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-examples/sorting_selectionsort_false-unreach-call_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:14:16,704 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:14:16,706 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:14:16,724 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:14:16,725 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:14:16,726 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:14:16,728 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:14:16,731 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:14:16,734 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:14:16,735 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:14:16,742 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:14:16,745 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:14:16,747 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:14:16,750 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:14:16,757 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:14:16,758 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:14:16,763 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:14:16,766 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:14:16,769 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:14:16,770 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:14:16,775 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:14:16,776 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:14:16,779 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-05-23 11:14:16,789 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:14:16,790 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:14:16,791 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:14:16,791 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:14:16,792 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:14:16,793 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:14:16,794 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:14:16,822 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:14:16,823 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:14:16,824 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:14:16,824 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:14:16,824 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:14:16,825 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:14:16,825 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:14:16,826 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:14:16,826 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:14:16,826 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:14:16,826 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:14:16,826 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:14:16,827 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:14:16,827 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:14:16,827 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:14:16,827 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:14:16,827 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:14:16,827 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:14:16,829 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:14:16,829 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:14:16,829 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:14:16,829 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:14:16,830 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:14:16,830 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:14:16,830 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:14:16,830 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:14:16,830 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:14:16,830 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:14:16,831 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 11:14:16,864 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:14:16,876 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:14:16,879 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:14:16,880 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:14:16,881 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:14:16,882 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-examples/sorting_selectionsort_false-unreach-call_ground.i [2019-05-23 11:14:16,933 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b604701/1986c30dfd2841c3955ac338106e521b/FLAG6248ae148 [2019-05-23 11:14:17,343 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:14:17,344 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-examples/sorting_selectionsort_false-unreach-call_ground.i [2019-05-23 11:14:17,359 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b604701/1986c30dfd2841c3955ac338106e521b/FLAG6248ae148 [2019-05-23 11:14:17,377 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b604701/1986c30dfd2841c3955ac338106e521b [2019-05-23 11:14:17,386 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:14:17,387 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:14:17,388 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:14:17,389 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:14:17,392 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:14:17,393 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,396 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ffc141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17, skipping insertion in model container [2019-05-23 11:14:17,396 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,404 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:14:17,428 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:14:17,658 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:14:17,665 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:14:17,707 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:14:17,741 INFO L146 ILogger]: Completed translation [2019-05-23 11:14:17,742 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17 WrapperNode [2019-05-23 11:14:17,742 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:14:17,743 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:14:17,743 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:14:17,743 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:14:17,753 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,771 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,806 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:14:17,807 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:14:17,807 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:14:17,807 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:14:17,868 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,868 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,870 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,873 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,883 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,890 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,892 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (1/1) ... [2019-05-23 11:14:17,894 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:14:17,895 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:14:17,895 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:14:17,895 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:14:17,896 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (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 11:14:17,958 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:14:17,958 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:14:17,958 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:14:17,959 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:14:17,959 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:14:17,959 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:14:18,514 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:14:18,515 INFO L146 ILogger]: Removed 17 assume(true) statements. [2019-05-23 11:14:18,516 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:14:18 BoogieIcfgContainer [2019-05-23 11:14:18,516 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:14:18,517 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:14:18,517 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:14:18,520 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:14:18,521 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:14:17" (1/3) ... [2019-05-23 11:14:18,521 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1318bbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:14:18, skipping insertion in model container [2019-05-23 11:14:18,522 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:14:17" (2/3) ... [2019-05-23 11:14:18,522 