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/mbpr5_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:25:02,769 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:25:02,771 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:25:02,789 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:25:02,789 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:25:02,791 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:25:02,794 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:25:02,797 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:25:02,799 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:25:02,807 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:25:02,808 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:25:02,809 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:25:02,810 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:25:02,811 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:25:02,814 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:25:02,816 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:25:02,817 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:25:02,822 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:25:02,827 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:25:02,829 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:25:02,830 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:25:02,833 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:25:02,835 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:25:02,835 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:25:02,835 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:25:02,836 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:25:02,836 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:25:02,838 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:25:02,838 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:25:02,839 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:25:02,839 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:25:02,840 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:25:02,841 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:25:02,841 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:25:02,842 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:25:02,842 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:25:02,843 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:25:02,843 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:25:02,844 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:25:02,844 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:25:02,859 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:25:02,860 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:25:02,861 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:25:02,861 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:25:02,861 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:25:02,862 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:25:02,862 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:25:02,862 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:25:02,862 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:25:02,863 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:25:02,863 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:25:02,863 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:25:02,863 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:25:02,863 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:25:02,864 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:25:02,864 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:25:02,864 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:25:02,864 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:25:02,864 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:25:02,865 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:25:02,865 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:25:02,865 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:25:02,865 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:25:02,866 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:25:02,866 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:25:02,866 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:25:02,866 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:25:02,866 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:25:02,867 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 11:25:02,922 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:25:02,942 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:25:02,948 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:25:02,949 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:25:02,950 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:25:02,950 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-tiling/mbpr5_true-unreach-call.i [2019-05-23 11:25:03,015 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdbbc2a25/f40d2b1f760b4a0a9d3e6c2bedf88881/FLAG88416d9c9 [2019-05-23 11:25:03,477 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:25:03,478 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-tiling/mbpr5_true-unreach-call.i [2019-05-23 11:25:03,485 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdbbc2a25/f40d2b1f760b4a0a9d3e6c2bedf88881/FLAG88416d9c9 [2019-05-23 11:25:03,834 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdbbc2a25/f40d2b1f760b4a0a9d3e6c2bedf88881 [2019-05-23 11:25:03,845 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:25:03,846 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:25:03,847 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:25:03,848 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:25:03,852 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:25:03,853 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:25:03" (1/1) ... [2019-05-23 11:25:03,856 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c5a4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:03, skipping insertion in model container [2019-05-23 11:25:03,857 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:25:03" (1/1) ... [2019-05-23 11:25:03,865 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:25:03,897 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:25:04,120 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:25:04,131 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:25:04,183 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:25:04,200 INFO L146 ILogger]: Completed translation [2019-05-23 11:25:04,201 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04 WrapperNode [2019-05-23 11:25:04,201 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:25:04,202 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:25:04,202 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:25:04,202 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:25:04,213 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04" (1/1) ... [2019-05-23 11:25:04,225 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04" (1/1) ... [2019-05-23 11:25:04,363 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:25:04,363 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:25:04,364 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:25:04,364 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:25:04,373 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04" (1/1) ... [2019-05-23 11:25:04,374 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04" (1/1) ... [2019-05-23 11:25:04,378 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04" (1/1) ... [2019-05-23 11:25:04,378 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04" (1/1) ... [2019-05-23 11:25:04,390 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04" (1/1) ... [2019-05-23 11:25:04,396 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04" (1/1) ... [2019-05-23 11:25:04,399 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04" (1/1) ... [2019-05-23 11:25:04,403 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:25:04,403 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:25:04,404 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:25:04,404 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:25:04,405 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04" (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 11:25:04,458 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:25:04,458 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:25:04,458 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:25:04,459 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:25:04,459 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:25:04,459 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:25:05,429 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:25:05,429 INFO L146 ILogger]: Removed 12 assume(true) statements. [2019-05-23 11:25:05,430 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:25:05 BoogieIcfgContainer [2019-05-23 11:25:05,430 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:25:05,431 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:25:05,432 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:25:05,435 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:25:05,435 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:25:03" (1/3) ... [2019-05-23 11:25:05,436 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6716afb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:25:05, skipping insertion in model container [2019-05-23 11:25:05,436 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04" (2/3) ... [2019-05-23 11:25:05,437 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6716afb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:25:05, skipping insertion in model container [2019-05-23 11:25:05,437 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:25:05" (3/3) ... [2019-05-23 11:25:05,438 INFO L146 ILogger]: Analyzing ICFG mbpr5_true-unreach-call.i [2019-05-23 11:25:05,448 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:25:05,461 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:25:05,479 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:25:05,514 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:25:05,514 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:25:05,515 INFO L146 ILogger]: Hoare is true [2019-05-23 11:25:05,515 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:25:05,515 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:25:05,515 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:25:05,515 INFO L146 ILogger]: Difference is false [2019-05-23 11:25:05,516 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:25:05,516 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:25:05,534 INFO L146 ILogger]: Start isEmpty. Operand 147 states. [2019-05-23 11:25:05,543 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 40 [2019-05-23 11:25:05,543 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:05,544 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] [2019-05-23 11:25:05,546 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:05,551 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:05,551 INFO L146 ILogger]: Analyzing trace with hash -970873298, now seen corresponding path program 1 times [2019-05-23 11:25:05,552 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:05,553 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:05,591 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:05,591 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:05,591 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:05,643 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:05,701 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:05,704 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:25:05,704 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:25:05,708 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:25:05,721 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:25:05,722 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:25:05,724 INFO L146 ILogger]: Start difference. First operand 147 states. Second