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/add-2-n-u_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:30:35,678 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:30:35,680 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:30:35,694 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:30:35,694 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:30:35,695 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:30:35,697 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:30:35,699 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:30:35,701 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:30:35,702 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:30:35,703 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:30:35,703 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:30:35,704 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:30:35,705 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:30:35,706 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:30:35,707 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:30:35,708 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:30:35,710 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:30:35,712 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:30:35,714 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:30:35,715 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:30:35,716 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:30:35,718 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:30:35,719 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:30:35,719 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:30:35,720 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:30:35,720 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:30:35,723 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:30:35,723 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:30:35,724 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:30:35,726 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:30:35,729 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:30:35,730 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:30:35,730 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:30:35,732 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:30:35,732 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:30:35,732 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:30:35,733 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:30:35,736 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:30:35,736 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:30:35,764 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:30:35,764 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:30:35,766 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:30:35,766 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:30:35,766 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:30:35,766 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:30:35,766 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:30:35,767 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:30:35,767 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:30:35,767 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:30:35,767 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:30:35,767 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:30:35,768 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:30:35,768 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:30:35,768 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:30:35,768 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:30:35,768 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:30:35,769 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:30:35,769 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:30:35,769 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:30:35,769 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:30:35,769 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:30:35,770 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:30:35,770 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:30:35,770 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:30:35,770 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:30:35,770 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:30:35,771 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:30:35,771 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 11:30:35,804 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:30:35,817 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:30:35,821 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:30:35,823 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:30:35,823 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:30:35,824 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-multidimensional/add-2-n-u_true-unreach-call.i [2019-05-23 11:30:35,875 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1e8d15a/7a4c2ed1a11549b2892f73135bd981d8/FLAG746bfa30a [2019-05-23 11:30:36,322 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:30:36,323 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-multidimensional/add-2-n-u_true-unreach-call.i [2019-05-23 11:30:36,329 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1e8d15a/7a4c2ed1a11549b2892f73135bd981d8/FLAG746bfa30a [2019-05-23 11:30:36,702 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1e8d15a/7a4c2ed1a11549b2892f73135bd981d8 [2019-05-23 11:30:36,712 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:30:36,713 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:30:36,714 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:30:36,714 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:30:36,718 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:30:36,719 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:30:36" (1/1) ... [2019-05-23 11:30:36,722 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dcf5150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:36, skipping insertion in model container [2019-05-23 11:30:36,722 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:30:36" (1/1) ... [2019-05-23 11:30:36,730 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:30:36,751 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:30:36,967 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:30:36,973 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:30:36,999 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:30:37,020 INFO L146 ILogger]: Completed translation [2019-05-23 11:30:37,021 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:37 WrapperNode [2019-05-23 11:30:37,021 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:30:37,022 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:30:37,022 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:30:37,022 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:30:37,030 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:37" (1/1) ... [2019-05-23 11:30:37,046 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:37" (1/1) ... [2019-05-23 11:30:37,077 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:30:37,078 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:30:37,078 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:30:37,078 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:30:37,085 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:37" (1/1) ... [2019-05-23 11:30:37,086 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:37" (1/1) ... [2019-05-23 11:30:37,088 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:37" (1/1) ... [2019-05-23 11:30:37,088 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:37" (1/1) ... [2019-05-23 11:30:37,095 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:37" (1/1) ... [2019-05-23 