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-industry-pattern/array_of_struct_break_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:21:37,485 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:21:37,487 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:21:37,499 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:21:37,500 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:21:37,501 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:21:37,504 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:21:37,506 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:21:37,508 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:21:37,509 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:21:37,510 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:21:37,511 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:21:37,512 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:21:37,513 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:21:37,514 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:21:37,515 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:21:37,515 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:21:37,517 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:21:37,519 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:21:37,521 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:21:37,522 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:21:37,523 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:21:37,526 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:21:37,526 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:21:37,527 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:21:37,528 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:21:37,528 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:21:37,529 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:21:37,529 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:21:37,530 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:21:37,531 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:21:37,532 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:21:37,533 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:21:37,533 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:21:37,534 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:21:37,534 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:21:37,534 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:21:37,535 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:21:37,536 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:21:37,536 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:21:37,551 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:21:37,551 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:21:37,553 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:21:37,553 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:21:37,553 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:21:37,554 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:21:37,554 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:21:37,554 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:21:37,554 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:21:37,555 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:21:37,555 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:21:37,555 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:21:37,555 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:21:37,555 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:21:37,555 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:21:37,556 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:21:37,556 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:21:37,557 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:21:37,557 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:21:37,557 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:21:37,557 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:21:37,557 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:21:37,558 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:21:37,558 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:21:37,558 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:21:37,558 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:21:37,558 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:21:37,559 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:21:37,560 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 11:21:37,600 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:21:37,613 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:21:37,618 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:21:37,619 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:21:37,619 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:21:37,620 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-industry-pattern/array_of_struct_break_true-unreach-call.i [2019-05-23 11:21:37,677 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d71dc11/a61b8adb86764797ba4be3dcee2ceadb/FLAG1f87329a5 [2019-05-23 11:21:38,087 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:21:38,088 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-industry-pattern/array_of_struct_break_true-unreach-call.i [2019-05-23 11:21:38,095 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d71dc11/a61b8adb86764797ba4be3dcee2ceadb/FLAG1f87329a5 [2019-05-23 11:21:38,498 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d71dc11/a61b8adb86764797ba4be3dcee2ceadb [2019-05-23 11:21:38,511 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:21:38,512 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:21:38,513 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:21:38,514 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:21:38,517 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:21:38,518 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:21:38" (1/1) ... [2019-05-23 11:21:38,521 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2e3d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:38, skipping insertion in model container [2019-05-23 11:21:38,521 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:21:38" (1/1) ... [2019-05-23 11:21:38,529 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:21:38,549 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:21:38,773 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:21:40,642 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:21:40,667 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:21:40,698 INFO L146 ILogger]: Completed translation [2019-05-23 11:21:40,698 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:40 WrapperNode [2019-05-23 11:21:40,698 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:21:40,699 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:21:40,699 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:21:40,700 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:21:40,709 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:40" (1/1) ... [2019-05-23 11:21:40,724 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:40" (1/1) ... [2019-05-23 11:21:40,745 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:21:40,745 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:21:40,746 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:21:40,746 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:21:40,759 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:40" (1/1) ... [2019-05-23 11:21:40,759 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:40" (1/1) ... [2019-05-23 11:21:40,760 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:40" (1/1) ... [2019-05-23 11:21:40,761 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:40" (1/1) ... [2019-05-23 11:21:40,772 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:40" (1/1) ... [2019-05-23 11:21:40,778 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:40" (1/1) ... [2019-05-23 11:21:40,780 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:40" (1/1) ... [2019-05-23 11:21:40,782 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:21:40,788 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:21:40,788 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:21:40,789 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:21:40,790 