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/nr2_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:25:03,858 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:25:03,860 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:25:03,876 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:25:03,877 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:25:03,878 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:25:03,879 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:25:03,881 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:25:03,883 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:25:03,884 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:25:03,885 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:25:03,886 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:25:03,887 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:25:03,888 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:25:03,890 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:25:03,891 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:25:03,892 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:25:03,894 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:25:03,896 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:25:03,897 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:25:03,899 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:25:03,901 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:25:03,904 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:25:03,904 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:25:03,904 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:25:03,905 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:25:03,908 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:25:03,910 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:25:03,910 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:25:03,911 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:25:03,911 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:25:03,912 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:25:03,913 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:25:03,913 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:25:03,915 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:25:03,915 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:25:03,915 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:25:03,917 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:25:03,917 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:25:03,918 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:25:03,933 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:25:03,933 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:25:03,934 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:25:03,934 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:25:03,934 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:25:03,935 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:25:03,935 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:25:03,935 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:25:03,935 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:25:03,936 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:25:03,936 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:25:03,936 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:25:03,936 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:25:03,936 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:25:03,937 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:25:03,937 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:25:03,937 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:25:03,937 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:25:03,937 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:25:03,938 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:25:03,938 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:25:03,938 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:25:03,938 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:25:03,938 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:25:03,939 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:25:03,939 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:25:03,939 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:25:03,939 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:25:03,939 INFO L146 ILogger]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2019-05-23 11:25:03,974 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:25:03,987 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:25:03,993 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:25:03,995 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:25:03,995 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:25:03,996 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-tiling/nr2_true-unreach-call.i [2019-05-23 11:25:04,064 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd632376c/5f866d6e2b6140d99b89491627c7a69d/FLAG37af1268a [2019-05-23 11:25:04,517 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:25:04,518 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-tiling/nr2_true-unreach-call.i [2019-05-23 11:25:04,524 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd632376c/5f866d6e2b6140d99b89491627c7a69d/FLAG37af1268a [2019-05-23 11:25:04,880 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd632376c/5f866d6e2b6140d99b89491627c7a69d [2019-05-23 11:25:04,890 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:25:04,892 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:25:04,893 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:25:04,893 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:25:04,896 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:25:04,897 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:25:04" (1/1) ... [2019-05-23 11:25:04,900 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9962ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:04, skipping insertion in model container [2019-05-23 11:25:04,900 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:25:04" (1/1) ... [2019-05-23 11:25:04,908 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:25:04,926 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:25:05,098 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:25:05,103 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:25:05,128 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:25:05,150 INFO L146 ILogger]: Completed translation [2019-05-23 11:25:05,151 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:05 WrapperNode [2019-05-23 11:25:05,151 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:25:05,152 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:25:05,152 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:25:05,153 