26:21,382 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:21,382 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:21,382 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:21,382 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:21,382 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:21,408 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:21,721 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:21,721 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:21,721 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 11:26:21,730 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:21,760 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:21,761 INFO L146 ILogger]: Trace formula consists of 88 conjuncts, 24 conjunts are in the unsatisfiable core [2019-05-23 11:26:21,764 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:21,930 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 11:26:21,931 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:21,936 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:21,936 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:21,937 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-05-23 11:26:21,958 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:21,959 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 11:26:21,960 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:21,964 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:21,964 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:21,965 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-05-23 11:26:22,194 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:22,194 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 11:26:22,195 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:22,196 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:22,196 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 11:26:22,196 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:3 [2019-05-23 11:26:22,230 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:22,248 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:22,249 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 22 [2019-05-23 11:26:22,249 INFO L146 ILogger]: Interpolant automaton has 22 states [2019-05-23 11:26:22,249 INFO L146 ILogger]: Constructing interpolant automaton starting with 22 interpolants. [2019-05-23 11:26:22,249 INFO L146 ILogger]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2019-05-23 11:26:22,250 INFO L146 ILogger]: Start difference. First operand 160 states and 189 transitions. Second operand 22 states. [2019-05-23 11:26:23,889 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:23,890 INFO L146 ILogger]: Finished difference Result 332 states and 374 transitions. [2019-05-23 11:26:23,890 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-05-23 11:26:23,890 INFO L146 ILogger]: Start accepts. Automaton has 22 states. Word has length 55 [2019-05-23 11:26:23,890 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:23,892 INFO L146 ILogger]: With dead ends: 332 [2019-05-23 11:26:23,892 INFO L146 ILogger]: Without dead ends: 330 [2019-05-23 11:26:23,894 INFO L146 ILogger]: 0 DeclaredPredicates, 108 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=843, Invalid=3063, Unknown=0, NotChecked=0, Total=3906 [2019-05-23 11:26:23,894 INFO L146 ILogger]: Start minimizeSevpa. Operand 330 states. [2019-05-23 11:26:23,904 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 330 to 204. [2019-05-23 11:26:23,905 INFO L146 ILogger]: Start removeUnreachable. Operand 204 states. [2019-05-23 11:26:23,906 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 204 states to 204 states and 239 transitions. [2019-05-23 11:26:23,906 INFO L146 ILogger]: Start accepts. Automaton has 204 states and 239 transitions. Word has length 55 [2019-05-23 11:26:23,906 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:23,906 INFO L146 ILogger]: Abstraction has 204 states and 239 transitions. [2019-05-23 11:26:23,906 INFO L146 ILogger]: Interpolant automaton has 22 states. [2019-05-23 11:26:23,906 INFO L146 ILogger]: Start isEmpty. Operand 204 states and 239 transitions. [2019-05-23 11:26:23,907 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 56 [2019-05-23 11:26:23,908 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:23,908 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] [2019-05-23 11:26:23,908 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:23,908 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:23,908 INFO L146 ILogger]: Analyzing trace with hash -803014282, now seen corresponding path program 1 times [2019-05-23 11:26:23,908 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:23,909 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:23,909 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:23,909 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:23,910 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:23,921 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:24,194 INFO L146 ILogger]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:24,195 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:24,195 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 11:26:24,205 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:24,221 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:24,222 INFO L146 ILogger]: Trace formula consists of 88 conjuncts, 16 conjunts are in the unsatisfiable core [2019-05-23 11:26:24,225 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:24,332 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 11:26:24,333 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:24,339 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:24,339 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 11:26:24,340 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2019-05-23 11:26:24,361 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:24,362 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 11:26:24,362 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:24,374 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:24,375 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 11:26:24,375 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:13 [2019-05-23 11:26:24,469 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 11:26:24,469 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:24,470 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:24,471 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 11:26:24,471 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-05-23 11:26:24,489 INFO L146 ILogger]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:24,509 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:24,509 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 22 [2019-05-23 11:26:24,509 INFO L146 ILogger]: Interpolant automaton has 22 states [2019-05-23 11:26:24,509 INFO L146 ILogger]: Constructing interpolant automaton starting with 22 interpolants. [2019-05-23 11:26:24,510 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2019-05-23 11:26:24,510 INFO L146 ILogger]: Start difference. First operand 204 states and 239 transitions. Second operand 22 states. [2019-05-23 11:26:26,214 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:26,214 INFO L146 ILogger]: Finished difference Result 409 states and 458 transitions. [2019-05-23 11:26:26,215 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-05-23 11:26:26,215 INFO L146 ILogger]: Start accepts. Automaton has 22 states. Word has length 55 [2019-05-23 11:26:26,215 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:26,217 INFO L146 ILogger]: With dead ends: 409 [2019-05-23 11:26:26,217 INFO L146 ILogger]: Without dead ends: 387 [2019-05-23 11:26:26,219 INFO L146 ILogger]: 0 DeclaredPredicates, 93 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=429, Invalid=1733, Unknown=0, NotChecked=0, Total=2162 [2019-05-23 11:26:26,219 INFO L146 ILogger]: Start minimizeSevpa. Operand 387 states. [2019-05-23 11:26:26,229 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 387 to 234. [2019-05-23 11:26:26,229 INFO L146 ILogger]: Start removeUnreachable. Operand 234 states. [2019-05-23 11:26:26,230 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 234 states to 234 states and 272 transitions. [2019-05-23 11:26:26,230 INFO L146 ILogger]: Start accepts. Automaton has 234 states and 272 transitions. Word has length 55 [2019-05-23 11:26:26,230 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:26,230 INFO L146 ILogger]: Abstraction has 234 states and 272 transitions. [2019-05-23 11:26:26,231 INFO L146 ILogger]: Interpolant automaton has 22 states. [2019-05-23 11:26:26,231 INFO L146 ILogger]: Start isEmpty. Operand 234 states and 272 transitions. [2019-05-23 11:26:26,232 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:26:26,232 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:26,232 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-05-23 11:26:26,232 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:26,232 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:26,233 INFO L146 ILogger]: Analyzing trace with hash -1425902855, now seen corresponding path program 1 times [2019-05-23 11:26:26,233 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:26,233 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:26,233 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:26,234 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:26,234 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:26,241 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:26,303 INFO L146 ILogger]: Checked inductivity of 29 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:26:26,303 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:26,303 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:26:26,304 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:26:26,304 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:26:26,304 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:26,304 INFO L146 ILogger]: Start difference. First operand 234 states and 272 transitions. Second operand 3 states. [2019-05-23 11:26:26,500 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:26,501 INFO L146 ILogger]: Finished difference Result 317 states and 363 transitions. [2019-05-23 11:26:26,501 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:26:26,501 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 61 [2019-05-23 11:26:26,502 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:26,503 INFO L146 ILogger]: With dead ends: 317 [2019-05-23 11:26:26,503 INFO L146 ILogger]: Without dead ends: 231 [2019-05-23 11:26:26,504 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:26,504 INFO L146 ILogger]: Start minimizeSevpa. Operand 231 states. [2019-05-23 11:26:26,514 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 231 to 203. [2019-05-23 11:26:26,514 INFO L146 ILogger]: Start removeUnreachable. Operand 203 states. [2019-05-23 11:26:26,515 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 203 states to 203 states and 229 transitions. [2019-05-23 11:26:26,515 INFO L146 ILogger]: Start accepts. Automaton has 203 states and 229 transitions. Word has length 61 [2019-05-23 11:26:26,515 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:26,516 INFO L146 ILogger]: Abstraction has 203 states and 229 transitions. [2019-05-23 11:26:26,516 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:26:26,516 INFO L146 ILogger]: Start isEmpty. Operand 203 