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1318bbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:14:18, skipping insertion in model container [2019-05-23 11:14:18,522 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:14:18" (3/3) ... [2019-05-23 11:14:18,524 INFO L146 ILogger]: Analyzing ICFG sorting_selectionsort_false-unreach-call_ground.i [2019-05-23 11:14:18,534 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:14:18,543 INFO L146 ILogger]: Appying trace abstraction to program that has 3 error locations. [2019-05-23 11:14:18,560 INFO L146 ILogger]: Starting to check reachability of 3 error locations. [2019-05-23 11:14:18,590 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:14:18,591 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:14:18,591 INFO L146 ILogger]: Hoare is true [2019-05-23 11:14:18,591 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:14:18,591 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:14:18,591 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:14:18,592 INFO L146 ILogger]: Difference is false [2019-05-23 11:14:18,592 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:14:18,592 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:14:18,608 INFO L146 ILogger]: Start isEmpty. Operand 91 states. [2019-05-23 11:14:18,616 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 21 [2019-05-23 11:14:18,616 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:18,617 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] [2019-05-23 11:14:18,619 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:18,624 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:18,624 INFO L146 ILogger]: Analyzing trace with hash -1562251155, now seen corresponding path program 1 times [2019-05-23 11:14:18,625 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:18,626 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:18,663 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:18,663 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:18,663 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:18,694 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:18,730 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 11:14:18,733 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:14:18,737 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:14:18,741 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:14:18,752 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:14:18,753 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:14:18,754 INFO L146 ILogger]: Start difference. First operand 91 states. Second operand 2 states. [2019-05-23 11:14:18,776 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:18,776 INFO L146 ILogger]: Finished difference Result 174 states and 210 transitions. [2019-05-23 11:14:18,776 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:14:18,777 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 20 [2019-05-23 11:14:18,778 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:18,787 INFO L146 ILogger]: With dead ends: 174 [2019-05-23 11:14:18,787 INFO L146 ILogger]: Without dead ends: 85 [2019-05-23 11:14:18,791 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 11:14:18,807 INFO L146 ILogger]: Start minimizeSevpa. Operand 85 states. [2019-05-23 11:14:18,825 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-05-23 11:14:18,827 INFO L146 ILogger]: Start removeUnreachable. Operand 85 states. [2019-05-23 11:14:18,828 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2019-05-23 11:14:18,830 INFO L146 ILogger]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 20 [2019-05-23 11:14:18,831 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:18,831 INFO L146 ILogger]: Abstraction has 85 states and 93 transitions. [2019-05-23 11:14:18,831 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:14:18,831 INFO L146 ILogger]: Start isEmpty. Operand 85 states and 93 transitions. [2019-05-23 11:14:18,832 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 21 [2019-05-23 11:14:18,833 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:18,833 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] [2019-05-23 11:14:18,833 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:18,834 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:18,834 INFO L146 ILogger]: Analyzing trace with hash -517721846, now seen corresponding path program 1 times [2019-05-23 11:14:18,834 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:18,834 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:18,835 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:18,836 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:18,836 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:18,848 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:18,904 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 11:14:18,905 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:14:18,905 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:14:18,906 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:14:18,907 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:14:18,907 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:14:18,908 INFO L146 ILogger]: Start difference. First operand 85 states and 93 transitions. Second operand 3 states. [2019-05-23 11:14:19,201 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:19,201 INFO L146 ILogger]: Finished difference Result 162 states and 178 transitions. [2019-05-23 11:14:19,202 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:14:19,202 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 20 [2019-05-23 11:14:19,203 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:19,205 INFO L146 ILogger]: With dead ends: 162 [2019-05-23 11:14:19,205 INFO L146 ILogger]: Without dead ends: 142 [2019-05-23 11:14:19,207 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 11:14:19,208 INFO L146 ILogger]: Start minimizeSevpa. Operand 142 states. [2019-05-23 11:14:19,216 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 142 to 86. [2019-05-23 11:14:19,217 INFO L146 ILogger]: Start removeUnreachable. Operand 86 states. [2019-05-23 11:14:19,218 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2019-05-23 11:14:19,218 INFO L146 ILogger]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 20 [2019-05-23 11:14:19,219 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:19,219 INFO L146 ILogger]: Abstraction has 86 states and 94 transitions. [2019-05-23 11:14:19,219 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:14:19,219 INFO L146 ILogger]: Start isEmpty. Operand 86 states and 94 transitions. [2019-05-23 11:14:19,220 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 25 [2019-05-23 11:14:19,221 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:19,221 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] [2019-05-23 11:14:19,221 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:19,221 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:19,222 INFO L146 ILogger]: Analyzing trace with hash 1597505245, now seen corresponding path program 1 times [2019-05-23 11:14:19,222 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:19,222 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:19,223 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:19,223 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:19,223 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:19,245 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:19,330 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 11:14:19,330 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:14:19,331 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:14:19,331 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:14:19,331 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:14:19,332 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:14:19,332 INFO L146 ILogger]: Start difference. First operand 86 states and 94 transitions. Second operand 4 states. [2019-05-23 11:14:19,772 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:19,773 INFO L146 ILogger]: Finished difference Result 229 states and 253 transitions. [2019-05-23 11:14:19,773 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:14:19,773 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 24 [2019-05-23 11:14:19,774 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:19,775 INFO L146 ILogger]: With dead ends: 229 [2019-05-23 11:14:19,776 INFO L146 ILogger]: Without dead ends: 152 [2019-05-23 11:14:19,777 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 11:14:19,778 INFO L146 ILogger]: Start minimizeSevpa. Operand 152 states. [2019-05-23 11:14:19,786 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 152 to 89. [2019-05-23 11:14:19,787 INFO