operand 2 states. [2019-05-23 11:25:05,751 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:05,752 INFO L146 ILogger]: Finished difference Result 252 states and 287 transitions. [2019-05-23 11:25:05,752 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:25:05,754 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 39 [2019-05-23 11:25:05,754 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:05,766 INFO L146 ILogger]: With dead ends: 252 [2019-05-23 11:25:05,767 INFO L146 ILogger]: Without dead ends: 138 [2019-05-23 11:25:05,771 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 11:25:05,786 INFO L146 ILogger]: Start minimizeSevpa. Operand 138 states. [2019-05-23 11:25:05,809 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-05-23 11:25:05,811 INFO L146 ILogger]: Start removeUnreachable. Operand 138 states. [2019-05-23 11:25:05,814 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 138 states to 138 states and 149 transitions. [2019-05-23 11:25:05,815 INFO L146 ILogger]: Start accepts. Automaton has 138 states and 149 transitions. Word has length 39 [2019-05-23 11:25:05,816 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:05,816 INFO L146 ILogger]: Abstraction has 138 states and 149 transitions. [2019-05-23 11:25:05,816 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:25:05,817 INFO L146 ILogger]: Start isEmpty. Operand 138 states and 149 transitions. [2019-05-23 11:25:05,819 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 40 [2019-05-23 11:25:05,819 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:05,819 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] [2019-05-23 11:25:05,820 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:05,820 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:05,820 INFO L146 ILogger]: Analyzing trace with hash 154732762, now seen corresponding path program 1 times [2019-05-23 11:25:05,821 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:05,821 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:05,822 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:05,822 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:05,822 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:05,866 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:05,998 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:05,998 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:25:05,999 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:25:06,000 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:25:06,001 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:25:06,001 INFO L146 ILogger]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:25:06,001 INFO L146 ILogger]: Start difference. First operand 138 states and 149 transitions. Second operand 5 states. [2019-05-23 11:25:06,241 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:06,241 INFO L146 ILogger]: Finished difference Result 168 states and 181 transitions. [2019-05-23 11:25:06,242 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:25:06,242 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 39 [2019-05-23 11:25:06,243 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:06,246 INFO L146 ILogger]: With dead ends: 168 [2019-05-23 11:25:06,246 INFO L146 ILogger]: Without dead ends: 166 [2019-05-23 11:25:06,248 INFO L146 ILogger]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:25:06,248 INFO L146 ILogger]: Start minimizeSevpa. Operand 166 states. [2019-05-23 11:25:06,258 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 166 to 142. [2019-05-23 11:25:06,258 INFO L146 ILogger]: Start removeUnreachable. Operand 142 states. [2019-05-23 11:25:06,260 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 142 states to 142 states and 153 transitions. [2019-05-23 11:25:06,260 INFO L146 ILogger]: Start accepts. Automaton has 142 states and 153 transitions. Word has length 39 [2019-05-23 11:25:06,260 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:06,261 INFO L146 ILogger]: Abstraction has 142 states and 153 transitions. [2019-05-23 11:25:06,261 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:25:06,261 INFO L146 ILogger]: Start isEmpty. Operand 142 states and 153 transitions. [2019-05-23 11:25:06,263 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 42 [2019-05-23 11:25:06,263 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:06,263 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 11:25:06,264 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:06,264 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:06,264 INFO L146 ILogger]: Analyzing trace with hash -890412457, now seen corresponding path program 1 times [2019-05-23 11:25:06,264 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:06,265 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:06,266 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:06,266 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:06,266 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:06,315 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:06,566 WARN L146 ILogger]: Spent 118.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 9 [2019-05-23 11:25:07,004 WARN L146 ILogger]: Spent 322.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 11 [2019-05-23 11:25:07,028 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:07,028 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:25:07,028 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:25:07,029 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:25:07,029 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:25:07,029 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:25:07,030 INFO L146 ILogger]: Start difference. First operand 142 states and 153 transitions. Second operand 5 states. [2019-05-23 11:25:08,043 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:08,043 INFO L146 ILogger]: Finished difference Result 335 states and 365 transitions. [2019-05-23 11:25:08,043 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:25:08,044 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 41 [2019-05-23 11:25:08,044 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:08,047 INFO L146 ILogger]: With dead ends: 335 [2019-05-23 11:25:08,048 INFO L146 ILogger]: Without dead ends: 232 [2019-05-23 11:25:08,049 INFO L146 ILogger]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:25:08,050 INFO L146 ILogger]: Start minimizeSevpa. Operand 232 states. [2019-05-23 11:25:08,067 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 232 to 147. [2019-05-23 11:25:08,067 INFO L146 ILogger]: Start removeUnreachable. Operand 147 states. [2019-05-23 11:25:08,068 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2019-05-23 11:25:08,068 INFO L146 ILogger]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 41 [2019-05-23 11:25:08,069 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:08,069 INFO L146 ILogger]: Abstraction has 147 states and 158 transitions. [2019-05-23 11:25:08,069 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:25:08,069 INFO L146 ILogger]: Start isEmpty. Operand 147 states and 158 transitions. [2019-05-23 11:25:08,074 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 132 [2019-05-23 11:25:08,074 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:08,074 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:08,075 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:08,075 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:08,075 INFO L146 ILogger]: Analyzing trace with hash 100443079, now seen corresponding path program 1 times [2019-05-23 11:25:08,075 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:08,076 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:08,077 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:08,077 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:08,077 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:08,121 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:08,293 INFO L146 ILogger]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-05-23 11:25:08,293 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:25:08,293 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:25:08,294 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:25:08,294 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:25:08,295 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:25:08,295 INFO L146 ILogger]: Start difference. First operand 147 states and 158 transitions. Second operand 4 states. [2019-05-23 11:25:08,342 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:08,342 INFO L146 ILogger]: Finished difference Result 188 states and 202 transitions. [2019-05-23 11:25:08,343 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:25:08,343 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 131 [2019-05-23 11:25:08,344 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:08,345 INFO L146 ILogger]: With dead ends: 188 [2019-05-23 11:25:08,345 INFO L146 ILogger]: Without dead ends: 146 [2019-05-23 11:25:08,346 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:25:08,347 INFO L146 ILogger]: Start minimizeSevpa. Operand 146 states. [2019-05-23 11:25:08,354 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-05-23 11:25:08,354 INFO L146 ILogger]: Start removeUnreachable. Operand 146 states. [2019-05-23 11:25:08,355 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 146 states to 146 states and 156 transitions. [2019-05-23 11:25:08,355 INFO L146 ILogger]: Start accepts. Automaton has 146 states and 156 transitions. Word has length 131 [2019-05-23 11:25:08,356 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:08,356 INFO L146 ILogger]: Abstraction has 146 states and 156 transitions. [2019-05-23 11:25:08,356 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:25:08,356 INFO L146 ILogger]: Start isEmpty. Operand 146 states and 156 transitions. [2019-05-23 11:25:08,358 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 132 [2019-05-23 11:25:08,358 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:08,359 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:08,359 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:08,359 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:08,359 INFO L146 ILogger]: Analyzing trace with hash -2081270745, now seen corresponding path program 1 times [2019-05-23 11:25:08,359 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:08,360 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:08,361 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:08,361 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:08,361 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:08,437 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:09,456 WARN L146 ILogger]: Spent 192.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2019-05-23 11:25:10,483 WARN L146 ILogger]: Spent 218.