java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/array-industry-pattern/array_mul_init_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:21:28,529 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:21:28,531 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:21:28,550 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:21:28,550 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:21:28,551 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:21:28,553 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:21:28,554 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:21:28,556 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:21:28,557 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:21:28,558 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:21:28,558 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:21:28,559 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:21:28,561 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:21:28,562 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:21:28,563 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:21:28,564 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:21:28,566 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:21:28,568 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:21:28,570 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:21:28,571 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:21:28,572 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:21:28,575 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:21:28,576 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:21:28,576 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:21:28,577 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:21:28,578 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:21:28,579 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:21:28,579 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:21:28,580 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:21:28,581 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:21:28,582 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:21:28,583 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:21:28,583 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:21:28,584 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:21:28,585 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:21:28,585 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:21:28,586 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:21:28,587 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:21:28,587 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:21:28,603 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:21:28,604 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:21:28,605 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:21:28,605 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:21:28,605 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:21:28,606 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:21:28,606 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:21:28,606 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:21:28,606 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:21:28,606 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:21:28,607 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:21:28,607 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:21:28,609 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:21:28,609 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:21:28,609 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:21:28,609 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:21:28,610 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:21:28,611 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:21:28,611 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:21:28,611 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:21:28,612 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:21:28,612 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:21:28,612 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:21:28,612 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:21:28,613 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:21:28,613 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:21:28,613 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:21:28,613 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:21:28,613 INFO L146 ILogger]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2019-05-23 11:21:28,659 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:21:28,677 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:21:28,681 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:21:28,682 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:21:28,684 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:21:28,685 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-industry-pattern/array_mul_init_true-unreach-call_true-termination.i [2019-05-23 11:21:28,754 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c5eba79/69122557de9d4ea78d4f1143f6556ea9/FLAG954e4f1b0 [2019-05-23 11:21:29,208 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:21:29,209 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-industry-pattern/array_mul_init_true-unreach-call_true-termination.i [2019-05-23 11:21:29,215 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c5eba79/69122557de9d4ea78d4f1143f6556ea9/FLAG954e4f1b0 [2019-05-23 11:21:29,548 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c5eba79/69122557de9d4ea78d4f1143f6556ea9 [2019-05-23 11:21:29,559 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:21:29,560 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:21:29,562 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:21:29,562 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:21:29,566 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:21:29,567 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:21:29" (1/1) ... [2019-05-23 11:21:29,569 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a11b212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29, skipping insertion in model container [2019-05-23 11:21:29,570 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:21:29" (1/1) ... [2019-05-23 11:21:29,577 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:21:29,595 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:21:29,838 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:21:29,843 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:21:29,868 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:21:29,893 INFO L146 ILogger]: Completed translation [2019-05-23 11:21:29,894 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29 WrapperNode [2019-05-23 11:21:29,894 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:21:29,895 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:21:29,896 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:21:29,896 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:21:29,906 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29" (1/1) ... [2019-05-23 11:21:29,925 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29" (1/1) ... [2019-05-23 11:21:29,954 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:21:29,955 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:21:29,955 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:21:29,955 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:21:29,968 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29" (1/1) ... [2019-05-23 11:21:29,968 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29" (1/1) ... [2019-05-23 