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-multidimensional/init-4-n-u_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:31:13,597 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:31:13,599 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:31:13,610 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:31:13,611 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:31:13,612 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:31:13,613 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:31:13,615 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:31:13,617 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:31:13,617 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:31:13,618 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:31:13,619 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:31:13,620 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:31:13,620 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:31:13,622 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:31:13,622 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:31:13,623 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:31:13,625 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:31:13,627 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:31:13,629 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:31:13,630 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:31:13,631 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:31:13,634 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:31:13,634 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:31:13,634 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:31:13,635 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:31:13,636 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:31:13,636 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:31:13,637 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:31:13,637 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:31:13,638 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:31:13,639 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:31:13,640 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:31:13,640 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:31:13,641 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:31:13,641 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:31:13,641 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:31:13,642 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:31:13,643 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:31:13,643 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:31:13,669 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:31:13,669 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:31:13,671 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:31:13,671 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:31:13,672 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:31:13,672 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:31:13,672 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:31:13,672 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:31:13,673 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:31:13,673 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:31:13,673 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:31:13,673 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:31:13,673 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:31:13,673 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:31:13,675 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:31:13,675 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:31:13,675 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:31:13,675 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:31:13,676 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:31:13,676 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:31:13,676 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:31:13,676 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:31:13,676 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:31:13,677 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:31:13,677 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:31:13,678 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:31:13,678 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:31:13,678 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:31:13,678 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 11:31:13,723 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:31:13,736 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:31:13,740 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:31:13,741 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:31:13,742 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:31:13,743 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-multidimensional/init-4-n-u_true-unreach-call.i [2019-05-23 11:31:13,801 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2947e23b8/348db090d0d74dd6ae7158be17ec8e02/FLAG174ac725e [2019-05-23 11:31:14,216 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:31:14,217 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-multidimensional/init-4-n-u_true-unreach-call.i [2019-05-23 11:31:14,223 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2947e23b8/348db090d0d74dd6ae7158be17ec8e02/FLAG174ac725e [2019-05-23 11:31:14,562 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2947e23b8/348db090d0d74dd6ae7158be17ec8e02 [2019-05-23 11:31:14,570 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:31:14,572 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:31:14,572 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:31:14,573 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:31:14,576 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:31:14,577 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:31:14" (1/1) ... [2019-05-23 11:31:14,580 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f5a18b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14, skipping insertion in model container [2019-05-23 11:31:14,580 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:31:14" (1/1) ... [2019-05-23 11:31:14,588 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:31:14,607 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:31:14,803 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:31:14,809 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:31:14,847 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:31:14,879 INFO L146 ILogger]: Completed translation [2019-05-23 11:31:14,880 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14 WrapperNode [2019-05-23 11:31:14,880 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:31:14,880 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:31:14,881 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:31:14,881 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:31:14,888 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14" (1/1) ... [2019-05-23 11:31:14,896 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14" (1/1) ... [2019-05-23 11:31:14,925 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:31:14,925 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:31:14,926 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:31:14,927 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:31:14,939 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14" (1/1) ... [2019-05-23 11:31:14,939 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14" (1/1) ... [2019-05-23 11:31:14,941 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14" (1/1) ... [2019-05-23 11:31:14,942 