L146 ILogger]: Start removeUnreachable. Operand 89 states. [2019-05-23 11:14:19,788 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2019-05-23 11:14:19,788 INFO L146 ILogger]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 24 [2019-05-23 11:14:19,788 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:19,788 INFO L146 ILogger]: Abstraction has 89 states and 97 transitions. [2019-05-23 11:14:19,789 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:14:19,789 INFO L146 ILogger]: Start isEmpty. Operand 89 states and 97 transitions. [2019-05-23 11:14:19,790 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 32 [2019-05-23 11:14:19,790 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:19,790 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] [2019-05-23 11:14:19,791 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:19,791 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:19,791 INFO L146 ILogger]: Analyzing trace with hash 1496831639, now seen corresponding path program 1 times [2019-05-23 11:14:19,791 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:19,791 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:19,793 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:19,793 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:19,793 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:19,806 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:20,004 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 11:14:20,004 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:20,005 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 11:14:20,022 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:20,064 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:20,066 INFO L146 ILogger]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:14:20,076 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:20,145 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 11:14:20,169 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:20,170 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-05-23 11:14:20,170 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:14:20,170 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:14:20,171 INFO L146 ILogger]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:14:20,171 INFO L146 ILogger]: Start difference. First operand 89 states and 97 transitions. Second operand 8 states. [2019-05-23 11:14:20,323 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:20,324 INFO L146 ILogger]: Finished difference Result 239 states and 264 transitions. [2019-05-23 11:14:20,324 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 11:14:20,324 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 31 [2019-05-23 11:14:20,325 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:20,326 INFO L146 ILogger]: With dead ends: 239 [2019-05-23 11:14:20,326 INFO L146 ILogger]: Without dead ends: 162 [2019-05-23 11:14:20,327 INFO L146 ILogger]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:14:20,328 INFO L146 ILogger]: Start minimizeSevpa. Operand 162 states. [2019-05-23 11:14:20,335 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 162 to 99. [2019-05-23 11:14:20,335 INFO L146 ILogger]: Start removeUnreachable. Operand 99 states. [2019-05-23 11:14:20,336 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2019-05-23 11:14:20,336 INFO L146 ILogger]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 31 [2019-05-23 11:14:20,337 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:20,337 INFO L146 ILogger]: Abstraction has 99 states and 108 transitions. [2019-05-23 11:14:20,337 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:14:20,337 INFO L146 ILogger]: Start isEmpty. Operand 99 states and 108 transitions. [2019-05-23 11:14:20,338 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 39 [2019-05-23 11:14:20,338 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:20,339 INFO L146 ILogger]: trace histogram [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] [2019-05-23 11:14:20,339 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:20,339 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:20,339 INFO L146 ILogger]: Analyzing trace with hash -2002601571, now seen corresponding path program 2 times [2019-05-23 11:14:20,340 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:20,340 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:20,341 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:20,341 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:20,341 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:20,358 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:20,731 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:14:20,731 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:20,732 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 11:14:20,754 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:14:20,790 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-05-23 11:14:20,790 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:20,791 INFO L146 ILogger]: Trace formula consists of 47 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:14:20,794 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:21,062 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-05-23 11:14:21,063 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:14:21,069 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:21,069 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:14:21,069 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-05-23 11:14:21,127 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-05-23 11:14:21,154 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:14:21,154 INFO L146 ILogger]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2019-05-23 11:14:21,155 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:14:21,155 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:14:21,155 INFO L146 ILogger]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:14:21,157 INFO L146 ILogger]: Start difference. First operand 99 states and 108 transitions. Second operand 13 states. [2019-05-23 11:14:22,503 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:22,503 INFO L146 ILogger]: Finished difference Result 299 states and 335 transitions. [2019-05-23 11:14:22,504 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:14:22,505 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 38 [2019-05-23 11:14:22,505 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:22,507 INFO L146 ILogger]: With dead ends: 299 [2019-05-23 11:14:22,507 INFO L146 ILogger]: Without dead ends: 222 [2019-05-23 11:14:22,508 INFO L146 ILogger]: 0 DeclaredPredicates, 57 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2019-05-23 11:14:22,509 INFO L146 ILogger]: Start minimizeSevpa. Operand 222 states. [2019-05-23 11:14:22,517 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 222 to 137. [2019-05-23 11:14:22,518 INFO L146 ILogger]: Start removeUnreachable. Operand 137 states. [2019-05-23 11:14:22,519 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 137 states to 137 states and 150 transitions. [2019-05-23 11:14:22,519 INFO L146 ILogger]: Start accepts. Automaton has 137 states and 150 transitions. Word has length 38 [2019-05-23 11:14:22,519 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:22,520 INFO L146 ILogger]: Abstraction has 137 states and 150 transitions. [2019-05-23 11:14:22,520 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:14:22,520 INFO L146 ILogger]: Start isEmpty. Operand 137 states and 150 transitions. [2019-05-23 11:14:22,522 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 58 [2019-05-23 11:14:22,522 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:22,522 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-05-23 11:14:22,522 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:22,523 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:22,523 INFO L146 ILogger]: Analyzing trace with hash -684425057, now seen corresponding path program 1 times [2019-05-23 11:14:22,523 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:22,523 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:22,526 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:22,526 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:22,526 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:22,559 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:22,690 INFO L146 ILogger]: Checked inductivity of 31 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:22,691 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:22,691 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 11:14:22,700 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:22,730 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:22,731 