11:21:29,976 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29" (1/1) ... [2019-05-23 11:21:29,976 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29" (1/1) ... [2019-05-23 11:21:29,991 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29" (1/1) ... [2019-05-23 11:21:30,000 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29" (1/1) ... [2019-05-23 11:21:30,002 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29" (1/1) ... [2019-05-23 11:21:30,004 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:21:30,004 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:21:30,004 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:21:30,004 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:21:30,005 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 [2019-05-23 11:21:30,154 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:21:30,154 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:21:30,154 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:21:30,154 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:21:30,156 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:21:30,156 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:21:30,714 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:21:30,714 INFO L146 ILogger]: Removed 9 assume(true) statements. [2019-05-23 11:21:30,716 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:21:30 BoogieIcfgContainer [2019-05-23 11:21:30,716 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:21:30,717 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:21:30,717 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:21:30,720 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:21:30,720 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:21:29" (1/3) ... [2019-05-23 11:21:30,721 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94671c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:21:30, skipping insertion in model container [2019-05-23 11:21:30,722 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:29" (2/3) ... [2019-05-23 11:21:30,722 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94671c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:21:30, skipping insertion in model container [2019-05-23 11:21:30,722 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:21:30" (3/3) ... [2019-05-23 11:21:30,724 INFO L146 ILogger]: Analyzing ICFG array_mul_init_true-unreach-call_true-termination.i [2019-05-23 11:21:30,732 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:21:30,743 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:21:30,762 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:21:30,803 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:21:30,803 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:21:30,803 INFO L146 ILogger]: Hoare is true [2019-05-23 11:21:30,804 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:21:30,804 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:21:30,804 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:21:30,804 INFO L146 ILogger]: Difference is false [2019-05-23 11:21:30,804 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:21:30,805 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:21:30,821 INFO L146 ILogger]: Start isEmpty. Operand 61 states. [2019-05-23 11:21:30,828 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 24 [2019-05-23 11:21:30,829 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:30,830 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:30,832 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:30,838 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:30,838 INFO L146 ILogger]: Analyzing trace with hash -354791126, now seen corresponding path program 1 times [2019-05-23 11:21:30,839 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:30,840 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:30,882 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:30,882 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:30,882 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:30,918 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:30,967 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:30,970 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:21:30,971 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:21:30,975 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:21:30,988 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:21:30,989 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:21:30,991 INFO L146 ILogger]: Start difference. First operand 61 states. Second operand 2 states. [2019-05-23 11:21:31,011 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:31,011 INFO L146 ILogger]: Finished difference Result 107 states and 121 transitions. [2019-05-23 11:21:31,012 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:21:31,013 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 23 [2019-05-23 11:21:31,013 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:31,022 INFO L146 ILogger]: With dead ends: 107 [2019-05-23 11:21:31,023 INFO L146 ILogger]: Without dead ends: 54 [2019-05-23 11:21:31,026 INFO L146 ILogger]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:21:31,041 INFO L146 ILogger]: Start minimizeSevpa. Operand 54 states. [2019-05-23 11:21:31,057 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-05-23 11:21:31,058 INFO L146 ILogger]: Start removeUnreachable. Operand 54 states. [2019-05-23 11:21:31,060 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2019-05-23 11:21:31,061 INFO L146 ILogger]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 23 [2019-05-23 11:21:31,062 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:31,062 INFO L146 ILogger]: Abstraction has 54 states and 58 transitions. [2019-05-23 11:21:31,062 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:21:31,062 INFO L146 ILogger]: Start isEmpty. Operand 54 states and 58 transitions. [2019-05-23 11:21:31,063 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 24 [2019-05-23 11:21:31,063 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:31,064 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:31,064 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:31,064 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:31,064 INFO L146 ILogger]: Analyzing trace with hash 405827828, now seen corresponding path program 1 times [2019-05-23 11:21:31,065 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:31,065 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:31,066 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:31,066 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:31,066 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:31,079 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:31,130 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:21:31,130 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:21:31,130 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:21:31,132 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:21:31,132 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:21:31,133 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:21:31,133 INFO L146 ILogger]: Start difference. First operand 54 states and 58 transitions. Second operand 3 states. [2019-05-23 11:21:31,405 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:31,405 INFO L146 ILogger]: Finished difference Result 133 states and 144 transitions. [2019-05-23 11:21:31,406 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:21:31,406 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 23 [2019-05-23 