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14" (1/1) ... [2019-05-23 11:31:14,948 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14" (1/1) ... [2019-05-23 11:31:14,954 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14" (1/1) ... [2019-05-23 11:31:14,956 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14" (1/1) ... [2019-05-23 11:31:15,051 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:31:15,052 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:31:15,052 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:31:15,052 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:31:15,053 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14" (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 11:31:15,109 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:31:15,109 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:31:15,109 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:31:15,109 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:31:15,109 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:31:15,109 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:31:15,614 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:31:15,615 INFO L146 ILogger]: Removed 14 assume(true) statements. [2019-05-23 11:31:15,616 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:31:15 BoogieIcfgContainer [2019-05-23 11:31:15,616 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:31:15,617 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:31:15,617 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:31:15,620 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:31:15,621 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:31:14" (1/3) ... [2019-05-23 11:31:15,622 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5893fffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:31:15, skipping insertion in model container [2019-05-23 11:31:15,622 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:14" (2/3) ... [2019-05-23 11:31:15,622 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5893fffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:31:15, skipping insertion in model container [2019-05-23 11:31:15,622 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:31:15" (3/3) ... [2019-05-23 11:31:15,624 INFO L146 ILogger]: Analyzing ICFG init-4-n-u_true-unreach-call.i [2019-05-23 11:31:15,632 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:31:15,640 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:31:15,656 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:31:15,685 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:31:15,686 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:31:15,686 INFO L146 ILogger]: Hoare is true [2019-05-23 11:31:15,686 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:31:15,686 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:31:15,686 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:31:15,687 INFO L146 ILogger]: Difference is false [2019-05-23 11:31:15,687 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:31:15,687 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:31:15,703 INFO L146 ILogger]: Start isEmpty. Operand 67 states. [2019-05-23 11:31:15,711 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 42 [2019-05-23 11:31:15,711 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:15,712 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:15,714 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:15,720 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:15,720 INFO L146 ILogger]: Analyzing trace with hash -943832533, now seen corresponding path program 1 times [2019-05-23 11:31:15,722 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:15,723 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:15,765 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:15,765 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:15,765 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:15,798 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:15,799 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:15,799 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:15,810 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:15,839 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:15,841 INFO L146 ILogger]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:31:15,848 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:15,962 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 11:31:15,991 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:15,992 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:15,997 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:16,008 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:16,009 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:16,011 INFO L146 ILogger]: Start difference. First operand 67 states. Second operand 4 states. [2019-05-23 11:31:16,195 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:16,195 INFO L146 ILogger]: Finished difference Result 151 states and 200 transitions. [2019-05-23 11:31:16,196 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:16,197 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 41 [2019-05-23 11:31:16,198 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:16,208 INFO L146 ILogger]: With dead ends: 151 [2019-05-23 11:31:16,208 INFO L146 ILogger]: Without dead ends: 98 [2019-05-23 11:31:16,211 INFO L146 ILogger]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 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 11:31:16,227 INFO L146 ILogger]: Start minimizeSevpa. Operand 98 states. [2019-05-23 11:31:16,245 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 98 to 62. [2019-05-23 11:31:16,247 INFO L146 ILogger]: Start removeUnreachable. Operand 62 states. [2019-05-23 11:31:16,248 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2019-05-23 11:31:16,250 INFO L146 ILogger]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 41 [2019-05-23 11:31:16,250 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:16,250 INFO L146 ILogger]: Abstraction has 62 states and 69 transitions. [2019-05-23 11:31:16,250 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:16,251 INFO L146 ILogger]: Start isEmpty. Operand 62 states and 69 transitions. [2019-05-23 11:31:16,252 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 48 [2019-05-23 11:31:16,252 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:16,252 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 11:31:16,253 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:16,253 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:16,253 INFO L146 ILogger]: Analyzing trace with hash 803051780, now seen corresponding path program 1 times [2019-05-23 11:31:16,254 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:16,254 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:16,254 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:16,255 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:16,255 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:16,261 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:16,261 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:16,261 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:16,273 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:16,299 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:16,299 INFO L146 ILogger]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:31:16,302 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:16,459 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 11:31:16,483 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:16,483 