states and 229 transitions. [2019-05-23 11:26:26,517 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:26:26,517 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:26,517 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:26,517 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:26,518 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:26,518 INFO L146 ILogger]: Analyzing trace with hash 1326354809, now seen corresponding path program 1 times [2019-05-23 11:26:26,518 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:26,518 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:26,519 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:26,519 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:26,519 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:26,534 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:27,622 INFO L146 ILogger]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:27,622 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:27,622 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 11:26:27,634 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:27,650 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:27,652 INFO L146 ILogger]: Trace formula consists of 93 conjuncts, 23 conjunts are in the unsatisfiable core [2019-05-23 11:26:27,655 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:27,718 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 11:26:27,718 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,732 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,732 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,732 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-05-23 11:26:27,762 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,763 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 11:26:27,764 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,774 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,775 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,775 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2019-05-23 11:26:27,812 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,813 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,814 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,817 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,817 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 41 treesize of output 43 [2019-05-23 11:26:27,817 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,830 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,831 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,831 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2019-05-23 11:26:27,929 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,930 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,931 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,932 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,933 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,934 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,935 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,936 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 42 treesize of output 47 [2019-05-23 11:26:27,937 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,952 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,952 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,953 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:47 [2019-05-23 11:26:28,032 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,033 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,033 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,034 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,035 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,036 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,037 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,039 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,040 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,041 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,042 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:28,042 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 54 treesize of output 62 [2019-05-23 11:26:28,043 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:28,062 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:28,062 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:28,063 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:59 [2019-05-23 11:26:28,118 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,119 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,119 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,120 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,121 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,123 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,124 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,125 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,125 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,126 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,127 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,128 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,129 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,130 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,131 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,132 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:28,133 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 10 case distinctions, treesize of input 66 treesize of output 77 [2019-05-23 11:26:28,134 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:28,173 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:28,174 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:28,174 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:71 [2019-05-23 11:26:28,350 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,351 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,352 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,352 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,353 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,354 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,356 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,357 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,359 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,360 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,362 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,363 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,364 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,365 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,366 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,368 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,369 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,370 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,371 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,372 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,372 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,373 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:28,374 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 15 case distinctions, treesize of input 86 treesize of output 92 [2019-05-23 11:26:28,375 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:28,404 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:28,405 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:26:28,405 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:97, output treesize:103 [2019-05-23 11:26:28,473 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,475 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,476 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,477 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,477 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,478 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,479 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,480 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,481 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,482 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,483 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,485 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,486 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,487 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,488 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,489 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,490 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,492 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,499 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,500 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,501 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,501 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,502 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,503 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,504 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,505 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,506 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,507 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,508 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:28,509 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 111 treesize of output 104 [2019-05-23 11:26:28,510 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:28,536 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:28,537 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:26:28,537 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:122, output treesize:121 [2019-05-23 11:26:28,620 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,621 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,624 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,625 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,626 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,627 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,628 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,629 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,631 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,632 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,633 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,634 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,635 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,636 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,638 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,639 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,640 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,641 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,642 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,644 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,645 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,646 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,647 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,648 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,662 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,663 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,664 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,665 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,666 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,667 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,668 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,669 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,670 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,671 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,672 