11:21:31,406 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:31,408 INFO L146 ILogger]: With dead ends: 133 [2019-05-23 11:21:31,408 INFO L146 ILogger]: Without dead ends: 94 [2019-05-23 11:21:31,410 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:21:31,410 INFO L146 ILogger]: Start minimizeSevpa. Operand 94 states. [2019-05-23 11:21:31,417 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 94 to 56. [2019-05-23 11:21:31,418 INFO L146 ILogger]: Start removeUnreachable. Operand 56 states. [2019-05-23 11:21:31,419 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2019-05-23 11:21:31,419 INFO L146 ILogger]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 23 [2019-05-23 11:21:31,420 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:31,421 INFO L146 ILogger]: Abstraction has 56 states and 60 transitions. [2019-05-23 11:21:31,421 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:21:31,421 INFO L146 ILogger]: Start isEmpty. Operand 56 states and 60 transitions. [2019-05-23 11:21:31,422 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 37 [2019-05-23 11:21:31,422 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:31,423 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:31,423 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:31,423 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:31,424 INFO L146 ILogger]: Analyzing trace with hash 1656842529, now seen corresponding path program 1 times [2019-05-23 11:21:31,424 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:31,424 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:31,425 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:31,425 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:31,425 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:31,445 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:31,545 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:21:31,546 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:31,546 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:31,561 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:31,610 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:31,612 INFO L146 ILogger]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:21:31,618 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:31,750 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:21:31,782 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:31,783 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-05-23 11:21:31,783 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:21:31,784 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:21:31,784 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:21:31,785 INFO L146 ILogger]: Start difference. First operand 56 states and 60 transitions. Second operand 7 states. [2019-05-23 11:21:32,206 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:32,206 INFO L146 ILogger]: Finished difference Result 140 states and 150 transitions. [2019-05-23 11:21:32,208 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:21:32,208 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 36 [2019-05-23 11:21:32,208 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:32,212 INFO L146 ILogger]: With dead ends: 140 [2019-05-23 11:21:32,212 INFO L146 ILogger]: Without dead ends: 100 [2019-05-23 11:21:32,213 INFO L146 ILogger]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:21:32,214 INFO L146 ILogger]: Start minimizeSevpa. Operand 100 states. [2019-05-23 11:21:32,227 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 100 to 62. [2019-05-23 11:21:32,227 INFO L146 ILogger]: Start removeUnreachable. Operand 62 states. [2019-05-23 11:21:32,228 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2019-05-23 11:21:32,230 INFO L146 ILogger]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 36 [2019-05-23 11:21:32,230 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:32,230 INFO L146 ILogger]: Abstraction has 62 states and 66 transitions. [2019-05-23 11:21:32,231 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:21:32,231 INFO L146 ILogger]: Start isEmpty. Operand 62 states and 66 transitions. [2019-05-23 11:21:32,232 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 43 [2019-05-23 11:21:32,232 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:32,233 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:32,233 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:32,233 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:32,234 INFO L146 ILogger]: Analyzing trace with hash -2000452771, now seen corresponding path program 2 times [2019-05-23 11:21:32,235 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:32,235 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:32,236 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:32,236 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:32,236 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:32,271 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:32,394 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-05-23 11:21:32,395 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:32,396 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:21:32,412 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:21:32,455 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-05-23 11:21:32,455 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:32,456 INFO L146 ILogger]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:21:32,459 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:32,522 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 11:21:32,550 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:32,550 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-05-23 11:21:32,551 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:21:32,551 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:21:32,551 INFO L146 ILogger]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:21:32,552 INFO L146 ILogger]: Start difference. First operand 62 states and 66 transitions. Second operand 8 states. [2019-05-23 11:21:33,420 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:33,421 INFO L146 ILogger]: Finished difference Result 172 states and 184 transitions. [2019-05-23 11:21:33,421 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:21:33,421 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 42 [2019-05-23 11:21:33,421 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:33,424 INFO L146 ILogger]: With dead ends: 172 [2019-05-23 11:21:33,424 INFO L146 ILogger]: Without dead ends: 147 [2019-05-23 11:21:33,425 INFO L146 ILogger]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:21:33,426 INFO L146 ILogger]: Start minimizeSevpa. Operand 147 states. [2019-05-23 11:21:33,433 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 147 to 79. [2019-05-23 11:21:33,433 INFO L146 ILogger]: Start removeUnreachable. Operand 79 states. [2019-05-23 11:21:33,434 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2019-05-23 11:21:33,434 INFO L146 ILogger]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 42 [2019-05-23 11:21:33,435 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:33,435 INFO L146 ILogger]: Abstraction has 79 states and 84 transitions. [2019-05-23 11:21:33,435 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:21:33,435 INFO L146 ILogger]: Start isEmpty. Operand 79 states and 84 transitions. [2019-05-23 11:21:33,437 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 54 [2019-05-23 11:21:33,437 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:33,438 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:33,438 