INFO L146 ILogger]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:14:22,734 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:22,893 INFO L146 ILogger]: Checked inductivity of 31 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:22,911 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:22,912 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-05-23 11:14:22,912 INFO L146 ILogger]: Interpolant automaton has 12 states [2019-05-23 11:14:22,913 INFO L146 ILogger]: Constructing interpolant automaton starting with 12 interpolants. [2019-05-23 11:14:22,913 INFO L146 ILogger]: CoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:14:22,913 INFO L146 ILogger]: Start difference. First operand 137 states and 150 transitions. Second operand 12 states. [2019-05-23 11:14:23,083 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:23,083 INFO L146 ILogger]: Finished difference Result 266 states and 292 transitions. [2019-05-23 11:14:23,084 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:14:23,084 INFO L146 ILogger]: Start accepts. Automaton has 12 states. Word has length 57 [2019-05-23 11:14:23,084 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:23,086 INFO L146 ILogger]: With dead ends: 266 [2019-05-23 11:14:23,086 INFO L146 ILogger]: Without dead ends: 171 [2019-05-23 11:14:23,088 INFO L146 ILogger]: 0 DeclaredPredicates, 64 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:14:23,088 INFO L146 ILogger]: Start minimizeSevpa. Operand 171 states. [2019-05-23 11:14:23,095 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 171 to 147. [2019-05-23 11:14:23,096 INFO L146 ILogger]: Start removeUnreachable. Operand 147 states. [2019-05-23 11:14:23,097 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 147 states to 147 states and 161 transitions. [2019-05-23 11:14:23,097 INFO L146 ILogger]: Start accepts. Automaton has 147 states and 161 transitions. Word has length 57 [2019-05-23 11:14:23,097 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:23,097 INFO L146 ILogger]: Abstraction has 147 states and 161 transitions. [2019-05-23 11:14:23,098 INFO L146 ILogger]: Interpolant automaton has 12 states. [2019-05-23 11:14:23,098 INFO L146 ILogger]: Start isEmpty. Operand 147 states and 161 transitions. [2019-05-23 11:14:23,100 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 65 [2019-05-23 11:14:23,100 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:23,100 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2019-05-23 11:14:23,101 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:23,101 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:23,101 INFO L146 ILogger]: Analyzing trace with hash 1876953125, now seen corresponding path program 2 times [2019-05-23 11:14:23,101 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:23,101 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:23,102 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:23,102 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:23,102 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:23,117 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:23,254 INFO L146 ILogger]: Checked inductivity of 53 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:23,254 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:23,254 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 11:14:23,263 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:14:23,306 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:14:23,307 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:23,308 INFO L146 ILogger]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:14:23,311 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:23,481 INFO L146 ILogger]: Checked inductivity of 53 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:23,500 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:23,501 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2019-05-23 11:14:23,501 INFO L146 ILogger]: Interpolant automaton has 14 states [2019-05-23 11:14:23,502 INFO L146 ILogger]: Constructing interpolant automaton starting with 14 interpolants. [2019-05-23 11:14:23,503 INFO L146 ILogger]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:14:23,503 INFO L146 ILogger]: Start difference. First operand 147 states and 161 transitions. Second operand 14 states. [2019-05-23 11:14:23,685 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:23,686 INFO L146 ILogger]: Finished difference Result 276 states and 303 transitions. [2019-05-23 11:14:23,691 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 11:14:23,692 INFO L146 ILogger]: Start accepts. Automaton has 14 states. Word has length 64 [2019-05-23 11:14:23,692 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:23,693 INFO L146 ILogger]: With dead ends: 276 [2019-05-23 11:14:23,693 INFO L146 ILogger]: Without dead ends: 181 [2019-05-23 11:14:23,694 INFO L146 ILogger]: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:14:23,695 INFO L146 ILogger]: Start minimizeSevpa. Operand 181 states. [2019-05-23 11:14:23,703 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 181 to 157. [2019-05-23 11:14:23,704 INFO L146 ILogger]: Start removeUnreachable. Operand 157 states. [2019-05-23 11:14:23,705 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 157 states to 157 states and 172 transitions. [2019-05-23 11:14:23,705 INFO L146 ILogger]: Start accepts. Automaton has 157 states and 172 transitions. Word has length 64 [2019-05-23 11:14:23,706 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:23,706 INFO L146 ILogger]: Abstraction has 157 states and 172 transitions. [2019-05-23 11:14:23,706 INFO L146 ILogger]: Interpolant automaton has 14 states. [2019-05-23 11:14:23,706 INFO L146 ILogger]: Start isEmpty. Operand 157 states and 172 transitions. [2019-05-23 11:14:23,708 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 72 [2019-05-23 11:14:23,709 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:23,709 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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] [2019-05-23 11:14:23,709 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:23,710 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:23,710 INFO L146 ILogger]: Analyzing trace with hash -279175713, now seen corresponding path program 3 times [2019-05-23 11:14:23,710 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:23,710 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:23,711 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:23,711 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:23,711 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:23,727 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:23,907 INFO L146 ILogger]: Checked inductivity of 82 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:23,908 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:23,908 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:23,918 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:14:24,003 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-05-23 11:14:24,003 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:24,004 INFO L146 ILogger]: Trace formula consists of 105 conjuncts, 30 conjunts are in the unsatisfiable core [2019-05-23 11:14:24,008 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:24,615 WARN L146 ILogger]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2019-05-23 11:14:24,806 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:24,807 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2019-05-23 11:14:24,808 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:14:24,825 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:24,825 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:14:24,825 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:3 [2019-05-23 11:14:24,888 INFO L146 ILogger]: Checked inductivity of 82 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2019-05-23 11:14:24,906 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:24,906 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 18] total 25 [2019-05-23 11:14:24,907 INFO L146 ILogger]: Interpolant automaton has 25 states [2019-05-23 11:14:24,907 INFO L146 ILogger]: Constructing interpolant automaton starting with 25 interpolants. [2019-05-23 11:14:24,909 INFO L146 ILogger]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2019-05-23 11:14:24,909 INFO L146 ILogger]: Start difference. First operand 157 states and 172 transitions. Second operand 25 states. [2019-05-23 11:14:25,517 WARN L146 ILogger]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2019-05-23 11:14:27,740 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:27,740 INFO L146 ILogger]: Finished difference Result 451 states