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:40" (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 11:21:40,859 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:21:40,860 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:21:40,860 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:21:40,860 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:21:40,860 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:21:41,560 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:21:41,561 INFO L146 ILogger]: Removed 8 assume(true) statements. [2019-05-23 11:21:41,562 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:21:41 BoogieIcfgContainer [2019-05-23 11:21:41,562 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:21:41,563 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:21:41,563 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:21:41,566 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:21:41,567 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:21:38" (1/3) ... [2019-05-23 11:21:41,568 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500d9895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:21:41, skipping insertion in model container [2019-05-23 11:21:41,568 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:40" (2/3) ... [2019-05-23 11:21:41,571 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500d9895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:21:41, skipping insertion in model container [2019-05-23 11:21:41,571 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:21:41" (3/3) ... [2019-05-23 11:21:41,574 INFO L146 ILogger]: Analyzing ICFG array_of_struct_break_true-unreach-call.i [2019-05-23 11:21:41,585 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:21:41,592 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:21:41,609 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:21:41,638 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:21:41,639 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:21:41,639 INFO L146 ILogger]: Hoare is true [2019-05-23 11:21:41,639 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:21:41,639 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:21:41,639 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:21:41,640 INFO L146 ILogger]: Difference is false [2019-05-23 11:21:41,640 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:21:41,640 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:21:41,658 INFO L146 ILogger]: Start isEmpty. Operand 36 states. [2019-05-23 11:21:41,668 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 23 [2019-05-23 11:21:41,668 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:41,669 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] [2019-05-23 11:21:41,672 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:41,678 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:41,679 INFO L146 ILogger]: Analyzing trace with hash -1210471216, now seen corresponding path program 1 times [2019-05-23 11:21:41,681 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:41,682 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:41,718 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:41,719 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:41,719 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:41,757 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:41,794 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 11:21:41,797 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:21:41,797 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:21:41,800 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:21:41,810 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:21:41,811 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:21:41,813 INFO L146 ILogger]: Start difference. First operand 36 states. Second operand 2 states. [2019-05-23 11:21:41,828 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:41,829 INFO L146 ILogger]: Finished difference Result 54 states and 63 transitions. [2019-05-23 11:21:41,829 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:21:41,830 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 22 [2019-05-23 11:21:41,831 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:41,840 INFO L146 ILogger]: With dead ends: 54 [2019-05-23 11:21:41,841 INFO L146 ILogger]: Without dead ends: 32 [2019-05-23 11:21:41,844 INFO L146 ILogger]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:21:41,858 INFO L146 ILogger]: Start minimizeSevpa. Operand 32 states. [2019-05-23 11:21:41,873 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-05-23 11:21:41,874 INFO L146 ILogger]: Start removeUnreachable. Operand 32 states. [2019-05-23 11:21:41,876 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2019-05-23 11:21:41,877 INFO L146 ILogger]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 22 [2019-05-23 11:21:41,878 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:41,878 INFO L146 ILogger]: Abstraction has 32 states and 35 transitions. [2019-05-23 11:21:41,878 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:21:41,878 INFO L146 ILogger]: Start isEmpty. Operand 32 states and 35 transitions. [2019-05-23 11:21:41,879 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 23 [2019-05-23 11:21:41,879 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:41,879 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:41,880 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:41,880 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:41,880 INFO L146 ILogger]: Analyzing trace with hash 1540717854, now seen corresponding path program 1 times [2019-05-23 11:21:41,880 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:41,881 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:41,882 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:41,882 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:41,882 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:41,896 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:41,976 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 11:21:41,977 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:21:41,977 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:21:41,978 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:21:41,979 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:21:41,979 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:21:41,979 INFO L146 ILogger]: Start difference. First operand 32 states and 35 transitions. Second operand 3 states. [2019-05-23 11:21:42,085 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:42,085 INFO L146 ILogger]: Finished difference Result 64 states and 71 transitions. [2019-05-23 11:21:42,086 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:21:42,086 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 22 [2019-05-23 11:21:42,087 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:42,087 INFO L146 ILogger]: With dead ends: 64 [2019-05-23 11:21:42,088 INFO L146 ILogger]: Without dead ends: 50 [2019-05-23 11:21:42,089 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:21:42,089 INFO L146 ILogger]: Start minimizeSevpa. Operand 50 states. [2019-05-23 11:21:42,099 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 50 to 33. [2019-05-23 11:21:42,100 INFO L146 ILogger]: Start removeUnreachable. Operand 33 states. [2019-05-23 11:21:42,101 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2019-05-23 11:21:42,101 INFO L146 ILogger]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 22 [2019-05-23 11:21:42,101 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:42,101 INFO L146 ILogger]: Abstraction has 33 states and 36 transitions. [2019-05-23 11:21:42,102 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:21:42,102 INFO L146 ILogger]: Start isEmpty. Operand 33 states and 36 transitions. [2019-05-23 11:21:42,103 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 24 [2019-05-23 11:21:42,103 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:42,103 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] [2019-05-23 11:21:42,104 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:42,104 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:42,104 INFO L146 ILogger]: Analyzing trace with hash -1190459873, now seen corresponding path