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/max-3-n-u_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:31:42,731 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:31:42,733 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:31:42,745 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:31:42,745 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:31:42,746 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:31:42,748 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:31:42,749 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:31:42,751 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:31:42,752 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:31:42,753 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:31:42,753 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:31:42,755 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:31:42,756 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:31:42,757 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:31:42,758 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:31:42,758 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:31:42,760 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:31:42,762 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:31:42,764 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:31:42,765 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:31:42,766 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:31:42,769 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:31:42,769 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:31:42,769 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:31:42,770 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:31:42,770 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:31:42,771 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:31:42,772 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:31:42,772 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:31:42,773 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:31:42,774 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:31:42,775 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:31:42,775 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:31:42,776 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:31:42,776 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:31:42,776 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:31:42,777 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:31:42,778 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:31:42,778 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:31:42,792 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:31:42,793 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:31:42,794 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:31:42,794 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:31:42,794 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:31:42,795 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:31:42,795 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:31:42,795 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:31:42,795 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:31:42,795 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:31:42,796 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:31:42,796 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:31:42,796 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:31:42,796 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:31:42,796 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:31:42,797 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:31:42,797 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:31:42,797 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:31:42,797 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:31:42,797 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:31:42,797 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:31:42,798 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:31:42,798 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:31:42,798 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:31:42,798 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:31:42,799 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:31:42,799 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:31:42,799 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:31:42,799 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 11:31:42,830 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:31:42,842 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:31:42,845 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:31:42,847 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:31:42,847 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:31:42,848 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-multidimensional/max-3-n-u_true-unreach-call.i [2019-05-23 11:31:42,907 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c4c16f7/a9da6df68a164fceb71b138090613618/FLAG941e430bf [2019-05-23 11:31:43,288 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:31:43,290 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-multidimensional/max-3-n-u_true-unreach-call.i [2019-05-23 11:31:43,296 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c4c16f7/a9da6df68a164fceb71b138090613618/FLAG941e430bf [2019-05-23 11:31:43,679 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c4c16f7/a9da6df68a164fceb71b138090613618 [2019-05-23 11:31:43,687 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:31:43,689 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:31:43,690 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:31:43,690 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:31:43,693 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:31:43,694 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:31:43" (1/1) ... [2019-05-23 11:31:43,697 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbf7bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:43, skipping insertion in model container [2019-05-23 11:31:43,697 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:31:43" (1/1) ... [2019-05-23 11:31:43,704 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:31:43,726 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:31:43,949 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:31:43,954 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:31:43,995 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:31:44,019 INFO L146 ILogger]: Completed translation [2019-05-23 11:31:44,020 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:44 WrapperNode [2019-05-23 11:31:44,020 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:31:44,021 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:31:44,021 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:31:44,021 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:31:44,030 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:44" (1/1) ... [2019-05-23 