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/pr5_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:26:12,849 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:26:12,850 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:26:12,862 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:26:12,862 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:26:12,863 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:26:12,865 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:26:12,866 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:26:12,868 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:26:12,869 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:26:12,870 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:26:12,870 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:26:12,871 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:26:12,872 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:26:12,874 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:26:12,874 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:26:12,875 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:26:12,877 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:26:12,879 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:26:12,881 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:26:12,882 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:26:12,883 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:26:12,886 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:26:12,886 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:26:12,886 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:26:12,887 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:26:12,888 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:26:12,889 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:26:12,889 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:26:12,890 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:26:12,891 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:26:12,891 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:26:12,892 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:26:12,893 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:26:12,893 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:26:12,894 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:26:12,894 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:26:12,895 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:26:12,896 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:26:12,896 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:26:12,923 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:26:12,923 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:26:12,924 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:26:12,925 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:26:12,925 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:26:12,925 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:26:12,925 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:26:12,926 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:26:12,926 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:26:12,926 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:26:12,926 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:26:12,926 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:26:12,927 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:26:12,928 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:26:12,928 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:26:12,928 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:26:12,928 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:26:12,928 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:26:12,929 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:26:12,929 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:26:12,929 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:26:12,929 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:26:12,929 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:26:12,930 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:26:12,930 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:26:12,930 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:26:12,931 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:26:12,931 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:26:12,931 INFO L146 ILogger]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2019-05-23 11:26:12,971 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:26:12,987 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:26:12,991 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:26:12,993 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:26:12,993 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:26:12,994 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-tiling/pr5_true-unreach-call.i [2019-05-23 11:26:13,056 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75eccba5/57cc23aad17e46e2b6c3a2bc84a83259/FLAGd20110eff [2019-05-23 11:26:13,511 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:26:13,511 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-tiling/pr5_true-unreach-call.i [2019-05-23 11:26:13,523 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75eccba5/57cc23aad17e46e2b6c3a2bc84a83259/FLAGd20110eff [2019-05-23 11:26:13,904 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75eccba5/57cc23aad17e46e2b6c3a2bc84a83259 [2019-05-23 11:26:13,913 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:26:13,915 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:26:13,916 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:26:13,916 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:26:13,920 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:26:13,921 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:26:13" (1/1) ... [2019-05-23 11:26:13,924 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dcf5150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:13, skipping insertion in model container [2019-05-23 11:26:13,925 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:26:13" (1/1) ... [2019-05-23 11:26:13,932 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:26:13,955 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:26:14,129 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:26:14,134 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:26:14,190 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:26:14,224 INFO L146 ILogger]: Completed translation [2019-05-23 11:26:14,225 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:14 WrapperNode [2019-05-23 11:26:14,225 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:26:14,227 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:26:14,227 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:26:14,227 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:26:14,238 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:14" (1/1) ... [2019-05-23 11:26:14,258 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:14" (1/1) ... [2019-05-23 11:26:14,387 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:26:14,387 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:26:14,388 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:26:14,388 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:26:14,399 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:14" (1/1) ... [2019-05-23 11:26:14,400 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:14" (1/1) ... [2019-05-23 11:26:14,402 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:14" (1/1) ... [2019-05-23 11:26:14,402 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:14" (1/1) ... [2019-05-23 11:26:14,416 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:14" (1/1) ... [2019-05-23 11:26:14,429 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:14" (1/1) ... [2019-05-23 11:26:14,431 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:14" (1/1) ... [2019-05-23 11:26:14,438 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:26:14,438 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:26:14,438 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:26:14,439 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:26:14,439 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 [2019-05-23 11:26:14,508 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:26:14,508 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:26:14,508 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:26:14,508 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:26:14,508 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:26:14,509 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:26:15,068 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:26:15,068 INFO L146 ILogger]: Removed 8 assume(true) statements. [2019-05-23 11:26:15,070 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:26:15 BoogieIcfgContainer [2019-05-23 11:26:15,070 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:26:15,071 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:26:15,071 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:26:15,074 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:26:15,074 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:26:13" (1/3) ... [2019-05-23 11:26:15,075 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f5d170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:26:15, skipping insertion in model container [2019-05-23 11:26:15,075 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:26:14" (2/3) ... [2019-05-23 11:26:15,076 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f5d170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:26:15, skipping insertion in model container [2019-05-23 11:26:15,076 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:26:15" (3/3) ... [2019-05-23 11:26:15,078 INFO L146 ILogger]: Analyzing ICFG pr5_true-unreach-call.i [2019-05-23 11:26:15,087 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:26:15,097 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:26:15,113 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:26:15,143 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:26:15,144 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:26:15,144 INFO L146 ILogger]: Hoare is true [2019-05-23 11:26:15,144 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:26:15,144 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:26:15,144 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:26:15,144 INFO L146 ILogger]: Difference is false [2019-05-23 11:26:15,145 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:26:15,145 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:26:15,161 INFO L146 ILogger]: Start isEmpty. Operand 67 states. [2019-05-23 11:26:15,168 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 32 [2019-05-23 11:26:15,169 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:15,171 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:15,173 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:15,178 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:15,178 INFO L146 ILogger]: Analyzing trace with hash 172078993, now seen corresponding path program 1 times [2019-05-23 11:26:15,179 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:15,180 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:15,222 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:15,222 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:15,223 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:15,278 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:15,331 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:15,336 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:15,336 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:26:15,340 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:26:15,351 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:26:15,352 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:26:15,354 INFO L146 ILogger]: Start difference. First operand 67 states. Second operand 2 states. [2019-05-23 11:26:15,372 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:15,372 INFO L146 ILogger]: Finished difference Result 92 states and 107 transitions. [2019-05-23 11:26:15,373 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:26:15,374 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 31 [2019-05-23 11:26:15,374 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:15,384 INFO L146 ILogger]: With dead ends: 92 [2019-05-23 11:26:15,384 INFO L146 ILogger]: Without dead ends: 58 [2019-05-23 11:26:15,387 INFO L146 ILogger]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:26:15,405 INFO L146 ILogger]: Start minimizeSevpa. Operand 58 states. [2019-05-23 11:26:15,422 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-05-23 11:26:15,423 INFO L146 ILogger]: Start removeUnreachable. Operand 58 states. [2019-05-23 11:26:15,425 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2019-05-23 11:26:15,426 INFO L146 ILogger]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 31 [2019-05-23 11:26:15,427 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:15,427 INFO L146 ILogger]: Abstraction has 58 states and 65 transitions. [2019-05-23 11:26:15,427 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:26:15,427 INFO L146 ILogger]: Start isEmpty. Operand 58 states and 65 transitions. [2019-05-23 11:26:15,428 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 32 [2019-05-23 11:26:15,429 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:15,429 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:15,429 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:15,429 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:15,430 INFO L146 ILogger]: Analyzing trace with hash -1270553054, now seen corresponding path program 1 times [2019-05-23 11:26:15,430 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:15,430 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:15,431 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:15,431 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:15,431 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:15,463 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:15,591 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:15,592 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:15,592 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:26:15,594 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:26:15,595 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:26:15,595 INFO L146 ILogger]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:26:15,595 INFO L146 ILogger]: Start difference. First operand 58 states and 65 transitions. Second operand 5 states. [2019-05-23 11:26:15,854 WARN L146 ILogger]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-05-23 11:26:15,979 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:15,979 INFO L146 ILogger]: Finished difference Result 88 states and 97 transitions. [2019-05-23 11:26:15,979 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:26:15,979 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 31 [2019-05-23 11:26:15,980 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:15,981 INFO L146 ILogger]: With dead ends: 88 [2019-05-23 11:26:15,982 INFO L146 ILogger]: Without dead ends: 86 [2019-05-23 11:26:15,983 INFO L146 ILogger]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:26:15,984 INFO L146 ILogger]: Start minimizeSevpa. Operand 86 states. [2019-05-23 11:26:15,991 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 86 to 62. [2019-05-23 11:26:15,991 INFO L146 ILogger]: Start removeUnreachable. Operand 62 states. [2019-05-23 11:26:15,992 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2019-05-23 11:26:15,993 INFO L146 ILogger]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 31 [2019-05-23 11:26:15,993 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:15,993 INFO L146 ILogger]: Abstraction has 62 states and 69 transitions. [2019-05-23 11:26:15,993 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:26:15,994 INFO L146 ILogger]: Start isEmpty. Operand 62 states and 69 transitions. [2019-05-23 11:26:15,995 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 34 [2019-05-23 11:26:15,995 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:15,995 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] [2019-05-23 11:26:15,996 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:15,996 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:15,996 INFO L146 ILogger]: Analyzing trace with hash -495518209, now seen corresponding path program 1 times [2019-05-23 11:26:15,996 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:15,996 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:15,997 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:15,998 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:15,998 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:16,016 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:16,544 WARN L146 ILogger]: Spent 222.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 11 [2019-05-23 11:26:16,556 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:16,556 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:16,556 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:26:16,557 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:26:16,557 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:26:16,557 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:26:16,558 INFO L146 ILogger]: Start difference. First operand 62 states and 69 transitions. Second operand 5 states. [2019-05-23 11:26:16,719 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:16,719 INFO L146 ILogger]: Finished difference Result 103 states and 117 transitions. [2019-05-23 11:26:16,719 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:26:16,720 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 33 [2019-05-23 11:26:16,720 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:16,721 INFO L146 ILogger]: With dead ends: 103 [2019-05-23 11:26:16,721 INFO L146 ILogger]: Without dead ends: 80 [2019-05-23 11:26:16,722 INFO L146 ILogger]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:26:16,723 INFO L146 ILogger]: Start minimizeSevpa. Operand 80 states. [2019-05-23 11:26:16,730 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 80 to 63. [2019-05-23 11:26:16,730 INFO L146 ILogger]: Start removeUnreachable. Operand 63 states. [2019-05-23 11:26:16,731 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2019-05-23 11:26:16,732 INFO L146 ILogger]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 33 [2019-05-23 11:26:16,732 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:16,732 INFO L146 ILogger]: Abstraction has 63 states and 70 transitions. [2019-05-23 11:26:16,732 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:26:16,732 INFO L146 ILogger]: Start isEmpty. Operand 63 states and 70 transitions. [2019-05-23 11:26:16,734 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 48 [2019-05-23 11:26:16,734 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:16,734 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] [2019-05-23 11:26:16,734 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:16,735 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:16,735 INFO L146 ILogger]: Analyzing trace with hash 1811225434, now seen corresponding path program 1 times [2019-05-23 11:26:16,735 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:16,735 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:16,736 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:16,736 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:16,736 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:16,768 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:17,390 WARN L146 ILogger]: Spent 237.