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/transpose-u_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:32:15,685 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:32:15,687 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:32:15,698 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:32:15,699 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:32:15,700 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:32:15,701 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:32:15,703 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:32:15,704 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:32:15,705 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:32:15,706 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:32:15,706 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:32:15,707 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:32:15,708 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:32:15,709 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:32:15,710 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:32:15,711 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:32:15,713 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:32:15,715 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:32:15,716 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:32:15,718 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:32:15,719 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:32:15,721 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:32:15,722 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:32:15,722 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:32:15,723 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:32:15,723 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:32:15,724 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:32:15,725 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:32:15,726 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:32:15,726 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:32:15,727 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:32:15,728 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:32:15,728 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:32:15,729 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:32:15,729 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:32:15,729 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:32:15,730 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:32:15,731 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:32:15,731 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:32:15,748 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:32:15,748 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:32:15,749 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:32:15,750 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:32:15,751 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:32:15,751 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:32:15,751 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:32:15,751 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:32:15,752 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:32:15,752 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:32:15,752 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:32:15,752 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:32:15,752 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:32:15,752 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:32:15,753 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:32:15,754 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:32:15,754 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:32:15,754 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:32:15,754 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:32:15,755 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:32:15,755 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:32:15,755 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:32:15,755 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:32:15,755 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:32:15,756 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:32:15,756 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:32:15,756 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:32:15,757 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:32:15,757 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 11:32:15,806 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:32:15,818 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:32:15,822 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:32:15,823 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:32:15,824 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:32:15,824 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-multidimensional/transpose-u_true-unreach-call.i [2019-05-23 11:32:15,876 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c4d851f/73ac5b66a6624bc2b4a3b6e1b504d13b/FLAG2298b2e79 [2019-05-23 11:32:16,297 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:32:16,298 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-multidimensional/transpose-u_true-unreach-call.i [2019-05-23 11:32:16,304 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c4d851f/73ac5b66a6624bc2b4a3b6e1b504d13b/FLAG2298b2e79 [2019-05-23 11:32:16,682 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c4d851f/73ac5b66a6624bc2b4a3b6e1b504d13b [2019-05-23 11:32:16,692 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:32:16,694 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:32:16,695 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:32:16,695 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:32:16,699 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:32:16,700 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:32:16" (1/1) ... [2019-05-23 11:32:16,703 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479109e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16, skipping insertion in model container [2019-05-23 11:32:16,703 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:32:16" (1/1) ... [2019-05-23 11:32:16,711 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:32:16,729 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:32:16,890 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:32:16,894 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:32:16,920 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:32:16,949 INFO L146 ILogger]: Completed translation [2019-05-23 11:32:16,949 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16 WrapperNode [2019-05-23 11:32:16,950 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:32:16,951 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:32:16,951 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:32:16,951 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:32:16,960 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16" (1/1) ... [2019-05-23 11:32:16,968 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16" (1/1) ... [2019-05-23 11:32:16,993 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:32:16,994 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:32:16,994 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:32:16,994 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:32:17,003 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16" (1/1) ... [2019-05-23 11:32:17,003 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16" (1/1) ... [2019-05-23 11:32:17,005 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16" (1/1) ... [2019-05-23 11:32:17,005 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16" (1/1) ... [2019-05-23 11:32:17,094 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16" (1/1) ... [2019-05-23 