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,674 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:28,675 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:28,676 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 129 treesize of output 116 [2019-05-23 11:26:28,677 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:28,704 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:28,705 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-05-23 11:26:28,705 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:140, output treesize:136 [2019-05-23 11:26:28,999 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,001 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,003 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,005 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,008 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,010 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,013 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,016 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,018 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,021 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,023 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,025 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,027 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,030 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,033 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,036 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,038 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,040 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,042 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,044 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,046 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,049 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,051 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,053 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,055 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,057 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,059 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,072 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,076 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,078 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,080 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,082 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,084 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:29,086 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:29,087 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 117 treesize of output 25 [2019-05-23 11:26:29,088 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:29,103 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:29,104 INFO L146 ILogger]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:29,104 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 4 variables, input treesize:125, output treesize:3 [2019-05-23 11:26:29,256 INFO L146 ILogger]: Checked inductivity of 33 backedges. 5 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:29,275 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:29,275 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21] total 35 [2019-05-23 11:26:29,276 INFO L146 ILogger]: Interpolant automaton has 35 states [2019-05-23 11:26:29,276 INFO L146 ILogger]: Constructing interpolant automaton starting with 35 interpolants. [2019-05-23 11:26:29,276 INFO L146 ILogger]: CoverageRelationStatistics Valid=143, Invalid=1047, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 11:26:29,277 INFO L146 ILogger]: Start difference. First operand 203 states and 229 transitions. Second operand 35 states. [2019-05-23 11:26:32,866 WARN L146 ILogger]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-05-23 11:26:33,016 WARN L146 ILogger]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2019-05-23 11:26:34,038 WARN L146 ILogger]: Spent 134.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2019-05-23 11:26:34,269 WARN L146 ILogger]: Spent 158.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2019-05-23 11:26:35,417 WARN L146 ILogger]: Spent 109.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2019-05-23 11:26:36,271 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:36,271 INFO L146 ILogger]: Finished difference Result 471 states and 519 transitions. [2019-05-23 11:26:36,272 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-05-23 11:26:36,272 INFO L146 ILogger]: Start accepts. Automaton has 35 states. Word has length 61 [2019-05-23 11:26:36,272 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:36,274 INFO L146 ILogger]: With dead ends: 471 [2019-05-23 11:26:36,274 INFO L146 ILogger]: Without dead ends: 437 [2019-05-23 11:26:36,277 INFO L146 ILogger]: 0 DeclaredPredicates, 125 GetRequests, 44 SyntacticMatches, 7 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1463 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=863, Invalid=4835, Unknown=2, NotChecked=0, Total=5700 [2019-05-23 11:26:36,277 INFO L146 ILogger]: Start minimizeSevpa. Operand 437 states. [2019-05-23 11:26:36,286 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 437 to 218. [2019-05-23 11:26:36,287 INFO L146 ILogger]: Start removeUnreachable. Operand 218 states. [2019-05-23 11:26:36,288 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 218 states to 218 states and 247 transitions. [2019-05-23 11:26:36,288 INFO L146 ILogger]: Start accepts. Automaton has 218 states and 247 transitions. Word has length 61 [2019-05-23 11:26:36,288 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:36,288 INFO L146 ILogger]: Abstraction has 218 states and 247 transitions. [2019-05-23 11:26:36,288 INFO L146 ILogger]: Interpolant automaton has 35 states. [2019-05-23 11:26:36,288 INFO L146 ILogger]: Start isEmpty. Operand 218 states and 247 transitions. [2019-05-23 11:26:36,289 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:26:36,289 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:36,290 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-05-23 11:26:36,290 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:36,290 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:36,290 INFO L146 ILogger]: Analyzing trace with hash -1375870503, now seen corresponding path program 1 times [2019-05-23 11:26:36,290 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:36,290 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:36,291 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:36,291 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:36,291 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:36,298 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:36,352 INFO L146 ILogger]: Checked inductivity of 31 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-05-23 11:26:36,353 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:36,353 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:26:36,353 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:26:36,354 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:26:36,354 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:36,354 INFO L146 ILogger]: Start difference. First operand 218 states and 247 transitions. Second operand 3 states. [2019-05-23 11:26:36,521 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:36,521 INFO L146 ILogger]: Finished difference Result 381 states and 430 transitions. [2019-05-23 11:26:36,522 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:26:36,522 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 61 [2019-05-23 11:26:36,522 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:36,523 INFO L146 ILogger]: With dead ends: 381 [2019-05-23 11:26:36,523 INFO L146 ILogger]: Without dead ends: 297 [2019-05-23 11:26:36,526 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:36,526 INFO L146 ILogger]: Start minimizeSevpa. Operand 297 states. [2019-05-23 11:26:36,534 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 297 to 217. [2019-05-23 11:26:36,535 INFO L146 ILogger]: Start removeUnreachable. Operand 217 states. [2019-05-23 11:26:36,536 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 217 states to 217 states and 244 transitions. [2019-05-23 11:26:36,536 INFO L146 ILogger]: Start accepts. Automaton has 217 states and 244 transitions. Word has length 61 [2019-05-23 11:26:36,536 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:36,536 INFO L146 ILogger]: Abstraction has 217 states and 244 transitions. [2019-05-23 11:26:36,536 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:26:36,536 INFO L146 ILogger]: Start isEmpty. Operand 217 states and 244 transitions. [2019-05-23 11:26:36,537 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:26:36,537 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:36,537 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:36,538 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:36,538 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:36,538 INFO L146 ILogger]: Analyzing trace with hash 1813473945, now seen corresponding path program 1 times [2019-05-23 11:26:36,538 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:36,538 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:36,539 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:36,539 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:36,539 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:36,552 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:37,210 WARN L146 ILogger]: Spent 220.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2019-05-23 11:26:37,522 WARN L146 ILogger]: Spent 138.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 18 [2019-05-23 11:26:37,904 INFO L146 ILogger]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:37,904 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:37,904 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 11:26:37,914 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:37,928 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:37,929 INFO L146 ILogger]: Trace formula consists of 93 conjuncts, 23 conjunts are in the unsatisfiable core [2019-05-23 11:26:37,932 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:37,994 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 11:26:37,994 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,005 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,005 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,006 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-05-23 11:26:38,047 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,048 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 11:26:38,048 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,056 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,057 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,057 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2019-05-23 11:26:38,096 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,097 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,098 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,099 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,099 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 41 treesize of output 43 [2019-05-23 11:26:38,100 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,111 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,111 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,111 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2019-05-23 