java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/array-multidimensional/init-non-constant-3-u_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:31:21,470 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:31:21,471 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:31:21,483 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:31:21,483 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:31:21,484 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:31:21,485 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:31:21,488 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:31:21,490 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:31:21,494 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:31:21,495 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:31:21,496 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:31:21,497 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:31:21,500 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:31:21,501 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:31:21,502 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:31:21,506 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:31:21,508 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:31:21,513 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:31:21,516 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:31:21,518 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:31:21,520 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:31:21,525 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:31:21,525 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:31:21,525 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:31:21,526 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:31:21,527 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:31:21,527 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:31:21,528 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:31:21,529 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:31:21,530 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:31:21,530 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:31:21,533 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:31:21,534 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:31:21,534 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:31:21,535 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:31:21,535 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:31:21,536 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:31:21,538 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:31:21,538 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:31:21,559 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:31:21,560 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:31:21,561 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:31:21,562 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:31:21,562 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:31:21,562 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:31:21,562 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:31:21,562 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:31:21,563 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:31:21,563 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:31:21,563 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:31:21,563 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:31:21,564 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:31:21,564 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:31:21,564 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:31:21,564 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:31:21,564 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:31:21,565 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:31:21,565 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:31:21,565 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:31:21,565 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:31:21,565 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:31:21,566 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:31:21,566 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:31:21,566 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:31:21,566 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:31:21,566 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:31:21,567 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:31:21,568 INFO L146 ILogger]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2019-05-23 11:31:21,602 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:31:21,614 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:31:21,618 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:31:21,619 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:31:21,620 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:31:21,621 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-multidimensional/init-non-constant-3-u_true-unreach-call.i [2019-05-23 11:31:21,674 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fdb1c0d6/7e726b7a5a1a4638b982e3f8a18e7a7b/FLAGc26150bbb [2019-05-23 11:31:22,102 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:31:22,102 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-multidimensional/init-non-constant-3-u_true-unreach-call.i [2019-05-23 11:31:22,109 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fdb1c0d6/7e726b7a5a1a4638b982e3f8a18e7a7b/FLAGc26150bbb [2019-05-23 11:31:22,462 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fdb1c0d6/7e726b7a5a1a4638b982e3f8a18e7a7b [2019-05-23 11:31:22,472 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:31:22,474 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:31:22,475 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:31:22,475 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:31:22,478 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:31:22,479 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:31:22" (1/1) ... [2019-05-23 11:31:22,482 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d3dccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22, skipping insertion in model container [2019-05-23 11:31:22,482 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:31:22" (1/1) ... [2019-05-23 11:31:22,489 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:31:22,511 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:31:22,676 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:31:22,679 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:31:22,704 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:31:22,730 INFO L146 ILogger]: Completed translation [2019-05-23 11:31:22,730 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22 WrapperNode [2019-05-23 11:31:22,730 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:31:22,731 