and 500 transitions. [2019-05-23 11:14:27,741 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-05-23 11:14:27,741 INFO L146 ILogger]: Start accepts. Automaton has 25 states. Word has length 71 [2019-05-23 11:14:27,742 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:27,743 INFO L146 ILogger]: With dead ends: 451 [2019-05-23 11:14:27,744 INFO L146 ILogger]: Without dead ends: 356 [2019-05-23 11:14:27,745 INFO L146 ILogger]: 0 DeclaredPredicates, 110 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 795 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=551, Invalid=2419, Unknown=0, NotChecked=0, Total=2970 [2019-05-23 11:14:27,746 INFO L146 ILogger]: Start minimizeSevpa. Operand 356 states. [2019-05-23 11:14:27,756 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 356 to 235. [2019-05-23 11:14:27,756 INFO L146 ILogger]: Start removeUnreachable. Operand 235 states. [2019-05-23 11:14:27,757 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 235 states to 235 states and 258 transitions. [2019-05-23 11:14:27,757 INFO L146 ILogger]: Start accepts. Automaton has 235 states and 258 transitions. Word has length 71 [2019-05-23 11:14:27,758 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:27,758 INFO L146 ILogger]: Abstraction has 235 states and 258 transitions. [2019-05-23 11:14:27,758 INFO L146 ILogger]: Interpolant automaton has 25 states. [2019-05-23 11:14:27,758 INFO L146 ILogger]: Start isEmpty. Operand 235 states and 258 transitions. [2019-05-23 11:14:27,761 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 80 [2019-05-23 11:14:27,761 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:27,761 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 5, 5, 5, 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] [2019-05-23 11:14:27,762 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:27,762 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:27,762 INFO L146 ILogger]: Analyzing trace with hash -961844246, now seen corresponding path program 1 times [2019-05-23 11:14:27,762 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:27,762 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:27,763 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:27,763 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:27,764 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:27,776 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:27,837 INFO L146 ILogger]: Checked inductivity of 108 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-05-23 11:14:27,837 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:27,837 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:27,846 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:27,870 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:27,871 INFO L146 ILogger]: Trace formula consists of 127 conjuncts, 9 conjunts are in the unsatisfiable core [2019-05-23 11:14:27,874 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:27,973 INFO L146 ILogger]: Checked inductivity of 108 backedges. 0 proven. 101 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:27,991 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:27,991 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 10] total 12 [2019-05-23 11:14:27,992 INFO L146 ILogger]: Interpolant automaton has 12 states [2019-05-23 11:14:27,992 INFO L146 ILogger]: Constructing interpolant automaton starting with 12 interpolants. [2019-05-23 11:14:27,992 INFO L146 ILogger]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:14:27,992 INFO L146 ILogger]: Start difference. First operand 235 states and 258 transitions. Second operand 12 states. [2019-05-23 11:14:28,662 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:28,662 INFO L146 ILogger]: Finished difference Result 547 states and 603 transitions. [2019-05-23 11:14:28,663 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:14:28,663 INFO L146 ILogger]: Start accepts. Automaton has 12 states. Word has length 79 [2019-05-23 11:14:28,663 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:28,668 INFO L146 ILogger]: With dead ends: 547 [2019-05-23 11:14:28,668 INFO L146 ILogger]: Without dead ends: 436 [2019-05-23 11:14:28,669 INFO L146 ILogger]: 0 DeclaredPredicates, 99 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=274, Invalid=538, Unknown=0, NotChecked=0, Total=812 [2019-05-23 11:14:28,670 INFO L146 ILogger]: Start minimizeSevpa. Operand 436 states. [2019-05-23 11:14:28,680 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 436 to 245. [2019-05-23 11:14:28,680 INFO L146 ILogger]: Start removeUnreachable. Operand 245 states. [2019-05-23 11:14:28,681 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 245 states to 245 states and 271 transitions. [2019-05-23 11:14:28,681 INFO L146 ILogger]: Start accepts. Automaton has 245 states and 271 transitions. Word has length 79 [2019-05-23 11:14:28,681 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:28,682 INFO L146 ILogger]: Abstraction has 245 states and 271 transitions. [2019-05-23 11:14:28,682 INFO L146 ILogger]: Interpolant automaton has 12 states. [2019-05-23 11:14:28,682 INFO L146 ILogger]: Start isEmpty. Operand 245 states and 271 transitions. [2019-05-23 11:14:28,684 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 93 [2019-05-23 11:14:28,684 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:28,684 INFO L146 ILogger]: trace histogram [7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:28,684 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:28,685 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:28,685 INFO L146 ILogger]: Analyzing trace with hash 1047461830, now seen corresponding path program 1 times [2019-05-23 11:14:28,685 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:28,685 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:28,686 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:28,686 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:28,686 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:28,694 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:28,751 INFO L146 ILogger]: Checked inductivity of 161 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2019-05-23 11:14:28,752 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:14:28,752 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:14:28,752 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:14:28,752 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:14:28,752 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:14:28,753 INFO L146 ILogger]: Start difference. First operand 245 states and 271 transitions. Second operand 3 states. [2019-05-23 11:14:28,877 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:28,877 INFO L146 ILogger]: Finished difference Result 411 states and 450 transitions. [2019-05-23 11:14:28,877 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:14:28,877 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 92 [2019-05-23 11:14:28,878 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:28,880 INFO L146 ILogger]: With dead ends: 411 [2019-05-23 11:14:28,880 INFO L146 ILogger]: Without dead ends: 309 [2019-05-23 11:14:28,882 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 11:14:28,882 INFO L146 ILogger]: Start minimizeSevpa. Operand 309 states. [2019-05-23 11:14:28,889 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 309 to 245. [2019-05-23 11:14:28,889 INFO L146 ILogger]: Start removeUnreachable. Operand 245 states. [2019-05-23 11:14:28,890 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 245 states to 245 states and 269 transitions. [2019-05-23 11:14:28,890 INFO L146 ILogger]: Start accepts. Automaton has 245 states and 269 transitions. Word has length 92 [2019-05-23 11:14:28,892 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:28,892 INFO L146 ILogger]: Abstraction has 245 states and 269 transitions. [2019-05-23 11:14:28,892 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:14:28,892 INFO L146 ILogger]: Start isEmpty. Operand 245 states and 269 transitions. [2019-05-23 11:14:28,893 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 94 [2019-05-23 11:14:28,893 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:28,894 INFO L146 ILogger]: trace histogram [7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:28,894 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:28,894 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:28,894 INFO L146 ILogger]: Analyzing trace with hash 1523497995, now seen corresponding path program 1 times [2019-05-23 11:14:28,894 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:28,895 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:28,897 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:28,897 