11:31:44,039 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:44" (1/1) ... [2019-05-23 11:31:44,065 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:31:44,067 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:31:44,067 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:31:44,067 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:31:44,077 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:44" (1/1) ... [2019-05-23 11:31:44,077 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:44" (1/1) ... [2019-05-23 11:31:44,079 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:44" (1/1) ... [2019-05-23 11:31:44,080 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:44" (1/1) ... [2019-05-23 11:31:44,086 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:44" (1/1) ... [2019-05-23 11:31:44,180 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:44" (1/1) ... [2019-05-23 11:31:44,182 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:44" (1/1) ... [2019-05-23 11:31:44,187 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:31:44,187 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:31:44,187 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:31:44,188 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:31:44,188 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:44" (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 11:31:44,243 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:31:44,243 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:31:44,244 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:31:44,244 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:31:44,244 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:31:44,244 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:31:44,758 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:31:44,759 INFO L146 ILogger]: Removed 15 assume(true) statements. [2019-05-23 11:31:44,760 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:31:44 BoogieIcfgContainer [2019-05-23 11:31:44,760 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:31:44,761 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:31:44,761 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:31:44,764 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:31:44,764 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:31:43" (1/3) ... [2019-05-23 11:31:44,765 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66022a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:31:44, skipping insertion in model container [2019-05-23 11:31:44,765 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:44" (2/3) ... [2019-05-23 11:31:44,766 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66022a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:31:44, skipping insertion in model container [2019-05-23 11:31:44,766 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:31:44" (3/3) ... [2019-05-23 11:31:44,768 INFO L146 ILogger]: Analyzing ICFG max-3-n-u_true-unreach-call.i [2019-05-23 11:31:44,776 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:31:44,783 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:31:44,799 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:31:44,831 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:31:44,832 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:31:44,832 INFO L146 ILogger]: Hoare is true [2019-05-23 11:31:44,832 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:31:44,832 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:31:44,833 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:31:44,833 INFO L146 ILogger]: Difference is false [2019-05-23 11:31:44,833 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:31:44,833 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:31:44,850 INFO L146 ILogger]: Start isEmpty. Operand 75 states. [2019-05-23 11:31:44,858 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 39 [2019-05-23 11:31:44,858 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:44,859 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] [2019-05-23 11:31:44,861 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:44,867 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:44,867 INFO L146 ILogger]: Analyzing trace with hash 1733814284, now seen corresponding path program 1 times [2019-05-23 11:31:44,869 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:44,870 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:44,908 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:44,909 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:44,910 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:44,946 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:44,946 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:44,946 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 11:31:44,957 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:44,986 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:44,988 INFO L146 ILogger]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2019-05-23 11:31:44,995 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:45,018 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 11:31:45,043 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:45,044 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:31:45,047 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:31:45,058 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:31:45,059 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:31:45,061 INFO L146 ILogger]: Start difference. First operand 75 states. Second operand 2 states. [2019-05-23 11:31:45,084 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:45,084 INFO L146 ILogger]: Finished difference Result 135 states and 173 transitions. [2019-05-23 11:31:45,085 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:31:45,086 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 38 [2019-05-23 11:31:45,087 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:45,098 INFO L146 ILogger]: With dead ends: 135 [2019-05-23 11:31:45,101 INFO L146 ILogger]: Without dead ends: 69 [2019-05-23 11:31:45,105 INFO L146 ILogger]: 0 DeclaredPredicates, 37 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:31:45,120 INFO L146 ILogger]: Start minimizeSevpa. Operand 69 states. [2019-05-23 11:31:45,138 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 69 to 69. [2019-05-23 11:31:45,140 INFO L146 ILogger]: Start removeUnreachable. Operand 69 states. [2019-05-23 11:31:45,142 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2019-05-23 11:31:45,143 INFO L146 ILogger]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 38 [2019-05-23 11:31:45,144 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:45,144 INFO L146 ILogger]: Abstraction has 69 states and 78 transitions. [2019-05-23 11:31:45,144 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:31:45,144 INFO L146 ILogger]: Start isEmpty. Operand 69 states and 78 transitions. [2019-05-23 