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:33,438 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:33,438 INFO L146 ILogger]: Analyzing trace with hash -18008296, now seen corresponding path program 1 times [2019-05-23 11:21:33,439 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:33,439 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:33,440 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:33,440 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:33,440 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:33,474 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:33,474 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:33,475 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:33,484 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:33,507 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:33,508 INFO L146 ILogger]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:21:33,510 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:33,623 INFO L146 ILogger]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-05-23 11:21:33,645 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:33,646 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:21:33,646 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:21:33,646 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:21:33,647 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:21:33,647 INFO L146 ILogger]: Start difference. First operand 79 states and 84 transitions. Second operand 7 states. [2019-05-23 11:21:34,201 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:34,201 INFO L146 ILogger]: Finished difference Result 173 states and 184 transitions. [2019-05-23 11:21:34,202 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:21:34,202 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 53 [2019-05-23 11:21:34,202 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:34,204 INFO L146 ILogger]: With dead ends: 173 [2019-05-23 11:21:34,204 INFO L146 ILogger]: Without dead ends: 116 [2019-05-23 11:21:34,206 INFO L146 ILogger]: 0 DeclaredPredicates, 56 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:21:34,206 INFO L146 ILogger]: Start minimizeSevpa. Operand 116 states. [2019-05-23 11:21:34,212 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 116 to 85. [2019-05-23 11:21:34,212 INFO L146 ILogger]: Start removeUnreachable. Operand 85 states. [2019-05-23 11:21:34,213 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2019-05-23 11:21:34,214 INFO L146 ILogger]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 53 [2019-05-23 11:21:34,214 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:34,214 INFO L146 ILogger]: Abstraction has 85 states and 90 transitions. [2019-05-23 11:21:34,214 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:21:34,214 INFO L146 ILogger]: Start isEmpty. Operand 85 states and 90 transitions. [2019-05-23 11:21:34,215 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 60 [2019-05-23 11:21:34,216 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:34,216 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:34,216 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:34,216 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:34,216 INFO L146 ILogger]: Analyzing trace with hash 1079204956, now seen corresponding path program 2 times [2019-05-23 11:21:34,217 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:34,217 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:34,218 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:34,218 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:34,218 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:34,233 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:34,233 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:34,233 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:34,252 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:21:34,274 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:21:34,274 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:34,275 INFO L146 ILogger]: Trace formula consists of 103 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:21:34,278 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:34,393 INFO L146 ILogger]: Checked inductivity of 30 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-05-23 11:21:34,412 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:34,412 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 11:21:34,414 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:21:34,414 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:21:34,415 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:21:34,415 INFO L146 ILogger]: Start difference. First operand 85 states and 90 transitions. Second operand 9 states. [2019-05-23 11:21:34,660 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:34,661 INFO L146 ILogger]: Finished difference Result 179 states and 190 transitions. [2019-05-23 11:21:34,661 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:21:34,661 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 59 [2019-05-23 11:21:34,662 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:34,663 INFO L146 ILogger]: With dead ends: 179 [2019-05-23 11:21:34,663 INFO L146 ILogger]: Without dead ends: 122 [2019-05-23 11:21:34,665 INFO L146 ILogger]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:21:34,665 INFO L146 ILogger]: Start minimizeSevpa. Operand 122 states. [2019-05-23 11:21:34,671 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 122 to 91. [2019-05-23 11:21:34,671 INFO L146 ILogger]: Start removeUnreachable. Operand 91 states. [2019-05-23 11:21:34,672 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 91 states to 91 states and 96 transitions. [2019-05-23 11:21:34,673 INFO L146 ILogger]: Start accepts. Automaton has 91 states and 96 transitions. Word has length 59 [2019-05-23 11:21:34,673 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:34,673 INFO L146 ILogger]: Abstraction has 91 states and 96 transitions. [2019-05-23 11:21:34,673 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:21:34,673 INFO L146 ILogger]: Start isEmpty. Operand 91 states and 96 transitions. [2019-05-23 11:21:34,674 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 66 [2019-05-23 11:21:34,675 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:34,675 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:34,675 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:34,675 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:34,676 INFO L146 ILogger]: Analyzing trace with hash -1326350688, now seen corresponding path program 3 times [2019-05-23 11:21:34,676 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:34,676 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:34,677 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:34,677 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:34,677 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:34,704 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:34,704 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:34,704 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:34,727 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:21:34,749 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:21:34,750 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:34,751 INFO L146 ILogger]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:21:34,753 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:34,826 INFO L146 ILogger]: Checked inductivity of 49 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-05-23 11:21:34,846 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:34,846 