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:16,485 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:16,485 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:16,485 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:16,486 INFO L146 ILogger]: Start difference. First operand 62 states and 69 transitions. Second operand 4 states. [2019-05-23 11:31:16,631 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:16,632 INFO L146 ILogger]: Finished difference Result 133 states and 153 transitions. [2019-05-23 11:31:16,632 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:16,632 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 47 [2019-05-23 11:31:16,633 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:16,635 INFO L146 ILogger]: With dead ends: 133 [2019-05-23 11:31:16,635 INFO L146 ILogger]: Without dead ends: 92 [2019-05-23 11:31:16,636 INFO L146 ILogger]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:16,637 INFO L146 ILogger]: Start minimizeSevpa. Operand 92 states. [2019-05-23 11:31:16,645 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 92 to 64. [2019-05-23 11:31:16,645 INFO L146 ILogger]: Start removeUnreachable. Operand 64 states. [2019-05-23 11:31:16,646 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2019-05-23 11:31:16,647 INFO L146 ILogger]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 47 [2019-05-23 11:31:16,647 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:16,647 INFO L146 ILogger]: Abstraction has 64 states and 71 transitions. [2019-05-23 11:31:16,647 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:16,647 INFO L146 ILogger]: Start isEmpty. Operand 64 states and 71 transitions. [2019-05-23 11:31:16,649 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 53 [2019-05-23 11:31:16,650 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:16,651 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:16,651 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:16,651 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:16,652 INFO L146 ILogger]: Analyzing trace with hash -322638850, now seen corresponding path program 1 times [2019-05-23 11:31:16,652 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:16,652 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:16,653 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:16,653 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:16,653 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:16,661 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:16,661 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:16,662 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:16,673 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:16,698 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:16,699 INFO L146 ILogger]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:31:16,703 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:16,820 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 11:31:16,842 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:16,843 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:16,843 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:16,843 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:16,845 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:16,845 INFO L146 ILogger]: Start difference. First operand 64 states and 71 transitions. Second operand 4 states. [2019-05-23 11:31:16,961 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:16,962 INFO L146 ILogger]: Finished difference Result 133 states and 151 transitions. [2019-05-23 11:31:16,962 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:16,962 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 52 [2019-05-23 11:31:16,962 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:16,964 INFO L146 ILogger]: With dead ends: 133 [2019-05-23 11:31:16,964 INFO L146 ILogger]: Without dead ends: 90 [2019-05-23 11:31:16,965 INFO L146 ILogger]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 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 11:31:16,965 INFO L146 ILogger]: Start minimizeSevpa. Operand 90 states. [2019-05-23 11:31:16,974 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 90 to 66. [2019-05-23 11:31:16,974 INFO L146 ILogger]: Start removeUnreachable. Operand 66 states. [2019-05-23 11:31:16,975 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2019-05-23 11:31:16,975 INFO L146 ILogger]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 52 [2019-05-23 11:31:16,976 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:16,976 INFO L146 ILogger]: Abstraction has 66 states and 73 transitions. [2019-05-23 11:31:16,976 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:16,976 INFO L146 ILogger]: Start isEmpty. Operand 66 states and 73 transitions. [2019-05-23 11:31:16,978 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 57 [2019-05-23 11:31:16,978 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:16,978 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:16,979 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:16,979 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:16,979 INFO L146 ILogger]: Analyzing trace with hash -1475697451, now seen corresponding path program 1 times [2019-05-23 11:31:16,979 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:16,980 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:16,980 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:16,981 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:16,981 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:16,986 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:16,986 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:16,987 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:17,008 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:17,030 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:17,034 INFO L146 ILogger]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:31:17,036 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:17,095 INFO L146 ILogger]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:17,122 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:17,122 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:17,122 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:17,123 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:17,123 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:17,123 INFO L146 ILogger]: Start difference. First operand 66 states and 73 transitions. Second operand 4 states. [2019-05-23 11:31:17,250 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:17,250 INFO L146 ILogger]: Finished difference Result 137 states and 153 transitions. [2019-05-23 11:31:17,251 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:17,251 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 56 [2019-05-23 11:31:17,251 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:17,252 INFO L146 ILogger]: With dead ends: 137 [2019-05-23 11:31:17,253 INFO L146 ILogger]: Without dead ends: 92 [2019-05-23 11:31:17,253 INFO L146 ILogger]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 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 11:31:17,254 INFO L146 ILogger]: Start minimizeSevpa. Operand 92 states. [2019-05-23 11:31:17,269 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 92 to 68. [2019-05-23 11:31:17,270 INFO L146 ILogger]: Start removeUnreachable. Operand 68 states. [2019-05-23 11:31:17,273 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2019-05-23 11:31:17,274 INFO L146 ILogger]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 56 [2019-05-23 11:31:17,274 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:17,274 INFO L146 