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 24 [2019-05-23 11:26:17,751 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:17,752 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:17,752 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:26:17,769 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:17,799 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:17,801 INFO L146 ILogger]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2019-05-23 11:26:17,808 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:17,953 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:26:17,954 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:17,968 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:17,969 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:17,969 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2019-05-23 11:26:18,037 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,038 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:18,039 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,088 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,089 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,089 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:19 [2019-05-23 11:26:18,104 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,107 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:18,108 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,146 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,147 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,147 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:19 [2019-05-23 11:26:18,159 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,160 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:18,161 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,194 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,195 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,195 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:19 [2019-05-23 11:26:18,206 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:18,207 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 11:26:18,207 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,216 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,217 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,217 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:11 [2019-05-23 11:26:18,304 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-05-23 11:26:18,306 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:18,309 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:18,309 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 11:26:18,310 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-05-23 11:26:18,341 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:18,368 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:18,368 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 20 [2019-05-23 11:26:18,369 INFO L146 ILogger]: Interpolant automaton has 20 states [2019-05-23 11:26:18,369 INFO L146 ILogger]: Constructing interpolant automaton starting with 20 interpolants. [2019-05-23 11:26:18,370 INFO L146 ILogger]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:26:18,370 INFO L146 ILogger]: Start difference. First operand 63 states and 70 transitions. Second operand 20 states. [2019-05-23 11:26:19,945 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:19,945 INFO L146 ILogger]: Finished difference Result 211 states and 236 transitions. [2019-05-23 11:26:19,946 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-05-23 11:26:19,946 INFO L146 ILogger]: Start accepts. Automaton has 20 states. Word has length 47 [2019-05-23 11:26:19,946 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:19,949 INFO L146 ILogger]: With dead ends: 211 [2019-05-23 11:26:19,950 INFO L146 ILogger]: Without dead ends: 189 [2019-05-23 11:26:19,951 INFO L146 ILogger]: 0 DeclaredPredicates, 79 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=277, Invalid=983, Unknown=0, NotChecked=0, Total=1260 [2019-05-23 11:26:19,952 INFO L146 ILogger]: Start minimizeSevpa. Operand 189 states. [2019-05-23 11:26:19,962 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 189 to 86. [2019-05-23 11:26:19,962 INFO L146 ILogger]: Start removeUnreachable. Operand 86 states. [2019-05-23 11:26:19,963 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 86 states to 86 states and 99 transitions. [2019-05-23 11:26:19,964 INFO L146 ILogger]: Start accepts. Automaton has 86 states and 99 transitions. Word has length 47 [2019-05-23 11:26:19,964 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:19,964 INFO L146 ILogger]: Abstraction has 86 states and 99 transitions. [2019-05-23 11:26:19,964 INFO L146 ILogger]: Interpolant automaton has 20 states. [2019-05-23 11:26:19,964 INFO L146 ILogger]: Start isEmpty. Operand 86 states and 99 transitions. [2019-05-23 11:26:19,966 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 48 [2019-05-23 11:26:19,966 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:19,966 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] [2019-05-23 11:26:19,966 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:19,967 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:19,967 INFO L146 ILogger]: Analyzing trace with hash -32375878, now seen corresponding path program 1 times [2019-05-23 11:26:19,967 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:19,967 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:19,968 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:19,968 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:19,968 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:19,985 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:20,063 INFO L146 ILogger]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:20,063 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:20,063 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:26:20,064 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:26:20,064 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:26:20,064 INFO L146 ILogger]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:26:20,064 INFO L146 ILogger]: Start difference. First operand 86 states and 99 transitions. Second operand 5 states. [2019-05-23 11:26:20,123 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:20,123 INFO L146 ILogger]: Finished difference Result 168 states and 195 transitions. [2019-05-23 11:26:20,130 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:26:20,130 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 47 [2019-05-23 11:26:20,130 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:20,131 INFO L146 ILogger]: With dead ends: 168 [2019-05-23 11:26:20,132 INFO L146 ILogger]: Without dead ends: 126 [2019-05-23 11:26:20,132 INFO L146 ILogger]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:26:20,133 INFO L146 ILogger]: Start minimizeSevpa. Operand 126 states. [2019-05-23 11:26:20,139 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 126 to 103. [2019-05-23 11:26:20,140 INFO L146 ILogger]: Start removeUnreachable. Operand 103 states. [2019-05-23 11:26:20,144 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 103 states to 103 states and 121 transitions. [2019-05-23 11:26:20,144 INFO L146 ILogger]: Start accepts. Automaton has 103 states and 121 transitions. Word has length 47 [2019-05-23 11:26:20,144 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:20,144 INFO L146 ILogger]: Abstraction has 103 states and 121 transitions. [2019-05-23 11:26:20,145 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:26:20,145 INFO L146 ILogger]: Start isEmpty. Operand 103 states and 121 transitions. [2019-05-23 11:26:20,146 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 48 [2019-05-23 11:26:20,146 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:20,147 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] [2019-05-23 11:26:20,147 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:20,147 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:20,147 INFO L146 ILogger]: Analyzing trace with hash 1036336154, now seen corresponding path program 1 times [2019-05-23 11:26:20,148 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:20,148 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:20,149 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:20,150 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:20,150 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:20,194 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:20,461 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:20,461 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:20,461 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:26:20,477 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:20,505 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:20,506 INFO L146 ILogger]: Trace formula consists of 77 conjuncts, 23 conjunts are in the unsatisfiable core [2019-05-23 11:26:20,509 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:20,664 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:26:20,664 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:20,669 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:20,670 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:20,670 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-05-23 11:26:20,724 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2019-05-23 11:26:20,728 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,737 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,746 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,747 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2019-05-23 11:26:20,748 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:20,752 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:20,752 INFO L146 ILogger]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:20,762 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:20,763 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 11:26:20,764 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:19 [2019-05-23 11:26:20,831 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2019-05-23 11:26:20,834 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,835 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,836 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,839 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,841 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2019-05-23 11:26:20,842 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:20,849 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:20,850 INFO L146 ILogger]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:20,886 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:20,887 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:20,887 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:19 [2019-05-23 11:26:20,916 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2019-05-23 11:26:20,921 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,923 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,925 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,926 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,928 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2019-05-23 11:26:20,929 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:20,933 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:20,934 INFO L146 ILogger]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:20,954 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:20,954 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:20,955 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:19 [2019-05-23 11:26:20,986 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 26 treesize of output 21 [2019-05-23 11:26:20,992 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,993 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,994 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,995 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:20,996 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2019-05-23 11:26:20,997 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:21,002 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:21,002 INFO L146 ILogger]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:21,026 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:21,027 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:21,027 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:20 [2019-05-23 11:26:21,112 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:21,113 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2019-05-23 11:26:21,113 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:21,114 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:21,114 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:21,115 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:3 [2019-05-23 11:26:21,137 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:21,156 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:21,157 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 16 [2019-05-23 11:26:21,157 INFO L146 ILogger]: Interpolant automaton has 16 states [2019-05-23 11:26:21,157 INFO L146 ILogger]: Constructing interpolant automaton starting with 16 interpolants. [2019-05-23 11:26:21,158 INFO L146 ILogger]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:26:21,158 INFO L146 ILogger]: Start difference. First operand 103 states and 121 transitions. Second operand 16 states. [2019-05-23 11:26:22,433 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:22,433 INFO L146 ILogger]: Finished difference Result 223 states and 254 transitions. [2019-05-23 11:26:22,434 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-05-23 11:26:22,434 INFO L146 ILogger]: Start accepts. Automaton has 16 states. Word has length 47 [2019-05-23 11:26:22,435 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:22,436 INFO L146 ILogger]: With dead ends: 223 [2019-05-23 11:26:22,436 INFO L146 ILogger]: Without dead ends: 221 [2019-05-23 11:26:22,437 INFO L146 ILogger]: 0 DeclaredPredicates, 89 GetRequests, 35 SyntacticMatches, 12 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=429, Invalid=1463, Unknown=0, NotChecked=0, Total=1892 [2019-05-23 11:26:22,438 INFO L146 ILogger]: Start minimizeSevpa. Operand 221 states. [2019-05-23 11:26:22,447 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 221 to 127. [2019-05-23 11:26:22,448 INFO L146 ILogger]: Start removeUnreachable. Operand 127 states. [2019-05-23 11:26:22,449 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 127 states to 127 states and 151 transitions. [2019-05-23 11:26:22,449 INFO L146 ILogger]: Start accepts. Automaton has 127 states and 151 transitions. Word has length 47 [2019-05-23 11:26:22,449 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:22,449 INFO L146 ILogger]: Abstraction has 127 states and 151 transitions. [2019-05-23 11:26:22,449 INFO L146 ILogger]: Interpolant automaton has 16 states. [2019-05-23 11:26:22,449 INFO L146 ILogger]: Start isEmpty. Operand 127 states and 151 transitions. [2019-05-23 11:26:22,451 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:26:22,451 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:22,452 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] [2019-05-23 11:26:22,452 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:22,452 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:22,452 INFO L146 ILogger]: Analyzing trace with hash 999075433, now seen corresponding path program 1 times [2019-05-23 11:26:22,453 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:22,453 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:22,454 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:22,454 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:22,454 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:22,469 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:22,710 INFO L146 ILogger]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:22,711 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:22,711 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:26:22,724 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:22,741 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:22,742 INFO L146 ILogger]: Trace formula consists of 96 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 11:26:22,746 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:22,909 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:26:22,909 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:23,044 WARN L146 ILogger]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2019-05-23 11:26:23,045 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:23,045 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:23,046 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2019-05-23 11:26:23,159 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:23,160 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:23,161 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:23,172 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:23,173 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:23,173 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:26:23,181 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:23,182 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:23,183 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:23,196 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:23,196 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:23,197 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:26:23,231 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:23,232 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:26:23,233 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:23,244 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:23,245 