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:21:34,846 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:21:34,846 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:21:34,848 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:21:34,848 INFO L146 ILogger]: Start difference. First operand 91 states and 96 transitions. Second operand 7 states. [2019-05-23 11:21:35,012 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:35,012 INFO L146 ILogger]: Finished difference Result 171 states and 181 transitions. [2019-05-23 11:21:35,012 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:21:35,013 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 65 [2019-05-23 11:21:35,013 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:35,015 INFO L146 ILogger]: With dead ends: 171 [2019-05-23 11:21:35,015 INFO L146 ILogger]: Without dead ends: 142 [2019-05-23 11:21:35,016 INFO L146 ILogger]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:21:35,018 INFO L146 ILogger]: Start minimizeSevpa. Operand 142 states. [2019-05-23 11:21:35,024 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 142 to 104. [2019-05-23 11:21:35,024 INFO L146 ILogger]: Start removeUnreachable. Operand 104 states. [2019-05-23 11:21:35,025 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 104 states to 104 states and 110 transitions. [2019-05-23 11:21:35,025 INFO L146 ILogger]: Start accepts. Automaton has 104 states and 110 transitions. Word has length 65 [2019-05-23 11:21:35,026 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:35,026 INFO L146 ILogger]: Abstraction has 104 states and 110 transitions. [2019-05-23 11:21:35,026 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:21:35,026 INFO L146 ILogger]: Start isEmpty. Operand 104 states and 110 transitions. [2019-05-23 11:21:35,027 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 73 [2019-05-23 11:21:35,027 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:35,027 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:35,028 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:35,028 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:35,028 INFO L146 ILogger]: Analyzing trace with hash -29213391, now seen corresponding path program 4 times [2019-05-23 11:21:35,028 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:35,028 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:35,029 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:35,029 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:35,029 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:35,046 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:35,046 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:35,046 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:35,064 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:21:35,099 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:21:35,099 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:35,100 INFO L146 ILogger]: Trace formula consists of 122 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:21:35,104 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:35,310 INFO L146 ILogger]: Checked inductivity of 64 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-05-23 11:21:35,329 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:35,329 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2019-05-23 11:21:35,330 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:21:35,330 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:21:35,330 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:21:35,331 INFO L146 ILogger]: Start difference. First operand 104 states and 110 transitions. Second operand 11 states. [2019-05-23 11:21:35,554 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:35,555 INFO L146 ILogger]: Finished difference Result 211 states and 224 transitions. [2019-05-23 11:21:35,555 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:21:35,555 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 72 [2019-05-23 11:21:35,556 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:35,557 INFO L146 ILogger]: With dead ends: 211 [2019-05-23 11:21:35,557 INFO L146 ILogger]: Without dead ends: 141 [2019-05-23 11:21:35,558 INFO L146 ILogger]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:21:35,559 INFO L146 ILogger]: Start minimizeSevpa. Operand 141 states. [2019-05-23 11:21:35,563 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 141 to 110. [2019-05-23 11:21:35,563 INFO L146 ILogger]: Start removeUnreachable. Operand 110 states. [2019-05-23 11:21:35,564 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 110 states to 110 states and 116 transitions. [2019-05-23 11:21:35,564 INFO L146 ILogger]: Start accepts. Automaton has 110 states and 116 transitions. Word has length 72 [2019-05-23 11:21:35,565 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:35,565 INFO L146 ILogger]: Abstraction has 110 states and 116 transitions. [2019-05-23 11:21:35,565 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:21:35,565 INFO L146 ILogger]: Start isEmpty. Operand 110 states and 116 transitions. [2019-05-23 11:21:35,566 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 79 [2019-05-23 11:21:35,566 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:35,567 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:35,567 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:35,567 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:35,567 INFO L146 ILogger]: Analyzing trace with hash 1913973101, now seen corresponding path program 5 times [2019-05-23 11:21:35,567 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:35,568 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:35,568 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:35,569 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:35,569 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:35,586 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:35,586 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:35,586 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:35,614 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:21:35,698 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-05-23 11:21:35,698 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:35,699 INFO L146 ILogger]: Trace formula consists of 130 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:21:35,702 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:36,065 INFO L146 ILogger]: Checked inductivity of 89 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-05-23 11:21:36,084 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:36,085 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 11:21:36,085 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:21:36,085 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:21:36,085 INFO L146 ILogger]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:21:36,086 INFO L146 ILogger]: Start difference. First operand 110 states and 116 transitions. Second operand 13 states. [2019-05-23 11:21:36,439 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:36,439 INFO L146 ILogger]: Finished difference Result 217 states and 230 transitions. [2019-05-23 11:21:36,440 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:21:36,440 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 78 [2019-05-23 11:21:36,440 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:36,441 INFO L146 ILogger]: With dead ends: 217 [2019-05-23 11:21:36,441 INFO L146 ILogger]: Without dead ends: 147 [2019-05-23 11:21:36,442 INFO L146 ILogger]: 0 DeclaredPredicates, 87 