11:32:17,108 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16" (1/1) ... [2019-05-23 11:32:17,110 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16" (1/1) ... [2019-05-23 11:32:17,112 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:32:17,112 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:32:17,112 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:32:17,112 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:32:17,113 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16" (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 11:32:17,165 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:32:17,165 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:32:17,165 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:32:17,166 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:32:17,166 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:32:17,166 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:32:17,652 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:32:17,652 INFO L146 ILogger]: Removed 12 assume(true) statements. [2019-05-23 11:32:17,653 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:32:17 BoogieIcfgContainer [2019-05-23 11:32:17,654 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:32:17,655 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:32:17,655 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:32:17,658 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:32:17,658 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:32:16" (1/3) ... [2019-05-23 11:32:17,659 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c29910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:32:17, skipping insertion in model container [2019-05-23 11:32:17,659 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:32:16" (2/3) ... [2019-05-23 11:32:17,660 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c29910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:32:17, skipping insertion in model container [2019-05-23 11:32:17,660 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:32:17" (3/3) ... [2019-05-23 11:32:17,661 INFO L146 ILogger]: Analyzing ICFG transpose-u_true-unreach-call.i [2019-05-23 11:32:17,671 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:32:17,678 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:32:17,694 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:32:17,726 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:32:17,726 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:32:17,727 INFO L146 ILogger]: Hoare is true [2019-05-23 11:32:17,727 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:32:17,727 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:32:17,727 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:32:17,727 INFO L146 ILogger]: Difference is false [2019-05-23 11:32:17,727 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:32:17,728 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:32:17,741 INFO L146 ILogger]: Start isEmpty. Operand 62 states. [2019-05-23 11:32:17,748 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 28 [2019-05-23 11:32:17,748 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:17,749 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] [2019-05-23 11:32:17,750 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:17,755 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:17,755 INFO L146 ILogger]: Analyzing trace with hash -1042880214, now seen corresponding path program 1 times [2019-05-23 11:32:17,756 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:17,757 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:17,800 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:17,800 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:17,800 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:17,829 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:17,830 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:17,830 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:32:17,840 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:17,864 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:17,867 INFO L146 ILogger]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:32:17,873 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:17,959 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 11:32:17,982 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:32:17,982 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:32:17,985 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:32:17,995 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:32:17,996 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:32:17,998 INFO L146 ILogger]: Start difference. First operand 62 states. Second operand 4 states. [2019-05-23 11:32:18,413 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:18,414 INFO L146 ILogger]: Finished difference Result 149 states and 186 transitions. [2019-05-23 11:32:18,415 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:32:18,416 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 27 [2019-05-23 11:32:18,417 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:18,426 INFO L146 ILogger]: With dead ends: 149 [2019-05-23 11:32:18,427 INFO L146 ILogger]: Without dead ends: 91 [2019-05-23 11:32:18,430 INFO L146 ILogger]: 0 DeclaredPredicates, 26 GetRequests, 24 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 11:32:18,448 INFO L146 ILogger]: Start minimizeSevpa. Operand 91 states. [2019-05-23 11:32:18,467 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 91 to 56. [2019-05-23 11:32:18,468 INFO L146 ILogger]: Start removeUnreachable. Operand 56 states. [2019-05-23 11:32:18,470 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2019-05-23 11:32:18,471 INFO L146 ILogger]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 27 [2019-05-23 11:32:18,472 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:18,472 INFO L146 ILogger]: Abstraction has 56 states and 61 transitions. [2019-05-23 11:32:18,472 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:32:18,472 INFO L146 ILogger]: Start isEmpty. Operand 56 states and 61 transitions. [2019-05-23 11:32:18,474 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 38 [2019-05-23 11:32:18,474 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:18,474 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] [2019-05-23 11:32:18,475 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:18,475 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:18,475 INFO L146 ILogger]: Analyzing trace with hash 1543105286, now seen corresponding path program 1 times [2019-05-23 11:32:18,476 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:18,476 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:18,477 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:18,478 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:18,478 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:18,484 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:18,484 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:18,484 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 11:32:18,501 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:18,531 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:18,532 INFO L146 ILogger]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:32:18,534 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:18,569 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 11:32:18,587 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:32:18,587 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:32:18,589 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:32:18,589 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:32:18,589 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:32:18,589 INFO L146 ILogger]: Start difference. First