ILogger]: Abstraction has 68 states and 75 transitions. [2019-05-23 11:31:17,274 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:17,274 INFO L146 ILogger]: Start isEmpty. Operand 68 states and 75 transitions. [2019-05-23 11:31:17,279 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 60 [2019-05-23 11:31:17,279 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:17,279 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:17,279 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:17,280 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:17,280 INFO L146 ILogger]: Analyzing trace with hash 2028767442, now seen corresponding path program 1 times [2019-05-23 11:31:17,280 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:17,280 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:17,284 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:17,284 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:17,285 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:17,295 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:17,299 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:17,299 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:17,315 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:17,347 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:17,348 INFO L146 ILogger]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:31:17,350 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:17,544 INFO L146 ILogger]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:17,564 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:17,564 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:31:17,565 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:31:17,565 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:31:17,565 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:17,565 INFO L146 ILogger]: Start difference. First operand 68 states and 75 transitions. Second operand 5 states. [2019-05-23 11:31:17,903 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:17,903 INFO L146 ILogger]: Finished difference Result 152 states and 168 transitions. [2019-05-23 11:31:17,903 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:31:17,903 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 59 [2019-05-23 11:31:17,904 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:17,904 INFO L146 ILogger]: With dead ends: 152 [2019-05-23 11:31:17,905 INFO L146 ILogger]: Without dead ends: 105 [2019-05-23 11:31:17,905 INFO L146 ILogger]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:17,906 INFO L146 ILogger]: Start minimizeSevpa. Operand 105 states. [2019-05-23 11:31:17,914 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 105 to 79. [2019-05-23 11:31:17,914 INFO L146 ILogger]: Start removeUnreachable. Operand 79 states. [2019-05-23 11:31:17,916 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2019-05-23 11:31:17,916 INFO L146 ILogger]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 59 [2019-05-23 11:31:17,916 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:17,916 INFO L146 ILogger]: Abstraction has 79 states and 87 transitions. [2019-05-23 11:31:17,916 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:31:17,917 INFO L146 ILogger]: Start isEmpty. Operand 79 states and 87 transitions. [2019-05-23 11:31:17,917 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 63 [2019-05-23 11:31:17,918 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:17,918 INFO L146 ILogger]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:17,918 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:17,918 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:17,921 INFO L146 ILogger]: Analyzing trace with hash 1477363637, now seen corresponding path program 2 times [2019-05-23 11:31:17,921 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:17,921 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:17,922 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:17,922 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:17,922 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:17,928 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:17,928 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:17,928 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:17,943 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:31:17,967 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:31:17,968 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:17,969 INFO L146 ILogger]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:31:17,973 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:18,041 INFO L146 ILogger]: Checked inductivity of 8 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-05-23 11:31:18,059 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:18,059 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:31:18,060 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:31:18,060 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:31:18,060 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:18,060 INFO L146 ILogger]: Start difference. First operand 79 states and 87 transitions. Second operand 5 states. [2019-05-23 11:31:18,207 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:18,207 INFO L146 ILogger]: Finished difference Result 206 states and 230 transitions. [2019-05-23 11:31:18,210 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:31:18,210 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 62 [2019-05-23 11:31:18,210 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:18,211 INFO L146 ILogger]: With dead ends: 206 [2019-05-23 11:31:18,211 INFO L146 ILogger]: Without dead ends: 148 [2019-05-23 11:31:18,212 INFO L146 ILogger]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:18,213 INFO L146 ILogger]: Start minimizeSevpa. Operand 148 states. [2019-05-23 11:31:18,223 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 148 to 109. [2019-05-23 11:31:18,223 INFO L146 ILogger]: Start removeUnreachable. Operand 109 states. [2019-05-23 11:31:18,224 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2019-05-23 11:31:18,224 INFO L146 ILogger]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 62 [2019-05-23 11:31:18,224 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:18,224 INFO L146 ILogger]: Abstraction has 109 states and 121 transitions. [2019-05-23 11:31:18,225 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:31:18,225 INFO L146 ILogger]: Start isEmpty. Operand 109 states and 121 transitions. [2019-05-23 11:31:18,226 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 73 [2019-05-23 11:31:18,226 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:18,226 INFO L146 ILogger]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:18,226 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:18,227 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:18,227 INFO L146 ILogger]: Analyzing trace with hash 276736684, now seen corresponding path program 3 times [2019-05-23 11:31:18,227 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:18,227 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:18,228 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:18,228 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:18,228 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:18,233 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:18,233 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:18,233 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:18,252 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:31:18,271 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-05-23 11:31:18,271 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:18,272 