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 19 [2019-05-23 11:25:11,158 INFO L146 ILogger]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-05-23 11:25:11,159 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:11,159 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:11,173 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:11,227 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:11,230 INFO L146 ILogger]: Trace formula consists of 194 conjuncts, 49 conjunts are in the unsatisfiable core [2019-05-23 11:25:11,244 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:11,582 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:25:11,583 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:11,601 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:11,602 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:11,602 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-05-23 11:25:11,738 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:11,740 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:11,741 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:11,785 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:11,786 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:11,786 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:11,806 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:11,808 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:11,808 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:11,821 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:11,822 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:11,822 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:11,835 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:11,836 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:11,837 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:11,851 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:11,851 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:11,852 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:11,888 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:11,890 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-05-23 11:25:11,891 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:11,921 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:11,922 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:11,922 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:14 [2019-05-23 11:25:11,996 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:11,997 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:11,997 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,008 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,009 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,009 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:12,048 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2019-05-23 11:25:12,048 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,060 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,061 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,061 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:22 [2019-05-23 11:25:12,120 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:12,121 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:12,121 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,136 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,137 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,137 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:12,147 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:12,148 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:12,148 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,169 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,169 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,169 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:12,186 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:12,187 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-05-23 11:25:12,187 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,199 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,200 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,200 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:14 [2019-05-23 11:25:12,293 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:12,294 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:12,294 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,308 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,309 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,309 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:12,369 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 41 treesize of output 19 [2019-05-23 11:25:12,371 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,391 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,391 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,392 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:22 [2019-05-23 11:25:12,405 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:12,407 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:12,408 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,424 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,424 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,425 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:12,437 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:12,438 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:12,439 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,453 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,454 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,454 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:12,465 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:12,466 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-05-23 11:25:12,467 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,476 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,477 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,477 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:14 [2019-05-23 11:25:12,540 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:12,543 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:12,544 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,683 WARN L146 ILogger]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2019-05-23 11:25:12,684 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,684 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,685 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:12,829 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 41 treesize of output 19 [2019-05-23 11:25:12,829 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,875 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,876 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,876 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:22 [2019-05-23 11:25:12,883 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:12,883 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:12,884 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,922 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,922 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,922 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:12,931 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:12,932 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:12,932 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,944 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,945 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,945 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:12,951 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:12,951 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-05-23 11:25:12,952 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,961 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:12,961 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:12,962 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:14 [2019-05-23 11:25:13,060 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,062 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:13,062 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,100 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,100 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,101 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2019-05-23 11:25:13,196 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,199 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,199 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 34 [2019-05-23 11:25:13,200 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,210 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,211 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,211 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:34 [2019-05-23 11:25:13,220 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,221 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,223 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,225 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,225 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 11:25:13,226 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,238 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,239 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,239 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:34 [2019-05-23 11:25:13,274 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,275 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,276 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,277 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,277 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 11:25:13,278 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,292 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,292 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,293 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:34 [2019-05-23 11:25:13,312 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,315 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,316 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:13,317 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,317 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 11:25:13,318 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,329 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,329 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,330 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:36, output treesize:23 [2019-05-23 11:25:13,527 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,528 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2019-05-23 11:25:13,529 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,533 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:13,533 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:13,533 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2019-05-23 11:25:13,652 INFO L146 ILogger]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:13,672 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:13,672 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19] total 30 [2019-05-23 11:25:13,673 INFO L146 ILogger]: Interpolant automaton has 30 states [2019-05-23 11:25:13,673 INFO L146 ILogger]: Constructing interpolant automaton starting with 30 interpolants. [2019-05-23 11:25:13,674 INFO L146 ILogger]: CoverageRelationStatistics Valid=147, Invalid=723, Unknown=0, NotChecked=0, Total=870 [2019-05-23 11:25:13,676 INFO L146 ILogger]: Start difference. First operand 146 states and 156 transitions. Second operand 30 states. [2019-05-23 11:25:17,651 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:17,652 INFO L146 ILogger]: Finished difference Result 491 states and 527 transitions. [2019-05-23 11:25:17,654 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-05-23 11:25:17,654 INFO L146 ILogger]: Start accepts. Automaton has 30 states. Word has length 131 [2019-05-23 11:25:17,655 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:17,657 INFO L146 ILogger]: With dead ends: 491 [2019-05-23 11:25:17,657 INFO L146 ILogger]: Without dead ends: 366 [2019-05-23 11:25:17,659 INFO L146 ILogger]: 0 DeclaredPredicates, 224 GetRequests, 137 SyntacticMatches, 25 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=722, Invalid=3310, Unknown=0, NotChecked=0, Total=4032 [2019-05-23 11:25:17,660 INFO L146 ILogger]: Start minimizeSevpa. Operand 366 states. [2019-05-23 11:25:17,669 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 366 to 149. [2019-05-23 11:25:17,669 INFO L146 ILogger]: Start removeUnreachable. Operand 149 states. [2019-05-23 11:25:17,670 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 149 states to 149 states and 158 transitions. [2019-05-23 11:25:17,670 INFO L146 ILogger]: Start accepts. Automaton has 149 states and 158 transitions. Word has length 131 [2019-05-23 11:25:17,670 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:17,670 INFO L146 ILogger]: Abstraction has 149 states and 158 transitions. [2019-05-23 11:25:17,671 INFO L146 ILogger]: Interpolant automaton has 30 states. [2019-05-23 11:25:17,671 INFO L146 ILogger]: Start isEmpty. Operand 149 states and 158 transitions. [2019-05-23 11:25:17,672 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 146 [2019-05-23 11:25:17,673 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:17,673 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:17,673 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:17,674 