11:30:37,193 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:37" (1/1) ... [2019-05-23 11:30:37,195 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:37" (1/1) ... [2019-05-23 11:30:37,204 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:30:37,205 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:30:37,205 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:30:37,205 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:30:37,206 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:37" (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 11:30:37,253 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:30:37,253 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:30:37,253 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:30:37,253 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:30:37,254 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:30:37,254 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:30:37,782 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:30:37,783 INFO L146 ILogger]: Removed 12 assume(true) statements. [2019-05-23 11:30:37,784 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:30:37 BoogieIcfgContainer [2019-05-23 11:30:37,784 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:30:37,785 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:30:37,785 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:30:37,788 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:30:37,788 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:30:36" (1/3) ... [2019-05-23 11:30:37,789 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dae50d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:30:37, skipping insertion in model container [2019-05-23 11:30:37,789 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:30:37" (2/3) ... [2019-05-23 11:30:37,789 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dae50d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:30:37, skipping insertion in model container [2019-05-23 11:30:37,790 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:30:37" (3/3) ... [2019-05-23 11:30:37,791 INFO L146 ILogger]: Analyzing ICFG add-2-n-u_true-unreach-call.i [2019-05-23 11:30:37,801 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:30:37,808 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:30:37,824 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:30:37,853 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:30:37,854 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:30:37,854 INFO L146 ILogger]: Hoare is true [2019-05-23 11:30:37,854 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:30:37,854 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:30:37,854 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:30:37,855 INFO L146 ILogger]: Difference is false [2019-05-23 11:30:37,855 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:30:37,855 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:30:37,870 INFO L146 ILogger]: Start isEmpty. Operand 63 states. [2019-05-23 11:30:37,878 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 31 [2019-05-23 11:30:37,878 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:37,879 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:30:37,881 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:37,886 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:37,887 INFO L146 ILogger]: Analyzing trace with hash 446878208, now seen corresponding path program 1 times [2019-05-23 11:30:37,888 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:37,888 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:37,932 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:37,932 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:37,932 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:37,965 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:37,965 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:37,965 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 11:30:37,976 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:38,022 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:38,025 INFO L146 ILogger]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:30:38,033 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:38,160 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 11:30:38,190 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:30:38,190 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:30:38,194 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:30:38,208 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:30:38,209 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:30:38,211 INFO L146 ILogger]: Start difference. First operand 63 states. Second operand 4 states. [2019-05-23 11:30:38,525 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:38,526 INFO L146 ILogger]: Finished difference Result 149 states and 186 transitions. [2019-05-23 11:30:38,527 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:30:38,528 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 30 [2019-05-23 11:30:38,529 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:38,542 INFO L146 ILogger]: With dead ends: 149 [2019-05-23 11:30:38,542 INFO L146 ILogger]: Without dead ends: 89 [2019-05-23 11:30:38,546 INFO L146 ILogger]: 0 DeclaredPredicates, 29 GetRequests, 27 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 11:30:38,562 INFO L146 ILogger]: Start minimizeSevpa. Operand 89 states. [2019-05-23 11:30:38,582 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 89 to 55. [2019-05-23 11:30:38,583 INFO L146 ILogger]: Start removeUnreachable. Operand 55 states. [2019-05-23 11:30:38,585 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2019-05-23 11:30:38,586 INFO L146 ILogger]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 30 [2019-05-23 11:30:38,587 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:38,588 INFO L146 ILogger]: Abstraction has 55 states and 60 transitions. [2019-05-23 11:30:38,588 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:30:38,588 INFO L146 ILogger]: Start isEmpty. Operand 55 states and 60 transitions. [2019-05-23 11:30:38,590 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 39 [2019-05-23 11:30:38,590 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:38,590 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 11:30:38,591 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:38,593 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:38,593 INFO L146 ILogger]: Analyzing trace with hash -1582996863, now seen corresponding path program 1 times [2019-05-23 11:30:38,593 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:38,593 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:38,594 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:38,594 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:38,595 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:38,602 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:38,603 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:38,603 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 11:30:38,621 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:38,663 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:38,664 INFO L146 ILogger]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:30:38,668 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:38,734 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 11:30:38,755 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:30:38,756 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:30:38,758 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:30:38,758 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:30:38,758 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:30:38,758 INFO L146 ILogger]: Start