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:23,245 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:16 [2019-05-23 11:26:23,350 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-05-23 11:26:23,351 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:23,354 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:23,354 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:23,354 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:7 [2019-05-23 11:26:23,390 INFO L146 ILogger]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:23,409 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:23,409 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 24 [2019-05-23 11:26:23,409 INFO L146 ILogger]: Interpolant automaton has 24 states [2019-05-23 11:26:23,410 INFO L146 ILogger]: Constructing interpolant automaton starting with 24 interpolants. [2019-05-23 11:26:23,410 INFO L146 ILogger]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2019-05-23 11:26:23,412 INFO L146 ILogger]: Start difference. First operand 127 states and 151 transitions. Second operand 24 states. [2019-05-23 11:26:25,580 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:25,580 INFO L146 ILogger]: Finished difference Result 399 states and 460 transitions. [2019-05-23 11:26:25,583 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-05-23 11:26:25,583 INFO L146 ILogger]: Start accepts. Automaton has 24 states. Word has length 61 [2019-05-23 11:26:25,583 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:25,585 INFO L146 ILogger]: With dead ends: 399 [2019-05-23 11:26:25,585 INFO L146 ILogger]: Without dead ends: 321 [2019-05-23 11:26:25,587 INFO L146 ILogger]: 0 DeclaredPredicates, 101 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=514, Invalid=1838, Unknown=0, NotChecked=0, Total=2352 [2019-05-23 11:26:25,588 INFO L146 ILogger]: Start minimizeSevpa. Operand 321 states. [2019-05-23 11:26:25,598 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 321 to 167. [2019-05-23 11:26:25,598 INFO L146 ILogger]: Start removeUnreachable. Operand 167 states. [2019-05-23 11:26:25,599 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 167 states to 167 states and 195 transitions. [2019-05-23 11:26:25,600 INFO L146 ILogger]: Start accepts. Automaton has 167 states and 195 transitions. Word has length 61 [2019-05-23 11:26:25,600 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:25,600 INFO L146 ILogger]: Abstraction has 167 states and 195 transitions. [2019-05-23 11:26:25,600 INFO L146 ILogger]: Interpolant automaton has 24 states. [2019-05-23 11:26:25,600 INFO L146 ILogger]: Start isEmpty. Operand 167 states and 195 transitions. [2019-05-23 11:26:25,602 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:26:25,602 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:25,602 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:25,603 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:25,603 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:25,603 INFO L146 ILogger]: Analyzing trace with hash 1291533685, now seen corresponding path program 2 times [2019-05-23 11:26:25,603 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:25,603 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:25,604 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:25,604 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:25,604 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:25,635 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:26,185 INFO L146 ILogger]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:26,185 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:26,185 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:26:26,194 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:26:26,236 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:26:26,236 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:26,237 INFO L146 ILogger]: Trace formula consists of 93 conjuncts, 26 conjunts are in the unsatisfiable core [2019-05-23 11:26:26,241 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:26,456 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:26:26,456 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:26,468 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:26,468 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:26,469 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2019-05-23 11:26:26,545 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,547 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:26,547 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:26,561 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:26,562 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:26,562 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:37 [2019-05-23 11:26:26,622 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,639 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,641 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,641 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:26,642 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2019-05-23 11:26:26,643 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:26,683 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:26,683 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:26,684 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:49 [2019-05-23 11:26:26,741 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,742 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,744 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,745 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,747 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,748 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,750 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:26,751 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 58 [2019-05-23 11:26:26,752 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:26,773 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:26,773 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:26,774 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:61 [2019-05-23 11:26:26,924 WARN L146 ILogger]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-05-23 11:26:26,985 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,987 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,988 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,990 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,991 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,992 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,993 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,995 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,996 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,997 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:26,998 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:26,999 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2019-05-23 11:26:27,000 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,023 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,024 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,024 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:80, output treesize:76 [2019-05-23 11:26:27,222 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,223 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,261 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,262 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,263 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,264 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,265 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,266 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,271 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,272 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,272 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,273 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,274 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,275 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,276 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,277 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,278 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 71 [2019-05-23 11:26:27,279 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,299 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,299 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,300 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:72 [2019-05-23 11:26:27,412 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,413 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,414 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,415 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,416 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,420 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,421 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,422 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,423 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,424 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,425 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,426 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,427 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,429 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,430 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,431 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,432 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,433 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,435 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,436 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,437 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,438 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,439 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 73 treesize of output 83 [2019-05-23 11:26:27,440 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,467 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,468 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,468 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:85, output treesize:81 [2019-05-23 11:26:27,553 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,554 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,556 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,558 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,559 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,560 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,564 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,565 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,565 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,566 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,567 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,568 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,570 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,571 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,573 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,574 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,575 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,577 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,578 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,580 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,581 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,582 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,584 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,585 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,586 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,587 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,589 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,590 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,592 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,592 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 82 treesize of output 95 [2019-05-23 11:26:27,594 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,626 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,626 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,627 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:94, output treesize:90 [2019-05-23 11:26:27,727 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,728 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,729 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,731 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,732 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,733 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,734 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,735 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,737 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,738 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,738 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,739 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,740 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,741 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,742 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,743 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,745 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,746 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,747 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,748 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,749 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,750 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,751 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,753 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,754 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,755 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,756 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,757 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,759 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,760 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,761 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,762 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,763 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,764 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,765 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,766 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,768 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,768 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 91 treesize of output 107 [2019-05-23 11:26:27,770 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,794 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,795 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,795 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:103, output treesize:104 [2019-05-23 11:26:27,868 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,869 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,870 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,871 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,872 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,873 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,876 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,877 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,878 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,879 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,880 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,881 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,882 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,883 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,884 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,885 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,886 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,888 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,889 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,890 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,891 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,892 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,893 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,894 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,895 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,896 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,897 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,898 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,899 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,900 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,901 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,903 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,904 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,905 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,906 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,907 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,908 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,909 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,910 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,911 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,912 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,913 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,914 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,915 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,916 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:27,918 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,918 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 123 treesize of output 125 [2019-05-23 11:26:27,919 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:27,944 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:27,946 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:26:27,946 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:129, output treesize:125 [2019-05-23 11:26:28,587 INFO L146 ILogger]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:28,605 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:28,605 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 22] total 33 [2019-05-23 11:26:28,606 INFO L146 ILogger]: Interpolant automaton has 33 states [2019-05-23 11:26:28,606 INFO L146 ILogger]: Constructing interpolant automaton starting with 33 interpolants. [2019-05-23 11:26:28,606 INFO L146 ILogger]: CoverageRelationStatistics Valid=171, Invalid=885, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 11:26:28,607 INFO L146 ILogger]: Start difference. First operand 167 states and 195 transitions. Second operand 33 states. [2019-05-23 11:26:29,849 WARN L146 ILogger]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2019-05-23 11:26:31,526 WARN L146 ILogger]: Spent 122.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-05-23 11:26:31,784 WARN L146 ILogger]: Spent 122.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2019-05-23 11:26:33,354 WARN L146 ILogger]: Spent 105.