11:31:45,146 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 39 [2019-05-23 11:31:45,146 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:45,146 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] [2019-05-23 11:31:45,147 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:45,147 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:45,147 INFO L146 ILogger]: Analyzing trace with hash -551417350, now seen corresponding path program 1 times [2019-05-23 11:31:45,147 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:45,148 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:45,149 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:45,149 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:45,149 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:45,155 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:45,155 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:45,155 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 11:31:45,167 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:45,192 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:45,193 INFO L146 ILogger]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:31:45,196 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:45,382 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 11:31:45,412 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:45,413 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:45,414 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:45,418 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:45,418 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:45,418 INFO L146 ILogger]: Start difference. First operand 69 states and 78 transitions. Second operand 4 states. [2019-05-23 11:31:45,788 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:45,788 INFO L146 ILogger]: Finished difference Result 156 states and 180 transitions. [2019-05-23 11:31:45,790 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:45,790 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 38 [2019-05-23 11:31:45,791 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:45,793 INFO L146 ILogger]: With dead ends: 156 [2019-05-23 11:31:45,793 INFO L146 ILogger]: Without dead ends: 114 [2019-05-23 11:31:45,794 INFO L146 ILogger]: 0 DeclaredPredicates, 37 GetRequests, 35 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 11:31:45,795 INFO L146 ILogger]: Start minimizeSevpa. Operand 114 states. [2019-05-23 11:31:45,809 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 114 to 71. [2019-05-23 11:31:45,809 INFO L146 ILogger]: Start removeUnreachable. Operand 71 states. [2019-05-23 11:31:45,812 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2019-05-23 11:31:45,812 INFO L146 ILogger]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 38 [2019-05-23 11:31:45,813 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:45,813 INFO L146 ILogger]: Abstraction has 71 states and 80 transitions. [2019-05-23 11:31:45,813 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:45,813 INFO L146 ILogger]: Start isEmpty. Operand 71 states and 80 transitions. [2019-05-23 11:31:45,815 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 49 [2019-05-23 11:31:45,815 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:45,816 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] [2019-05-23 11:31:45,816 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:45,816 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:45,817 INFO L146 ILogger]: Analyzing trace with hash 615404998, now seen corresponding path program 1 times [2019-05-23 11:31:45,817 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:45,817 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:45,819 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:45,819 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:45,819 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:45,830 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:45,830 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:45,830 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 11:31:45,850 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:45,884 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:45,885 INFO L146 ILogger]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:31:45,887 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:45,937 INFO L146 ILogger]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:31:45,960 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:45,961 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:45,961 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:45,961 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:45,962 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:45,962 INFO L146 ILogger]: Start difference. First operand 71 states and 80 transitions. Second operand 4 states. [2019-05-23 11:31:46,206 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:46,206 INFO L146 ILogger]: Finished difference Result 163 states and 188 transitions. [2019-05-23 11:31:46,208 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:46,208 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 48 [2019-05-23 11:31:46,209 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:46,210 INFO L146 ILogger]: With dead ends: 163 [2019-05-23 11:31:46,210 INFO L146 ILogger]: Without dead ends: 108 [2019-05-23 11:31:46,211 INFO L146 ILogger]: 0 DeclaredPredicates, 47 GetRequests, 45 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 11:31:46,211 INFO L146 ILogger]: Start minimizeSevpa. Operand 108 states. [2019-05-23 11:31:46,220 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 108 to 74. [2019-05-23 11:31:46,220 INFO L146 ILogger]: Start removeUnreachable. Operand 74 states. [2019-05-23 11:31:46,221 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2019-05-23 11:31:46,222 INFO L146 ILogger]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 48 [2019-05-23 11:31:46,222 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:46,222 INFO L146 ILogger]: Abstraction has 74 states and 83 transitions. [2019-05-23 11:31:46,222 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:46,222 INFO L146 ILogger]: Start isEmpty. Operand 74 states and 83 transitions. [2019-05-23 11:31:46,224 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 57 [2019-05-23 11:31:46,224 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:46,224 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 11:31:46,225 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:46,225 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:46,225 INFO L146 ILogger]: Analyzing trace with hash 1822918245, now seen corresponding path program 1 times [2019-05-23 11:31:46,225 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:46,226 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:46,227 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:46,227 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:46,227 