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:25:05,162 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:05" (1/1) ... [2019-05-23 11:25:05,171 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:05" (1/1) ... [2019-05-23 11:25:05,198 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:25:05,199 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:25:05,199 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:25:05,199 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:25:05,207 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:05" (1/1) ... [2019-05-23 11:25:05,207 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:05" (1/1) ... [2019-05-23 11:25:05,209 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:05" (1/1) ... [2019-05-23 11:25:05,209 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:05" (1/1) ... [2019-05-23 11:25:05,303 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:05" (1/1) ... [2019-05-23 11:25:05,308 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:05" (1/1) ... [2019-05-23 11:25:05,310 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:05" (1/1) ... [2019-05-23 11:25:05,312 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:25:05,312 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:25:05,313 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:25:05,313 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:25:05,314 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 [2019-05-23 11:25:05,363 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:25:05,363 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:25:05,364 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:25:05,364 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:25:05,364 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:25:05,364 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:25:05,875 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:25:05,875 INFO L146 ILogger]: Removed 9 assume(true) statements. [2019-05-23 11:25:05,877 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:25:05 BoogieIcfgContainer [2019-05-23 11:25:05,877 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:25:05,878 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:25:05,878 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:25:05,881 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:25:05,881 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:25:04" (1/3) ... [2019-05-23 11:25:05,882 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8ea2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:25:05, skipping insertion in model container [2019-05-23 11:25:05,882 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:25:05" (2/3) ... [2019-05-23 11:25:05,883 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8ea2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:25:05, skipping insertion in model container [2019-05-23 11:25:05,883 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:25:05" (3/3) ... [2019-05-23 11:25:05,885 INFO L146 ILogger]: Analyzing ICFG nr2_true-unreach-call.i [2019-05-23 11:25:05,894 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:25:05,903 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:25:05,920 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:25:05,953 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:25:05,953 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:25:05,953 INFO L146 ILogger]: Hoare is true [2019-05-23 11:25:05,953 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:25:05,954 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:25:05,954 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:25:05,954 INFO L146 ILogger]: Difference is false [2019-05-23 11:25:05,954 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:25:05,954 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:25:05,971 INFO L146 ILogger]: Start isEmpty. Operand 57 states. [2019-05-23 11:25:05,979 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 29 [2019-05-23 11:25:05,979 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:05,980 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] [2019-05-23 11:25:05,982 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:05,987 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:05,988 INFO L146 ILogger]: Analyzing trace with hash 407920706, now seen corresponding path program 1 times [2019-05-23 11:25:05,989 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:05,989 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:06,034 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:06,034 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:06,034 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:06,095 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:06,227 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:06,230 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:25:06,230 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 11:25:06,233 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:25:06,243 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:25:06,244 INFO L146 ILogger]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:25:06,245 INFO L146 ILogger]: Start difference. First operand 57 states. Second operand 5 states. [2019-05-23 11:25:06,698 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:06,700 INFO L146 ILogger]: Finished difference Result 134 states and 157 transitions. [2019-05-23 11:25:06,700 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:25:06,701 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 28 [2019-05-23 11:25:06,702 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:06,712 INFO L146 ILogger]: With dead ends: 134 [2019-05-23 11:25:06,712 INFO L146 ILogger]: Without dead ends: 76 [2019-05-23 11:25:06,716 INFO L146 ILogger]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:25:06,731 INFO L146 ILogger]: Start minimizeSevpa. Operand 76 states. [2019-05-23 11:25:06,749 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 76 to 52. [2019-05-23 11:25:06,750 INFO L146 ILogger]: Start removeUnreachable. Operand 52 states. [2019-05-23 11:25:06,752 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2019-05-23 11:25:06,753 INFO L146 ILogger]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 28 [2019-05-23 11:25:06,754 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:06,754 INFO L146 ILogger]: Abstraction has 52 states and 56 transitions. [2019-05-23 11:25:06,754 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:25:06,754 INFO L146 ILogger]: Start isEmpty. Operand 52 states and 56 transitions. [2019-05-23 11:25:06,756 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 31 [2019-05-23 11:25:06,756 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:06,756 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:06,757 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:06,758 