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-05-23 11:26:33,830 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:33,830 INFO L146 ILogger]: Finished difference Result 475 states and 547 transitions. [2019-05-23 11:26:33,831 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-05-23 11:26:33,831 INFO L146 ILogger]: Start accepts. Automaton has 33 states. Word has length 61 [2019-05-23 11:26:33,832 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:33,834 INFO L146 ILogger]: With dead ends: 475 [2019-05-23 11:26:33,835 INFO L146 ILogger]: Without dead ends: 394 [2019-05-23 11:26:33,837 INFO L146 ILogger]: 0 DeclaredPredicates, 126 GetRequests, 44 SyntacticMatches, 8 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1538 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=958, Invalid=4742, Unknown=0, NotChecked=0, Total=5700 [2019-05-23 11:26:33,838 INFO L146 ILogger]: Start minimizeSevpa. Operand 394 states. [2019-05-23 11:26:33,848 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 394 to 202. [2019-05-23 11:26:33,848 INFO L146 ILogger]: Start removeUnreachable. Operand 202 states. [2019-05-23 11:26:33,849 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 202 states to 202 states and 239 transitions. [2019-05-23 11:26:33,850 INFO L146 ILogger]: Start accepts. Automaton has 202 states and 239 transitions. Word has length 61 [2019-05-23 11:26:33,850 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:33,850 INFO L146 ILogger]: Abstraction has 202 states and 239 transitions. [2019-05-23 11:26:33,850 INFO L146 ILogger]: Interpolant automaton has 33 states. [2019-05-23 11:26:33,850 INFO L146 ILogger]: Start isEmpty. Operand 202 states and 239 transitions. [2019-05-23 11:26:33,852 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:26:33,852 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:33,852 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:33,853 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:33,853 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:33,853 INFO L146 ILogger]: Analyzing trace with hash 608589269, now seen corresponding path program 1 times [2019-05-23 11:26:33,853 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:33,853 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:33,854 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:33,854 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:26:33,854 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:33,866 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:33,931 INFO L146 ILogger]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:33,932 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:33,932 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:26:33,933 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:26:33,933 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:26:33,933 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:33,933 INFO L146 ILogger]: Start difference. First operand 202 states and 239 transitions. Second operand 3 states. [2019-05-23 11:26:34,281 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:34,281 INFO L146 ILogger]: Finished difference Result 375 states and 438 transitions. [2019-05-23 11:26:34,282 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:26:34,282 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 61 [2019-05-23 11:26:34,282 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:34,284 INFO L146 ILogger]: With dead ends: 375 [2019-05-23 11:26:34,284 INFO L146 ILogger]: Without dead ends: 294 [2019-05-23 11:26:34,285 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:34,285 INFO L146 ILogger]: Start minimizeSevpa. Operand 294 states. [2019-05-23 11:26:34,302 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 294 to 205. [2019-05-23 11:26:34,302 INFO L146 ILogger]: Start removeUnreachable. Operand 205 states. [2019-05-23 11:26:34,304 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 205 states to 205 states and 243 transitions. [2019-05-23 11:26:34,304 INFO L146 ILogger]: Start accepts. Automaton has 205 states and 243 transitions. Word has length 61 [2019-05-23 11:26:34,304 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:34,304 INFO L146 ILogger]: Abstraction has 205 states and 243 transitions. [2019-05-23 11:26:34,305 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:26:34,305 INFO L146 ILogger]: Start isEmpty. Operand 205 states and 243 transitions. [2019-05-23 11:26:34,306 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:26:34,306 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:34,306 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:34,310 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:34,310 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:34,310 INFO L146 ILogger]: Analyzing trace with hash 1677301301, now seen corresponding path program 1 times [2019-05-23 11:26:34,310 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:34,310 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:34,311 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:34,311 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:34,321 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:34,339 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:34,887 WARN L146 ILogger]: Spent 240.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 [2019-05-23 11:26:35,143 WARN L146 ILogger]: Spent 149.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 24 [2019-05-23 11:26:35,637 INFO L146 ILogger]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:35,637 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:35,637 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:26:35,647 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:35,666 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:35,666 INFO L146 ILogger]: Trace formula consists of 93 conjuncts, 22 conjunts are in the unsatisfiable core [2019-05-23 11:26:35,669 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:35,680 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:26:35,681 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:35,691 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:35,691 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:35,692 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-05-23 11:26:35,726 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2019-05-23 11:26:35,739 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,740 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,742 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,743 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2019-05-23 11:26:35,744 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:35,749 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:35,749 INFO L146 ILogger]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:35,760 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:35,760 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:35,761 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 1 variables, input treesize:46, output treesize:34 [2019-05-23 11:26:35,786 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,788 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,789 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,790 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:35,790 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2019-05-23 11:26:35,791 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:35,802 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:35,802 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:35,802 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2019-05-23 11:26:35,834 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,836 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,837 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,846 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,846 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,847 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,848 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:35,848 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 58 [2019-05-23 11:26:35,849 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:35,865 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:35,865 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:35,865 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:58 [2019-05-23 11:26:35,904 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,905 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,906 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,907 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,908 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,909 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,910 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,913 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,914 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,915 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:35,915 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:35,916 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2019-05-23 11:26:35,916 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:35,934 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:35,935 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:35,935 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:70 [2019-05-23 11:26:36,081 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,082 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,083 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,084 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,085 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,086 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,087 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,088 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,091 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,092 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,093 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,093 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,094 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,095 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,095 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,096 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:36,096 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 71 [2019-05-23 11:26:36,097 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:36,115 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:36,116 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:36,116 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:66 [2019-05-23 11:26:36,169 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,170 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,171 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,173 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,174 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,175 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,176 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,176 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,177 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,201 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,202 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,202 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,203 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,204 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,204 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,205 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,206 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,207 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,207 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,208 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,209 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,210 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:36,211 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 73 treesize of output 83 [2019-05-23 11:26:36,212 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:36,229 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:36,230 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:36,230 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2019-05-23 11:26:36,276 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,277 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,277 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,278 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,279 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,280 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,281 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,282 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,283 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,284 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,285 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,286 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,287 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,288 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,289 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,290 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,291 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,292 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,294 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,295 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,296 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,297 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,298 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,299 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,302 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,302 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,303 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,304 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,304 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:36,305 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 82 treesize of output 95 [2019-05-23 11:26:36,305 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:36,323 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:36,324 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:36,324 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:88, output treesize:84 [2019-05-23 11:26:36,381 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,382 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,385 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,386 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,387 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,389 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,390 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,391 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,401 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,402 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,402 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,403 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,403 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,404 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,405 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,405 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,407 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,408 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,409 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,410 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,411 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,412 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,413 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,414 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,415 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,416 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,417 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,418 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,419 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,420 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,421 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,422 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,423 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,424 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,425 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,426 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,427 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:36,427 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 91 treesize of output 107 [2019-05-23 11:26:36,428 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:36,447 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:36,447 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:36,448 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:98 [2019-05-23 11:26:36,513 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,514 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,515 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,515 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,516 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,517 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,518 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,519 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,520 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,521 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,522 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,523 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,525 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,526 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,527 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,528 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,529 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,530 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,531 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,532 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,533 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,534 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,535 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,536 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,537 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,538 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,539 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,540 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,541 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,542 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,543 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,544 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,545 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,546 