operand 56 states and 61 transitions. Second operand 4 states. [2019-05-23 11:32:18,834 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:18,835 INFO L146 ILogger]: Finished difference Result 124 states and 137 transitions. [2019-05-23 11:32:18,835 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:32:18,835 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 37 [2019-05-23 11:32:18,836 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:18,837 INFO L146 ILogger]: With dead ends: 124 [2019-05-23 11:32:18,837 INFO L146 ILogger]: Without dead ends: 81 [2019-05-23 11:32:18,838 INFO L146 ILogger]: 0 DeclaredPredicates, 36 GetRequests, 34 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 11:32:18,839 INFO L146 ILogger]: Start minimizeSevpa. Operand 81 states. [2019-05-23 11:32:18,846 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 81 to 59. [2019-05-23 11:32:18,846 INFO L146 ILogger]: Start removeUnreachable. Operand 59 states. [2019-05-23 11:32:18,848 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2019-05-23 11:32:18,848 INFO L146 ILogger]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 37 [2019-05-23 11:32:18,848 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:18,848 INFO L146 ILogger]: Abstraction has 59 states and 64 transitions. [2019-05-23 11:32:18,848 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:32:18,850 INFO L146 ILogger]: Start isEmpty. Operand 59 states and 64 transitions. [2019-05-23 11:32:18,852 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 50 [2019-05-23 11:32:18,852 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:18,852 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] [2019-05-23 11:32:18,852 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:18,852 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:18,852 INFO L146 ILogger]: Analyzing trace with hash 2114600127, now seen corresponding path program 1 times [2019-05-23 11:32:18,853 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:18,853 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:18,854 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:18,854 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:18,854 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:18,860 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:18,860 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:18,860 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 11:32:18,872 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:18,893 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:18,894 INFO L146 ILogger]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:32:18,898 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:18,990 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 11:32:19,012 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:32:19,012 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-05-23 11:32:19,013 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:32:19,013 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:32:19,014 INFO L146 ILogger]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:32:19,014 INFO L146 ILogger]: Start difference. First operand 59 states and 64 transitions. Second operand 6 states. [2019-05-23 11:32:19,291 WARN L146 ILogger]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2019-05-23 11:32:19,534 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:19,534 INFO L146 ILogger]: Finished difference Result 139 states and 151 transitions. [2019-05-23 11:32:19,534 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:32:19,534 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 49 [2019-05-23 11:32:19,535 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:19,536 INFO L146 ILogger]: With dead ends: 139 [2019-05-23 11:32:19,536 INFO L146 ILogger]: Without dead ends: 93 [2019-05-23 11:32:19,536 INFO L146 ILogger]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:32:19,537 INFO L146 ILogger]: Start minimizeSevpa. Operand 93 states. [2019-05-23 11:32:19,544 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 93 to 71. [2019-05-23 11:32:19,545 INFO L146 ILogger]: Start removeUnreachable. Operand 71 states. [2019-05-23 11:32:19,546 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2019-05-23 11:32:19,546 INFO L146 ILogger]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 49 [2019-05-23 11:32:19,546 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:19,546 INFO L146 ILogger]: Abstraction has 71 states and 76 transitions. [2019-05-23 11:32:19,546 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:32:19,546 INFO L146 ILogger]: Start isEmpty. Operand 71 states and 76 transitions. [2019-05-23 11:32:19,548 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 62 [2019-05-23 11:32:19,548 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:19,548 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:32:19,549 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:19,549 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:19,549 INFO L146 ILogger]: Analyzing trace with hash 431740198, now seen corresponding path program 2 times [2019-05-23 11:32:19,549 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:19,549 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:19,550 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:19,550 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:32:19,550 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:19,555 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:19,556 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:19,556 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 11:32:19,569 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:32:19,594 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:32:19,595 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:19,596 INFO L146 ILogger]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:32:19,598 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:19,750 INFO L146 ILogger]: Checked inductivity of 18 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-05-23 11:32:19,773 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:32:19,773 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-05-23 11:32:19,773 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:32:19,773 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:32:19,774 INFO L146 ILogger]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:32:19,774 INFO L146 ILogger]: Start difference. First operand 71 states and 76 transitions. Second operand 8 states. [2019-05-23 11:32:20,088 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:20,088 INFO L146 ILogger]: Finished difference Result 163 states and 175 transitions. [2019-05-23 11:32:20,089 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-05-23 11:32:20,089 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 61 [2019-05-23 11:32:20,090 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:20,091 INFO L146 ILogger]: With dead ends: 163 [2019-05-23 11:32:20,091 INFO L146 ILogger]: Without dead ends: 105 [2019-05-23 11:32:20,092 INFO L146 ILogger]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:32:20,092 INFO L146 ILogger]: Start minimizeSevpa. Operand 105 states. [2019-05-23 11:32:20,100 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 105 to 83. [2019-05-23 11:32:20,100 INFO L146 ILogger]: Start removeUnreachable. Operand 83 states. [2019-05-23 11:32:20,101 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2019-05-23 11:32:20,101 INFO L146 ILogger]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 61 [2019-05-23 11:32:20,102 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:20,102 INFO L146 ILogger]: Abstraction has 83 states and 88 transitions. [2019-05-23 11:32:20,102 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:32:20,102 INFO L146 