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:17,674 INFO L146 ILogger]: Analyzing trace with hash 1417208278, now seen corresponding path program 1 times [2019-05-23 11:25:17,674 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:17,674 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:17,675 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:17,675 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:17,675 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:17,707 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:18,388 INFO L146 ILogger]: Checked inductivity of 13 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:25:18,389 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:18,389 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:18,397 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:18,442 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:18,444 INFO L146 ILogger]: Trace formula consists of 213 conjuncts, 48 conjunts are in the unsatisfiable core [2019-05-23 11:25:18,452 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:18,584 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:25:18,584 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,593 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,594 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,594 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2019-05-23 11:25:18,620 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:18,621 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:18,621 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,631 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,631 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,632 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:18,636 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:18,637 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:18,638 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,646 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,646 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,647 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:18,651 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:18,652 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:18,653 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,660 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,661 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,661 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:18,670 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:18,671 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:25:18,671 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,681 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,681 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,682 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:16 [2019-05-23 11:25:18,736 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:18,737 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:18,738 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,747 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,747 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,748 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:18,767 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:18,768 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:18,769 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,779 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,780 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,780 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:18,810 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 41 treesize of output 19 [2019-05-23 11:25:18,811 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,821 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,822 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,822 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:22 [2019-05-23 11:25:18,828 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:18,829 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:18,829 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,842 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,842 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,843 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:18,861 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:18,861 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:25:18,862 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,870 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,871 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,871 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:16 [2019-05-23 11:25:18,896 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:18,897 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:18,897 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,907 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,907 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,908 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:18,927 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:18,928 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:18,928 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,937 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,938 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,938 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:18,981 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 41 treesize of output 19 [2019-05-23 11:25:18,982 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,992 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:18,992 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:18,993 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:22 [2019-05-23 11:25:18,998 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:18,998 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:18,999 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,011 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,011 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,015 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:19,026 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:19,027 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:25:19,027 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,038 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,039 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,039 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:16 [2019-05-23 11:25:19,061 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:19,062 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:19,062 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,108 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,109 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,109 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2019-05-23 11:25:19,145 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:19,146 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:19,147 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:19,148 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,149 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 11:25:19,149 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,160 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,160 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,161 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:34 [2019-05-23 11:25:19,199 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:19,200 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,200 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 34 [2019-05-23 11:25:19,201 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,211 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,212 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,212 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:34 [2019-05-23 11:25:19,230 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:19,231 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:19,232 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:19,233 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,233 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 11:25:19,234 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,245 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,246 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,246 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:34 [2019-05-23 11:25:19,250 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:19,254 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:19,255 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:19,255 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,256 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 11:25:19,256 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,272 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,273 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,273 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:25 [2019-05-23 11:25:19,399 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,400 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2019-05-23 11:25:19,400 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,404 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,404 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,404 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2019-05-23 11:25:19,499 INFO L146 ILogger]: Checked inductivity of 13 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:25:19,519 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:19,520 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 28 [2019-05-23 11:25:19,520 INFO L146 ILogger]: Interpolant automaton has 28 states [2019-05-23 11:25:19,520 INFO L146 ILogger]: Constructing interpolant automaton starting with 28 interpolants. [2019-05-23 11:25:19,521 INFO L146 ILogger]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:25:19,521 INFO L146 ILogger]: Start difference. First operand 149 states and 158 transitions. Second operand 28 states. [2019-05-23 11:25:21,992 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:21,992 INFO L146 ILogger]: Finished difference Result 531 states and 562 transitions. [2019-05-23 11:25:21,992 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-05-23 11:25:21,992 INFO L146 ILogger]: Start accepts. Automaton has 28 states. Word has length 145 [2019-05-23 11:25:21,993 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:21,995 INFO L146 ILogger]: With dead ends: 531 [2019-05-23 11:25:21,995 INFO L146 ILogger]: Without dead ends: 423 [2019-05-23 11:25:21,996 INFO L146 ILogger]: 0 DeclaredPredicates, 226 GetRequests, 151 SyntacticMatches, 21 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 875 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=599, Invalid=2481, Unknown=0, NotChecked=0, Total=3080 [2019-05-23 11:25:21,997 INFO L146 ILogger]: Start minimizeSevpa. Operand 423 states. [2019-05-23 11:25:22,018 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 423 to 223. [2019-05-23 11:25:22,018 INFO L146 ILogger]: Start removeUnreachable. Operand 223 states. [2019-05-23 11:25:22,019 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 223 states to 223 states and 236 transitions. [2019-05-23 11:25:22,019 INFO L146 ILogger]: Start accepts. Automaton has 223 states and 236 transitions. Word has length 145 [2019-05-23 11:25:22,019 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:22,020 INFO L146 ILogger]: Abstraction has 223 states and 236 transitions. [2019-05-23 11:25:22,020 INFO L146 ILogger]: Interpolant automaton has 28 states. [2019-05-23 11:25:22,020 INFO L146 ILogger]: Start isEmpty. Operand 223 states and 236 transitions. [2019-05-23 11:25:22,022 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 160 [2019-05-23 11:25:22,022 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:22,022 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:22,023 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:22,023 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:22,023 INFO L146 ILogger]: Analyzing trace with hash 151146821, now