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:06,758 INFO L146 ILogger]: Analyzing trace with hash 1905028511, now seen corresponding path program 1 times [2019-05-23 11:25:06,758 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:06,758 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:06,760 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:06,760 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:06,760 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:06,798 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:06,877 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:06,877 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:25:06,877 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:25:06,879 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:25:06,879 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:25:06,880 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:25:06,880 INFO L146 ILogger]: Start difference. First operand 52 states and 56 transitions. Second operand 4 states. [2019-05-23 11:25:06,970 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:06,970 INFO L146 ILogger]: Finished difference Result 86 states and 94 transitions. [2019-05-23 11:25:06,971 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:25:06,971 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 30 [2019-05-23 11:25:06,971 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:06,973 INFO L146 ILogger]: With dead ends: 86 [2019-05-23 11:25:06,973 INFO L146 ILogger]: Without dead ends: 63 [2019-05-23 11:25:06,975 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:25:06,977 INFO L146 ILogger]: Start minimizeSevpa. Operand 63 states. [2019-05-23 11:25:06,988 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 63 to 53. [2019-05-23 11:25:06,989 INFO L146 ILogger]: Start removeUnreachable. Operand 53 states. [2019-05-23 11:25:06,991 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2019-05-23 11:25:06,991 INFO L146 ILogger]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 30 [2019-05-23 11:25:06,992 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:06,992 INFO L146 ILogger]: Abstraction has 53 states and 57 transitions. [2019-05-23 11:25:06,992 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:25:06,992 INFO L146 ILogger]: Start isEmpty. Operand 53 states and 57 transitions. [2019-05-23 11:25:06,993 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 37 [2019-05-23 11:25:06,993 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:06,994 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] [2019-05-23 11:25:06,994 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:06,994 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:06,994 INFO L146 ILogger]: Analyzing trace with hash -1511798676, now seen corresponding path program 1 times [2019-05-23 11:25:06,995 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:06,995 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:06,996 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:06,996 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:06,997 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:07,028 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:07,120 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 11:25:07,120 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:25:07,120 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:25:07,121 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:25:07,121 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:25:07,121 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:25:07,121 INFO L146 ILogger]: Start difference. First operand 53 states and 57 transitions. Second operand 3 states. [2019-05-23 11:25:07,176 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:07,176 INFO L146 ILogger]: Finished difference Result 94 states and 104 transitions. [2019-05-23 11:25:07,177 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:25:07,177 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 36 [2019-05-23 11:25:07,177 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:07,178 INFO L146 ILogger]: With dead ends: 94 [2019-05-23 11:25:07,178 INFO L146 ILogger]: Without dead ends: 59 [2019-05-23 11:25:07,179 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 11:25:07,179 INFO L146 ILogger]: Start minimizeSevpa. Operand 59 states. [2019-05-23 11:25:07,185 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 59 to 54. [2019-05-23 11:25:07,185 INFO L146 ILogger]: Start removeUnreachable. Operand 54 states. [2019-05-23 11:25:07,186 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2019-05-23 11:25:07,186 INFO L146 ILogger]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 36 [2019-05-23 11:25:07,186 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:07,186 INFO L146 ILogger]: Abstraction has 54 states and 58 transitions. [2019-05-23 11:25:07,187 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:25:07,187 INFO L146 ILogger]: Start isEmpty. Operand 54 states and 58 transitions. [2019-05-23 11:25:07,188 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 43 [2019-05-23 11:25:07,188 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:07,188 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] [2019-05-23 11:25:07,189 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:07,189 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:07,189 INFO L146 ILogger]: Analyzing trace with hash 1340501379, now seen corresponding path program 1 times [2019-05-23 11:25:07,190 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:07,190 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:07,191 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:07,191 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:07,191 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:07,205 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:07,259 INFO L146 ILogger]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:07,259 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:25:07,260 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:25:07,260 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:25:07,260 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:25:07,261 INFO L146 ILogger]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:25:07,261 INFO L146 ILogger]: Start difference. First operand 54 states and 58 transitions. Second operand 4 states. [2019-05-23 11:25:07,414 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:07,418 INFO L146 ILogger]: Finished difference Result 93 states and 102 transitions. [2019-05-23 11:25:07,419 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:25:07,419 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 42 [2019-05-23 11:25:07,419 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:07,420 INFO L146 ILogger]: With dead ends: 93 [2019-05-23 