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:28,897 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:28,924 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:29,172 INFO L146 ILogger]: Checked inductivity of 149 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:29,173 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:29,173 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:29,184 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:29,205 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:29,205 INFO L146 ILogger]: Trace formula consists of 146 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:14:29,209 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:29,346 INFO L146 ILogger]: Checked inductivity of 149 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:29,364 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:29,365 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2019-05-23 11:14:29,365 INFO L146 ILogger]: Interpolant automaton has 20 states [2019-05-23 11:14:29,366 INFO L146 ILogger]: Constructing interpolant automaton starting with 20 interpolants. [2019-05-23 11:14:29,366 INFO L146 ILogger]: CoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:14:29,366 INFO L146 ILogger]: Start difference. First operand 245 states and 269 transitions. Second operand 20 states. [2019-05-23 11:14:29,560 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:29,560 INFO L146 ILogger]: Finished difference Result 411 states and 451 transitions. [2019-05-23 11:14:29,560 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 11:14:29,560 INFO L146 ILogger]: Start accepts. Automaton has 20 states. Word has length 93 [2019-05-23 11:14:29,561 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:29,562 INFO L146 ILogger]: With dead ends: 411 [2019-05-23 11:14:29,562 INFO L146 ILogger]: Without dead ends: 292 [2019-05-23 11:14:29,563 INFO L146 ILogger]: 0 DeclaredPredicates, 104 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:14:29,563 INFO L146 ILogger]: Start minimizeSevpa. Operand 292 states. [2019-05-23 11:14:29,571 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 292 to 262. [2019-05-23 11:14:29,571 INFO L146 ILogger]: Start removeUnreachable. Operand 262 states. [2019-05-23 11:14:29,572 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 262 states to 262 states and 288 transitions. [2019-05-23 11:14:29,572 INFO L146 ILogger]: Start accepts. Automaton has 262 states and 288 transitions. Word has length 93 [2019-05-23 11:14:29,573 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:29,573 INFO L146 ILogger]: Abstraction has 262 states and 288 transitions. [2019-05-23 11:14:29,573 INFO L146 ILogger]: Interpolant automaton has 20 states. [2019-05-23 11:14:29,573 INFO L146 ILogger]: Start isEmpty. Operand 262 states and 288 transitions. [2019-05-23 11:14:29,574 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 101 [2019-05-23 11:14:29,574 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:29,575 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:29,575 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:29,575 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:29,575 INFO L146 ILogger]: Analyzing trace with hash -451184997, now seen corresponding path program 2 times [2019-05-23 11:14:29,576 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:29,576 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:29,577 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:29,577 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:14:29,577 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:29,590 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:30,463 INFO L146 ILogger]: Checked inductivity of 197 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:30,463 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:30,464 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:30,472 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:14:30,509 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:14:30,509 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:30,511 INFO L146 ILogger]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2019-05-23 11:14:30,518 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:30,658 INFO L146 ILogger]: Checked inductivity of 197 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:30,677 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:30,677 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2019-05-23 11:14:30,678 INFO L146 ILogger]: Interpolant automaton has 22 states [2019-05-23 11:14:30,678 INFO L146 ILogger]: Constructing interpolant automaton starting with 22 interpolants. [2019-05-23 11:14:30,678 INFO L146 ILogger]: CoverageRelationStatistics Valid=177, Invalid=285, Unknown=0, NotChecked=0, Total=462 [2019-05-23 11:14:30,679 INFO L146 ILogger]: Start difference. First operand 262 states and 288 transitions. Second operand 22 states. [2019-05-23 11:14:30,962 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:30,962 INFO L146 ILogger]: Finished difference Result 428 states and 470 transitions. [2019-05-23 11:14:30,962 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:14:30,963 INFO L146 ILogger]: Start accepts. Automaton has 22 states. Word has length 100 [2019-05-23 11:14:30,963 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:30,964 INFO L146 ILogger]: With dead ends: 428 [2019-05-23 11:14:30,969 INFO L146 ILogger]: Without dead ends: 309 [2019-05-23 11:14:30,970 INFO L146 ILogger]: 0 DeclaredPredicates, 112 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=177, Invalid=285, Unknown=0, NotChecked=0, Total=462 [2019-05-23 11:14:30,970 INFO L146 ILogger]: Start minimizeSevpa. Operand 309 states. [2019-05-23 11:14:30,977 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 309 to 279. [2019-05-23 11:14:30,977 INFO L146 ILogger]: Start removeUnreachable. Operand 279 states. [2019-05-23 11:14:30,978 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 279 states to 279 states and 307 transitions. [2019-05-23 11:14:30,978 INFO L146 ILogger]: Start accepts. Automaton has 279 states and 307 transitions. Word has length 100 [2019-05-23 11:14:30,979 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:30,979 INFO L146 ILogger]: Abstraction has 279 states and 307 transitions. [2019-05-23 11:14:30,979 INFO L146 ILogger]: Interpolant automaton has 22 states. [2019-05-23 11:14:30,979 INFO L146 ILogger]: Start isEmpty. Operand 279 states and 307 transitions. [2019-05-23 11:14:30,980 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 108 [2019-05-23 11:14:30,980 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:30,980 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:30,981 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:30,981 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:30,981 INFO L146 ILogger]: Analyzing trace with hash 1989327371, now seen corresponding path program 3 times [2019-05-23 11:14:30,981 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:30,981 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:30,982 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:30,982 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:30,982 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:30,994 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:31,215 INFO L146 ILogger]: Checked inductivity of 252 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:31,215 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:31,216 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:31,224 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:14:31,249 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-05-23 11:14:31,249 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:31,250 INFO L146 ILogger]: Trace formula consists of 116 conjuncts, 33 conjunts are in the unsatisfiable core [2019-05-23 11:14:31,254 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:31,598 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:14:31,600 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:31,600 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 35 [2019-05-23 11:14:31,601 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:14:31,618 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:31,619 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:14:31,619 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:40 [2019-05-23 11:14:31,652 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:14:31,654 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:31,654 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 32 [2019-05-23 11:14:31,655 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:14:31,664 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:31,665 