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=328, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:21:36,443 INFO L146 ILogger]: Start minimizeSevpa. Operand 147 states. [2019-05-23 11:21:36,447 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 147 to 116. [2019-05-23 11:21:36,447 INFO L146 ILogger]: Start removeUnreachable. Operand 116 states. [2019-05-23 11:21:36,448 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 116 states to 116 states and 122 transitions. [2019-05-23 11:21:36,448 INFO L146 ILogger]: Start accepts. Automaton has 116 states and 122 transitions. Word has length 78 [2019-05-23 11:21:36,448 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:36,448 INFO L146 ILogger]: Abstraction has 116 states and 122 transitions. [2019-05-23 11:21:36,449 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:21:36,449 INFO L146 ILogger]: Start isEmpty. Operand 116 states and 122 transitions. [2019-05-23 11:21:36,450 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 85 [2019-05-23 11:21:36,450 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:36,450 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:36,451 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:36,451 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:36,451 INFO L146 ILogger]: Analyzing trace with hash 1445755049, now seen corresponding path program 6 times [2019-05-23 11:21:36,451 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:36,451 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:36,452 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:36,452 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:36,452 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:36,468 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:36,469 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:36,469 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:36,484 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:21:36,585 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-05-23 11:21:36,585 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:36,586 INFO L146 ILogger]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:21:36,589 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:36,649 INFO L146 ILogger]: Checked inductivity of 120 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-05-23 11:21:36,673 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:36,673 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 11:21:36,674 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:21:36,674 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:21:36,674 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:21:36,674 INFO L146 ILogger]: Start difference. First operand 116 states and 122 transitions. Second operand 9 states. [2019-05-23 11:21:36,869 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:36,869 INFO L146 ILogger]: Finished difference Result 196 states and 207 transitions. [2019-05-23 11:21:36,869 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:21:36,870 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 84 [2019-05-23 11:21:36,870 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:36,872 INFO L146 ILogger]: With dead ends: 196 [2019-05-23 11:21:36,872 INFO L146 ILogger]: Without dead ends: 167 [2019-05-23 11:21:36,873 INFO L146 ILogger]: 0 DeclaredPredicates, 89 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:21:36,873 INFO L146 ILogger]: Start minimizeSevpa. Operand 167 states. [2019-05-23 11:21:36,878 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 167 to 129. [2019-05-23 11:21:36,878 INFO L146 ILogger]: Start removeUnreachable. Operand 129 states. [2019-05-23 11:21:36,879 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 129 states to 129 states and 136 transitions. [2019-05-23 11:21:36,879 INFO L146 ILogger]: Start accepts. Automaton has 129 states and 136 transitions. Word has length 84 [2019-05-23 11:21:36,880 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:36,880 INFO L146 ILogger]: Abstraction has 129 states and 136 transitions. [2019-05-23 11:21:36,880 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:21:36,880 INFO L146 ILogger]: Start isEmpty. Operand 129 states and 136 transitions. [2019-05-23 11:21:36,881 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 92 [2019-05-23 11:21:36,881 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:36,882 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:36,882 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:36,882 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:36,882 INFO L146 ILogger]: Analyzing trace with hash 1887737608, now seen corresponding path program 7 times [2019-05-23 11:21:36,882 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:36,883 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:36,883 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:36,884 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:36,884 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:36,900 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:36,901 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:36,901 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:36,914 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:36,940 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:36,941 INFO L146 ILogger]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:21:36,943 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:37,155 INFO L146 ILogger]: Checked inductivity of 142 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-05-23 11:21:37,174 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:37,174 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2019-05-23 11:21:37,175 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:21:37,175 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:21:37,175 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:21:37,176 INFO L146 ILogger]: Start difference. First operand 129 states and 136 transitions. Second operand 15 states. [2019-05-23 11:21:37,673 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:37,673 INFO L146 ILogger]: Finished difference Result 249 states and 264 transitions. [2019-05-23 11:21:37,674 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:21:37,674 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 91 [2019-05-23 11:21:37,674 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:37,675 INFO L146 ILogger]: With dead ends: 249 [2019-05-23 11:21:37,676 INFO L146 ILogger]: Without dead ends: 166 [2019-05-23 11:21:37,677 INFO L146 ILogger]: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=243, Invalid=459, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:21:37,678 INFO L146 ILogger]: Start minimizeSevpa. Operand 166 states. [2019-05-23 11:21:37,681 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 166 to 135. [2019-05-23 11:21:37,681 INFO L146 ILogger]: Start removeUnreachable. Operand 135 states. [2019-05-23 11:21:37,682 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 135 states to 135 states and 142 transitions. [2019-05-23 11:21:37,682 INFO L146 ILogger]: Start accepts. Automaton has 135 states and 142 transitions. Word has length 91 [2019-05-23 11:21:37,682 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:37,683 INFO L146 ILogger]: Abstraction has 135 states and 142 transitions. [2019-05-23 11:21:37,683 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:21:37,683 INFO L146 ILogger]: Start isEmpty. Operand 135 states and 142 transitions. [2019-05-23 11:21:37,684 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 98 [2019-05-23 