11:25:07,420 INFO L146 ILogger]: Without dead ends: 57 [2019-05-23 11:25:07,421 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:25:07,421 INFO L146 ILogger]: Start minimizeSevpa. Operand 57 states. [2019-05-23 11:25:07,427 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 57 to 55. [2019-05-23 11:25:07,427 INFO L146 ILogger]: Start removeUnreachable. Operand 55 states. [2019-05-23 11:25:07,428 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2019-05-23 11:25:07,428 INFO L146 ILogger]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 42 [2019-05-23 11:25:07,428 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:07,429 INFO L146 ILogger]: Abstraction has 55 states and 59 transitions. [2019-05-23 11:25:07,429 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:25:07,429 INFO L146 ILogger]: Start isEmpty. Operand 55 states and 59 transitions. [2019-05-23 11:25:07,430 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 43 [2019-05-23 11:25:07,430 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:07,430 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] [2019-05-23 11:25:07,431 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:07,431 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:07,431 INFO L146 ILogger]: Analyzing trace with hash -1769317085, now seen corresponding path program 1 times [2019-05-23 11:25:07,431 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:07,431 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:07,432 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:07,432 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:07,433 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:07,451 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:07,518 INFO L146 ILogger]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:07,518 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:07,518 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:07,538 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:07,565 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:07,566 INFO L146 ILogger]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:25:07,572 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:07,613 INFO L146 ILogger]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:07,651 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:07,651 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-05-23 11:25:07,651 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:25:07,652 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:25:07,652 INFO L146 ILogger]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:25:07,653 INFO L146 ILogger]: Start difference. First operand 55 states and 59 transitions. Second operand 5 states. [2019-05-23 11:25:07,912 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:07,912 INFO L146 ILogger]: Finished difference Result 97 states and 106 transitions. [2019-05-23 11:25:07,918 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:25:07,918 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 42 [2019-05-23 11:25:07,918 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:07,919 INFO L146 ILogger]: With dead ends: 97 [2019-05-23 11:25:07,919 INFO L146 ILogger]: Without dead ends: 60 [2019-05-23 11:25:07,920 INFO L146 ILogger]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:25:07,920 INFO L146 ILogger]: Start minimizeSevpa. Operand 60 states. [2019-05-23 11:25:07,931 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-05-23 11:25:07,931 INFO L146 ILogger]: Start removeUnreachable. Operand 60 states. [2019-05-23 11:25:07,931 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2019-05-23 11:25:07,934 INFO L146 ILogger]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 42 [2019-05-23 11:25:07,935 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:07,935 INFO L146 ILogger]: Abstraction has 60 states and 64 transitions. [2019-05-23 11:25:07,935 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:25:07,935 INFO L146 ILogger]: Start isEmpty. Operand 60 states and 64 transitions. [2019-05-23 11:25:07,936 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 49 [2019-05-23 11:25:07,936 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:07,937 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:25:07,938 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:07,939 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:07,939 INFO L146 ILogger]: Analyzing trace with hash -1763549958, now seen corresponding path program 1 times [2019-05-23 11:25:07,939 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:07,939 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:07,940 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:07,940 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:07,940 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:07,971 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:08,649 WARN L146 ILogger]: Spent 313.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 16 [2019-05-23 11:25:08,823 WARN L146 ILogger]: Spent 107.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2019-05-23 11:25:09,416 INFO L146 ILogger]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:09,416 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:09,416 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:09,435 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:09,453 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:09,456 INFO L146 ILogger]: Trace formula consists of 80 conjuncts, 24 conjunts are in the unsatisfiable core [2019-05-23 11:25:09,459 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:09,533 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 18 treesize of output 14 [2019-05-23 11:25:09,533 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:09,550 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:09,552 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 11:25:09,552 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:33 [2019-05-23 11:25:09,661 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:09,662 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 69 [2019-05-23 11:25:09,664 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:09,761 INFO L146 ILogger]: treesize reduction 27, result has 65.8 percent of original size [2019-05-23 11:25:09,765 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-05-23 11:25:09,766 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:52 [2019-05-23 11:25:10,945 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-05-23 11:25:10,946 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:10,947 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:10,947 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:10,948 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-05-23 11:25:10,995 INFO L146 ILogger]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:11,019 