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:46,232 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:46,232 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:46,233 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:31:46,249 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:46,268 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:46,269 INFO L146 ILogger]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:31:46,272 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:46,378 INFO L146 ILogger]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:31:46,405 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:46,405 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:46,406 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:46,406 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:46,406 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:46,407 INFO L146 ILogger]: Start difference. First operand 74 states and 83 transitions. Second operand 4 states. [2019-05-23 11:31:46,585 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:46,585 INFO L146 ILogger]: Finished difference Result 166 states and 188 transitions. [2019-05-23 11:31:46,586 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:46,587 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 56 [2019-05-23 11:31:46,587 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:46,589 INFO L146 ILogger]: With dead ends: 166 [2019-05-23 11:31:46,589 INFO L146 ILogger]: Without dead ends: 108 [2019-05-23 11:31:46,590 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 11:31:46,590 INFO L146 ILogger]: Start minimizeSevpa. Operand 108 states. [2019-05-23 11:31:46,606 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 108 to 77. [2019-05-23 11:31:46,607 INFO L146 ILogger]: Start removeUnreachable. Operand 77 states. [2019-05-23 11:31:46,610 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2019-05-23 11:31:46,610 INFO L146 ILogger]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 56 [2019-05-23 11:31:46,611 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:46,611 INFO L146 ILogger]: Abstraction has 77 states and 86 transitions. [2019-05-23 11:31:46,611 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:46,611 INFO L146 ILogger]: Start isEmpty. Operand 77 states and 86 transitions. [2019-05-23 11:31:46,615 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 67 [2019-05-23 11:31:46,616 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:46,616 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:46,616 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:46,616 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:46,616 INFO L146 ILogger]: Analyzing trace with hash -286167531, now seen corresponding path program 1 times [2019-05-23 11:31:46,620 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:46,620 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:46,621 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:46,622 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:46,622 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:46,630 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:46,630 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:46,630 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 11:31:46,651 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:46,679 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:46,680 INFO L146 ILogger]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:31:46,686 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:46,893 INFO L146 ILogger]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-05-23 11:31:46,924 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:46,924 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:31:46,925 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:31:46,925 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:31:46,926 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:46,926 INFO L146 ILogger]: Start difference. First operand 77 states and 86 transitions. Second operand 5 states. [2019-05-23 11:31:47,131 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:47,131 INFO L146 ILogger]: Finished difference Result 193 states and 216 transitions. [2019-05-23 11:31:47,131 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:31:47,131 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 66 [2019-05-23 11:31:47,132 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:47,133 INFO L146 ILogger]: With dead ends: 193 [2019-05-23 11:31:47,133 INFO L146 ILogger]: Without dead ends: 132 [2019-05-23 11:31:47,135 INFO L146 ILogger]: 0 DeclaredPredicates, 65 GetRequests, 62 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 11:31:47,136 INFO L146 ILogger]: Start minimizeSevpa. Operand 132 states. [2019-05-23 11:31:47,144 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 132 to 99. [2019-05-23 11:31:47,144 INFO L146 ILogger]: Start removeUnreachable. Operand 99 states. [2019-05-23 11:31:47,146 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 99 states to 99 states and 110 transitions. [2019-05-23 11:31:47,146 INFO L146 ILogger]: Start accepts. Automaton has 99 states and 110 transitions. Word has length 66 [2019-05-23 11:31:47,146 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:47,146 INFO L146 ILogger]: Abstraction has 99 states and 110 transitions. [2019-05-23 11:31:47,146 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:31:47,147 INFO L146 ILogger]: Start isEmpty. Operand 99 states and 110 transitions. [2019-05-23 11:31:47,148 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 77 [2019-05-23 11:31:47,148 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:47,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:47,148 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:47,149 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:47,149 INFO L146 ILogger]: Analyzing trace with hash 1068297125, now seen corresponding path program 2 times [2019-05-23 11:31:47,149 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:47,149 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:47,150 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:47,150 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:47,150 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:47,155 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:47,155 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:47,155 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 11:31:47,176 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:31:47,192 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-05-23 11:31:47,193 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:47,194 INFO L146 ILogger]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core [2019-05-23 11:31:47,201 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:47,429 INFO L146 ILogger]: treesize reduction 17, result has 15.0 percent of original size [2019-05-23 11:31:47,430 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 