11:26:38,211 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,212 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,214 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,215 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,215 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,216 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,217 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,217 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 42 treesize of output 47 [2019-05-23 11:26:38,218 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,233 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,233 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,233 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:47 [2019-05-23 11:26:38,276 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,277 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,278 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,279 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,279 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,306 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,311 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,312 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,313 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,314 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,314 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,315 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 54 treesize of output 62 [2019-05-23 11:26:38,315 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,332 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,333 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,333 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:59 [2019-05-23 11:26:38,385 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,386 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,387 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,388 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,388 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,390 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,391 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,392 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,392 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,393 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,394 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,395 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,396 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,397 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,398 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,399 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,400 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 10 case distinctions, treesize of input 66 treesize of output 77 [2019-05-23 11:26:38,401 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,422 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,423 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,423 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:71 [2019-05-23 11:26:38,645 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,666 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,691 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,714 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,735 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,760 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,785 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,804 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,806 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,809 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,811 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,813 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,815 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,817 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,817 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,818 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,819 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,819 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,820 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,821 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,823 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,824 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,824 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 15 case distinctions, treesize of input 96 treesize of output 92 [2019-05-23 11:26:38,825 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,846 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,847 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:26:38,848 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:107, output treesize:103 [2019-05-23 11:26:38,916 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,917 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,918 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,918 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,919 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,920 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,921 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,922 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,923 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,925 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,926 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,927 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,928 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,929 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,930 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,931 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,932 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,933 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,935 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,936 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,937 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,938 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,939 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,940 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,941 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,943 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,944 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,945 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:38,946 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,946 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 111 treesize of output 104 [2019-05-23 11:26:38,947 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:38,970 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:38,971 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:26:38,971 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:122, output treesize:108 [2019-05-23 11:26:39,039 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,040 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,044 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,045 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,046 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,046 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,047 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,048 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,049 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,051 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,052 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,053 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,054 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,055 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,056 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,057 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,058 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,059 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,060 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,061 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,062 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,063 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,065 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,066 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,067 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,068 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,071 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,072 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,073 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,073 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,074 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,075 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,076 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,077 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,078 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,079 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,083 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:39,083 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 113 treesize of output 119 [2019-05-23 11:26:39,084 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:39,109 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:39,110 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-05-23 11:26:39,110 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:124, output treesize:120 [2019-05-23 11:26:39,321 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,324 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,327 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,329 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,331 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,333 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,336 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,338 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,340 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,342 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,344 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,346 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,348 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,350 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,352 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,354 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,356 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,359 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,362 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,365 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,367 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,370 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,372 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,375 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,377 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,380 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,383 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,385 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,387 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,389 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,391 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,394 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,396 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:39,397 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:39,397 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 104 treesize of output 28 [2019-05-23 11:26:39,397 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:39,406 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:39,406 INFO L146 ILogger]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:39,406 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 4 variables, input treesize:112, output treesize:3 [2019-05-23 11:26:39,530 INFO L146 ILogger]: Checked inductivity of 33 backedges. 