difference. First operand 55 states and 60 transitions. Second operand 4 states. [2019-05-23 11:30:39,040 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:39,040 INFO L146 ILogger]: Finished difference Result 127 states and 140 transitions. [2019-05-23 11:30:39,041 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:30:39,041 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 38 [2019-05-23 11:30:39,041 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:39,043 INFO L146 ILogger]: With dead ends: 127 [2019-05-23 11:30:39,043 INFO L146 ILogger]: Without dead ends: 86 [2019-05-23 11:30:39,044 INFO L146 ILogger]: 0 DeclaredPredicates, 37 GetRequests, 35 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 11:30:39,045 INFO L146 ILogger]: Start minimizeSevpa. Operand 86 states. [2019-05-23 11:30:39,053 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 86 to 58. [2019-05-23 11:30:39,053 INFO L146 ILogger]: Start removeUnreachable. Operand 58 states. [2019-05-23 11:30:39,054 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2019-05-23 11:30:39,055 INFO L146 ILogger]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 38 [2019-05-23 11:30:39,055 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:39,055 INFO L146 ILogger]: Abstraction has 58 states and 63 transitions. [2019-05-23 11:30:39,055 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:30:39,056 INFO L146 ILogger]: Start isEmpty. Operand 58 states and 63 transitions. [2019-05-23 11:30:39,057 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 52 [2019-05-23 11:30:39,057 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:39,057 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] [2019-05-23 11:30:39,058 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:39,058 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:39,058 INFO L146 ILogger]: Analyzing trace with hash 687033536, now seen corresponding path program 1 times [2019-05-23 11:30:39,058 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:39,059 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:39,060 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:39,060 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:39,060 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:39,066 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:39,066 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:39,066 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 11:30:39,085 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:39,114 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:39,116 INFO L146 ILogger]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:30:39,119 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:39,181 INFO L146 ILogger]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-05-23 11:30:39,201 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:30:39,202 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:30:39,202 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:30:39,202 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:30:39,203 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:30:39,203 INFO L146 ILogger]: Start difference. First operand 58 states and 63 transitions. Second operand 5 states. [2019-05-23 11:30:39,720 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:39,720 INFO L146 ILogger]: Finished difference Result 157 states and 170 transitions. [2019-05-23 11:30:39,723 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:30:39,723 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 51 [2019-05-23 11:30:39,724 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:39,725 INFO L146 ILogger]: With dead ends: 157 [2019-05-23 11:30:39,725 INFO L146 ILogger]: Without dead ends: 113 [2019-05-23 11:30:39,726 INFO L146 ILogger]: 0 DeclaredPredicates, 50 GetRequests, 47 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 11:30:39,726 INFO L146 ILogger]: Start minimizeSevpa. Operand 113 states. [2019-05-23 11:30:39,736 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 113 to 83. [2019-05-23 11:30:39,737 INFO L146 ILogger]: Start removeUnreachable. Operand 83 states. [2019-05-23 11:30:39,738 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2019-05-23 11:30:39,738 INFO L146 ILogger]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 51 [2019-05-23 11:30:39,738 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:39,738 INFO L146 ILogger]: Abstraction has 83 states and 89 transitions. [2019-05-23 11:30:39,739 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:30:39,739 INFO L146 ILogger]: Start isEmpty. Operand 83 states and 89 transitions. [2019-05-23 11:30:39,740 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 65 [2019-05-23 11:30:39,740 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:39,741 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:30:39,741 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:39,741 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:39,742 INFO L146 ILogger]: Analyzing trace with hash -523388037, now seen corresponding path program 2 times [2019-05-23 11:30:39,742 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:39,742 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:39,743 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:39,743 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:30:39,743 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:39,749 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:39,749 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:39,749 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 11:30:39,759 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:30:39,800 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:30:39,800 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:39,801 INFO L146 ILogger]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:30:39,806 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:39,943 INFO L146 ILogger]: Checked inductivity of 19 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-05-23 11:30:39,970 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:30:39,971 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-05-23 11:30:39,971 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:30:39,971 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:30:39,971 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:30:39,972 INFO L146 ILogger]: Start difference. First operand 83 states and 89 transitions. Second operand 6 states. [2019-05-23 11:30:40,365 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:40,365 INFO L146 ILogger]: Finished difference Result 209 states and 223 transitions. [2019-05-23 11:30:40,366 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:30:40,366 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 64 [2019-05-23 11:30:40,366 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:40,368 INFO L146 ILogger]: With dead ends: 209 [2019-05-23 11:30:40,368 INFO L146 ILogger]: Without dead ends: 140 [2019-05-23 11:30:40,369 INFO L146 ILogger]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:30:40,369 INFO L146 ILogger]: Start minimizeSevpa. Operand 140 states. [2019-05-23 11:30:40,379 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 140 to 108. [2019-05-23 11:30:40,380 INFO L146 ILogger]: Start removeUnreachable. Operand 108 states. [2019-05-23 11:30:40,381 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 108 states to 108 states and 115 transitions. [2019-05-23 11:30:40,381 INFO L146 ILogger]: Start accepts. Automaton has 108 states and 115 transitions. Word has length 64 [2019-05-23 11:30:40,381 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:40,381 INFO L146 ILogger]: Abstraction has 108 states and 115 transitions. [2019-05-23 11:30:40,382 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:30:40,382 