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,547 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,548 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,549 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,550 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,551 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,552 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,554 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,555 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,564 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,565 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,565 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,566 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:36,566 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 108 treesize of output 122 [2019-05-23 11:26:36,567 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:36,656 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:36,657 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:26:36,657 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:114, output treesize:110 [2019-05-23 11:26:36,774 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,774 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,776 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,777 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,784 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,784 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,785 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,786 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,786 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,787 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,788 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,789 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,790 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,791 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,792 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,792 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,793 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,794 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,795 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,796 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,797 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,798 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,799 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,800 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,816 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,817 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,818 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,818 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,819 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,820 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,821 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,822 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,823 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,824 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,825 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:36,826 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:36,827 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 97 treesize of output 25 [2019-05-23 11:26:36,828 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:36,839 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:36,839 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:36,839 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:100, output treesize:3 [2019-05-23 11:26:36,890 INFO L146 ILogger]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:36,910 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:36,910 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 20] total 26 [2019-05-23 11:26:36,910 INFO L146 ILogger]: Interpolant automaton has 26 states [2019-05-23 11:26:36,911 INFO L146 ILogger]: Constructing interpolant automaton starting with 26 interpolants. [2019-05-23 11:26:36,911 INFO L146 ILogger]: CoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-05-23 11:26:36,911 INFO L146 ILogger]: Start difference. First operand 205 states and 243 transitions. Second operand 26 states. [2019-05-23 11:26:37,775 WARN L146 ILogger]: Spent 146.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2019-05-23 11:26:39,187 WARN L146 ILogger]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-05-23 11:26:41,148 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:41,148 INFO L146 ILogger]: Finished difference Result 532 states and 607 transitions. [2019-05-23 11:26:41,149 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-05-23 11:26:41,149 INFO L146 ILogger]: Start accepts. Automaton has 26 states. Word has length 61 [2019-05-23 11:26:41,149 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:41,152 INFO L146 ILogger]: With dead ends: 532 [2019-05-23 11:26:41,152 INFO L146 ILogger]: Without dead ends: 468 [2019-05-23 11:26:41,154 INFO L146 ILogger]: 0 DeclaredPredicates, 118 GetRequests, 46 SyntacticMatches, 11 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1030 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=600, Invalid=3306, Unknown=0, NotChecked=0, Total=3906 [2019-05-23 11:26:41,155 INFO L146 ILogger]: Start minimizeSevpa. Operand 468 states. [2019-05-23 11:26:41,166 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 468 to 237. [2019-05-23 11:26:41,166 INFO L146 ILogger]: Start removeUnreachable. Operand 237 states. [2019-05-23 11:26:41,167 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 237 states to 237 states and 281 transitions. [2019-05-23 11:26:41,167 INFO L146 ILogger]: Start accepts. Automaton has 237 states and 281 transitions. Word has length 61 [2019-05-23 11:26:41,168 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:41,168 INFO L146 ILogger]: Abstraction has 237 states and 281 transitions. [2019-05-23 11:26:41,168 INFO L146 ILogger]: Interpolant automaton has 26 states. [2019-05-23 11:26:41,168 INFO L146 ILogger]: Start isEmpty. Operand 237 states and 281 transitions. [2019-05-23 11:26:41,169 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:26:41,169 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:41,169 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] [2019-05-23 11:26:41,170 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:41,170 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:41,170 INFO L146 ILogger]: Analyzing trace with hash 1932820265, now seen corresponding path program 1 times [2019-05-23 11:26:41,170 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:41,170 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:41,171 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:41,171 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:41,171 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:41,181 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:41,574 INFO L146 ILogger]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:41,574 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:41,574 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:26:41,583 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:41,610 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:41,611 INFO L146 ILogger]: Trace formula consists of 96 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:26:41,613 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:41,687 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:26:41,688 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:41,711 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:41,711 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:41,712 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2019-05-23 11:26:41,733 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:41,734 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:41,735 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:41,744 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:41,745 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:41,745 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:19 [2019-05-23 11:26:41,772 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:41,772 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:41,773 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:41,780 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:41,781 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:41,781 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:19 [2019-05-23 11:26:41,785 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:41,786 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:26:41,786 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:41,793 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:41,793 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:41,794 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-05-23 11:26:41,907 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:41,907 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2019-05-23 11:26:41,907 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:41,909 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:41,909 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:41,909 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:3 [2019-05-23 11:26:41,933 INFO L146 ILogger]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:41,953 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:41,954 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2019-05-23 11:26:41,954 INFO L146 ILogger]: Interpolant automaton has 22 states [2019-05-23 11:26:41,954 INFO L146 ILogger]: Constructing interpolant automaton starting with 22 interpolants. [2019-05-23 11:26:41,955 INFO L146 ILogger]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-05-23 11:26:41,955 INFO L146 ILogger]: Start difference. First operand 237 states and 281 transitions. Second operand 22 states. [2019-05-23 11:26:44,653 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:44,653 INFO L146 ILogger]: Finished difference Result 575 states and 645 transitions. [2019-05-23 11:26:44,653 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-05-23 11:26:44,654 INFO L146 ILogger]: Start accepts. Automaton has 22 states. Word has length 61 [2019-05-23 11:26:44,654 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:44,656 INFO L146 ILogger]: With dead ends: 575 [2019-05-23 11:26:44,656 INFO L146 ILogger]: Without dead ends: 553 [2019-05-23 11:26:44,657 INFO L146 ILogger]: 0 DeclaredPredicates, 115 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 779 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=694, Invalid=2966, Unknown=0, NotChecked=0, Total=3660 [2019-05-23 11:26:44,657 INFO L146 ILogger]: Start minimizeSevpa. Operand 553 states. [2019-05-23 11:26:44,668 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 553 to 259. [2019-05-23 11:26:44,669 INFO L146 ILogger]: Start removeUnreachable. Operand 259 states. [2019-05-23 11:26:44,669 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 259 states to 259 states and 308 transitions. [2019-05-23 11:26:44,670 INFO L146 ILogger]: Start accepts. Automaton has 259 states and 308 transitions. Word has length 61 [2019-05-23 11:26:44,670 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:44,670 INFO L146 ILogger]: Abstraction has 259 states and 308 transitions. [2019-05-23 11:26:44,670 INFO L146 ILogger]: Interpolant automaton has 22 states. [2019-05-23 11:26:44,670 INFO L146 ILogger]: Start isEmpty. Operand 259 states and 308 transitions. [2019-05-23 11:26:44,671 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:26:44,671 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:44,671 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:44,672 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:44,672 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:44,672 INFO L146 ILogger]: Analyzing trace with hash -1000976747, now seen corresponding path program 1 times [2019-05-23 11:26:44,672 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:44,672 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:44,673 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:44,673 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:44,673 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:44,679 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:44,702 INFO L146 ILogger]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:44,702 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:44,702 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:26:44,702 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:26:44,703 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:26:44,703 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:44,703 INFO L146 ILogger]: Start difference. First operand 259 states and 308 transitions. Second operand 3 states. [2019-05-23 11:26:44,751 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:44,751 INFO L146 ILogger]: Finished difference Result 385 states and 448 transitions. [2019-05-23 11:26:44,754 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:26:44,754 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 61 [2019-05-23 11:26:44,754 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:44,755 INFO L146 ILogger]: With dead ends: 385 [2019-05-23 11:26:44,756 INFO L146 ILogger]: Without dead ends: 302 [2019-05-23 11:26:44,756 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:44,757 INFO L146 ILogger]: Start minimizeSevpa. Operand 302 states. [2019-05-23 11:26:44,766 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 302 to 255. [2019-05-23 11:26:44,767 INFO L146 ILogger]: Start removeUnreachable. Operand 255 states. [2019-05-23 11:26:44,767 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 255 states to 255 states and 301 transitions. [2019-05-23 11:26:44,768 INFO L146 ILogger]: Start accepts. Automaton has 255 states and 301 transitions. Word has length 61 [2019-05-23 11:26:44,768 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:44,768 INFO L146 ILogger]: Abstraction has 255 states and 301 transitions. [2019-05-23 11:26:44,768 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:26:44,768 INFO L146 ILogger]: Start isEmpty. Operand 255 states and 301 transitions. [2019-05-23 11:26:44,769 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:26:44,769 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:44,769 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] [2019-05-23 11:26:44,769 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:44,770 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:44,770 INFO L146 ILogger]: Analyzing trace with hash -769405047, now seen corresponding path program 1 times [2019-05-23 11:26:44,770 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:44,770 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:44,771 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:44,771 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:44,771 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:44,786 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:45,005 INFO L146 ILogger]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-05-23 11:26:45,005 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:45,006 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:26:45,006 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:26:45,006 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:26:45,007 INFO L146 ILogger]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:26:45,007 INFO L146 ILogger]: Start difference. First operand 255 states and 301 transitions. Second operand 5 states. [2019-05-23 11:26:45,604 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:45,604 INFO L146 ILogger]: Finished difference Result 345 states and 403 transitions. [2019-05-23 11:26:45,605 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:26:45,605 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 61 [2019-05-23 11:26:45,605 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:45,607 INFO L146 ILogger]: With dead ends: 345 [2019-05-23 11:26:45,607 INFO L146 ILogger]: Without dead ends: 299 [2019-05-23 11:26:45,607 INFO L146 ILogger]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:26:45,609 INFO L146 ILogger]: Start minimizeSevpa. Operand 299 states. [2019-05-23 11:26:45,619 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 299 to 270. [2019-05-23 11:26:45,619 INFO L146 ILogger]: Start removeUnreachable. Operand 270 states. [2019-05-23 11:26:45,620 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 270 states to 270 states and 319 transitions. [2019-05-23 11:26:45,620 INFO L146 ILogger]: Start accepts. Automaton has 270 states and 319 transitions. Word has length 61 [2019-05-23 11:26:45,621 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:45,621 INFO L146 ILogger]: Abstraction has 270 states and 319 transitions. [2019-05-23 11:26:45,621 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:26:45,621 INFO L146 ILogger]: Start isEmpty. Operand 270 states and 319 transitions. [2019-05-23 11:26:45,622 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:26:45,622 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:45,622 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] [2019-05-23 11:26:45,622 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:45,622 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:45,623 INFO L146 ILogger]: Analyzing trace with hash 51007465, now seen corresponding path program 1 times [2019-05-23 11:26:45,623 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:45,623 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:45,624 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:45,624 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:45,624 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:45,636 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:46,766 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:46,767 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:46,767 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:26:46,778 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:46,795 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:46,796 INFO L146 ILogger]: Trace formula consists of 96 conjuncts, 26 conjunts are in the unsatisfiable core [2019-05-23 11:26:46,799 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:46,871 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:26:46,871 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,877 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,878 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,878 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-05-23 11:26:46,901 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,902 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:46,902 