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:31:22,731 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:31:22,732 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:31:22,741 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22" (1/1) ... [2019-05-23 11:31:22,753 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22" (1/1) ... [2019-05-23 11:31:22,776 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:31:22,777 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:31:22,777 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:31:22,777 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:31:22,785 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22" (1/1) ... [2019-05-23 11:31:22,785 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22" (1/1) ... [2019-05-23 11:31:22,786 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22" (1/1) ... [2019-05-23 11:31:22,787 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22" (1/1) ... [2019-05-23 11:31:22,880 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22" (1/1) ... [2019-05-23 11:31:22,892 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22" (1/1) ... [2019-05-23 11:31:22,893 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22" (1/1) ... [2019-05-23 11:31:22,896 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:31:22,896 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:31:22,896 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:31:22,896 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:31:22,897 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 [2019-05-23 11:31:22,943 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:31:22,943 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:31:22,943 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:31:22,943 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:31:22,944 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:31:22,944 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:31:23,383 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:31:23,384 INFO L146 ILogger]: Removed 12 assume(true) statements. [2019-05-23 11:31:23,385 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:31:23 BoogieIcfgContainer [2019-05-23 11:31:23,385 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:31:23,386 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:31:23,386 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:31:23,389 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:31:23,389 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:31:22" (1/3) ... [2019-05-23 11:31:23,390 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3732c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:31:23, skipping insertion in model container [2019-05-23 11:31:23,390 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:31:22" (2/3) ... [2019-05-23 11:31:23,390 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3732c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:31:23, skipping insertion in model container [2019-05-23 11:31:23,390 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:31:23" (3/3) ... [2019-05-23 11:31:23,392 INFO L146 ILogger]: Analyzing ICFG init-non-constant-3-u_true-unreach-call.i [2019-05-23 11:31:23,401 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:31:23,410 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:31:23,426 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:31:23,454 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:31:23,455 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:31:23,455 INFO L146 ILogger]: Hoare is true [2019-05-23 11:31:23,455 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:31:23,455 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:31:23,455 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:31:23,455 INFO L146 ILogger]: Difference is false [2019-05-23 11:31:23,456 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:31:23,456 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:31:23,469 INFO L146 ILogger]: Start isEmpty. Operand 50 states. [2019-05-23 11:31:23,476 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 31 [2019-05-23 11:31:23,476 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:23,476 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 11:31:23,478 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:23,483 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:23,484 INFO L146 ILogger]: Analyzing trace with hash 1268362245, now seen corresponding path program 1 times [2019-05-23 11:31:23,485 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:23,486 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:23,528 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:23,528 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:23,529 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:23,556 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:23,556 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:23,556 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:23,566 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:23,591 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:23,593 INFO L146 ILogger]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:31:23,599 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:23,667 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:23,695 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:23,696 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:23,699 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:23,709 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:23,709 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:23,712 INFO L146 ILogger]: Start difference. First operand 50 states. Second operand 4 states. [2019-05-23 11:31:24,090 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:24,090 INFO L146 ILogger]: Finished difference Result 113 states and 150 transitions. [2019-05-23 11:31:24,092 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:24,093 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 30 [2019-05-23 11:31:24,094 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:24,104 INFO L146 ILogger]: With dead ends: 113 [2019-05-23 11:31:24,105 INFO L146 ILogger]: Without dead ends: 71 [2019-05-23 11:31:24,107 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 11:31:24,121 INFO L146 ILogger]: Start minimizeSevpa. Operand 71 states. [2019-05-23 11:31:24,139 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 71 to 45. [2019-05-23 11:31:24,140 INFO L146 ILogger]: Start removeUnreachable. Operand 45 states. [2019-05-23 11:31:24,142 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2019-05-23 11:31:24,143 INFO L146 ILogger]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 30 [2019-05-23 11:31:24,144 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:24,144 INFO L146 ILogger]: Abstraction has 45 states and 50 transitions. [2019-05-23 11:31:24,144 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:24,144 INFO L146 ILogger]: Start isEmpty. Operand 45 states and 50 transitions. [2019-05-23 11:31:24,146 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 36 [2019-05-23 11:31:24,146 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:24,146 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:24,147 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:24,147 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:24,147 INFO L146 ILogger]: Analyzing trace with hash 1632120419, now seen corresponding path program 1 times [2019-05-23 11:31:24,147 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:24,148 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:24,149 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:24,149 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:24,149 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:24,154 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:24,155 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:24,155 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:24,171 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:24,192 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:24,193 INFO L146 ILogger]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:31:24,195 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:24,378 INFO L146 ILogger]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:24,407 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:24,407 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:24,410 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:24,411 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:24,412 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:24,412 INFO L146 ILogger]: Start difference. First operand 45 states and 50 transitions. Second operand 4 states. [2019-05-23 11:31:24,618 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:24,619 INFO L146 ILogger]: Finished difference Result 97 states and 111 transitions. [2019-05-23 11:31:24,623 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:24,623 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 35 [2019-05-23 11:31:24,623 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:24,624 INFO L146 ILogger]: With dead ends: 97 [2019-05-23 11:31:24,624 INFO L146 ILogger]: Without dead ends: 67 [2019-05-23 11:31:24,626 INFO L146 ILogger]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:24,626 INFO L146 ILogger]: Start minimizeSevpa. Operand 67 states. [2019-05-23 11:31:24,632 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 67 to 47. [2019-05-23 11:31:24,633 INFO L146 ILogger]: Start removeUnreachable. Operand 47 states. [2019-05-23 11:31:24,634 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2019-05-23 11:31:24,634 INFO L146 ILogger]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 35 [2019-05-23 11:31:24,634 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:24,634 INFO L146 ILogger]: Abstraction has 47 states and 52 transitions. [2019-05-23 11:31:24,635 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:24,635 INFO L146 ILogger]: Start isEmpty. Operand 47 states and 52 transitions. [2019-05-23 11:31:24,636 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 40 [2019-05-23 11:31:24,636 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:24,636 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] [2019-05-23 11:31:24,637 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:24,637 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:24,637 INFO L146 ILogger]: Analyzing trace with hash -1640520852, now seen corresponding path program 1 times [2019-05-23 11:31:24,637 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:24,637 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:24,638 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:24,638 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:24,639 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:24,643 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:24,643 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:24,644 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:24,660 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:24,679 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:24,680 INFO L146 ILogger]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:31:24,682 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:24,719 INFO L146 ILogger]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:24,740 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:31:24,740 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:31:24,741 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:31:24,741 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:31:24,742 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:24,742 INFO L146 ILogger]: Start difference. First operand 47 states and 52 transitions. Second operand 4 states. [2019-05-23 11:31:24,880 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:24,880 INFO L146 ILogger]: Finished difference Result 99 states and 111 transitions. [2019-05-23 11:31:24,881 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:31:24,881 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 39 [2019-05-23 11:31:24,881 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:24,882 INFO L146 ILogger]: With dead ends: 99 [2019-05-23 11:31:24,882 INFO L146 ILogger]: Without dead ends: 67 [2019-05-23 11:31:24,883 INFO L146 ILogger]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:31:24,884 INFO L146 ILogger]: Start minimizeSevpa. Operand 67 states. [2019-05-23 11:31:24,891 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 67 to 49. [2019-05-23 11:31:24,891 INFO L146 ILogger]: Start removeUnreachable. Operand 49 states. [2019-05-23 11:31:24,892 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2019-05-23 11:31:24,892 INFO L146 ILogger]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 39 [2019-05-23 11:31:24,893 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:24,893 INFO L146 ILogger]: Abstraction has 49 states and 54 transitions. [2019-05-23 11:31:24,893 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:31:24,893 INFO L146 ILogger]: Start isEmpty. Operand 49 states and 54 transitions. [2019-05-23 11:31:24,894 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 43 [2019-05-23 11:31:24,894 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:24,895 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:24,895 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:24,895 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:24,895 INFO