INFO L146 ILogger]: Start isEmpty. Operand 108 states and 115 transitions. [2019-05-23 11:30:40,383 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 78 [2019-05-23 11:30:40,383 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:40,383 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:30:40,384 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:40,384 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:40,384 INFO L146 ILogger]: Analyzing trace with hash -39282490, now seen corresponding path program 3 times [2019-05-23 11:30:40,384 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:40,384 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:40,385 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:40,385 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:40,386 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:40,391 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:40,391 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:40,391 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 11:30:40,411 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:30:40,449 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-05-23 11:30:40,450 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:40,451 INFO L146 ILogger]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:30:40,462 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:40,575 INFO L146 ILogger]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-05-23 11:30:40,603 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:30:40,603 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:30:40,603 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:30:40,604 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:30:40,604 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:30:40,604 INFO L146 ILogger]: Start difference. First operand 108 states and 115 transitions. Second operand 5 states. [2019-05-23 11:30:40,802 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:40,802 INFO L146 ILogger]: Finished difference Result 356 states and 380 transitions. [2019-05-23 11:30:40,803 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:30:40,803 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 77 [2019-05-23 11:30:40,803 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:40,805 INFO L146 ILogger]: With dead ends: 356 [2019-05-23 11:30:40,805 INFO L146 ILogger]: Without dead ends: 284 [2019-05-23 11:30:40,806 INFO L146 ILogger]: 0 DeclaredPredicates, 76 GetRequests, 73 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 11:30:40,807 INFO L146 ILogger]: Start minimizeSevpa. Operand 284 states. [2019-05-23 11:30:40,820 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 284 to 155. [2019-05-23 11:30:40,820 INFO L146 ILogger]: Start removeUnreachable. Operand 155 states. [2019-05-23 11:30:40,821 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 155 states to 155 states and 164 transitions. [2019-05-23 11:30:40,821 INFO L146 ILogger]: Start accepts. Automaton has 155 states and 164 transitions. Word has length 77 [2019-05-23 11:30:40,822 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:40,822 INFO L146 ILogger]: Abstraction has 155 states and 164 transitions. [2019-05-23 11:30:40,822 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:30:40,822 INFO L146 ILogger]: Start isEmpty. Operand 155 states and 164 transitions. [2019-05-23 11:30:40,824 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 125 [2019-05-23 11:30:40,824 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:40,824 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:30:40,825 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:40,825 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:40,825 INFO L146 ILogger]: Analyzing trace with hash 1705716598, now seen corresponding path program 4 times [2019-05-23 11:30:40,825 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:40,826 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:40,826 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:40,827 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:40,827 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:40,832 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:40,832 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:40,833 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 11:30:40,851 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:30:41,157 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:30:41,157 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:30:41,160 INFO L146 ILogger]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:30:41,170 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:30:41,615 INFO L146 ILogger]: Checked inductivity of 231 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-05-23 11:30:41,635 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:30:41,636 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:30:41,636 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:30:41,636 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:30:41,637 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:30:41,637 INFO L146 ILogger]: Start difference. First operand 155 states and 164 transitions. Second operand 7 states. [2019-05-23 11:30:41,947 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:30:41,948 INFO L146 ILogger]: Finished difference Result 357 states and 377 transitions. [2019-05-23 11:30:41,948 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:30:41,949 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 124 [2019-05-23 11:30:41,949 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:30:41,951 INFO L146 ILogger]: With dead ends: 357 [2019-05-23 11:30:41,951 INFO L146 ILogger]: Without dead ends: 236 [2019-05-23 11:30:41,952 INFO L146 ILogger]: 0 DeclaredPredicates, 123 GetRequests, 118 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 11:30:41,953 INFO L146 ILogger]: Start minimizeSevpa. Operand 236 states. [2019-05-23 11:30:41,965 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 236 to 193. [2019-05-23 11:30:41,965 INFO L146 ILogger]: Start removeUnreachable. Operand 193 states. [2019-05-23 11:30:41,966 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 193 states to 193 states and 203 transitions. [2019-05-23 11:30:41,967 INFO L146 ILogger]: Start accepts. Automaton has 193 states and 203 transitions. Word has length 124 [2019-05-23 11:30:41,967 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:30:41,967 INFO L146 ILogger]: Abstraction has 193 states and 203 transitions. [2019-05-23 11:30:41,967 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:30:41,967 INFO L146 ILogger]: Start isEmpty. Operand 193 states and 203 transitions. [2019-05-23 11:30:41,970 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 151 [2019-05-23 11:30:41,970 INFO L146 ILogger]: Found error trace [2019-05-23 11:30:41,970 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:30:41,970 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:30:41,971 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:30:41,971 INFO L146 ILogger]: Analyzing trace with hash -901950742, now seen corresponding path program 5 times [2019-05-23 11:30:41,971 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:30:41,971 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:30:41,972 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:41,972 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:30:41,972 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:30:41,978 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:30:41,978 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:30:41,978 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 11:30:41,998 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1