11:21:37,684 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:37,685 INFO L146 ILogger]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:37,685 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:37,685 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:37,685 INFO L146 ILogger]: Analyzing trace with hash -43472564, now seen corresponding path program 8 times [2019-05-23 11:21:37,685 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:37,686 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:37,686 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:37,687 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:37,687 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:37,715 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:37,716 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:37,716 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:37,730 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:21:37,758 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:21:37,758 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:37,759 INFO L146 ILogger]: Trace formula consists of 157 conjuncts, 16 conjunts are in the unsatisfiable core [2019-05-23 11:21:37,761 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:38,031 INFO L146 ILogger]: Checked inductivity of 179 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-05-23 11:21:38,050 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:38,051 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2019-05-23 11:21:38,051 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 11:21:38,051 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 11:21:38,052 INFO L146 ILogger]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:21:38,052 INFO L146 ILogger]: Start difference. First operand 135 states and 142 transitions. Second operand 17 states. [2019-05-23 11:21:38,453 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:38,453 INFO L146 ILogger]: Finished difference Result 255 states and 270 transitions. [2019-05-23 11:21:38,454 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-05-23 11:21:38,454 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 97 [2019-05-23 11:21:38,454 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:38,456 INFO L146 ILogger]: With dead ends: 255 [2019-05-23 11:21:38,458 INFO L146 ILogger]: Without dead ends: 172 [2019-05-23 11:21:38,459 INFO L146 ILogger]: 0 DeclaredPredicates, 110 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=612, Unknown=0, NotChecked=0, Total=930 [2019-05-23 11:21:38,459 INFO L146 ILogger]: Start minimizeSevpa. Operand 172 states. [2019-05-23 11:21:38,462 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 172 to 141. [2019-05-23 11:21:38,463 INFO L146 ILogger]: Start removeUnreachable. Operand 141 states. [2019-05-23 11:21:38,463 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 141 states to 141 states and 148 transitions. [2019-05-23 11:21:38,464 INFO L146 ILogger]: Start accepts. Automaton has 141 states and 148 transitions. Word has length 97 [2019-05-23 11:21:38,464 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:38,464 INFO L146 ILogger]: Abstraction has 141 states and 148 transitions. [2019-05-23 11:21:38,464 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 11:21:38,464 INFO L146 ILogger]: Start isEmpty. Operand 141 states and 148 transitions. [2019-05-23 11:21:38,465 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 104 [2019-05-23 11:21:38,466 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:38,466 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:38,466 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:38,466 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:38,466 INFO L146 ILogger]: Analyzing trace with hash -1935738736, now seen corresponding path program 9 times [2019-05-23 11:21:38,467 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:38,467 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:38,467 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:38,468 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:38,468 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:38,482 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:38,482 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:38,483 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:38,505 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:21:38,540 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-05-23 11:21:38,540 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:38,541 INFO L146 ILogger]: Trace formula consists of 133 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:21:38,542 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:38,654 INFO L146 ILogger]: Checked inductivity of 222 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-05-23 11:21:38,672 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:38,673 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2019-05-23 11:21:38,673 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:21:38,673 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:21:38,674 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:21:38,674 INFO L146 ILogger]: Start difference. First operand 141 states and 148 transitions. Second operand 11 states. [2019-05-23 11:21:38,962 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:38,963 INFO L146 ILogger]: Finished difference Result 221 states and 233 transitions. [2019-05-23 11:21:38,963 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:21:38,963 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 103 [2019-05-23 11:21:38,964 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:38,965 INFO L146 ILogger]: With dead ends: 221 [2019-05-23 11:21:38,965 INFO L146 ILogger]: Without dead ends: 192 [2019-05-23 11:21:38,966 INFO L146 ILogger]: 0 DeclaredPredicates, 110 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:21:38,966 INFO L146 ILogger]: Start minimizeSevpa. Operand 192 states. [2019-05-23 11:21:38,970 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 192 to 154. [2019-05-23 11:21:38,970 INFO L146 ILogger]: Start removeUnreachable. Operand 154 states. [2019-05-23 11:21:38,971 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 154 states to 154 states and 162 transitions. [2019-05-23 11:21:38,971 INFO L146 ILogger]: Start accepts. Automaton has 154 states and 162 transitions. Word has length 103 [2019-05-23 11:21:38,971 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:38,971 INFO L146 ILogger]: Abstraction has 154 states and 162 transitions. [2019-05-23 11:21:38,971 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:21:38,972 INFO L146 ILogger]: Start isEmpty. Operand 154 states and 162 transitions. [2019-05-23 11:21:38,972 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 111 [2019-05-23 11:21:38,973 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:38,973 INFO L146 ILogger]: trace histogram [8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:38,973 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:38,973 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:38,973 INFO L146 ILogger]: Analyzing trace with hash -414927551, now seen corresponding path program 10 times [2019-05-23 11:21:38,974 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:38,974 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:38,974 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:38,975 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:38,975 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:38,988 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:38,989 