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:14:31,665 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:29 [2019-05-23 11:14:31,852 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:31,852 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2019-05-23 11:14:31,853 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:14:31,854 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:31,854 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:14:31,855 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:5 [2019-05-23 11:14:31,963 INFO L146 ILogger]: Checked inductivity of 252 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2019-05-23 11:14:31,982 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:31,982 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 22] total 33 [2019-05-23 11:14:31,982 INFO L146 ILogger]: Interpolant automaton has 33 states [2019-05-23 11:14:31,983 INFO L146 ILogger]: Constructing interpolant automaton starting with 33 interpolants. [2019-05-23 11:14:31,983 INFO L146 ILogger]: CoverageRelationStatistics Valid=228, Invalid=828, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 11:14:31,983 INFO L146 ILogger]: Start difference. First operand 279 states and 307 transitions. Second operand 33 states. [2019-05-23 11:14:35,291 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:35,292 INFO L146 ILogger]: Finished difference Result 653 states and 721 transitions. [2019-05-23 11:14:35,292 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-05-23 11:14:35,292 INFO L146 ILogger]: Start accepts. Automaton has 33 states. Word has length 107 [2019-05-23 11:14:35,293 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:35,296 INFO L146 ILogger]: With dead ends: 653 [2019-05-23 11:14:35,296 INFO L146 ILogger]: Without dead ends: 534 [2019-05-23 11:14:35,298 INFO L146 ILogger]: 0 DeclaredPredicates, 156 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1536 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=863, Invalid=3829, Unknown=0, NotChecked=0, Total=4692 [2019-05-23 11:14:35,298 INFO L146 ILogger]: Start minimizeSevpa. Operand 534 states. [2019-05-23 11:14:35,309 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 534 to 362. [2019-05-23 11:14:35,309 INFO L146 ILogger]: Start removeUnreachable. Operand 362 states. [2019-05-23 11:14:35,310 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 362 states to 362 states and 401 transitions. [2019-05-23 11:14:35,310 INFO L146 ILogger]: Start accepts. Automaton has 362 states and 401 transitions. Word has length 107 [2019-05-23 11:14:35,310 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:35,310 INFO L146 ILogger]: Abstraction has 362 states and 401 transitions. [2019-05-23 11:14:35,311 INFO L146 ILogger]: Interpolant automaton has 33 states. [2019-05-23 11:14:35,311 INFO L146 ILogger]: Start isEmpty. Operand 362 states and 401 transitions. [2019-05-23 11:14:35,312 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 115 [2019-05-23 11:14:35,312 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:35,312 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:35,313 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:35,313 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:35,313 INFO L146 ILogger]: Analyzing trace with hash -1509944303, now seen corresponding path program 4 times [2019-05-23 11:14:35,313 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:35,313 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:35,314 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:35,314 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:35,314 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:35,325 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:35,528 INFO L146 ILogger]: Checked inductivity of 314 backedges. 0 proven. 307 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:35,529 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:35,529 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:35,538 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:14:35,563 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:14:35,563 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:35,564 INFO L146 ILogger]: Trace formula consists of 154 conjuncts, 37 conjunts are in the unsatisfiable core [2019-05-23 11:14:35,566 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:36,216 INFO L146 ILogger]: treesize reduction 76, result has 51.0 percent of original size [2019-05-23 11:14:36,217 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 5 case distinctions, treesize of input 71 treesize of output 102 [2019-05-23 11:14:36,221 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:14:36,253 INFO L146 ILogger]: treesize reduction 53, result has 54.3 percent of original size [2019-05-23 11:14:36,254 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:14:36,255 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:74, output treesize:50 [2019-05-23 11:14:37,001 INFO L146 ILogger]: treesize reduction 56, result has 51.7 percent of original size [2019-05-23 11:14:37,002 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 49 treesize of output 79 [2019-05-23 11:14:37,004 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:14:37,053 INFO L146 ILogger]: treesize reduction 24, result has 78.2 percent of original size [2019-05-23 11:14:37,056 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:14:37,057 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:62, output treesize:91 [2019-05-23 11:14:39,157 WARN L146 ILogger]: Spent 1.90 s on a formula simplification. DAG size of input: 33 DAG size of output: 19 [2019-05-23 11:14:39,348 INFO L146 ILogger]: treesize reduction 9, result has 10.0 percent of original size [2019-05-23 11:14:39,349 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 12 [2019-05-23 11:14:39,349 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:14:39,350 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:39,350 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:14:39,351 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:5 [2019-05-23 11:14:39,497 INFO L146 ILogger]: Checked inductivity of 314 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2019-05-23 11:14:39,515 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:39,515 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 25] total 36 [2019-05-23 11:14:39,516 INFO L146 ILogger]: Interpolant automaton has 36 states [2019-05-23 11:14:39,516 INFO L146 ILogger]: Constructing interpolant automaton starting with 36 interpolants. [2019-05-23 11:14:39,517 INFO L146 ILogger]: CoverageRelationStatistics Valid=254, Invalid=1005, Unknown=1, NotChecked=0, Total=1260 [2019-05-23 11:14:39,517 INFO L146 ILogger]: Start difference. First operand 362 states and 401 transitions. Second operand 36 states. [2019-05-23 11:14:45,191 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:45,191 INFO L146 ILogger]: Finished difference Result 757 states and 839 transitions. [2019-05-23 11:14:45,191 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-05-23 11:14:45,192 INFO L146 ILogger]: Start accepts. Automaton has 36 states. Word has length 114 [2019-05-23 11:14:45,192 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:45,196 INFO L146 ILogger]: With dead ends: 757 [2019-05-23 11:14:45,196 INFO L146 ILogger]: Without dead ends: 630 [2019-05-23 11:14:45,198 INFO L146 ILogger]: 0 DeclaredPredicates, 159 GetRequests, 91 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1476 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=641, Invalid=3780, Unknown=1, NotChecked=0, Total=4422 [2019-05-23 11:14:45,199 INFO L146 ILogger]: Start minimizeSevpa. Operand 630 states. [2019-05-23 11:14:45,224 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 630 to 379. [2019-05-23 11:14:45,225 INFO L146 ILogger]: Start removeUnreachable. Operand 379 states. [2019-05-23 11:14:45,225 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 379 states to 379 states and 420 transitions. [2019-05-23 11:14:45,226 INFO L146 ILogger]: Start accepts. Automaton has 379 states and 420 transitions. Word has length 114 [2019-05-23 11:14:45,226 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:45,226 INFO L146 ILogger]: Abstraction has 379 states and 420 transitions. [2019-05-23 11:14:45,226 INFO L146 ILogger]: Interpolant automaton has 36 states. [2019-05-23 11:14:45,226 INFO L146 ILogger]: Start isEmpty. Operand 379 states and 420 transitions. [2019-05-23 11:14:45,228 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 122 [2019-05-23 11:14:45,228 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:45,228 INFO L146 ILogger]: trace histogram [11, 11, 11, 11, 10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:45,228 