10 [2019-05-23 11:31:47,431 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:47,434 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:47,435 INFO L146 ILogger]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:47,435 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 4 variables, input treesize:27, output treesize:3 [2019-05-23 11:31:47,504 INFO L146 ILogger]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-05-23 11:31:47,529 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:47,530 INFO L146 ILogger]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-05-23 11:31:47,530 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:31:47,531 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:31:47,531 INFO L146 ILogger]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:31:47,531 INFO L146 ILogger]: Start difference. First operand 99 states and 110 transitions. Second operand 11 states. [2019-05-23 11:31:48,403 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:48,403 INFO L146 ILogger]: Finished difference Result 207 states and 230 transitions. [2019-05-23 11:31:48,407 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:31:48,407 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 76 [2019-05-23 11:31:48,408 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:48,409 INFO L146 ILogger]: With dead ends: 207 [2019-05-23 11:31:48,409 INFO L146 ILogger]: Without dead ends: 205 [2019-05-23 11:31:48,412 INFO L146 ILogger]: 0 DeclaredPredicates, 82 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2019-05-23 11:31:48,413 INFO L146 ILogger]: Start minimizeSevpa. Operand 205 states. [2019-05-23 11:31:48,430 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 205 to 132. [2019-05-23 11:31:48,431 INFO L146 ILogger]: Start removeUnreachable. Operand 132 states. [2019-05-23 11:31:48,435 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 132 states to 132 states and 148 transitions. [2019-05-23 11:31:48,435 INFO L146 ILogger]: Start accepts. Automaton has 132 states and 148 transitions. Word has length 76 [2019-05-23 11:31:48,435 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:48,435 INFO L146 ILogger]: Abstraction has 132 states and 148 transitions. [2019-05-23 11:31:48,436 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:31:48,436 INFO L146 ILogger]: Start isEmpty. Operand 132 states and 148 transitions. [2019-05-23 11:31:48,437 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 80 [2019-05-23 11:31:48,437 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:48,437 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:48,440 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:48,440 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:48,440 INFO L146 ILogger]: Analyzing trace with hash -1213012682, now seen corresponding path program 1 times [2019-05-23 11:31:48,440 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:48,440 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:48,441 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:48,441 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:48,442 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:48,446 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:48,446 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:48,446 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 11:31:48,461 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:48,484 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:48,485 INFO L146 ILogger]: Trace formula consists of 132 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:31:48,488 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:48,825 INFO L146 ILogger]: Checked inductivity of 17 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-05-23 11:31:48,845 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:48,845 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-05-23 11:31:48,846 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:31:48,846 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:31:48,846 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:31:48,846 INFO L146 ILogger]: Start difference. First operand 132 states and 148 transitions. Second operand 6 states. [2019-05-23 11:31:49,068 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:49,068 INFO L146 ILogger]: Finished difference Result 315 states and 354 transitions. [2019-05-23 11:31:49,068 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:31:49,068 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 79 [2019-05-23 11:31:49,069 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:49,070 INFO L146 ILogger]: With dead ends: 315 [2019-05-23 11:31:49,071 INFO L146 ILogger]: Without dead ends: 199 [2019-05-23 11:31:49,072 INFO L146 ILogger]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:31:49,072 INFO L146 ILogger]: Start minimizeSevpa. Operand 199 states. [2019-05-23 11:31:49,086 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 199 to 159. [2019-05-23 11:31:49,087 INFO L146 ILogger]: Start removeUnreachable. Operand 159 states. [2019-05-23 11:31:49,088 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 159 states to 159 states and 178 transitions. [2019-05-23 11:31:49,088 INFO L146 ILogger]: Start accepts. Automaton has 159 states and 178 transitions. Word has length 79 [2019-05-23 11:31:49,088 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:49,088 INFO L146 ILogger]: Abstraction has 159 states and 178 transitions. [2019-05-23 11:31:49,089 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:31:49,089 INFO L146 ILogger]: Start isEmpty. Operand 159 states and 178 transitions. [2019-05-23 11:31:49,090 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 90 [2019-05-23 11:31:49,090 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:49,090 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:49,091 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:49,091 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:49,091 INFO L146 ILogger]: Analyzing trace with hash -58213610, now seen corresponding path program 2 times [2019-05-23 11:31:49,091 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:49,091 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:49,092 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:49,092 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:49,093 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:49,097 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:49,097 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:49,097 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 11:31:49,109 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:31:49,134 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:31:49,135 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:49,136 INFO L146 ILogger]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:31:49,139 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:49,557 INFO L146 ILogger]: Checked