5 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:39,548 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:39,548 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21] total 34 [2019-05-23 11:26:39,549 INFO L146 ILogger]: Interpolant automaton has 34 states [2019-05-23 11:26:39,549 INFO L146 ILogger]: Constructing interpolant automaton starting with 34 interpolants. [2019-05-23 11:26:39,549 INFO L146 ILogger]: CoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2019-05-23 11:26:39,549 INFO L146 ILogger]: Start difference. First operand 217 states and 244 transitions. Second operand 34 states. [2019-05-23 11:26:43,537 WARN L146 ILogger]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2019-05-23 11:26:45,267 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:45,268 INFO L146 ILogger]: Finished difference Result 423 states and 458 transitions. [2019-05-23 11:26:45,268 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-05-23 11:26:45,268 INFO L146 ILogger]: Start accepts. Automaton has 34 states. Word has length 61 [2019-05-23 11:26:45,269 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:45,270 INFO L146 ILogger]: With dead ends: 423 [2019-05-23 11:26:45,270 INFO L146 ILogger]: Without dead ends: 390 [2019-05-23 11:26:45,273 INFO L146 ILogger]: 0 DeclaredPredicates, 128 GetRequests, 44 SyntacticMatches, 8 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1520 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=894, Invalid=5112, Unknown=0, NotChecked=0, Total=6006 [2019-05-23 11:26:45,274 INFO L146 ILogger]: Start minimizeSevpa. Operand 390 states. [2019-05-23 11:26:45,283 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 390 to 186. [2019-05-23 11:26:45,283 INFO L146 ILogger]: Start removeUnreachable. Operand 186 states. [2019-05-23 11:26:45,284 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 186 states to 186 states and 209 transitions. [2019-05-23 11:26:45,284 INFO L146 ILogger]: Start accepts. Automaton has 186 states and 209 transitions. Word has length 61 [2019-05-23 11:26:45,284 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:45,284 INFO L146 ILogger]: Abstraction has 186 states and 209 transitions. [2019-05-23 11:26:45,284 INFO L146 ILogger]: Interpolant automaton has 34 states. [2019-05-23 11:26:45,284 INFO L146 ILogger]: Start isEmpty. Operand 186 states and 209 transitions. [2019-05-23 11:26:45,285 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 66 [2019-05-23 11:26:45,285 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:45,285 INFO L146 ILogger]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:45,286 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:45,286 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:45,286 INFO L146 ILogger]: Analyzing trace with hash 625774271, now seen corresponding path program 1 times [2019-05-23 11:26:45,286 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:45,286 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:45,287 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:45,287 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:45,287 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:45,293 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:45,351 INFO L146 ILogger]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-05-23 11:26:45,352 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:45,352 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:26:45,352 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:26:45,352 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:26:45,352 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:45,353 INFO L146 ILogger]: Start difference. First operand 186 states and 209 transitions. Second operand 3 states. [2019-05-23 11:26:45,549 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:45,550 INFO L146 ILogger]: Finished difference Result 268 states and 297 transitions. [2019-05-23 11:26:45,550 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:26:45,550 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 65 [2019-05-23 11:26:45,551 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:45,552 INFO L146 ILogger]: With dead ends: 268 [2019-05-23 11:26:45,552 INFO L146 ILogger]: Without dead ends: 214 [2019-05-23 11:26:45,553 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:45,553 INFO L146 ILogger]: Start minimizeSevpa. Operand 214 states. [2019-05-23 11:26:45,564 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 214 to 186. [2019-05-23 11:26:45,565 INFO L146 ILogger]: Start removeUnreachable. Operand 186 states. [2019-05-23 11:26:45,565 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 186 states to 186 states and 207 transitions. [2019-05-23 11:26:45,565 INFO L146 ILogger]: Start accepts. Automaton has 186 states and 207 transitions. Word has length 65 [2019-05-23 11:26:45,566 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:45,566 INFO L146 ILogger]: Abstraction has 186 states and 207 transitions. [2019-05-23 11:26:45,566 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:26:45,566 INFO L146 ILogger]: Start isEmpty. Operand 186 states and 207 transitions. [2019-05-23 11:26:45,567 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 66 [2019-05-23 11:26:45,567 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:45,567 INFO L146 ILogger]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:45,567 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:45,568 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:45,568 INFO L146 ILogger]: Analyzing trace with hash -1721250401, now seen corresponding path program 2 times [2019-05-23 11:26:45,568 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:45,568 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:45,569 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:45,569 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:45,569 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:45,580 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:46,039 INFO L146 ILogger]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:46,040 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:46,040 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 11:26:46,048 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:26:46,067 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:26:46,067 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:46,068 INFO L146 ILogger]: Trace formula consists of 100 conjuncts, 25 conjunts are in the unsatisfiable core [2019-05-23 11:26:46,069 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:46,162 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 11:26:46,162 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,170 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,171 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,171 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2019-05-23 11:26:46,248 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,249 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 11:26:46,249 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,264 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,264 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,265 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:40 [2019-05-23 11:26:46,388 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,389 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,390 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,391 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,391 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 11:26:46,392 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,416 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,423 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 11:26:46,423 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:34 [2019-05-23 11:26:46,428 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,429 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,430 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,430 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,431 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 41 treesize of output 37 [2019-05-23 11:26:46,431 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,446 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,447 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,447 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:49 [2019-05-23 11:26:46,492 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,493 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,495 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,495 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,496 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,497 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,498 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,498 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 68 treesize of output 55 [2019-05-23 11:26:46,499 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,516 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,517 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:26:46,517 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:74, output treesize:76 [2019-05-23 11:26:48,136 WARN L146 ILogger]: Spent 440.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2019-05-23 11:26:48,169 INFO L146 ILogger]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:48,199 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:48,200 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 33 [2019-05-23 11:26:48,200 INFO L146 ILogger]: Interpolant automaton has 33 states [2019-05-23 11:26:48,200 INFO L146 ILogger]: Constructing interpolant automaton starting with 33 interpolants. [2019-05-23 11:26:48,202 INFO L146 ILogger]: CoverageRelationStatistics Valid=147, Invalid=909, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 11:26:48,202 INFO L146 ILogger]: Start difference. First operand 186 states and 207 transitions. Second operand 33 states. [2019-05-23 11:26:51,790 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:51,790 INFO L146 ILogger]: Finished difference Result 458 states and 492 transitions. [2019-05-23 11:26:51,791 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-05-23 11:26:51,791 INFO L146 ILogger]: Start accepts. Automaton has 33 states. Word has length 65 [2019-05-23 11:26:51,791 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:51,793 INFO L146 ILogger]: With dead ends: 458 [2019-05-23 11:26:51,793 INFO L146 ILogger]: Without dead ends: 404 [2019-05-23 11:26:51,796 INFO L146 ILogger]: 0 DeclaredPredicates, 118 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1108 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=866, Invalid=3826, Unknown=0, NotChecked=0, Total=4692 [2019-05-23 11:26:51,796 INFO L146 ILogger]: Start minimizeSevpa. Operand 404 states. [2019-05-23 11:26:51,806 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 404 to 176. [2019-05-23 11:26:51,806 INFO L146 ILogger]: Start removeUnreachable. Operand 176 states. [2019-05-23 11:26:51,807 