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:45,228 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:45,229 INFO L146 ILogger]: Analyzing trace with hash 1258325835, now seen corresponding path program 5 times [2019-05-23 11:14:45,229 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:45,229 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:45,230 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:45,230 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:45,230 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:45,242 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:45,903 INFO L146 ILogger]: Checked inductivity of 383 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:45,903 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:45,903 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:45,914 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:14:45,947 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2019-05-23 11:14:45,948 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:45,952 INFO L146 ILogger]: Trace formula consists of 186 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:14:45,953 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:46,507 INFO L146 ILogger]: Checked inductivity of 383 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:46,527 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:46,527 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2019-05-23 11:14:46,527 INFO L146 ILogger]: Interpolant automaton has 28 states [2019-05-23 11:14:46,528 INFO L146 ILogger]: Constructing interpolant automaton starting with 28 interpolants. [2019-05-23 11:14:46,528 INFO L146 ILogger]: CoverageRelationStatistics Valid=288, Invalid=468, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:14:46,528 INFO L146 ILogger]: Start difference. First operand 379 states and 420 transitions. Second operand 28 states. [2019-05-23 11:14:47,099 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:14:47,099 INFO L146 ILogger]: Finished difference Result 566 states and 626 transitions. [2019-05-23 11:14:47,099 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:14:47,099 INFO L146 ILogger]: Start accepts. Automaton has 28 states. Word has length 121 [2019-05-23 11:14:47,100 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:14:47,102 INFO L146 ILogger]: With dead ends: 566 [2019-05-23 11:14:47,102 INFO L146 ILogger]: Without dead ends: 439 [2019-05-23 11:14:47,104 INFO L146 ILogger]: 0 DeclaredPredicates, 136 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=288, Invalid=468, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:14:47,104 INFO L146 ILogger]: Start minimizeSevpa. Operand 439 states. [2019-05-23 11:14:47,114 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 439 to 403. [2019-05-23 11:14:47,115 INFO L146 ILogger]: Start removeUnreachable. Operand 403 states. [2019-05-23 11:14:47,115 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 403 states to 403 states and 447 transitions. [2019-05-23 11:14:47,116 INFO L146 ILogger]: Start accepts. Automaton has 403 states and 447 transitions. Word has length 121 [2019-05-23 11:14:47,116 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:14:47,116 INFO L146 ILogger]: Abstraction has 403 states and 447 transitions. [2019-05-23 11:14:47,116 INFO L146 ILogger]: Interpolant automaton has 28 states. [2019-05-23 11:14:47,116 INFO L146 ILogger]: Start isEmpty. Operand 403 states and 447 transitions. [2019-05-23 11:14:47,118 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 129 [2019-05-23 11:14:47,118 INFO L146 ILogger]: Found error trace [2019-05-23 11:14:47,118 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 11, 11, 11, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:14:47,118 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:14:47,118 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:14:47,119 INFO L146 ILogger]: Analyzing trace with hash 313164635, now seen corresponding path program 6 times [2019-05-23 11:14:47,119 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:14:47,119 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:14:47,119 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:47,120 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:14:47,120 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:14:47,130 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:47,433 INFO L146 ILogger]: Checked inductivity of 459 backedges. 0 proven. 452 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-05-23 11:14:47,434 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:14:47,434 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:14:47,442 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:14:47,482 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2019-05-23 11:14:47,482 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:14:47,483 INFO L146 ILogger]: Trace formula consists of 156 conjuncts, 37 conjunts are in the unsatisfiable core [2019-05-23 11:14:47,486 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:14:48,558 WARN L146 ILogger]: Spent 117.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-05-23 11:14:48,558 INFO L146 ILogger]: treesize reduction 17, result has 88.6 percent of original size [2019-05-23 11:14:48,559 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 5 case distinctions, treesize of input 68 treesize of output 154 [2019-05-23 11:14:48,575 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:14:48,973 WARN L146 ILogger]: Spent 396.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 33 [2019-05-23 11:14:48,973 INFO L146 ILogger]: treesize reduction 119, result has 39.3 percent of original size [2019-05-23 11:14:48,975 INFO L146 ILogger]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:14:48,975 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 4 variables, input treesize:74, output treesize:40 [2019-05-23 11:14:49,225 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:14:49,249 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:49,250 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 96 [2019-05-23 11:14:49,253 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:14:49,458 WARN L146 ILogger]: Spent 204.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 30 [2019-05-23 11:14:49,459 INFO L146 ILogger]: treesize reduction 87, result has 47.6 percent of original size [2019-05-23 11:14:49,460 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:14:49,460 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:55, output treesize:72 [2019-05-23 11:14:49,976 WARN L146 ILogger]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2019-05-23 11:14:50,026 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:50,026 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2019-05-23 11:14:50,027 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:14:50,052 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:14:50,052 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:14:50,053 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:5 [2019-05-23 11:14:50,265 INFO L146 ILogger]: Checked inductivity of 459 backedges. 113 proven. 71 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2019-05-23 11:14:50,284 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:14:50,284 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 25] total 39 [2019-05-23 11:14:50,284 INFO L146 ILogger]: Interpolant automaton has 39 states [2019-05-23 11:14:50,285 INFO L146 ILogger]: Constructing interpolant automaton starting with 39 interpolants. [2019-05-23 11:14:50,285 INFO L146 ILogger]: CoverageRelationStatistics Valid=251, Invalid=1231, Unknown=0, NotChecked=0, Total=1482 [2019-05-23 11:14:50,286 INFO L146 ILogger]: Start difference. First operand 403 states and 447 transitions. Second operand 39 states. [2019-05-23 11:14:57,262 WARN L146 ILogger]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2019-05-23 11:15:00,193 WARN L146 ILogger]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-05-23 11:15:08,129 WARN L146 ILogger]: Spent 1.02 s on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2019-05-23 11:15:12,994 WARN L146 ILogger]: Spent 1.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-05-23 11:15:16,460 WARN L146 ILogger]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2019-05-23 11:15:20,081 WARN L146 ILogger]: Spent 1.85 s on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-05-23 11:15:21,176 WARN L146 ILogger]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-05-23 11:15:22,759 WARN L146 ILogger]: Spent 589.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-05-23 11:15:26,612 WARN L146 ILogger]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 39