L146 ILogger]: Analyzing trace with hash -201582089, now seen corresponding path program 1 times [2019-05-23 11:31:24,896 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:24,896 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:24,897 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:24,897 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:24,897 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:24,901 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:24,902 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:24,902 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:24,912 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:24,942 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:24,947 INFO L146 ILogger]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:31:24,949 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:25,067 INFO L146 ILogger]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:25,094 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:25,094 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:31:25,095 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:31:25,095 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:31:25,095 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:25,096 INFO L146 ILogger]: Start difference. First operand 49 states and 54 transitions. Second operand 5 states. [2019-05-23 11:31:25,571 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:25,571 INFO L146 ILogger]: Finished difference Result 114 states and 126 transitions. [2019-05-23 11:31:25,571 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:31:25,571 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 42 [2019-05-23 11:31:25,572 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:25,573 INFO L146 ILogger]: With dead ends: 114 [2019-05-23 11:31:25,573 INFO L146 ILogger]: Without dead ends: 80 [2019-05-23 11:31:25,574 INFO L146 ILogger]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:25,574 INFO L146 ILogger]: Start minimizeSevpa. Operand 80 states. [2019-05-23 11:31:25,581 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 80 to 60. [2019-05-23 11:31:25,581 INFO L146 ILogger]: Start removeUnreachable. Operand 60 states. [2019-05-23 11:31:25,583 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2019-05-23 11:31:25,583 INFO L146 ILogger]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 42 [2019-05-23 11:31:25,583 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:25,584 INFO L146 ILogger]: Abstraction has 60 states and 66 transitions. [2019-05-23 11:31:25,584 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:31:25,584 INFO L146 ILogger]: Start isEmpty. Operand 60 states and 66 transitions. [2019-05-23 11:31:25,585 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 46 [2019-05-23 11:31:25,585 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:25,585 INFO L146 ILogger]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:25,585 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:25,585 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:25,585 INFO L146 ILogger]: Analyzing trace with hash -845474932, now seen corresponding path program 2 times [2019-05-23 11:31:25,586 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:25,586 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:25,587 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:25,587 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:31:25,587 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:25,591 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:25,591 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:25,591 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:25,601 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:31:25,621 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:31:25,621 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:25,622 INFO L146 ILogger]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:31:25,624 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:25,766 INFO L146 ILogger]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:31:25,786 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:25,786 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-05-23 11:31:25,787 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:31:25,787 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:31:25,787 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:31:25,787 INFO L146 ILogger]: Start difference. First operand 60 states and 66 transitions. Second operand 6 states. [2019-05-23 11:31:25,969 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:25,969 INFO L146 ILogger]: Finished difference Result 138 states and 151 transitions. [2019-05-23 11:31:25,969 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:31:25,970 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 45 [2019-05-23 11:31:25,970 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:25,971 INFO L146 ILogger]: With dead ends: 138 [2019-05-23 11:31:25,971 INFO L146 ILogger]: Without dead ends: 93 [2019-05-23 11:31:25,972 INFO L146 ILogger]: 0 DeclaredPredicates, 44 GetRequests, 40 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 11:31:25,973 INFO L146 ILogger]: Start minimizeSevpa. Operand 93 states. [2019-05-23 11:31:25,979 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 93 to 71. [2019-05-23 11:31:25,980 INFO L146 ILogger]: Start removeUnreachable. Operand 71 states. [2019-05-23 11:31:25,980 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2019-05-23 11:31:25,981 INFO L146 ILogger]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 45 [2019-05-23 11:31:25,981 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:25,981 INFO L146 ILogger]: Abstraction has 71 states and 78 transitions. [2019-05-23 11:31:25,981 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:31:25,981 INFO L146 ILogger]: Start isEmpty. Operand 71 states and 78 transitions. [2019-05-23 11:31:25,982 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 49 [2019-05-23 11:31:25,982 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:25,982 INFO L146 ILogger]: trace histogram [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, 1] [2019-05-23 11:31:25,983 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:25,983 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:25,983 INFO L146 ILogger]: Analyzing trace with hash -1733216809, now seen corresponding path program 3 times [2019-05-23 11:31:25,983 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:25,984 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:25,984 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:25,985 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:25,985 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:25,988 