ILogger]: Start isEmpty. Operand 83 states and 88 transitions. [2019-05-23 11:32:20,104 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 74 [2019-05-23 11:32:20,104 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:20,105 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:32:20,105 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:20,105 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:20,106 INFO L146 ILogger]: Analyzing trace with hash 468280223, now seen corresponding path program 3 times [2019-05-23 11:32:20,106 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:20,106 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:20,107 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:20,107 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:32:20,107 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:20,112 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:20,112 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:20,112 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 11:32:20,134 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:32:20,161 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-05-23 11:32:20,162 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:20,163 INFO L146 ILogger]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:32:20,168 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:20,384 INFO L146 ILogger]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-05-23 11:32:20,409 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:32:20,410 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-05-23 11:32:20,410 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:32:20,410 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:32:20,410 INFO L146 ILogger]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:32:20,411 INFO L146 ILogger]: Start difference. First operand 83 states and 88 transitions. Second operand 6 states. [2019-05-23 11:32:20,631 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:20,631 INFO L146 ILogger]: Finished difference Result 234 states and 249 transitions. [2019-05-23 11:32:20,632 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:32:20,632 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 73 [2019-05-23 11:32:20,632 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:20,634 INFO L146 ILogger]: With dead ends: 234 [2019-05-23 11:32:20,635 INFO L146 ILogger]: Without dead ends: 191 [2019-05-23 11:32:20,636 INFO L146 ILogger]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:32:20,637 INFO L146 ILogger]: Start minimizeSevpa. Operand 191 states. [2019-05-23 11:32:20,648 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 191 to 129. [2019-05-23 11:32:20,648 INFO L146 ILogger]: Start removeUnreachable. Operand 129 states. [2019-05-23 11:32:20,649 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 129 states to 129 states and 136 transitions. [2019-05-23 11:32:20,650 INFO L146 ILogger]: Start accepts. Automaton has 129 states and 136 transitions. Word has length 73 [2019-05-23 11:32:20,650 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:20,650 INFO L146 ILogger]: Abstraction has 129 states and 136 transitions. [2019-05-23 11:32:20,650 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:32:20,651 INFO L146 ILogger]: Start isEmpty. Operand 129 states and 136 transitions. [2019-05-23 11:32:20,652 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 120 [2019-05-23 11:32:20,653 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:20,653 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2019-05-23 11:32:20,653 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:20,654 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:20,654 INFO L146 ILogger]: Analyzing trace with hash 750566154, now seen corresponding path program 4 times [2019-05-23 11:32:20,654 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:20,654 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:20,655 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:20,655 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:32:20,655 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:20,662 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:20,662 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:20,662 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:32:20,678 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:32:20,732 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:32:20,732 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:32:20,733 INFO L146 ILogger]: Trace formula consists of 174 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:32:20,743 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:32:20,922 INFO L146 ILogger]: Checked inductivity of 218 backedges. 9 proven. 92 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-05-23 11:32:20,940 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:32:20,940 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 11:32:20,941 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:32:20,941 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:32:20,941 INFO L146 ILogger]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:32:20,942 INFO L146 ILogger]: Start difference. First operand 129 states and 136 transitions. Second operand 13 states. [2019-05-23 11:32:21,485 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:32:21,485 INFO L146 ILogger]: Finished difference Result 311 states and 329 transitions. [2019-05-23 11:32:21,486 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:32:21,486 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 119 [2019-05-23 11:32:21,487 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:32:21,489 INFO L146 ILogger]: With dead ends: 311 [2019-05-23 11:32:21,489 INFO L146 ILogger]: Without dead ends: 249 [2019-05-23 11:32:21,490 INFO L146 ILogger]: 0 DeclaredPredicates, 128 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:32:21,490 INFO L146 ILogger]: Start minimizeSevpa. Operand 249 states. [2019-05-23 11:32:21,510 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 249 to 175. [2019-05-23 11:32:21,510 INFO L146 ILogger]: Start removeUnreachable. Operand 175 states. [2019-05-23 11:32:21,511 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 175 states to 175 states and 184 transitions. [2019-05-23 11:32:21,512 INFO L146 ILogger]: Start accepts. Automaton has 175 states and 184 transitions. Word has length 119 [2019-05-23 11:32:21,512 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:32:21,512 INFO L146 ILogger]: Abstraction has 175 states and 184 transitions. [2019-05-23 11:32:21,512 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:32:21,512 INFO L146 ILogger]: Start isEmpty. Operand 175 states and 184 transitions. [2019-05-23 11:32:21,515 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 166 [2019-05-23 11:32:21,515 INFO L146 ILogger]: Found error trace [2019-05-23 11:32:21,516 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2019-05-23 11:32:21,516 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:32:21,516 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:32:21,517 INFO L146 ILogger]: Analyzing trace with hash 727954879, now seen corresponding path program 5 times [2019-05-23 11:32:21,517 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:32:21,517 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:32:21,519 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:21,519 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:32:21,519 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:32:21,525 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:32:21,525 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:32:21,525 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 11:32:21,539 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1