seen corresponding path program 2 times [2019-05-23 11:25:22,023 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:22,023 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:22,024 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:22,024 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:22,024 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:22,051 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:23,191 INFO L146 ILogger]: Checked inductivity of 35 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:25:23,192 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:23,192 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:23,201 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:25:23,256 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:25:23,256 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:23,258 INFO L146 ILogger]: Trace formula consists of 232 conjuncts, 46 conjunts are in the unsatisfiable core [2019-05-23 11:25:23,265 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:23,354 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:25:23,354 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,363 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,363 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,364 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2019-05-23 11:25:23,392 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,393 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:23,393 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,403 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,404 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,404 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:23,409 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,410 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:23,410 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,420 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,420 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,421 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:23,426 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,426 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:23,427 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,435 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,436 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,436 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:23,442 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,443 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:25:23,444 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,450 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,450 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,451 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:16 [2019-05-23 11:25:23,493 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,494 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:23,494 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,502 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,503 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,503 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:23,507 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,508 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:23,508 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,517 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,518 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,518 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:23,522 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,523 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:23,524 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,534 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,535 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,535 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:23,567 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 41 treesize of output 19 [2019-05-23 11:25:23,568 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,576 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,577 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,577 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:22 [2019-05-23 11:25:23,588 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,589 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:25:23,589 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,595 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,596 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,596 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:16 [2019-05-23 11:25:23,619 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,620 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:23,620 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,630 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,630 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,630 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2019-05-23 11:25:23,666 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,667 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,668 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,669 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,669 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 11:25:23,669 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,681 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,681 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,681 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:34 [2019-05-23 11:25:23,687 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,688 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,689 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,690 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,690 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 11:25:23,691 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,703 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,703 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,704 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:34 [2019-05-23 11:25:23,751 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,752 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,752 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 34 [2019-05-23 11:25:23,752 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,762 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,763 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,763 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:34 [2019-05-23 11:25:23,783 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,784 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,787 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:23,788 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,788 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 11:25:23,789 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,798 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:23,798 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:23,798 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:25 [2019-05-23 11:25:24,042 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:24,042 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2019-05-23 11:25:24,043 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:24,087 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:24,087 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:24,088 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2019-05-23 11:25:24,225 INFO L146 ILogger]: Checked inductivity of 35 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:25:24,243 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:24,244 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 33 [2019-05-23 11:25:24,244 INFO L146 ILogger]: Interpolant automaton has 33 states [2019-05-23 11:25:24,245 INFO L146 ILogger]: Constructing interpolant automaton starting with 33 interpolants. [2019-05-23 11:25:24,245 INFO L146 ILogger]: CoverageRelationStatistics Valid=150, Invalid=906, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 11:25:24,245 INFO L146 ILogger]: Start difference. First operand 223 states and 236 transitions. Second operand 33 states. [2019-05-23 11:25:28,050 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:28,050 INFO L146 ILogger]: Finished difference Result 717 states and 752 transitions. [2019-05-23 11:25:28,050 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-05-23 11:25:28,051 INFO L146 ILogger]: Start accepts. Automaton has 33 states. Word has length 159 [2019-05-23 11:25:28,051 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:28,053 INFO L146 ILogger]: With dead ends: 717 [2019-05-23 11:25:28,053 INFO L146 ILogger]: Without dead ends: 557 [2019-05-23 11:25:28,055 INFO L146 ILogger]: 0 DeclaredPredicates, 242 GetRequests, 153 SyntacticMatches, 21 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1317 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=867, Invalid=3963, Unknown=0, NotChecked=0, Total=4830 [2019-05-23 11:25:28,056 INFO L146 ILogger]: Start minimizeSevpa. Operand 557 states. [2019-05-23 11:25:28,068 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 557 to 299. [2019-05-23 11:25:28,068 INFO L146 ILogger]: Start removeUnreachable. Operand 299 states. [2019-05-23 11:25:28,069 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 299 states to 299 states and 315 transitions. [2019-05-23 11:25:28,069 INFO L146 ILogger]: Start accepts. Automaton has 299 states and 315 transitions. Word has length 159 [2019-05-23 11:25:28,070 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:28,070 INFO L146 ILogger]: Abstraction has 299 states and 315 transitions. [2019-05-23 11:25:28,070 INFO L146 ILogger]: Interpolant automaton has 33 states. [2019-05-23 11:25:28,070 INFO L146 ILogger]: Start isEmpty. Operand 299 states and 315 transitions. [2019-05-23 11:25:28,072 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 164 [2019-05-23 11:25:28,072 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:28,072 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:28,073 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:28,073 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:28,073 INFO L146 ILogger]: Analyzing trace with hash -661338234, now seen corresponding path program 3 times [2019-05-23 11:25:28,073 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:28,073 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:28,074 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:28,074 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:28,075 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:28,091 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:28,561 WARN L146 ILogger]: Spent 175.