inductivity of 38 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-05-23 11:31:49,576 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:49,576 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:31:49,577 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:31:49,577 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:31:49,577 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:31:49,578 INFO L146 ILogger]: Start difference. First operand 159 states and 178 transitions. Second operand 7 states. [2019-05-23 11:31:50,009 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:50,009 INFO L146 ILogger]: Finished difference Result 371 states and 415 transitions. [2019-05-23 11:31:50,010 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:31:50,010 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 89 [2019-05-23 11:31:50,010 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:50,011 INFO L146 ILogger]: With dead ends: 371 [2019-05-23 11:31:50,011 INFO L146 ILogger]: Without dead ends: 228 [2019-05-23 11:31:50,013 INFO L146 ILogger]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:31:50,013 INFO L146 ILogger]: Start minimizeSevpa. Operand 228 states. [2019-05-23 11:31:50,023 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 228 to 186. [2019-05-23 11:31:50,024 INFO L146 ILogger]: Start removeUnreachable. Operand 186 states. [2019-05-23 11:31:50,025 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 186 states to 186 states and 208 transitions. [2019-05-23 11:31:50,025 INFO L146 ILogger]: Start accepts. Automaton has 186 states and 208 transitions. Word has length 89 [2019-05-23 11:31:50,025 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:50,025 INFO L146 ILogger]: Abstraction has 186 states and 208 transitions. [2019-05-23 11:31:50,025 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:31:50,025 INFO L146 ILogger]: Start isEmpty. Operand 186 states and 208 transitions. [2019-05-23 11:31:50,027 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 100 [2019-05-23 11:31:50,027 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:50,027 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:50,027 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:50,027 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:50,028 INFO L146 ILogger]: Analyzing trace with hash -95464970, now seen corresponding path program 3 times [2019-05-23 11:31:50,028 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:50,028 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:50,029 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:50,029 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:50,029 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:50,033 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:50,034 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:50,034 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:50,051 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:31:50,069 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-05-23 11:31:50,070 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:50,071 INFO L146 ILogger]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:31:50,073 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:50,175 INFO L146 ILogger]: Checked inductivity of 69 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-05-23 11:31:50,194 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:50,194 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:31:50,194 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:31:50,195 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:31:50,195 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:50,195 INFO L146 ILogger]: Start difference. First operand 186 states and 208 transitions. Second operand 5 states. [2019-05-23 11:31:50,452 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:50,453 INFO L146 ILogger]: Finished difference Result 613 states and 695 transitions. [2019-05-23 11:31:50,453 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:31:50,454 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 99 [2019-05-23 11:31:50,454 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:50,458 INFO L146 ILogger]: With dead ends: 613 [2019-05-23 11:31:50,459 INFO L146 ILogger]: Without dead ends: 472 [2019-05-23 11:31:50,460 INFO L146 ILogger]: 0 DeclaredPredicates, 98 GetRequests, 95 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 11:31:50,460 INFO L146 ILogger]: Start minimizeSevpa. Operand 472 states. [2019-05-23 11:31:50,478 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 472 to 286. [2019-05-23 11:31:50,478 INFO L146 ILogger]: Start removeUnreachable. Operand 286 states. [2019-05-23 11:31:50,479 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 286 states to 286 states and 322 transitions. [2019-05-23 11:31:50,480 INFO L146 ILogger]: Start accepts. Automaton has 286 states and 322 transitions. Word has length 99 [2019-05-23 11:31:50,480 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:50,480 INFO L146 ILogger]: Abstraction has 286 states and 322 transitions. [2019-05-23 11:31:50,480 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:31:50,481 INFO L146 ILogger]: Start isEmpty. Operand 286 states and 322 transitions. [2019-05-23 11:31:50,490 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 158 [2019-05-23 11:31:50,492 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:50,492 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:50,493 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:50,496 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:50,496 INFO L146 ILogger]: Analyzing trace with hash -1538180595, now seen corresponding path program 4 times [2019-05-23 11:31:50,497 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:50,497 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:50,498 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:50,499 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:50,499 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:50,508 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:50,508 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:50,508 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:50,525 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:31:50,567 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:31:50,567 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:50,568 INFO L146 ILogger]: Trace formula consists of 222 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:31:50,570 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:50,681 INFO L146 ILogger]: treesize reduction 17, result has 15.0 percent of original size [2019-05-23 11:31:50,682 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 10 [2019-05-23 11:31:50,683 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:31:50,684 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:31:50,685 INFO L146 ILogger]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:31:50,685 