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,909 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,910 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,910 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:19 [2019-05-23 11:26:46,916 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,917 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:46,917 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,925 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,926 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,926 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-05-23 11:26:46,956 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,957 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,957 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:46,958 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,958 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 11:26:46,959 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,964 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:46,965 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:46,965 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-05-23 11:26:47,095 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:47,095 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 13 [2019-05-23 11:26:47,095 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:47,096 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:47,097 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:47,097 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:3 [2019-05-23 11:26:47,142 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:47,161 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:47,161 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 23 [2019-05-23 11:26:47,161 INFO L146 ILogger]: Interpolant automaton has 23 states [2019-05-23 11:26:47,162 INFO L146 ILogger]: Constructing interpolant automaton starting with 23 interpolants. [2019-05-23 11:26:47,162 INFO L146 ILogger]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:26:47,162 INFO L146 ILogger]: Start difference. First operand 270 states and 319 transitions. Second operand 23 states. [2019-05-23 11:26:48,645 WARN L146 ILogger]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-05-23 11:26:50,567 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:50,567 INFO L146 ILogger]: Finished difference Result 436 states and 495 transitions. [2019-05-23 11:26:50,567 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-05-23 11:26:50,568 INFO L146 ILogger]: Start accepts. Automaton has 23 states. Word has length 61 [2019-05-23 11:26:50,568 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:50,571 INFO L146 ILogger]: With dead ends: 436 [2019-05-23 11:26:50,571 INFO L146 ILogger]: Without dead ends: 434 [2019-05-23 11:26:50,572 INFO L146 ILogger]: 0 DeclaredPredicates, 117 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1081 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=896, Invalid=3264, Unknown=0, NotChecked=0, Total=4160 [2019-05-23 11:26:50,573 INFO L146 ILogger]: Start minimizeSevpa. Operand 434 states. [2019-05-23 11:26:50,584 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 434 to 302. [2019-05-23 11:26:50,584 INFO L146 ILogger]: Start removeUnreachable. Operand 302 states. [2019-05-23 11:26:50,585 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 302 states to 302 states and 355 transitions. [2019-05-23 11:26:50,585 INFO L146 ILogger]: Start accepts. Automaton has 302 states and 355 transitions. Word has length 61 [2019-05-23 11:26:50,585 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:50,585 INFO L146 ILogger]: Abstraction has 302 states and 355 transitions. [2019-05-23 11:26:50,586 INFO L146 ILogger]: Interpolant automaton has 23 states. [2019-05-23 11:26:50,586 INFO L146 ILogger]: Start isEmpty. Operand 302 states and 355 transitions. [2019-05-23 11:26:50,587 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 76 [2019-05-23 11:26:50,587 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:50,587 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] [2019-05-23 11:26:50,587 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:50,587 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:50,588 INFO L146 ILogger]: Analyzing trace with hash -1195230408, now seen corresponding path program 2 times [2019-05-23 11:26:50,588 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:50,588 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:50,589 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:50,589 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:50,589 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:50,603 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:50,832 INFO L146 ILogger]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:50,832 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:50,832 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:26:50,841 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:26:50,857 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:26:50,858 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:50,859 INFO L146 ILogger]: Trace formula consists of 115 conjuncts, 25 conjunts are in the unsatisfiable core [2019-05-23 11:26:50,862 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:51,164 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:26:51,165 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:51,174 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:51,175 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:51,175 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2019-05-23 11:26:51,202 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:51,203 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:51,204 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:51,214 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:51,215 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:51,215 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:26:51,244 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:51,245 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:26:51,246 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:51,255 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:51,256 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:51,256 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:31 [2019-05-23 11:26:51,573 INFO L146 ILogger]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:51,592 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:51,592 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2019-05-23 11:26:51,592 INFO L146 ILogger]: Interpolant automaton has 30 states [2019-05-23 11:26:51,593 INFO L146 ILogger]: Constructing interpolant automaton starting with 30 interpolants. [2019-05-23 11:26:51,594 INFO L146 ILogger]: CoverageRelationStatistics Valid=113, Invalid=757, Unknown=0, NotChecked=0, Total=870 [2019-05-23 11:26:51,594 INFO L146 ILogger]: Start difference. First operand 302 states and 355 transitions. Second operand 30 states. [2019-05-23 11:26:53,186 WARN L146 ILogger]: Spent 148.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2019-05-23 11:26:53,254 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:53,255 INFO L146 ILogger]: Finished difference Result 614 states and 707 transitions. [2019-05-23 11:26:53,255 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-05-23 11:26:53,255 INFO L146 ILogger]: Start accepts. Automaton has 30 states. Word has length 75 [2019-05-23 11:26:53,256 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:53,258 INFO L146 ILogger]: With dead ends: 614 [2019-05-23 11:26:53,258 INFO L146 ILogger]: Without dead ends: 474 [2019-05-23 11:26:53,260 INFO L146 ILogger]: 0 DeclaredPredicates, 110 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=427, Invalid=1925, Unknown=0, NotChecked=0, Total=2352 [2019-05-23 11:26:53,261 INFO L146 ILogger]: Start minimizeSevpa. Operand 474 states. [2019-05-23 11:26:53,275 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 474 to 364. [2019-05-23 11:26:53,275 INFO L146 ILogger]: Start removeUnreachable. Operand 364 states. [2019-05-23 11:26:53,276 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 364 states to 364 states and 424 transitions. [2019-05-23 11:26:53,276 INFO L146 ILogger]: Start accepts. Automaton has 364 states and 424 transitions. Word has length 75 [2019-05-23 11:26:53,276 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:53,276 INFO L146 ILogger]: Abstraction has 364 states and 424 transitions. [2019-05-23 11:26:53,277 INFO L146 ILogger]: Interpolant automaton has 30 states. [2019-05-23 11:26:53,277 INFO L146 ILogger]: Start isEmpty. Operand 364 states and 424 transitions. [2019-05-23 11:26:53,278 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 76 [2019-05-23 11:26:53,278 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:53,278 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] [2019-05-23 11:26:53,278 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:53,278 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:53,279 INFO L146 ILogger]: Analyzing trace with hash -1257559144, now seen corresponding path program 1 times [2019-05-23 11:26:53,279 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:53,279 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:53,280 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:53,280 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:26:53,280 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:53,289 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:53,510 INFO L146 ILogger]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:53,510 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:53,510 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:26:53,519 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:53,537 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:53,538 INFO L146 ILogger]: Trace formula consists of 115 conjuncts, 23 conjunts are in the unsatisfiable core [2019-05-23 11:26:53,540 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:53,650 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:26:53,650 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:53,660 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:53,661 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 11:26:53,661 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2019-05-23 11:26:53,697 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:53,697 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:53,698 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:53,708 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:53,709 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:53,709 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:26:53,714 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:53,714 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:26:53,715 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:53,721 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:53,722 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:53,722 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2019-05-23 11:26:53,903 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:53,904 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2019-05-23 11:26:53,904 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:53,907 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:53,908 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:53,908 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2019-05-23 11:26:53,987 INFO L146 ILogger]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:54,005 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:54,005 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 28 [2019-05-23 11:26:54,005 INFO L146 ILogger]: Interpolant automaton has 28 states [2019-05-23 11:26:54,006 INFO L146 ILogger]: Constructing interpolant automaton starting with 28 interpolants. [2019-05-23 11:26:54,006 INFO L146 ILogger]: CoverageRelationStatistics Valid=101, Invalid=655, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:26:54,006 INFO L146 ILogger]: Start difference. First operand 364 states and 424 transitions. Second operand 28 states. [2019-05-23 11:26:56,093 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:56,093 INFO L146 ILogger]: Finished difference Result 667 states and 748 transitions. [2019-05-23 11:26:56,094 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-05-23 11:26:56,094 INFO L146 ILogger]: Start accepts. Automaton has 28 states. Word has length 75 [2019-05-23 11:26:56,094 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:56,096 INFO L146 ILogger]: With dead ends: 667 [2019-05-23 11:26:56,096 INFO L146 ILogger]: Without dead ends: 504 [2019-05-23 11:26:56,098 INFO L146 ILogger]: 0 DeclaredPredicates, 122 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 773 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=592, Invalid=2830, Unknown=0, NotChecked=0, Total=3422 [2019-05-23 11:26:56,099 INFO L146 ILogger]: Start minimizeSevpa. Operand 504 states. [2019-05-23 11:26:56,112 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 504 to 306. [2019-05-23 11:26:56,112 INFO L146 ILogger]: Start removeUnreachable. Operand 306 states. [2019-05-23 11:26:56,113 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 306 states to 306 states and 347 transitions. [2019-05-23 11:26:56,113 INFO L146 ILogger]: Start accepts. Automaton has 306 states and 347 transitions. Word has length 75 [2019-05-23 11:26:56,113 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:56,113 INFO L146 ILogger]: Abstraction has 306 states and 347 transitions. [2019-05-23 11:26:56,114 INFO L146 ILogger]: Interpolant automaton has 28 states. [2019-05-23 11:26:56,114 INFO L146 ILogger]: Start isEmpty. Operand 306 states and 347 transitions. [2019-05-23 11:26:56,115 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 76 [2019-05-23 11:26:56,115 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:56,115 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:56,115 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:56,115 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:56,116 INFO L146 ILogger]: Analyzing trace with hash -1752142672, now seen corresponding path program 1 times [2019-05-23 11:26:56,116 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:56,116 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:56,116 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:56,117 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:56,117 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:56,122 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:56,169 INFO L146 ILogger]: Checked inductivity of 43 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:26:56,169 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:56,170 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:26:56,170 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:26:56,170 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:26:56,170 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:56,170 INFO L146 ILogger]: Start difference. First operand 306 states and 347 transitions. Second operand 3 states. [2019-05-23 11:26:56,239 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:56,240 INFO L146 ILogger]: Finished difference Result 620 states and 699 transitions. [2019-05-23 11:26:56,241 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:26:56,241 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 75 [2019-05-23 11:26:56,241 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:56,243 INFO L146 ILogger]: With dead ends: 620 [2019-05-23 11:26:56,243 INFO L146 ILogger]: Without dead ends: 426 [2019-05-23 11:26:56,243 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:26:56,244 INFO L146 ILogger]: Start minimizeSevpa. Operand 426 states. [2019-05-23 11:26:56,257 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 426 to 332. [2019-05-23 11:26:56,258 INFO L146 ILogger]: Start removeUnreachable. Operand 332 states. [2019-05-23 11:26:56,259 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 332 states to 332 states and 371 transitions. [2019-05-23 11:26:56,259 INFO L146 ILogger]: Start accepts. Automaton has 332 states and 371 transitions. Word has length 75 [2019-05-23 11:26:56,259 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:56,259 INFO L146 ILogger]: Abstraction has 332 states and 371 transitions. [2019-05-23 11:26:56,259 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:26:56,259 INFO L146 ILogger]: Start isEmpty. Operand 332 states and 371 transitions. [2019-05-23 11:26:56,260 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 76 [2019-05-23 11:26:56,260 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:56,260 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:26:56,261 INFO L146 ILogger]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:56,261 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:56,261 INFO L146 ILogger]: Analyzing trace with hash -396651152, now seen corresponding path program 1 times [2019-05-23 11:26:56,261 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:56,261 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:56,262 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:56,262 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:56,262 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:56,270 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:56,453 INFO L146 ILogger]: Checked inductivity of 45 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-05-23 11:26:56,453 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:26:56,453 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:26:56,453 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:26:56,454 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:26:56,454 INFO L146 ILogger]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:26:56,454 INFO L146 ILogger]: Start difference. First operand 332 states and 371 transitions. Second operand 5 states. [2019-05-23 11:26:56,518 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:26:56,518 INFO L146 ILogger]: Finished difference Result 423 states and 464 transitions. [2019-05-23 11:26:56,518 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:26:56,518 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 75 [2019-05-23 11:26:56,518 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:26:56,519 INFO L146 ILogger]: With dead ends: 423 [2019-05-23 11:26:56,520 INFO L146 ILogger]: Without dead ends: 247 [2019-05-23 11:26:56,520 INFO L146 ILogger]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:26:56,520 INFO L146 ILogger]: Start minimizeSevpa. Operand 247 states. [2019-05-23 11:26:56,530 