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:11,020 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 27 [2019-05-23 11:25:11,020 INFO L146 ILogger]: Interpolant automaton has 27 states [2019-05-23 11:25:11,020 INFO L146 ILogger]: Constructing interpolant automaton starting with 27 interpolants. [2019-05-23 11:25:11,021 INFO L146 ILogger]: CoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:25:11,021 INFO L146 ILogger]: Start difference. First operand 60 states and 64 transitions. Second operand 27 states. [2019-05-23 11:25:12,194 WARN L146 ILogger]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-05-23 11:25:12,490 WARN L146 ILogger]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2019-05-23 11:25:14,901 WARN L146 ILogger]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-05-23 11:25:15,559 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:15,559 INFO L146 ILogger]: Finished difference Result 261 states and 282 transitions. [2019-05-23 11:25:15,560 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2019-05-23 11:25:15,560 INFO L146 ILogger]: Start accepts. Automaton has 27 states. Word has length 48 [2019-05-23 11:25:15,561 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:15,563 INFO L146 ILogger]: With dead ends: 261 [2019-05-23 11:25:15,564 INFO L146 ILogger]: Without dead ends: 259 [2019-05-23 11:25:15,567 INFO L146 ILogger]: 0 DeclaredPredicates, 121 GetRequests, 31 SyntacticMatches, 11 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2105 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1222, Invalid=5258, Unknown=0, NotChecked=0, Total=6480 [2019-05-23 11:25:15,568 INFO L146 ILogger]: Start minimizeSevpa. Operand 259 states. [2019-05-23 11:25:15,577 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 259 to 86. [2019-05-23 11:25:15,578 INFO L146 ILogger]: Start removeUnreachable. Operand 86 states. [2019-05-23 11:25:15,578 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2019-05-23 11:25:15,578 INFO L146 ILogger]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 48 [2019-05-23 11:25:15,579 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:15,579 INFO L146 ILogger]: Abstraction has 86 states and 94 transitions. [2019-05-23 11:25:15,579 INFO L146 ILogger]: Interpolant automaton has 27 states. [2019-05-23 11:25:15,579 INFO L146 ILogger]: Start isEmpty. Operand 86 states and 94 transitions. [2019-05-23 11:25:15,580 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 63 [2019-05-23 11:25:15,580 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:15,581 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:25:15,581 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:15,581 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:15,581 INFO L146 ILogger]: Analyzing trace with hash -1852201335, now seen corresponding path program 1 times [2019-05-23 11:25:15,582 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:15,582 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:15,583 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:15,583 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:15,583 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:15,603 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:15,832 INFO L146 ILogger]: Checked inductivity of 16 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:25:15,832 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:15,832 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:15,842 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:15,867 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:15,869 INFO L146 ILogger]: Trace formula consists of 99 conjuncts, 23 conjunts are in the unsatisfiable core [2019-05-23 11:25:15,872 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:15,948 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-05-23 11:25:15,949 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:15,954 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:15,955 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 11:25:15,955 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2019-05-23 11:25:15,987 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 19 treesize of output 7 [2019-05-23 11:25:15,988 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:15,989 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:15,989 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:25:15,989 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2019-05-23 11:25:16,019 INFO L146 ILogger]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:16,037 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:25:16,037 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 22 [2019-05-23 11:25:16,037 INFO L146 ILogger]: Interpolant automaton has 22 states [2019-05-23 11:25:16,038 INFO L146 ILogger]: Constructing interpolant automaton starting with 22 interpolants. [2019-05-23 11:25:16,038 INFO L146 ILogger]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2019-05-23 11:25:16,038 INFO L146 ILogger]: Start difference. First operand 86 states and 94 transitions. Second operand 22 states. [2019-05-23 11:25:17,902 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:17,902 INFO L146 ILogger]: Finished difference Result 229 states and 247 transitions. [2019-05-23 11:25:17,902 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-05-23 11:25:17,902 INFO L146 ILogger]: Start accepts. Automaton has 22 states. Word has length 62 [2019-05-23 11:25:17,903 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:17,905 INFO L146 ILogger]: With dead ends: 229 [2019-05-23 11:25:17,905 INFO L146 ILogger]: Without dead ends: 227 [2019-05-23 11:25:17,907 INFO L146 ILogger]: 0 DeclaredPredicates, 125 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1404 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=780, Invalid=4050, Unknown=0, NotChecked=0, Total=4830 [2019-05-23 11:25:17,908 INFO L146 ILogger]: Start minimizeSevpa. Operand 227 states. [2019-05-23 11:25:17,921 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 227 to 111. [2019-05-23 11:25:17,921 INFO L146 ILogger]: Start removeUnreachable. Operand 111 states. [2019-05-23 11:25:17,922 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 111 states to 111 states and 122 transitions. [2019-05-23 11:25:17,922 INFO L146 ILogger]: Start accepts. Automaton has 111 states and 122 transitions. Word has length 62 [2019-05-23 11:25:17,922 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:17,922 INFO L146 ILogger]: Abstraction has 111 states and 122 transitions. [2019-05-23 11:25:17,922 INFO L146 ILogger]: Interpolant automaton has 22 states. [2019-05-23 11:25:17,923 INFO L146 ILogger]: Start isEmpty. Operand 111 states and 122 transitions. [2019-05-23 11:25:17,924 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 63 [2019-05-23 11:25:17,937 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:17,937 