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 4 variables, input treesize:27, output treesize:3 [2019-05-23 11:31:50,720 INFO L146 ILogger]: Checked inductivity of 335 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2019-05-23 11:31:50,748 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:50,749 INFO L146 ILogger]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-05-23 11:31:50,749 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:31:50,749 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:31:50,750 INFO L146 ILogger]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:31:50,750 INFO L146 ILogger]: Start difference. First operand 286 states and 322 transitions. Second operand 9 states. [2019-05-23 11:31:51,283 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:51,283 INFO L146 ILogger]: Finished difference Result 506 states and 570 transitions. [2019-05-23 11:31:51,283 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-05-23 11:31:51,284 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 157 [2019-05-23 11:31:51,284 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:51,286 INFO L146 ILogger]: With dead ends: 506 [2019-05-23 11:31:51,286 INFO L146 ILogger]: Without dead ends: 373 [2019-05-23 11:31:51,287 INFO L146 ILogger]: 0 DeclaredPredicates, 162 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:31:51,288 INFO L146 ILogger]: Start minimizeSevpa. Operand 373 states. [2019-05-23 11:31:51,299 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 373 to 290. [2019-05-23 11:31:51,299 INFO L146 ILogger]: Start removeUnreachable. Operand 290 states. [2019-05-23 11:31:51,300 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 290 states to 290 states and 326 transitions. [2019-05-23 11:31:51,300 INFO L146 ILogger]: Start accepts. Automaton has 290 states and 326 transitions. Word has length 157 [2019-05-23 11:31:51,301 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:51,301 INFO L146 ILogger]: Abstraction has 290 states and 326 transitions. [2019-05-23 11:31:51,301 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:31:51,301 INFO L146 ILogger]: Start isEmpty. Operand 290 states and 326 transitions. [2019-05-23 11:31:51,303 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 158 [2019-05-23 11:31:51,303 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:51,303 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:51,303 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:51,304 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:51,304 INFO L146 ILogger]: Analyzing trace with hash -1866275203, now seen corresponding path program 5 times [2019-05-23 11:31:51,304 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:51,304 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:51,305 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:51,305 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:51,305 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:51,310 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:51,310 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:51,310 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:51,331 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:31:56,614 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2019-05-23 11:31:56,614 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:56,617 INFO L146 ILogger]: Trace formula consists of 244 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:31:56,619 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:56,753 INFO L146 ILogger]: Checked inductivity of 335 backedges. 97 proven. 34 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2019-05-23 11:31:56,774 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:56,774 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-05-23 11:31:56,774 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:31:56,775 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:31:56,775 INFO L146 ILogger]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:31:56,775 INFO L146 ILogger]: Start difference. First operand 290 states and 326 transitions. Second operand 8 states. [2019-05-23 11:31:57,323 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:57,324 INFO L146 ILogger]: Finished difference Result 664 states and 748 transitions. [2019-05-23 11:31:57,324 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:31:57,324 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 157 [2019-05-23 11:31:57,325 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:57,327 INFO L146 ILogger]: With dead ends: 664 [2019-05-23 11:31:57,327 INFO L146 ILogger]: Without dead ends: 393 [2019-05-23 11:31:57,328 INFO L146 ILogger]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:31:57,329 INFO L146 ILogger]: Start minimizeSevpa. Operand 393 states. [2019-05-23 11:31:57,351 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 393 to 336. [2019-05-23 11:31:57,351 INFO L146 ILogger]: Start removeUnreachable. Operand 336 states. [2019-05-23 11:31:57,353 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 336 states to 336 states and 377 transitions. [2019-05-23 11:31:57,353 INFO L146 ILogger]: Start accepts. Automaton has 336 states and 377 transitions. Word has length 157 [2019-05-23 11:31:57,354 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:57,354 INFO L146 ILogger]: Abstraction has 336 states and 377 transitions. [2019-05-23 11:31:57,354 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:31:57,354 INFO L146 ILogger]: Start isEmpty. Operand 336 states and 377 transitions. [2019-05-23 11:31:57,357 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 178 [2019-05-23 11:31:57,357 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:57,358 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:57,358 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:57,359 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:57,359 INFO L146 ILogger]: Analyzing trace with hash -1709042065, now seen corresponding path program 6 times [2019-05-23 11:31:57,359 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:57,359 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:57,360 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:57,361 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:57,361 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:57,367 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:57,368 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:57,371 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:57,397 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:31:57,430 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2019-05-23 11:31:57,430 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:57,432 INFO L146 ILogger]: Trace formula consists of 90 conjuncts, 21 conjunts are in the unsatisfiable core [2019-05-23 11:31:57,437 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:57,916 WARN L146 ILogger]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 27