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 247 to 211. [2019-05-23 11:26:56,531 INFO L146 ILogger]: Start removeUnreachable. Operand 211 states. [2019-05-23 11:26:56,531 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 211 states to 211 states and 234 transitions. [2019-05-23 11:26:56,531 INFO L146 ILogger]: Start accepts. Automaton has 211 states and 234 transitions. Word has length 75 [2019-05-23 11:26:56,532 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:26:56,533 INFO L146 ILogger]: Abstraction has 211 states and 234 transitions. [2019-05-23 11:26:56,533 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:26:56,534 INFO L146 ILogger]: Start isEmpty. Operand 211 states and 234 transitions. [2019-05-23 11:26:56,534 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 76 [2019-05-23 11:26:56,534 INFO L146 ILogger]: Found error trace [2019-05-23 11:26:56,535 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] [2019-05-23 11:26:56,535 INFO L146 ILogger]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:26:56,535 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:26:56,535 INFO L146 ILogger]: Analyzing trace with hash -1425163272, now seen corresponding path program 2 times [2019-05-23 11:26:56,535 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:26:56,535 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:26:56,536 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:56,536 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:26:56,536 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:26:56,546 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:56,874 INFO L146 ILogger]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:56,874 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:26:56,874 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:26:56,882 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:26:56,901 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:26:56,901 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:26:56,902 INFO L146 ILogger]: Trace formula consists of 115 conjuncts, 23 conjunts are in the unsatisfiable core [2019-05-23 11:26:56,903 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:26:57,526 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:26:57,526 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:57,535 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:57,535 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 11:26:57,535 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2019-05-23 11:26:57,562 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:57,563 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:26:57,564 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:57,574 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:57,575 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:57,575 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:22 [2019-05-23 11:26:57,661 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:26:57,663 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2019-05-23 11:26:57,663 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:57,676 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:57,676 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:57,676 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2019-05-23 11:26:57,875 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:57,876 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2019-05-23 11:26:57,876 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:26:57,878 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:26:57,879 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:26:57,879 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2019-05-23 11:26:57,916 INFO L146 ILogger]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:26:57,935 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:26:57,935 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 28 [2019-05-23 11:26:57,936 INFO L146 ILogger]: Interpolant automaton has 28 states [2019-05-23 11:26:57,936 INFO L146 ILogger]: Constructing interpolant automaton starting with 28 interpolants. [2019-05-23 11:26:57,936 INFO L146 ILogger]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:26:57,937 INFO L146 ILogger]: Start difference. First operand 211 states and 234 transitions. Second operand 28 states. [2019-05-23 11:27:01,670 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:01,670 INFO L146 ILogger]: Finished difference Result 699 states and 752 transitions. [2019-05-23 11:27:01,670 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-05-23 11:27:01,670 INFO L146 ILogger]: Start accepts. Automaton has 28 states. Word has length 75 [2019-05-23 11:27:01,671 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:01,673 INFO L146 ILogger]: With dead ends: 699 [2019-05-23 11:27:01,673 INFO L146 ILogger]: Without dead ends: 602 [2019-05-23 11:27:01,674 INFO L146 ILogger]: 0 DeclaredPredicates, 142 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1391 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=950, Invalid=5212, Unknown=0, NotChecked=0, Total=6162 [2019-05-23 11:27:01,675 INFO L146 ILogger]: Start minimizeSevpa. Operand 602 states. [2019-05-23 11:27:01,688 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 602 to 251. [2019-05-23 11:27:01,688 INFO L146 ILogger]: Start removeUnreachable. Operand 251 states. [2019-05-23 11:27:01,689 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 251 states to 251 states and 277 transitions. [2019-05-23 11:27:01,689 INFO L146 ILogger]: Start accepts. Automaton has 251 states and 277 transitions. Word has length 75 [2019-05-23 11:27:01,689 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:01,689 INFO L146 ILogger]: Abstraction has 251 states and 277 transitions. [2019-05-23 11:27:01,689 INFO L146 ILogger]: Interpolant automaton has 28 states. [2019-05-23 11:27:01,690 INFO L146 ILogger]: Start isEmpty. Operand 251 states and 277 transitions. [2019-05-23 11:27:01,690 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 76 [2019-05-23 11:27:01,690 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:01,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:01,691 INFO L146 ILogger]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:01,691 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:01,691 INFO L146 ILogger]: Analyzing trace with hash -1572415804, now seen corresponding path program 3 times [2019-05-23 11:27:01,691 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:01,692 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:01,692 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:01,692 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:01,692 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:01,702 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:02,063 INFO L146 ILogger]: Checked inductivity of 24 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:02,063 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:02,063 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 11:27:02,072 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:27:02,094 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:27:02,094 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:02,095 INFO L146 ILogger]: Trace formula consists of 112 conjuncts, 29 conjunts are in the unsatisfiable core [2019-05-23 11:27:02,096 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:02,191 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:27:02,192 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,199 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,199 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,200 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2019-05-23 11:27:02,233 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,234 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:27:02,235 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,256 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,257 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,257 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2019-05-23 11:27:02,292 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,293 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,293 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,294 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,295 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 11:27:02,295 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,309 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,309 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,310 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2019-05-23 11:27:02,405 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,427 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,438 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,444 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,446 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,446 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,447 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,447 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 58 [2019-05-23 11:27:02,448 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,463 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,463 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,463 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:60 [2019-05-23 11:27:02,588 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,589 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,590 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,592 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,594 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,594 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,595 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,596 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,597 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,598 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,599 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,599 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 61 [2019-05-23 11:27:02,600 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,616 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,617 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,617 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:60 [2019-05-23 11:27:02,727 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,727 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,729 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,730 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,732 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,733 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,734 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,735 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,736 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,737 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,739 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,740 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,741 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,742 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,743 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,744 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,744 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 76 [2019-05-23 11:27:02,745 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,766 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,766 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,767 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:78 [2019-05-23 11:27:02,828 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,829 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,830 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,831 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,832 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,833 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,834 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,835 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,836 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,837 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,839 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,840 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,841 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,842 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,843 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,844 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,845 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,846 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,847 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,848 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,849 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,850 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,851 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 88 [2019-05-23 11:27:02,851 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,872 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,872 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:02,873 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:90 [2019-05-23 11:27:02,959 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,959 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,962 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,963 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,964 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,965 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,966 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,967 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,968 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,969 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,970 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,971 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,972 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,973 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,974 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,975 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,976 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,977 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,978 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,979 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,980 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,981 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,982 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,984 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,985 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,986 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,987 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,988 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:02,989 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:02,990 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 92 treesize of output 100 [2019-05-23 11:27:02,991 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:03,012 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:03,012 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:03,012 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:103, output treesize:99 [2019-05-23 11:27:03,086 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,087 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,088 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,089 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,090 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,091 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,092 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,094 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,095 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,096 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,097 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,098 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,099 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,100 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,101 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,102 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,110 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,111 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,111 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,112 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,113 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,113 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,114 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,115 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,116 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,118 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,119 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,120 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,121 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,122 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,123 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,124 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,125 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,126 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,127 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,128 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:03,130 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:03,130 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 104 treesize of output 115 [2019-05-23 11:27:03,131 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:03,191 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:03,191 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:03,192 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:115, output treesize:111 [2019-05-23 11:27:04,518 WARN L146 ILogger]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-05-23 11:27:04,818 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,820 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,822 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,824 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,826 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,828 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,831 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,833 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,835 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,837 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,839 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,842 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,844 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,846 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,848 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,851 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,853 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,855 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,857 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,859 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,862 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,865 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,867 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,869 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,872 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,874 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,876 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,879 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,881 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,883 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:04,884 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:04,884 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 93 treesize of output 25 [2019-05-23 11:27:04,884 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:04,902 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:04,903 INFO L146 ILogger]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:04,903 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 4 variables, input treesize:111, output treesize:3 [2019-05-23 11:27:04,943 INFO L146 ILogger]: Checked inductivity of 24 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:04,961 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:04,961 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 25] total 37 [2019-05-23 11:27:04,961 INFO L146 ILogger]: Interpolant automaton has 37 states [2019-05-23 11:27:04,962 INFO L146 ILogger]: Constructing interpolant automaton starting with 37 interpolants. [2019-05-23 11:27:04,962 INFO L146 ILogger]: CoverageRelationStatistics Valid=130, Invalid=1202, Unknown=0, NotChecked=0, Total=1332 [2019-05-23 11:27:04,962 INFO L146 ILogger]: Start difference. First operand 251 states and 277 transitions. Second operand 37 states. [2019-05-23 11:27:08,675 WARN L146 ILogger]: Spent 129.