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2019-05-23 11:25:28,911 INFO L146 ILogger]: Checked inductivity of 32 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-05-23 11:25:28,911 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:28,911 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:28,919 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:25:29,050 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:25:29,050 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:29,051 INFO L146 ILogger]: Trace formula consists of 237 conjuncts, 13 conjunts are in the unsatisfiable core [2019-05-23 11:25:29,055 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:29,640 INFO L146 ILogger]: Checked inductivity of 32 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-05-23 11:25:29,660 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:29,660 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2019-05-23 11:25:29,660 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:25:29,661 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:25:29,661 INFO L146 ILogger]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:25:29,661 INFO L146 ILogger]: Start difference. First operand 299 states and 315 transitions. Second operand 21 states. [2019-05-23 11:25:31,839 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:31,840 INFO L146 ILogger]: Finished difference Result 852 states and 890 transitions. [2019-05-23 11:25:31,841 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-05-23 11:25:31,841 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 163 [2019-05-23 11:25:31,842 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:31,850 INFO L146 ILogger]: With dead ends: 852 [2019-05-23 11:25:31,850 INFO L146 ILogger]: Without dead ends: 732 [2019-05-23 11:25:31,852 INFO L146 ILogger]: 0 DeclaredPredicates, 196 GetRequests, 154 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=301, Invalid=1421, Unknown=0, NotChecked=0, Total=1722 [2019-05-23 11:25:31,853 INFO L146 ILogger]: Start minimizeSevpa. Operand 732 states. [2019-05-23 11:25:31,878 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 732 to 473. [2019-05-23 11:25:31,879 INFO L146 ILogger]: Start removeUnreachable. Operand 473 states. [2019-05-23 11:25:31,880 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 473 states to 473 states and 495 transitions. [2019-05-23 11:25:31,880 INFO L146 ILogger]: Start accepts. Automaton has 473 states and 495 transitions. Word has length 163 [2019-05-23 11:25:31,881 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:31,881 INFO L146 ILogger]: Abstraction has 473 states and 495 transitions. [2019-05-23 11:25:31,881 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 11:25:31,881 INFO L146 ILogger]: Start isEmpty. Operand 473 states and 495 transitions. [2019-05-23 11:25:31,884 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 164 [2019-05-23 11:25:31,884 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:31,885 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:31,885 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:31,885 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:31,886 INFO L146 ILogger]: Analyzing trace with hash -1006096250, now seen corresponding path program 4 times [2019-05-23 11:25:31,886 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:31,886 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:31,887 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:31,887 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:31,887 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:31,909 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:32,331 WARN L146 ILogger]: Spent 103.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2019-05-23 11:25:32,508 INFO L146 ILogger]: Checked inductivity of 32 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-05-23 11:25:32,508 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:32,508 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:32,517 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:25:32,544 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:25:32,545 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:32,545 INFO L146 ILogger]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:25:32,547 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:32,823 INFO L146 ILogger]: Checked inductivity of 32 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-05-23 11:25:32,842 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:32,842 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2019-05-23 11:25:32,842 INFO L146 ILogger]: Interpolant automaton has 19 states [2019-05-23 11:25:32,843 INFO L146 ILogger]: Constructing interpolant automaton starting with 19 interpolants. [2019-05-23 11:25:32,843 INFO L146 ILogger]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:25:32,843 INFO L146 ILogger]: Start difference. First operand 473 states and 495 transitions. Second operand 19 states. [2019-05-23 11:25:34,650 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:34,651 INFO L146 ILogger]: Finished difference Result 663 states and 689 transitions. [2019-05-23 11:25:34,651 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-05-23 11:25:34,651 INFO L146 ILogger]: Start accepts. Automaton has 19 states. Word has length 163 [2019-05-23 11:25:34,652 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:34,655 INFO L146 ILogger]: With dead ends: 663 [2019-05-23 11:25:34,655 INFO L146 ILogger]: Without dead ends: 467 [2019-05-23 11:25:34,657 INFO L146 ILogger]: 0 DeclaredPredicates, 201 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=257, Invalid=1149, Unknown=0, NotChecked=0, Total=1406 [2019-05-23 11:25:34,657 INFO L146 ILogger]: Start minimizeSevpa. Operand 467 states. [2019-05-23 11:25:34,667 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 467 to 312. [2019-05-23 11:25:34,667 INFO L146 ILogger]: Start removeUnreachable. Operand 312 states. [2019-05-23 11:25:34,668 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 312 states to 312 states and 324 transitions. [2019-05-23 11:25:34,668 INFO L146 ILogger]: Start accepts. Automaton has 312 states and 324 transitions. Word has length 163 [2019-05-23 11:25:34,668 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:34,669 INFO L146 ILogger]: Abstraction has 312 states and 324 transitions. [2019-05-23 11:25:34,669 INFO L146 ILogger]: Interpolant automaton has 19 states. [2019-05-23 11:25:34,669 INFO L146 ILogger]: Start isEmpty. Operand 312 states and 324 transitions. [2019-05-23 11:25:34,670 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 174 [2019-05-23 11:25:34,671 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:34,671 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:34,671 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:34,671 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:34,671 INFO L146 ILogger]: Analyzing trace with hash -1291808140, now seen corresponding path program 5 times [2019-05-23 11:25:34,672 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:34,672 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:34,672 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:34,673 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:34,673 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:34,698 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:35,258 INFO L146 ILogger]: Checked inductivity of 71 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:25:35,259 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:35,259 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:35,267 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:25:38,119 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2019-05-23 11:25:38,119 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:38,123 INFO L146 ILogger]: Trace formula consists of 251 conjuncts, 42 conjunts are in the unsatisfiable core [2019-05-23 11:25:38,127 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:38,249 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:25:38,249 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,257 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,258 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,258 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2019-05-23 11:25:38,319 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,320 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,321 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2019-05-23 11:25:38,321 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,327 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,328 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,328 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:22 [2019-05-23 11:25:38,361 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,362 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,362 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 28 [2019-05-23 11:25:38,362 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,374 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,375 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,375 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:22 [2019-05-23 11:25:38,380 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,380 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:38,381 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,389 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,390 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,390 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:25:38,394 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,395 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:25:38,395 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,403 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,403 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,403 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:16 [2019-05-23 11:25:38,447 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,448 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:38,448 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,458 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,458 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,459 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2019-05-23 11:25:38,498 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,499 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,500 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,501 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,502 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 11:25:38,502 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,513 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,514 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,514 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:34 [2019-05-23 11:25:38,528 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,529 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,530 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,531 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,531 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 11:25:38,532 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,554 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,555 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,555 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:34 [2019-05-23 11:25:38,560 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,560 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,561 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,562 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,562 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 11:25:38,563 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,573 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,574 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,574 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:34 [2019-05-23 11:25:38,622 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:38,624 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,624 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2019-05-23 11:25:38,625 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,633 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,633 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,634 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:25 [2019-05-23 11:25:38,960 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,960 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2019-05-23 11:25:38,960 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,963 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:38,963 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:38,963 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2019-05-23 11:25:39,071 INFO L146 ILogger]: Checked inductivity of 71 backedges. 12 proven. 56 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-05-23 11:25:39,090 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:39,091 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21] total 34 [2019-05-23 11:25:39,091 INFO L146 ILogger]: Interpolant automaton has 34 states [2019-05-23 11:25:39,092 INFO L146 ILogger]: Constructing interpolant automaton starting with 34 interpolants. [2019-05-23 11:25:39,092 INFO L146 ILogger]: CoverageRelationStatistics Valid=162, Invalid=960, Unknown=0, NotChecked=0, Total=1122 [2019-05-23 11:25:39,092 INFO L146 ILogger]: Start difference. First operand 312 states and 324 transitions. Second operand 34 states. [2019-05-23 11:25:41,715 WARN L146 ILogger]: Spent 425.