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 176 states to 176 states and 193 transitions. [2019-05-23 11:26:51,807 INFO L146 ILogger]: Start accepts. Automaton has 176 states and 193 transitions. Word has length 65 [2019-05-23 11:26:51,808 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:51,808 INFO L146 ILogger]: Abstraction has 176 states and 193 transitions. [2019-05-23 11:26:51,808 INFO L146 ILogger]: Interpolant automaton has 33 states. [2019-05-23 11:26:51,808 INFO L146 ILogger]: Start isEmpty. Operand 176 states and 193 transitions. [2019-05-23 11:26:51,809 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 66 [2019-05-23 11:26:51,809 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:51,809 INFO L146 ILogger]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:51,809 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:51,809 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:51,809 INFO L146 ILogger]: Analyzing trace with hash 750978655, now seen corresponding path program 1 times [2019-05-23 11:26:51,809 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:51,810 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:51,810 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:51,810 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:26:51,811 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:51,820 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:52,543 INFO L146 ILogger]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:52,543 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:52,543 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 11:26:52,558 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:52,576 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:52,577 INFO L146 ILogger]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2019-05-23 11:26:52,579 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:52,631 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 11:26:52,632 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:52,639 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:52,639 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:52,639 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-05-23 11:26:52,664 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,665 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 11:26:52,665 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:52,675 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:52,675 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:52,676 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2019-05-23 11:26:52,760 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,761 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,762 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,763 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:52,763 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 11:26:52,764 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:52,790 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:52,790 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 11:26:52,791 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:44, output treesize:28 [2019-05-23 11:26:52,801 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,802 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,803 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,804 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:52,805 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 41 treesize of output 37 [2019-05-23 11:26:52,805 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:52,815 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:52,815 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:52,815 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:43 [2019-05-23 11:26:52,857 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,859 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,860 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,861 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,862 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,863 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:52,864 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:52,864 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 53 treesize of output 52 [2019-05-23 11:26:52,865 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:52,877 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:52,878 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:26:52,878 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:59, output treesize:58 [2019-05-23 11:26:53,276 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:53,277 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:53,277 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:53,278 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:53,279 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:53,280 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:53,281 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 16 [2019-05-23 11:26:53,281 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:53,286 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:53,286 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 11:26:53,286 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:55, output treesize:3 [2019-05-23 11:26:53,304 INFO L146 ILogger]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:53,323 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:53,323 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 26 [2019-05-23 11:26:53,324 INFO L146 ILogger]: Interpolant automaton has 26 states [2019-05-23 11:26:53,324 INFO L146 ILogger]: Constructing interpolant automaton starting with 26 interpolants. [2019-05-23 11:26:53,324 INFO L146 ILogger]: CoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2019-05-23 11:26:53,324 INFO L146 ILogger]: Start difference. First operand 176 states and 193 transitions. Second operand 26 states. [2019-05-23 11:26:55,772 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:55,772 INFO L146 ILogger]: Finished difference Result 517 states and 549 transitions. [2019-05-23 11:26:55,772 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-05-23 11:26:55,772 INFO L146 ILogger]: Start accepts. Automaton has 26 states. Word has length 65 [2019-05-23 11:26:55,773 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:55,774 INFO L146 ILogger]: With dead ends: 517 [2019-05-23 11:26:55,774 INFO L146 ILogger]: Without dead ends: 495 [2019-05-23 11:26:55,776 INFO L146 ILogger]: 0 DeclaredPredicates, 118 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=651, Invalid=3381, Unknown=0, NotChecked=0, Total=4032 [2019-05-23 11:26:55,777 INFO L146 ILogger]: Start minimizeSevpa. Operand 495 states. [2019-05-23 11:26:55,787 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 495 to 164. [2019-05-23 11:26:55,787 INFO L146 ILogger]: Start removeUnreachable. Operand 164 states. [2019-05-23 11:26:55,788 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 164 states to 164 states and 179 transitions. [2019-05-23 11:26:55,788 INFO L146 ILogger]: Start accepts. Automaton has 164 states and 179 transitions. Word has length 65 [2019-05-23 11:26:55,788 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:55,788 INFO L146 ILogger]: Abstraction has 164 states and 179 transitions. [2019-05-23 11:26:55,788 INFO L146 ILogger]: Interpolant automaton has 26 states. [2019-05-23 11:26:55,788 INFO L146 ILogger]: Start isEmpty. Operand 164 states and 179 transitions. [2019-05-23 11:26:55,789 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 70 [2019-05-23 11:26:55,789 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:55,789 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] [2019-05-23 11:26:55,790 INFO L146 ILogger]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:55,790 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:55,790 INFO L146 ILogger]: Analyzing trace with hash 135771269, now seen corresponding path program 2 times [2019-05-23 11:26:55,790 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:55,790 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:55,791 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:55,791 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:55,791 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:55,800 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:56,027 INFO L146 ILogger]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:56,027 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:56,027 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 11:26:56,036 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:26:56,054 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:26:56,054 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:56,055 INFO L146 ILogger]: Trace formula consists of 107 conjuncts, 27 conjunts are in the unsatisfiable core [2019-05-23 11:26:56,057 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:56,112 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 13 treesize of output 9 [2019-05-23 11:26:56,112 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:56,129 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:56,129 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:56,129 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2019-05-23 11:26:56,268 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 11:26:56,268 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:56,269 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:56,269 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 11:26:56,270 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-05-23 11:26:56,305 INFO L146 ILogger]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:56,323 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:56,324 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2019-05-23 11:26:56,324 INFO L146 ILogger]: Interpolant automaton has 25 states [2019-05-23 11:26:56,324 INFO L146 ILogger]: Constructing interpolant automaton starting with 25 interpolants. [2019-05-23 11:26:56,325 INFO L146 ILogger]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2019-05-23 11:26:56,325 INFO L146 ILogger]: Start difference. First operand 164 states and 179 transitions. Second operand 25 states. [2019-05-23 11:26:57,763 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:57,764 INFO L146 ILogger]: Finished difference Result 366 states and 388 transitions. [2019-05-23 11:26:57,764 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-05-23 11:26:57,764 INFO L146 ILogger]: Start accepts. Automaton has 25 states. Word has length 69 [2019-05-23 11:26:57,764 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:57,766 INFO L146 ILogger]: With dead ends: 366 [2019-05-23 11:26:57,766 INFO L146 ILogger]: Without dead ends: 364 [2019-05-23 11:26:57,769 INFO L146 ILogger]: 0 DeclaredPredicates, 135 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1741 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1039, Invalid=4967, Unknown=0, NotChecked=0, Total=6006 [2019-05-23 11:26:57,769 INFO L146 ILogger]: Start minimizeSevpa. Operand 364 states. [2019-05-23 11:26:57,783 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 364 to 206. [2019-05-23 11:26:57,784 INFO L146 ILogger]: Start removeUnreachable. Operand 206 states. [2019-05-23 11:26:57,784 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 206 states to 206 states and 223 transitions. [2019-05-23 11:26:57,785 INFO L146 ILogger]: Start accepts. Automaton has 206 states and 223 transitions. Word has length 69 [2019-05-23 11:26:57,785 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:57,785 INFO L146 ILogger]: Abstraction has 206 states and 223 transitions. [2019-05-23 11:26:57,785 INFO L146 ILogger]: Interpolant automaton has 25 states. [2019-05-23 11:26:57,785 INFO L146 ILogger]: Start isEmpty. Operand 206 states and 223 transitions. [2019-05-23 11:26:57,786 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 70 [2019-05-23 11:26:57,786 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:57,786 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] [2019-05-23 11:26:57,786 INFO L146 ILogger]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:57,787 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:57,787 INFO L146 ILogger]: Analyzing trace with hash -33526843, now seen corresponding path program 3 times [2019-05-23 11:26:57,787 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:57,787 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:57,788 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:57,788 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:26:57,788 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:57,797 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:58,131 WARN L146 ILogger]: Spent 156.