program 1 times [2019-05-23 11:21:42,104 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:42,104 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:42,107 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:42,107 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:42,107 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:42,127 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:42,153 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 11:21:42,153 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:21:42,153 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:21:42,154 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:21:42,154 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:21:42,154 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:21:42,155 INFO L146 ILogger]: Start difference. First operand 33 states and 36 transitions. Second operand 3 states. [2019-05-23 11:21:42,201 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:42,201 INFO L146 ILogger]: Finished difference Result 52 states and 57 transitions. [2019-05-23 11:21:42,202 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:21:42,202 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 23 [2019-05-23 11:21:42,203 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:42,204 INFO L146 ILogger]: With dead ends: 52 [2019-05-23 11:21:42,204 INFO L146 ILogger]: Without dead ends: 33 [2019-05-23 11:21:42,205 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:21:42,205 INFO L146 ILogger]: Start minimizeSevpa. Operand 33 states. [2019-05-23 11:21:42,208 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-05-23 11:21:42,208 INFO L146 ILogger]: Start removeUnreachable. Operand 33 states. [2019-05-23 11:21:42,209 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2019-05-23 11:21:42,209 INFO L146 ILogger]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 23 [2019-05-23 11:21:42,210 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:42,210 INFO L146 ILogger]: Abstraction has 33 states and 34 transitions. [2019-05-23 11:21:42,210 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:21:42,210 INFO L146 ILogger]: Start isEmpty. Operand 33 states and 34 transitions. [2019-05-23 11:21:42,211 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 29 [2019-05-23 11:21:42,211 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:42,211 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] [2019-05-23 11:21:42,212 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:42,212 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:42,212 INFO L146 ILogger]: Analyzing trace with hash 1535770694, now seen corresponding path program 1 times [2019-05-23 11:21:42,212 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:42,212 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:42,214 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:42,214 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:42,214 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:42,228 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:42,313 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:42,314 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:42,314 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:42,338 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:42,382 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:42,384 INFO L146 ILogger]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:21:42,391 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:42,463 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:42,493 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:42,494 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-05-23 11:21:42,494 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:21:42,494 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:21:42,495 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:21:42,495 INFO L146 ILogger]: Start difference. First operand 33 states and 34 transitions. Second operand 7 states. [2019-05-23 11:21:42,843 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:42,843 INFO L146 ILogger]: Finished difference Result 69 states and 71 transitions. [2019-05-23 11:21:42,844 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:21:42,844 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 28 [2019-05-23 11:21:42,844 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:42,845 INFO L146 ILogger]: With dead ends: 69 [2019-05-23 11:21:42,845 INFO L146 ILogger]: Without dead ends: 55 [2019-05-23 11:21:42,846 INFO L146 ILogger]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:21:42,847 INFO L146 ILogger]: Start minimizeSevpa. Operand 55 states. [2019-05-23 11:21:42,856 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 55 to 39. [2019-05-23 11:21:42,857 INFO L146 ILogger]: Start removeUnreachable. Operand 39 states. [2019-05-23 11:21:42,857 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2019-05-23 11:21:42,858 INFO L146 ILogger]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 28 [2019-05-23 11:21:42,859 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:42,859 INFO L146 ILogger]: Abstraction has 39 states and 40 transitions. [2019-05-23 11:21:42,860 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:21:42,860 INFO L146 ILogger]: Start isEmpty. Operand 39 states and 40 transitions. [2019-05-23 11:21:42,861 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 35 [2019-05-23 11:21:42,862 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:42,862 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:21:42,862 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:42,862 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:42,863 INFO L146 ILogger]: Analyzing trace with hash -662076050, now seen corresponding path program 2 times [2019-05-23 11:21:42,863 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:42,863 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:42,864 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:42,864 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:42,865 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:42,893 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:43,027 INFO L146 ILogger]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:43,027 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:43,027 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:43,045 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:21:43,097 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:21:43,097 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:43,098 INFO L146 ILogger]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:21:43,102 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:43,147 INFO L146 ILogger]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:43,170 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:43,170 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2019-05-23 11:21:43,170 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:21:43,171 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:21:43,171 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:21:43,171 INFO L146 ILogger]: Start difference. First operand 39 states and 40 transitions. Second operand 9 states. [2019-05-23 11:21:43,690 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:43,690 INFO L146 ILogger]: Finished difference Result 75 states and 77 transitions. [2019-05-23 11:21:43,691 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:21:43,691 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 34 [2019-05-23 11:21:43,692 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:43,693 INFO L146 ILogger]: With dead ends: 75 [2019-05-23 11:21:43,693 INFO L146 ILogger]: Without dead ends: 61 [2019-05-23 11:21:43,694 INFO L146 ILogger]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:21:43,695 INFO L146 ILogger]: Start minimizeSevpa. Operand 61 states. [2019-05-23 11:21:43,699 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 61 to 45. [2019-05-23 11:21:43,699 INFO L146 ILogger]: Start removeUnreachable. Operand 45 states. [2019-05-23 11:21:43,700 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2019-05-23 11:21:43,700 INFO L146 ILogger]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 34 [2019-05-23 11:21:43,700 