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 29 [2019-05-23 11:25:42,383 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:42,383 INFO L146 ILogger]: Finished difference Result 652 states and 672 transitions. [2019-05-23 11:25:42,383 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-05-23 11:25:42,384 INFO L146 ILogger]: Start accepts. Automaton has 34 states. Word has length 173 [2019-05-23 11:25:42,384 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:42,386 INFO L146 ILogger]: With dead ends: 652 [2019-05-23 11:25:42,386 INFO L146 ILogger]: Without dead ends: 485 [2019-05-23 11:25:42,388 INFO L146 ILogger]: 0 DeclaredPredicates, 233 GetRequests, 166 SyntacticMatches, 11 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=540, Invalid=2766, Unknown=0, NotChecked=0, Total=3306 [2019-05-23 11:25:42,389 INFO L146 ILogger]: Start minimizeSevpa. Operand 485 states. [2019-05-23 11:25:42,400 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 485 to 342. [2019-05-23 11:25:42,400 INFO L146 ILogger]: Start removeUnreachable. Operand 342 states. [2019-05-23 11:25:42,401 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 342 states to 342 states and 352 transitions. [2019-05-23 11:25:42,402 INFO L146 ILogger]: Start accepts. Automaton has 342 states and 352 transitions. Word has length 173 [2019-05-23 11:25:42,402 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:42,402 INFO L146 ILogger]: Abstraction has 342 states and 352 transitions. [2019-05-23 11:25:42,402 INFO L146 ILogger]: Interpolant automaton has 34 states. [2019-05-23 11:25:42,402 INFO L146 ILogger]: Start isEmpty. Operand 342 states and 352 transitions. [2019-05-23 11:25:42,404 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 188 [2019-05-23 11:25:42,404 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:42,405 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:42,405 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:42,405 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:42,405 INFO L146 ILogger]: Analyzing trace with hash 1036096867, now seen corresponding path program 6 times [2019-05-23 11:25:42,405 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:42,406 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:42,406 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:42,406 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:42,407 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:42,428 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:42,900 INFO L146 ILogger]: Checked inductivity of 121 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-05-23 11:25:42,901 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:42,901 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:42,911 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:25:43,089 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2019-05-23 11:25:43,089 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:43,091 INFO L146 ILogger]: Trace formula consists of 270 conjuncts, 40 conjunts are in the unsatisfiable core [2019-05-23 11:25:43,094 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:43,205 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:25:43,206 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,214 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:43,214 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,214 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-05-23 11:25:43,277 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:43,278 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:43,278 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,285 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:43,286 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,286 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:19 [2019-05-23 11:25:43,290 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:43,291 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:43,291 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,300 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:43,301 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,301 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:19 [2019-05-23 11:25:43,309 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:43,310 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:25:43,310 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,318 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:43,319 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,319 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:19 [2019-05-23 11:25:43,324 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:43,325 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:25:43,325 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,340 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:43,341 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,341 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:13 [2019-05-23 11:25:43,578 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-05-23 11:25:43,579 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,580 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:43,580 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:43,580 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-05-23 11:25:43,670 INFO L146 ILogger]: Checked inductivity of 121 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-05-23 11:25:43,689 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:43,689 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 32 [2019-05-23 11:25:43,690 INFO L146 ILogger]: Interpolant automaton has 32 states [2019-05-23 11:25:43,690 INFO L146 ILogger]: Constructing interpolant automaton starting with 32 interpolants. [2019-05-23 11:25:43,691 INFO L146 ILogger]: CoverageRelationStatistics Valid=111, Invalid=881, Unknown=0, NotChecked=0, Total=992 [2019-05-23 11:25:43,691 INFO L146 ILogger]: Start difference. First operand 342 states and 352 transitions. Second operand 32 states. [2019-05-23 11:25:46,653 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:46,654 INFO L146 ILogger]: Finished difference Result 588 states and 606 transitions. [2019-05-23 11:25:46,654 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2019-05-23 11:25:46,654 INFO L146 ILogger]: Start accepts. Automaton has 32 states. Word has length 187 [2019-05-23 11:25:46,655 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:46,657 INFO L146 ILogger]: With dead ends: 588 [2019-05-23 11:25:46,658 INFO L146 ILogger]: Without dead ends: 586 [2019-05-23 11:25:46,660 INFO L146 ILogger]: 0 DeclaredPredicates, 270 GetRequests, 178 SyntacticMatches, 6 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2306 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=964, Invalid=6692, Unknown=0, NotChecked=0, Total=7656 [2019-05-23 11:25:46,661 INFO L146 ILogger]: Start minimizeSevpa. Operand 586 states. [2019-05-23 11:25:46,675 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 586 to 454. [2019-05-23 11:25:46,676 INFO L146 ILogger]: Start removeUnreachable. Operand 454 states. [2019-05-23 11:25:46,677 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 454 states to 454 states and 471 transitions. [2019-05-23 11:25:46,677 INFO L146 ILogger]: Start accepts. Automaton has 454 states and 471 transitions. Word has length 187 [2019-05-23 11:25:46,677 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:46,677 INFO L146 ILogger]: Abstraction has 454 states and 471 transitions. [2019-05-23 11:25:46,678 INFO L146 ILogger]: Interpolant automaton has 32 states. [2019-05-23 11:25:46,678 INFO L146 ILogger]: Start isEmpty. Operand 454 states and 471 transitions. [2019-05-23 11:25:46,679 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 192 [2019-05-23 11:25:46,680 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:46,680 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:46,680 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:46,680 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:46,681 INFO L146 ILogger]: Analyzing trace with hash -1210087548, now seen corresponding path program 7 times [2019-05-23 11:25:46,681 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:46,681 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:46,682 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:46,682 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:46,682 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:46,698 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:46,968 WARN L146 ILogger]: Spent 118.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2019-05-23 11:25:47,211 INFO L146 ILogger]: Checked inductivity of 90 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-05-23 11:25:47,212 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:47,212 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:47,220 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:47,265 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:47,266 INFO L146 ILogger]: Trace formula consists of 275 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:25:47,269 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:48,391 INFO L146 ILogger]: Checked inductivity of 90 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-05-23 11:25:48,452 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:48,452 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2019-05-23 11:25:48,453 INFO L146 ILogger]: Interpolant automaton has 18 states [2019-05-23 11:25:48,454 INFO L146 ILogger]: Constructing interpolant automaton starting with 18 interpolants. [2019-05-23 11:25:48,454 INFO L146 ILogger]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2019-05-23 11:25:48,454 INFO L146 ILogger]: Start difference. First operand 454 states and 471 transitions. Second operand 18 states. [2019-05-23 11:25:50,067 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:50,067 INFO L146 ILogger]: Finished difference Result 630 states and 653 transitions. [2019-05-23 11:25:50,067 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-05-23 11:25:50,067 INFO L146 ILogger]: Start accepts. Automaton has 18 states. Word has length 191 [2019-05-23 11:25:50,068 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:50,072 INFO L146 ILogger]: With dead ends: 630 [2019-05-23 11:25:50,072 INFO L146 ILogger]: Without dead ends: 521 [2019-05-23 11:25:50,073 INFO L146 ILogger]: 0 DeclaredPredicates, 230 GetRequests, 192 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=292, Invalid=1040, Unknown=0, NotChecked=0, Total=1332 [2019-05-23 11:25:50,074 INFO L146 ILogger]: Start minimizeSevpa. Operand 521 states. [2019-05-23 11:25:50,088 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 521 to 403. [2019-05-23 11:25:50,089 INFO L146 ILogger]: Start removeUnreachable. Operand 403 states. [2019-05-23 11:25:50,090 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 403 states to 403 states and 418 transitions. [2019-05-23 11:25:50,090 INFO L146 ILogger]: Start accepts. Automaton has 403 states and 418 transitions. Word has length 191 [2019-05-23 11:25:50,090 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:50,090 INFO L146 ILogger]: Abstraction has 403 states and 418 transitions. [2019-05-23 11:25:50,090 INFO L146 ILogger]: Interpolant automaton has 18 states. [2019-05-23 11:25:50,090 INFO L146 ILogger]: Start isEmpty. Operand 403 states and 418 transitions. [2019-05-23 11:25:50,092 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 200 [2019-05-23 11:25:50,092 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:50,092 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:50,092 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:50,092 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:50,093 INFO L146 ILogger]: Analyzing trace with hash -1057296058, now seen corresponding path program 8 times [2019-05-23 11:25:50,093 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:50,093 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:50,094 