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:25,989 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:25,989 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:26,000 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:31:26,014 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-05-23 11:31:26,015 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:26,016 INFO L146 ILogger]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:31:26,018 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:26,100 INFO L146 ILogger]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-05-23 11:31:26,128 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:26,128 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 11:31:26,128 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 11:31:26,129 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 11:31:26,129 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:26,130 INFO L146 ILogger]: Start difference. First operand 71 states and 78 transitions. Second operand 5 states. [2019-05-23 11:31:26,543 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:26,543 INFO L146 ILogger]: Finished difference Result 214 states and 238 transitions. [2019-05-23 11:31:26,544 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:31:26,544 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 48 [2019-05-23 11:31:26,546 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:26,548 INFO L146 ILogger]: With dead ends: 214 [2019-05-23 11:31:26,548 INFO L146 ILogger]: Without dead ends: 176 [2019-05-23 11:31:26,549 INFO L146 ILogger]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 11:31:26,549 INFO L146 ILogger]: Start minimizeSevpa. Operand 176 states. [2019-05-23 11:31:26,573 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 176 to 89. [2019-05-23 11:31:26,574 INFO L146 ILogger]: Start removeUnreachable. Operand 89 states. [2019-05-23 11:31:26,575 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2019-05-23 11:31:26,575 INFO L146 ILogger]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 48 [2019-05-23 11:31:26,575 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:26,576 INFO L146 ILogger]: Abstraction has 89 states and 98 transitions. [2019-05-23 11:31:26,576 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 11:31:26,576 INFO L146 ILogger]: Start isEmpty. Operand 89 states and 98 transitions. [2019-05-23 11:31:26,579 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 67 [2019-05-23 11:31:26,579 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:26,579 INFO L146 ILogger]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:31:26,582 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:26,582 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:26,583 INFO L146 ILogger]: Analyzing trace with hash 1377611561, now seen corresponding path program 4 times [2019-05-23 11:31:26,583 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:26,583 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:26,584 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:26,585 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:26,585 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:26,595 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:26,595 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:26,599 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:26,622 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:31:26,652 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:31:26,652 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:31:26,653 INFO L146 ILogger]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:31:26,659 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:31:26,985 INFO L146 ILogger]: Checked inductivity of 72 backedges. 49 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-05-23 11:31:27,013 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:31:27,013 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-05-23 11:31:27,014 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:31:27,014 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:31:27,014 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:31:27,014 INFO L146 ILogger]: Start difference. First operand 89 states and 98 transitions. Second operand 8 states. [2019-05-23 11:31:27,352 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:31:27,352 INFO L146 ILogger]: Finished difference Result 263 states and 290 transitions. [2019-05-23 11:31:27,353 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:31:27,353 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 66 [2019-05-23 11:31:27,354 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:31:27,355 INFO L146 ILogger]: With dead ends: 263 [2019-05-23 11:31:27,356 INFO L146 ILogger]: Without dead ends: 205 [2019-05-23 11:31:27,358 INFO L146 ILogger]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:31:27,358 INFO L146 ILogger]: Start minimizeSevpa. Operand 205 states. [2019-05-23 11:31:27,383 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 205 to 143. [2019-05-23 11:31:27,383 INFO L146 ILogger]: Start removeUnreachable. Operand 143 states. [2019-05-23 11:31:27,385 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 143 states to 143 states and 158 transitions. [2019-05-23 11:31:27,385 INFO L146 ILogger]: Start accepts. Automaton has 143 states and 158 transitions. Word has length 66 [2019-05-23 11:31:27,385 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:31:27,385 INFO L146 ILogger]: Abstraction has 143 states and 158 transitions. [2019-05-23 11:31:27,385 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:31:27,386 INFO L146 ILogger]: Start isEmpty. Operand 143 states and 158 transitions. [2019-05-23 11:31:27,391 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 93 [2019-05-23 11:31:27,391 INFO L146 ILogger]: Found error trace [2019-05-23 11:31:27,391 INFO L146 ILogger]: trace histogram [12, 12, 12, 4, 4, 4, 4, 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 11:31:27,392 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:31:27,392 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:31:27,392 INFO L146 ILogger]: Analyzing trace with hash 717836357, now seen corresponding path program 5 times [2019-05-23 11:31:27,392 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:31:27,392 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:31:27,393 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:27,393 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:31:27,393 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:31:27,399 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:31:27,399 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:31:27,399 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:31:27,418 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1