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 6 [2019-05-23 11:26:58,346 WARN L146 ILogger]: Spent 145.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 8 [2019-05-23 11:26:58,453 INFO L146 ILogger]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:58,454 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:58,454 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:26:58,463 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:26:58,481 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:26:58,481 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:58,482 INFO L146 ILogger]: Trace formula consists of 107 conjuncts, 27 conjunts are in the unsatisfiable core [2019-05-23 11:26:58,484 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:58,590 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 13 treesize of output 9 [2019-05-23 11:26:58,591 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:58,603 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:58,603 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:58,603 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2019-05-23 11:26:58,831 INFO L146 ILogger]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:58,852 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:58,852 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2019-05-23 11:26:58,854 INFO L146 ILogger]: Interpolant automaton has 27 states [2019-05-23 11:26:58,854 INFO L146 ILogger]: Constructing interpolant automaton starting with 27 interpolants. [2019-05-23 11:26:58,854 INFO L146 ILogger]: CoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:26:58,854 INFO L146 ILogger]: Start difference. First operand 206 states and 223 transitions. Second operand 27 states. [2019-05-23 11:27:00,113 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:00,113 INFO L146 ILogger]: Finished difference Result 327 states and 347 transitions. [2019-05-23 11:27:00,113 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:27:00,114 INFO L146 ILogger]: Start accepts. Automaton has 27 states. Word has length 69 [2019-05-23 11:27:00,114 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:00,116 INFO L146 ILogger]: With dead ends: 327 [2019-05-23 11:27:00,116 INFO L146 ILogger]: Without dead ends: 305 [2019-05-23 11:27:00,117 INFO L146 ILogger]: 0 DeclaredPredicates, 98 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=329, Invalid=1477, Unknown=0, NotChecked=0, Total=1806 [2019-05-23 11:27:00,118 INFO L146 ILogger]: Start minimizeSevpa. Operand 305 states. [2019-05-23 11:27:00,132 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 305 to 220. [2019-05-23 11:27:00,132 INFO L146 ILogger]: Start removeUnreachable. Operand 220 states. [2019-05-23 11:27:00,133 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 220 states to 220 states and 237 transitions. [2019-05-23 11:27:00,133 INFO L146 ILogger]: Start accepts. Automaton has 220 states and 237 transitions. Word has length 69 [2019-05-23 11:27:00,133 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:00,134 INFO L146 ILogger]: Abstraction has 220 states and 237 transitions. [2019-05-23 11:27:00,134 INFO L146 ILogger]: Interpolant automaton has 27 states. [2019-05-23 11:27:00,134 INFO L146 ILogger]: Start isEmpty. Operand 220 states and 237 transitions. [2019-05-23 11:27:00,135 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 84 [2019-05-23 11:27:00,135 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:00,135 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:00,135 INFO L146 ILogger]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:00,135 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:00,135 INFO L146 ILogger]: Analyzing trace with hash -982703980, now seen corresponding path program 3 times [2019-05-23 11:27:00,136 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:00,136 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:00,136 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:00,136 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:00,137 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:00,144 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:00,701 INFO L146 ILogger]: Checked inductivity of 67 backedges. 39 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:00,701 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:00,702 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:27:00,710 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:27:00,736 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-05-23 11:27:00,736 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:00,737 INFO L146 ILogger]: Trace formula consists of 126 conjuncts, 15 conjunts are in the unsatisfiable core [2019-05-23 11:27:00,738 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:01,103 INFO L146 ILogger]: Checked inductivity of 67 backedges. 66 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:01,122 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:01,122 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2019-05-23 11:27:01,122 INFO L146 ILogger]: Interpolant automaton has 28 states [2019-05-23 11:27:01,122 INFO L146 ILogger]: Constructing interpolant automaton starting with 28 interpolants. [2019-05-23 11:27:01,123 INFO L146 ILogger]: CoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:27:01,123 INFO L146 ILogger]: Start difference. First operand 220 states and 237 transitions. Second operand 28 states. [2019-05-23 11:27:01,817 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:01,817 INFO L146 ILogger]: Finished difference Result 445 states and 474 transitions. [2019-05-23 11:27:01,817 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:27:01,817 INFO L146 ILogger]: Start accepts. Automaton has 28 states. Word has length 83 [2019-05-23 11:27:01,818 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:01,819 INFO L146 ILogger]: With dead ends: 445 [2019-05-23 11:27:01,819 INFO L146 ILogger]: Without dead ends: 302 [2019-05-23 11:27:01,820 INFO L146 ILogger]: 0 DeclaredPredicates, 109 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=348, Invalid=1212, Unknown=0, NotChecked=0, Total=1560 [2019-05-23 11:27:01,821 INFO L146 ILogger]: Start minimizeSevpa. Operand 302 states. [2019-05-23 11:27:01,834 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 302 to 254. [2019-05-23 11:27:01,834 INFO L146 ILogger]: Start removeUnreachable. Operand 254 states. [2019-05-23 11:27:01,835 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 254 states to 254 states and 271 transitions. [2019-05-23 11:27:01,835 INFO L146 ILogger]: Start accepts. Automaton has 254 states and 271 transitions. Word has length 83 [2019-05-23 11:27:01,835 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:01,836 INFO L146 ILogger]: Abstraction has 254 states and 271 transitions. [2019-05-23 11:27:01,836 INFO L146 ILogger]: Interpolant automaton has 28 states. [2019-05-23 11:27:01,836 INFO L146 ILogger]: Start isEmpty. Operand 254 states and 271 transitions. [2019-05-23 11:27:01,837 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 94 [2019-05-23 11:27:01,837 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:01,837 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1] [2019-05-23 11:27:01,837 INFO L146 ILogger]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:01,837 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:01,837 INFO L146 ILogger]: Analyzing trace with hash 917542397, now seen corresponding path program 4 times [2019-05-23 11:27:01,838 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:01,838 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:01,838 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:01,838 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:01,839 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:01,849 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:02,143 INFO L146 ILogger]: Checked inductivity of 78 backedges. 12 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:02,143 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:02,143 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:27:02,152 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:27:02,171 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:27:02,172 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:02,173 INFO L146 ILogger]: Trace formula consists of 138 conjuncts, 29 conjunts are in the unsatisfiable core [2019-05-23 11:27:02,174 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:02,317 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 11:27:02,317 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,326 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,326 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 11:27:02,326 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2019-05-23 11:27:02,352 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,353 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 11:27:02,354 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,362 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,363 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,363 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-05-23 11:27:02,424 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,425 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,426 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,427 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,427 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 32 treesize of output 34 [2019-05-23 11:27:02,427 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,435 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,436 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,436 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-05-23 11:27:02,733 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,734 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 11:27:02,734 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,736 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,736 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 11:27:02,736 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:3 [2019-05-23 11:27:02,766 INFO L146 ILogger]: Checked inductivity of 78 backedges. 