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:50,094 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:50,094 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:50,111 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:50,406 INFO L146 ILogger]: Checked inductivity of 70 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-05-23 11:25:50,407 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:50,407 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:50,415 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:25:50,469 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:25:50,469 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:50,470 INFO L146 ILogger]: Trace formula consists of 285 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:25:50,472 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:50,585 INFO L146 ILogger]: Checked inductivity of 70 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-05-23 11:25:50,603 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:50,603 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2019-05-23 11:25:50,603 INFO L146 ILogger]: Interpolant automaton has 18 states [2019-05-23 11:25:50,604 INFO L146 ILogger]: Constructing interpolant automaton starting with 18 interpolants. [2019-05-23 11:25:50,604 INFO L146 ILogger]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2019-05-23 11:25:50,604 INFO L146 ILogger]: Start difference. First operand 403 states and 418 transitions. Second operand 18 states. [2019-05-23 11:25:51,832 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:51,833 INFO L146 ILogger]: Finished difference Result 706 states and 735 transitions. [2019-05-23 11:25:51,833 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-05-23 11:25:51,833 INFO L146 ILogger]: Start accepts. Automaton has 18 states. Word has length 199 [2019-05-23 11:25:51,834 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:51,836 INFO L146 ILogger]: With dead ends: 706 [2019-05-23 11:25:51,836 INFO L146 ILogger]: Without dead ends: 507 [2019-05-23 11:25:51,837 INFO L146 ILogger]: 0 DeclaredPredicates, 227 GetRequests, 193 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=271, Invalid=785, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 11:25:51,838 INFO L146 ILogger]: Start minimizeSevpa. Operand 507 states. [2019-05-23 11:25:51,850 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 507 to 421. [2019-05-23 11:25:51,850 INFO L146 ILogger]: Start removeUnreachable. Operand 421 states. [2019-05-23 11:25:51,851 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 421 states to 421 states and 436 transitions. [2019-05-23 11:25:51,851 INFO L146 ILogger]: Start accepts. Automaton has 421 states and 436 transitions. Word has length 199 [2019-05-23 11:25:51,851 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:51,851 INFO L146 ILogger]: Abstraction has 421 states and 436 transitions. [2019-05-23 11:25:51,851 INFO L146 ILogger]: Interpolant automaton has 18 states. [2019-05-23 11:25:51,852 INFO L146 ILogger]: Start isEmpty. Operand 421 states and 436 transitions. [2019-05-23 11:25:51,853 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 202 [2019-05-23 11:25:51,853 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:51,853 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:51,853 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:51,854 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:51,854 INFO L146 ILogger]: Analyzing trace with hash -43038190, now seen corresponding path program 9 times [2019-05-23 11:25:51,854 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:51,854 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:51,855 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:51,855 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:51,855 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:51,873 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:52,283 WARN L146 ILogger]: Spent 247.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 9 [2019-05-23 11:25:52,573 WARN L146 ILogger]: Spent 240.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 5 [2019-05-23 11:25:53,423 INFO L146 ILogger]: Checked inductivity of 185 backedges. 127 proven. 54 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-05-23 11:25:53,423 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:53,423 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:53,432 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:25:53,660 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2019-05-23 11:25:53,661 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:53,662 INFO L146 ILogger]: Trace formula consists of 289 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 11:25:53,664 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:54,358 INFO L146 ILogger]: Checked inductivity of 185 backedges. 180 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-05-23 11:25:54,377 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:54,377 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2019-05-23 11:25:54,377 INFO L146 ILogger]: Interpolant automaton has 36 states [2019-05-23 11:25:54,378 INFO L146 ILogger]: Constructing interpolant automaton starting with 36 interpolants. [2019-05-23 11:25:54,378 INFO L146 ILogger]: CoverageRelationStatistics Valid=244, Invalid=1016, Unknown=0, NotChecked=0, Total=1260 [2019-05-23 11:25:54,378 INFO L146 ILogger]: Start difference. First operand 421 states and 436 transitions. Second operand 36 states. [2019-05-23 11:25:54,785 WARN L146 ILogger]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-05-23 11:25:55,251 WARN L146 ILogger]: Spent 241.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 12 [2019-05-23 11:25:56,614 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:56,615 INFO L146 ILogger]: Finished difference Result 534 states and 551 transitions. [2019-05-23 11:25:56,615 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-05-23 11:25:56,615 INFO L146 ILogger]: Start accepts. Automaton has 36 states. Word has length 201 [2019-05-23 11:25:56,616 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:56,617 INFO L146 ILogger]: With dead ends: 534 [2019-05-23 11:25:56,617 INFO L146 ILogger]: Without dead ends: 342 [2019-05-23 11:25:56,619 INFO L146 ILogger]: 0 DeclaredPredicates, 243 GetRequests, 185 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=627, Invalid=2565, Unknown=0, NotChecked=0, Total=3192 [2019-05-23 11:25:56,619 INFO L146 ILogger]: Start minimizeSevpa. Operand 342 states. [2019-05-23 11:25:56,627 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 342 to 294. [2019-05-23 11:25:56,627 INFO L146 ILogger]: Start removeUnreachable. Operand 294 states. [2019-05-23 11:25:56,628 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 294 states to 294 states and 307 transitions. [2019-05-23 11:25:56,628 INFO L146 ILogger]: Start accepts. Automaton has 294 states and 307 transitions. Word has length 201 [2019-05-23 11:25:56,629 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:56,629 INFO L146 ILogger]: Abstraction has 294 states and 307 transitions. [2019-05-23 11:25:56,629 INFO L146 ILogger]: Interpolant automaton has 36 states. [2019-05-23 11:25:56,629 INFO L146 ILogger]: Start isEmpty. Operand 294 states and 307 transitions. [2019-05-23 11:25:56,630 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 218 [2019-05-23 11:25:56,630 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:56,630 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:56,631 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:56,631 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:56,631 INFO L146 ILogger]: Analyzing trace with hash -500022026, now seen corresponding path program 10 times [2019-05-23 11:25:56,631 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:56,631 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:56,632 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:56,632 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:56,632 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:56,652 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:57,088 INFO L146 ILogger]: Checked inductivity of 89 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-05-23 11:25:57,089 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:57,089 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 11:25:57,096 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:25:57,134 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:25:57,134 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:57,135 INFO L146 ILogger]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:25:57,138 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:57,838 INFO L146 ILogger]: Checked inductivity of 89 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-05-23 11:25:57,856 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:57,856 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2019-05-23 11:25:57,857 INFO L146 ILogger]: Interpolant automaton has 19 states [2019-05-23 11:25:57,857 INFO L146 ILogger]: Constructing interpolant automaton starting with 19 interpolants. [2019-05-23 11:25:57,857 INFO L146 ILogger]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:25:57,858 INFO L146 ILogger]: Start difference. First operand 294 states and 307 transitions. Second operand 19 states. [2019-05-23 11:25:58,989 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:58,989 INFO L146 ILogger]: Finished difference Result 507 states and 531 transitions. [2019-05-23 11:25:58,990 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-05-23 11:25:58,990 INFO L146 ILogger]: Start accepts. Automaton has 19 states. Word has length 217 [2019-05-23 11:25:58,990 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:58,991 INFO L146 ILogger]: With dead ends: 507 [2019-05-23 11:25:58,991 INFO L146 ILogger]: Without dead ends: 328 [2019-05-23 11:25:58,992 INFO L146 ILogger]: 0 DeclaredPredicates, 241 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=179, Invalid=751, Unknown=0, NotChecked=0, Total=930 [2019-05-23 11:25:58,993 INFO L146 ILogger]: Start minimizeSevpa. Operand 328 states. [2019-05-23 11:25:59,001 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 328 to 312. [2019-05-23 11:25:59,001 INFO L146 ILogger]: Start removeUnreachable. Operand 312 states. [2019-05-23 11:25:59,002 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 312 states to 312 states and 325 transitions. [2019-05-23 11:25:59,002 INFO L146 ILogger]: Start accepts. Automaton has 312 states and 325 transitions. Word has length 217 [2019-05-23 11:25:59,003 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:59,003 INFO L146 ILogger]: Abstraction has 312 states and 325 transitions. [2019-05-23 11:25:59,003 INFO L146 ILogger]: Interpolant automaton has 19 states. [2019-05-23 11:25:59,003 INFO L146 ILogger]: Start isEmpty. Operand 312 states and 325 transitions. [2019-05-23 11:25:59,004 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 236 [2019-05-23 11:25:59,004 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:59,004 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:25:59,005 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:59,005 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:59,005 INFO L146 ILogger]: Analyzing trace with hash -1202084954, now seen corresponding path program 11 times [2019-05-23 11:25:59,005 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:59,005 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:59,006 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:59,006 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:25:59,006 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:59,052 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:00,095 INFO L146 ILogger]: Checked inductivity of 108 backedges. 4 proven. 41 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-05-23 11:26:00,096 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:00,096 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 11:26:00,103 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1