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-05-23 11:27:10,219 WARN L146 ILogger]: Spent 101.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-05-23 11:27:10,907 WARN L146 ILogger]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-05-23 11:27:12,794 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:12,794 INFO L146 ILogger]: Finished difference Result 656 states and 703 transitions. [2019-05-23 11:27:12,794 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2019-05-23 11:27:12,794 INFO L146 ILogger]: Start accepts. Automaton has 37 states. Word has length 75 [2019-05-23 11:27:12,795 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:12,797 INFO L146 ILogger]: With dead ends: 656 [2019-05-23 11:27:12,797 INFO L146 ILogger]: Without dead ends: 578 [2019-05-23 11:27:12,801 INFO L146 ILogger]: 0 DeclaredPredicates, 158 GetRequests, 55 SyntacticMatches, 6 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2556 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=1379, Invalid=8323, Unknown=0, NotChecked=0, Total=9702 [2019-05-23 11:27:12,801 INFO L146 ILogger]: Start minimizeSevpa. Operand 578 states. [2019-05-23 11:27:12,815 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 578 to 258. [2019-05-23 11:27:12,815 INFO L146 ILogger]: Start removeUnreachable. Operand 258 states. [2019-05-23 11:27:12,816 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 258 states to 258 states and 283 transitions. [2019-05-23 11:27:12,816 INFO L146 ILogger]: Start accepts. Automaton has 258 states and 283 transitions. Word has length 75 [2019-05-23 11:27:12,816 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:12,816 INFO L146 ILogger]: Abstraction has 258 states and 283 transitions. [2019-05-23 11:27:12,816 INFO L146 ILogger]: Interpolant automaton has 37 states. [2019-05-23 11:27:12,816 INFO L146 ILogger]: Start isEmpty. Operand 258 states and 283 transitions. [2019-05-23 11:27:12,817 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 76 [2019-05-23 11:27:12,817 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:12,817 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:12,818 INFO L146 ILogger]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:12,818 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:12,818 INFO L146 ILogger]: Analyzing trace with hash -520376444, now seen corresponding path program 1 times [2019-05-23 11:27:12,818 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:12,818 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:12,819 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:12,819 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:27:12,819 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:12,829 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:13,085 INFO L146 ILogger]: Checked inductivity of 24 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:13,085 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:27:13,085 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:27:13,093 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:13,112 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:13,113 INFO L146 ILogger]: Trace formula consists of 112 conjuncts, 25 conjunts are in the unsatisfiable core [2019-05-23 11:27:13,115 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:27:13,194 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:27:13,195 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,203 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,203 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,204 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-05-23 11:27:13,229 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,230 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2019-05-23 11:27:13,230 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,242 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,242 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,242 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2019-05-23 11:27:13,275 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,276 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,277 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,278 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,278 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 11:27:13,279 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,293 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,294 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,294 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2019-05-23 11:27:13,338 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,339 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,339 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,340 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,341 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,341 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,342 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,342 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 58 [2019-05-23 11:27:13,343 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,359 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,359 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,360 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:58 [2019-05-23 11:27:13,479 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,480 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,481 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,482 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,484 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,485 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,486 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,487 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,487 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,488 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,489 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,490 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 61 [2019-05-23 11:27:13,490 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,508 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,509 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,509 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:58 [2019-05-23 11:27:13,559 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,559 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,561 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,562 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,563 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,563 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,564 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,565 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,566 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,567 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,568 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,569 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,570 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,571 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,572 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,573 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,574 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 76 [2019-05-23 11:27:13,574 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,593 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,593 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,593 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:77, output treesize:73 [2019-05-23 11:27:13,648 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,649 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,650 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,651 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,652 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,653 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,654 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,655 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,656 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,657 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,658 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,659 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,660 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,661 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,662 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,663 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,665 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,666 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,667 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,668 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,669 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,670 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,671 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 88 [2019-05-23 11:27:13,671 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,688 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,688 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,688 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:86, output treesize:85 [2019-05-23 11:27:13,762 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,763 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,765 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,766 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,770 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,771 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,772 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,775 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,775 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,776 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,777 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,777 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,778 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,778 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,779 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,780 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,781 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,782 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,783 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,784 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,785 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,787 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,788 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,789 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,790 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,791 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,792 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,793 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,794 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,795 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 103 [2019-05-23 11:27:13,795 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,817 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,818 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:13,818 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:101, output treesize:94 [2019-05-23 11:27:13,929 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,948 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,949 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,950 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,950 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,951 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,952 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,952 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,953 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,954 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,955 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,957 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,958 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,959 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,960 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,961 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,962 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,962 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,963 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,965 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,966 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,967 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,968 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,969 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,970 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,971 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,972 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,973 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,974 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,975 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,976 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,977 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,978 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,979 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,980 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,981 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:13,985 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:13,986 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 104 treesize of output 118 [2019-05-23 11:27:13,986 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:14,008 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:14,009 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:27:14,009 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:110, output treesize:106 [2019-05-23 11:27:14,391 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,415 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,436 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,462 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,483 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,510 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,533 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,554 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,579 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,606 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,628 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,658 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,679 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,695 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,722 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,743 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,758 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,787 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,808 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,833 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,860 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,884 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,914 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,932 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,957 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,985 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:14,999 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:15,025 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:15,050 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:15,075 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:27:15,088 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:15,089 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 92 treesize of output 28 [2019-05-23 11:27:15,090 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:27:15,165 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:27:15,165 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:27:15,165 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:95, output treesize:3 [2019-05-23 11:27:15,223 INFO L146 ILogger]: Checked inductivity of 24 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:15,255 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:27:15,255 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 21] total 31 [2019-05-23 11:27:15,256 INFO L146 ILogger]: Interpolant automaton has 31 states [2019-05-23 11:27:15,256 INFO L146 ILogger]: Constructing interpolant automaton starting with 31 interpolants. [2019-05-23 11:27:15,256 INFO L146 ILogger]: CoverageRelationStatistics Valid=156, Invalid=774, Unknown=0, NotChecked=0, Total=930 [2019-05-23 11:27:15,256 INFO L146 ILogger]: Start difference. First operand 258 states and 283 transitions. Second operand 31 states.