12 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:02,784 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:02,784 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 32 [2019-05-23 11:27:02,785 INFO L146 ILogger]: Interpolant automaton has 32 states [2019-05-23 11:27:02,785 INFO L146 ILogger]: Constructing interpolant automaton starting with 32 interpolants. [2019-05-23 11:27:02,786 INFO L146 ILogger]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2019-05-23 11:27:02,786 INFO L146 ILogger]: Start difference. First operand 254 states and 271 transitions. Second operand 32 states. [2019-05-23 11:27:04,554 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:04,554 INFO L146 ILogger]: Finished difference Result 559 states and 587 transitions. [2019-05-23 11:27:04,554 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-05-23 11:27:04,555 INFO L146 ILogger]: Start accepts. Automaton has 32 states. Word has length 93 [2019-05-23 11:27:04,555 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:04,557 INFO L146 ILogger]: With dead ends: 559 [2019-05-23 11:27:04,557 INFO L146 ILogger]: Without dead ends: 537 [2019-05-23 11:27:04,558 INFO L146 ILogger]: 0 DeclaredPredicates, 146 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1181 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=503, Invalid=3919, Unknown=0, NotChecked=0, Total=4422 [2019-05-23 11:27:04,559 INFO L146 ILogger]: Start minimizeSevpa. Operand 537 states. [2019-05-23 11:27:04,583 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 537 to 355. [2019-05-23 11:27:04,583 INFO L146 ILogger]: Start removeUnreachable. Operand 355 states. [2019-05-23 11:27:04,584 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 355 states to 355 states and 377 transitions. [2019-05-23 11:27:04,584 INFO L146 ILogger]: Start accepts. Automaton has 355 states and 377 transitions. Word has length 93 [2019-05-23 11:27:04,585 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:04,585 INFO L146 ILogger]: Abstraction has 355 states and 377 transitions. [2019-05-23 11:27:04,585 INFO L146 ILogger]: Interpolant automaton has 32 states. [2019-05-23 11:27:04,585 INFO L146 ILogger]: Start isEmpty. Operand 355 states and 377 transitions. [2019-05-23 11:27:04,586 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 94 [2019-05-23 11:27:04,586 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:04,586 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1] [2019-05-23 11:27:04,586 INFO L146 ILogger]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:04,587 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:04,587 INFO L146 ILogger]: Analyzing trace with hash 821612221, now seen corresponding path program 1 times [2019-05-23 11:27:04,587 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:04,587 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:04,588 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:04,588 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:04,588 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:04,599 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:05,333 INFO L146 ILogger]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:05,333 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:05,333 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:27:05,343 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:05,363 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:05,364 INFO L146 ILogger]: Trace formula consists of 138 conjuncts, 37 conjunts are in the unsatisfiable core [2019-05-23 11:27:05,365 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:05,501 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 11:27:05,501 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:05,506 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:05,507 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:05,507 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-05-23 11:27:05,540 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:05,540 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 11:27:05,540 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:05,548 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:05,549 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:05,549 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-05-23 11:27:05,583 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:05,583 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:05,584 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:05,585 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:05,586 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 32 treesize of output 34 [2019-05-23 11:27:05,586 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:05,593 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:05,594 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:05,594 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-05-23 11:27:05,894 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:05,895 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 11:27:05,895 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:05,899 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:05,899 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 11:27:05,899 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:3 [2019-05-23 11:27:05,969 INFO L146 ILogger]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:05,988 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:05,989 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 35 [2019-05-23 11:27:05,989 INFO L146 ILogger]: Interpolant automaton has 35 states [2019-05-23 11:27:05,989 INFO L146 ILogger]: Constructing interpolant automaton starting with 35 interpolants. [2019-05-23 11:27:05,990 INFO L146 ILogger]: CoverageRelationStatistics Valid=136, Invalid=1054, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 11:27:05,990 INFO L146 ILogger]: Start difference. First operand 355 states and 377 transitions. Second operand 35 states. [2019-05-23 11:27:11,436 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:11,436 INFO L146 ILogger]: Finished difference Result 839 states and 882 transitions. [2019-05-23 11:27:11,437 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2019-05-23 11:27:11,437 INFO L146 ILogger]: Start accepts. Automaton has 35 states. Word has length 93 [2019-05-23 11:27:11,437 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:11,441 INFO L146 ILogger]: With dead ends: 839 [2019-05-23 11:27:11,441 INFO L146 ILogger]: Without dead ends: 837 [2019-05-23 11:27:11,448 INFO L146 ILogger]: 0 DeclaredPredicates, 254 GetRequests, 77 SyntacticMatches, 2 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11829 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=3459, Invalid=27693, Unknown=0, NotChecked=0, Total=31152 [2019-05-23 11:27:11,449 INFO L146 ILogger]: Start minimizeSevpa. Operand 837 states. [2019-05-23 11:27:11,487 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 837 to 423. [2019-05-23 11:27:11,487 INFO L146 ILogger]: Start removeUnreachable. Operand 423 states. [2019-05-23 11:27:11,488 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 423 states to 423 states and 448 transitions. [2019-05-23 11:27:11,488 INFO L146 ILogger]: Start accepts. Automaton has 423 states and 448 transitions. Word has length 93 [2019-05-23 11:27:11,488 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:11,488 INFO L146 ILogger]: Abstraction has 423 states and 448 transitions. [2019-05-23 11:27:11,488 INFO L146 ILogger]: Interpolant automaton has 35 states. [2019-05-23 11:27:11,488 INFO L146 ILogger]: Start isEmpty. Operand 423 states and 448 transitions. [2019-05-23 11:27:11,489 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 104 [2019-05-23 11:27:11,489 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:11,489 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:11,489 INFO L146 ILogger]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:11,489 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:11,489 INFO L146 ILogger]: Analyzing trace with hash -944563162, now seen corresponding path program 5 times [2019-05-23 11:27:11,489 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:11,489 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:11,490 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:11,490 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:11,490 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:11,502 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:12,251 WARN L146 ILogger]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2019-05-23 11:27:12,454 INFO L146 ILogger]: Checked inductivity of 99 backedges. 12 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:12,454 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:12,455 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:27:12,463 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:27:12,500 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2019-05-23 11:27:12,500 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:12,501 INFO L146 ILogger]: Trace formula consists of 150 conjuncts, 28 conjunts are in the unsatisfiable core [2019-05-23 11:27:12,504 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:12,575 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 11:27:12,576 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:12,581 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:12,582 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:12,582 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-05-23 11:27:12,664 INFO L146 ILogger]: treesize reduction 33, result has 21.4 percent of original size [2019-05-23 11:27:12,665 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2019-05-23 11:27:12,665 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:12,672 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:12,672 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:12,672 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2019-05-23 11:27:12,724 INFO L146 ILogger]: treesize reduction 88, result has 20.0 percent of original size [2019-05-23 11:27:12,725 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 40 [2019-05-23 11:27:12,725 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:12,735 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:12,735 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:12,736 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:40 [2019-05-23 11:27:12,823 INFO L146 ILogger]: treesize reduction 130, result has 33.7 percent of original size [2019-05-23 11:27:12,823 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 87 [2019-05-23 11:27:12,824 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:12,854 INFO L146 ILogger]: treesize reduction 32, result has 61.9 percent of original size [2019-05-23 11:27:12,854 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:12,855 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:52 [2019-05-23 11:27:13,045 INFO L146 ILogger]: treesize reduction 254, result has 15.3 percent of original size [2019-05-23 11:27:13,046 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 59 treesize of output 67 [2019-05-23 11:27:13,047 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,061 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,062 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:27:13,062 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:66