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, 1] [2019-05-23 11:25:17,937 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:17,938 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:17,938 INFO L146 ILogger]: Analyzing trace with hash 5357097, now seen corresponding path program 1 times [2019-05-23 11:25:17,938 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:17,938 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:17,939 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:17,939 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:17,939 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:17,967 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:18,105 INFO L146 ILogger]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-05-23 11:25:18,105 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:25:18,106 INFO L146 ILogger]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-05-23 11:25:18,106 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:25:18,106 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:25:18,106 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:25:18,107 INFO L146 ILogger]: Start difference. First operand 111 states and 122 transitions. Second operand 6 states. [2019-05-23 11:25:18,173 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:18,174 INFO L146 ILogger]: Finished difference Result 185 states and 205 transitions. [2019-05-23 11:25:18,174 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:25:18,174 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 62 [2019-05-23 11:25:18,174 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:18,175 INFO L146 ILogger]: With dead ends: 185 [2019-05-23 11:25:18,175 INFO L146 ILogger]: Without dead ends: 100 [2019-05-23 11:25:18,176 INFO L146 ILogger]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:25:18,176 INFO L146 ILogger]: Start minimizeSevpa. Operand 100 states. [2019-05-23 11:25:18,182 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-05-23 11:25:18,183 INFO L146 ILogger]: Start removeUnreachable. Operand 100 states. [2019-05-23 11:25:18,183 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2019-05-23 11:25:18,183 INFO L146 ILogger]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 62 [2019-05-23 11:25:18,184 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:18,184 INFO L146 ILogger]: Abstraction has 100 states and 107 transitions. [2019-05-23 11:25:18,184 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:25:18,184 INFO L146 ILogger]: Start isEmpty. Operand 100 states and 107 transitions. [2019-05-23 11:25:18,185 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 67 [2019-05-23 11:25:18,186 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:18,186 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 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] [2019-05-23 11:25:18,186 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:18,186 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:18,186 INFO L146 ILogger]: Analyzing trace with hash 499862421, now seen corresponding path program 2 times [2019-05-23 11:25:18,186 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:18,187 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:18,187 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:18,188 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:18,188 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:18,209 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:19,278 INFO L146 ILogger]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:25:19,278 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:25:19,278 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:25:19,287 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:25:19,306 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:25:19,306 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:25:19,307 INFO L146 ILogger]: Trace formula consists of 105 conjuncts, 30 conjunts are in the unsatisfiable core [2019-05-23 11:25:19,311 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:25:19,458 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 18 treesize of output 14 [2019-05-23 11:25:19,458 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,498 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,499 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 11:25:19,500 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:33 [2019-05-23 11:25:19,580 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:19,581 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 83 [2019-05-23 11:25:19,582 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:19,616 INFO L146 ILogger]: treesize reduction 33, result has 66.3 percent of original size [2019-05-23 11:25:19,621 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-05-23 11:25:19,621 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:51, output treesize:65 [2019-05-23 11:25:20,270 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:20,298 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:20,299 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 127 [2019-05-23 11:25:20,300 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:20,309 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:20,313 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 50 treesize of output 49 [2019-05-23 11:25:20,314 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:20,408 INFO L146 ILogger]: treesize reduction 47, result has 72.0 percent of original size [2019-05-23 11:25:20,411 INFO L146 ILogger]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2019-05-23 11:25:20,412 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 5 variables, input treesize:113, output treesize:121 [2019-05-23 11:25:32,752 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:32,813 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:32,814 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 162 [2019-05-23 11:25:32,815 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:32,847 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:25:32,892 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:25:32,893 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 162 [2019-05-23 11:25:32,894 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:25:33,166 WARN L146 ILogger]: Spent 271.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-05-23 11:25:33,167 INFO L146 ILogger]: treesize reduction 140, result has 55.3 percent of original size [2019-05-23 11:25:33,172 INFO L146 ILogger]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 8 dim-0 vars, and 2 xjuncts. [2019-05-23 11:25:33,172 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 7 variables, input treesize:129, output treesize:173 [2019-05-23 11:26:21,321 WARN L146 ILogger]: Spent 48.06 s on a formula simplification that was a NOOP. DAG size: 77