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:43,701 INFO L146 ILogger]: Abstraction has 45 states and 46 transitions. [2019-05-23 11:21:43,701 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:21:43,701 INFO L146 ILogger]: Start isEmpty. Operand 45 states and 46 transitions. [2019-05-23 11:21:43,702 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 41 [2019-05-23 11:21:43,702 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:43,702 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:21:43,702 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:43,703 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:43,703 INFO L146 ILogger]: Analyzing trace with hash 990547094, now seen corresponding path program 3 times [2019-05-23 11:21:43,703 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:43,703 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:43,704 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:43,704 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:43,704 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:43,722 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:43,927 INFO L146 ILogger]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:43,927 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:43,927 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:43,942 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:21:43,971 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-05-23 11:21:43,971 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:43,972 INFO L146 ILogger]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:21:43,974 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:44,029 INFO L146 ILogger]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:44,058 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:44,058 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-05-23 11:21:44,059 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:21:44,059 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:21:44,059 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:21:44,059 INFO L146 ILogger]: Start difference. First operand 45 states and 46 transitions. Second operand 11 states. [2019-05-23 11:21:44,624 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:44,625 INFO L146 ILogger]: Finished difference Result 81 states and 83 transitions. [2019-05-23 11:21:44,625 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:21:44,625 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 40 [2019-05-23 11:21:44,626 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:44,626 INFO L146 ILogger]: With dead ends: 81 [2019-05-23 11:21:44,626 INFO L146 ILogger]: Without dead ends: 67 [2019-05-23 11:21:44,627 INFO L146 ILogger]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:21:44,628 INFO L146 ILogger]: Start minimizeSevpa. Operand 67 states. [2019-05-23 11:21:44,631 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 67 to 51. [2019-05-23 11:21:44,632 INFO L146 ILogger]: Start removeUnreachable. Operand 51 states. [2019-05-23 11:21:44,632 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2019-05-23 11:21:44,633 INFO L146 ILogger]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 40 [2019-05-23 11:21:44,633 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:44,633 INFO L146 ILogger]: Abstraction has 51 states and 52 transitions. [2019-05-23 11:21:44,633 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:21:44,633 INFO L146 ILogger]: Start isEmpty. Operand 51 states and 52 transitions. [2019-05-23 11:21:44,634 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 47 [2019-05-23 11:21:44,635 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:44,635 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 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 11:21:44,635 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:44,635 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:44,636 INFO L146 ILogger]: Analyzing trace with hash -2006739522, now seen corresponding path program 4 times [2019-05-23 11:21:44,636 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:44,636 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:44,637 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:44,637 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:44,637 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:44,650 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:44,808 INFO L146 ILogger]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:44,809 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:44,809 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:44,818 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:21:44,835 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:21:44,835 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:44,836 INFO L146 ILogger]: Trace formula consists of 58 conjuncts, 22 conjunts are in the unsatisfiable core [2019-05-23 11:21:44,838 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:44,879 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2019-05-23 11:21:44,880 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:21:44,887 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:21:44,888 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:21:44,888 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-05-23 11:21:45,070 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:21:45,071 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 46 [2019-05-23 11:21:45,072 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:21:45,102 INFO L146 ILogger]: treesize reduction 24, result has 47.8 percent of original size [2019-05-23 11:21:45,102 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:21:45,102 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-05-23 11:21:45,628 WARN L146 ILogger]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-05-23 11:21:45,628 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:21:45,629 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 108 [2019-05-23 11:21:45,630 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:21:45,712 INFO L146 ILogger]: treesize reduction 60, result has 38.8 percent of original size [2019-05-23 11:21:45,713 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:21:45,714 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:42, output treesize:38 [2019-05-23 11:21:46,438 WARN L146 ILogger]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-05-23 11:21:46,439 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:21:46,440 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 186 [2019-05-23 11:21:46,442 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:21:46,501 INFO L146 ILogger]: treesize reduction 96, result has 36.0 percent of original size [2019-05-23 11:21:46,503 INFO L146 ILogger]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-05-23 11:21:46,503 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 4 variables, input treesize:58, output treesize:54 [2019-05-23 11:22:24,465 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:22:24,466 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 100 [2019-05-23 11:22:24,468 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:22:24,491 INFO L146 ILogger]: treesize reduction 36, result has 32.1 percent of original size [2019-05-23 11:22:24,492 INFO L146 ILogger]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:22:24,493 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 6 variables, input treesize:61, output treesize:3 [2019-05-23 11:22:24,629 INFO L146 ILogger]: Checked inductivity of 40 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:24,652 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:24,653 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 25 [2019-05-23 11:22:24,653 INFO L146 ILogger]: Interpolant automaton has 25 states [2019-05-23 11:22:24,653 INFO L146 ILogger]: Constructing interpolant automaton starting with 25 interpolants. [2019-05-23 11:22:24,654 INFO L146 ILogger]: CoverageRelationStatistics Valid=85, Invalid=509, Unknown=6, NotChecked=0, Total=600 [2019-05-23 11:22:24,654 INFO L146 ILogger]: Start difference. First operand 51 states and 52 transitions. Second operand 25 states. [2019-05-23 11:22:25,494 WARN L146 ILogger]: Spent 197.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 13