INFO L146 ILogger]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:31:18,275 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:18,611 INFO L146 ILogger]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-05-23 11:31:18,643 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:18,644 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:31:18,644 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:31:18,644 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:31:18,645 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:18,645 INFO L146 ILogger]: Start difference. First operand 109 states and 121 transitions. Second operand 5 states. [2019-05-23 11:31:19,015 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:19,016 INFO L146 ILogger]: Finished difference Result 333 states and 375 transitions. [2019-05-23 11:31:19,017 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:31:19,017 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 72 [2019-05-23 11:31:19,018 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:19,021 INFO L146 ILogger]: With dead ends: 333 [2019-05-23 11:31:19,021 INFO L146 ILogger]: Without dead ends: 276 [2019-05-23 11:31:19,022 INFO L146 ILogger]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:19,022 INFO L146 ILogger]: Start minimizeSevpa. Operand 276 states. [2019-05-23 11:31:19,038 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 276 to 140. [2019-05-23 11:31:19,039 INFO L146 ILogger]: Start removeUnreachable. Operand 140 states. [2019-05-23 11:31:19,039 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 140 states to 140 states and 156 transitions. [2019-05-23 11:31:19,040 INFO L146 ILogger]: Start accepts. Automaton has 140 states and 156 transitions. Word has length 72 [2019-05-23 11:31:19,040 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:19,040 INFO L146 ILogger]: Abstraction has 140 states and 156 transitions. [2019-05-23 11:31:19,040 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:31:19,040 INFO L146 ILogger]: Start isEmpty. Operand 140 states and 156 transitions. [2019-05-23 11:31:19,042 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 104 [2019-05-23 11:31:19,042 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:19,043 INFO L146 ILogger]: trace histogram [8, 8, 8, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:19,043 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:19,043 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:19,043 INFO L146 ILogger]: Analyzing trace with hash -369004021, now seen corresponding path program 4 times [2019-05-23 11:31:19,044 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:19,044 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:19,045 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:19,045 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:19,045 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:19,050 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:19,050 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:19,050 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:19,065 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:31:19,096 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:31:19,097 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:19,098 INFO L146 ILogger]: Trace formula consists of 159 conjuncts, 35 conjunts are in the unsatisfiable core [2019-05-23 11:31:19,110 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:19,303 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 39 treesize of output 35 [2019-05-23 11:31:19,303 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:19,341 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:19,342 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:19,342 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:51 [2019-05-23 11:31:19,461 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:19,462 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 65 treesize of output 194 [2019-05-23 11:31:19,463 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:19,538 INFO L146 ILogger]: treesize reduction 130, result has 36.0 percent of original size [2019-05-23 11:31:19,540 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 11:31:19,541 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:77, output treesize:73 [2019-05-23 11:31:20,277 WARN L146 ILogger]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-05-23 11:31:20,277 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:20,278 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 438 [2019-05-23 11:31:20,279 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:20,369 INFO L146 ILogger]: treesize reduction 282, result has 27.7 percent of original size [2019-05-23 11:31:20,371 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 11:31:20,372 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:112, output treesize:108 [2019-05-23 11:31:22,169 WARN L146 ILogger]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 45 [2019-05-23 11:31:22,388 WARN L146 ILogger]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-05-23 11:31:22,388 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:22,389 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 135 treesize of output 750 [2019-05-23 11:31:22,391 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:22,455 INFO L146 ILogger]: treesize reduction 438, result has 23.8 percent of original size [2019-05-23 11:31:22,456 INFO L146 ILogger]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-05-23 11:31:22,457 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 5 variables, input treesize:141, output treesize:137 [2019-05-23 11:31:22,629 WARN L146 ILogger]: Spent 144.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2019-05-23 11:31:22,776 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:22,776 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 438 [2019-05-23 11:31:22,778 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:22,836 INFO L146 ILogger]: treesize reduction 282, result has 26.6 percent of original size [2019-05-23 11:31:22,837 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 11:31:22,837 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:106, output treesize:102 [2019-05-23 11:31:27,032 WARN L146 ILogger]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 47 [2019-05-23 11:31:27,163 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:27,164 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 135 treesize of output 750 [2019-05-23 11:31:27,166 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:27,264 INFO L146 ILogger]: treesize reduction 438, result has 23.8 percent of original size [2019-05-23 11:31:27,265 INFO L146 ILogger]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-05-23 11:31:27,265 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 5 variables, input treesize:141, output treesize:137 [2019-05-23 11:31:57,975 WARN L146 ILogger]: Spent 5.84 s on a formula simplification that was a NOOP. DAG size: 53 [2019-05-23 11:31:58,215 WARN L146 ILogger]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-05-23 11:31:58,216 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:58,216 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 170 treesize of output 1126 [2019-05-23 11:31:58,218 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:58,317 INFO L146 ILogger]: treesize reduction 594, result has 22.5 percent of original size [2019-05-23 11:31:58,319 INFO L146 ILogger]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-05-23 11:31:58,319 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 6 variables, input treesize:176, output treesize:172