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:38,989 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:39,006 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:21:39,090 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:21:39,090 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:39,092 INFO L146 ILogger]: Trace formula consists of 176 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:21:39,094 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:39,234 INFO L146 ILogger]: Checked inductivity of 251 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-05-23 11:21:39,254 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:39,254 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2019-05-23 11:21:39,255 INFO L146 ILogger]: Interpolant automaton has 19 states [2019-05-23 11:21:39,255 INFO L146 ILogger]: Constructing interpolant automaton starting with 19 interpolants. [2019-05-23 11:21:39,255 INFO L146 ILogger]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:21:39,255 INFO L146 ILogger]: Start difference. First operand 154 states and 162 transitions. Second operand 19 states. [2019-05-23 11:21:39,770 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:39,771 INFO L146 ILogger]: Finished difference Result 287 states and 304 transitions. [2019-05-23 11:21:39,771 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-05-23 11:21:39,771 INFO L146 ILogger]: Start accepts. Automaton has 19 states. Word has length 110 [2019-05-23 11:21:39,771 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:39,772 INFO L146 ILogger]: With dead ends: 287 [2019-05-23 11:21:39,772 INFO L146 ILogger]: Without dead ends: 191 [2019-05-23 11:21:39,773 INFO L146 ILogger]: 0 DeclaredPredicates, 125 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=403, Invalid=787, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 11:21:39,774 INFO L146 ILogger]: Start minimizeSevpa. Operand 191 states. [2019-05-23 11:21:39,777 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 191 to 160. [2019-05-23 11:21:39,777 INFO L146 ILogger]: Start removeUnreachable. Operand 160 states. [2019-05-23 11:21:39,778 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 160 states to 160 states and 168 transitions. [2019-05-23 11:21:39,778 INFO L146 ILogger]: Start accepts. Automaton has 160 states and 168 transitions. Word has length 110 [2019-05-23 11:21:39,779 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:39,779 INFO L146 ILogger]: Abstraction has 160 states and 168 transitions. [2019-05-23 11:21:39,779 INFO L146 ILogger]: Interpolant automaton has 19 states. [2019-05-23 11:21:39,779 INFO L146 ILogger]: Start isEmpty. Operand 160 states and 168 transitions. [2019-05-23 11:21:39,780 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 117 [2019-05-23 11:21:39,780 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:39,780 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:39,781 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:39,781 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:39,781 INFO L146 ILogger]: Analyzing trace with hash -1343204227, now seen corresponding path program 11 times [2019-05-23 11:21:39,781 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:39,781 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:39,782 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:39,782 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:39,783 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:39,796 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:39,796 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:39,796 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:39,813 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:21:39,962 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2019-05-23 11:21:39,963 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:39,965 INFO L146 ILogger]: Trace formula consists of 184 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:21:39,966 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:40,053 INFO L146 ILogger]: Checked inductivity of 300 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2019-05-23 11:21:40,082 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:40,082 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 11:21:40,083 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:21:40,083 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:21:40,083 INFO L146 ILogger]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:21:40,083 INFO L146 ILogger]: Start difference. First operand 160 states and 168 transitions. Second operand 13 states. [2019-05-23 11:21:40,369 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:40,369 INFO L146 ILogger]: Finished difference Result 240 states and 253 transitions. [2019-05-23 11:21:40,370 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:21:40,370 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 116 [2019-05-23 11:21:40,370 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:40,371 INFO L146 ILogger]: With dead ends: 240 [2019-05-23 11:21:40,372 INFO L146 ILogger]: Without dead ends: 211 [2019-05-23 11:21:40,373 INFO L146 ILogger]: 0 DeclaredPredicates, 125 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=178, Invalid=328, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:21:40,373 INFO L146 ILogger]: Start minimizeSevpa. Operand 211 states. [2019-05-23 11:21:40,377 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 211 to 173. [2019-05-23 11:21:40,377 INFO L146 ILogger]: Start removeUnreachable. Operand 173 states. [2019-05-23 11:21:40,378 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 173 states to 173 states and 182 transitions. [2019-05-23 11:21:40,378 INFO L146 ILogger]: Start accepts. Automaton has 173 states and 182 transitions. Word has length 116 [2019-05-23 11:21:40,378 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:40,378 INFO L146 ILogger]: Abstraction has 173 states and 182 transitions. [2019-05-23 11:21:40,378 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:21:40,379 INFO L146 ILogger]: Start isEmpty. Operand 173 states and 182 transitions. [2019-05-23 11:21:40,379 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 124 [2019-05-23 11:21:40,380 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:40,380 INFO L146 ILogger]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:40,380 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:40,380 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:40,380 INFO L146 ILogger]: Analyzing trace with hash -851606348, now seen corresponding path program 12 times [2019-05-23 11:21:40,381 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:40,381 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:40,381 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:40,382 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:40,382 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:40,394 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:40,394 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:40,395 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:40,411 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:21:40,584 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2019-05-23 11:21:40,584 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:40,587 INFO L146 ILogger]: Trace formula consists of 195 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 11:21:40,589 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:40,846 INFO L146 ILogger]: Checked inductivity of 336 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2019-05-23 11:21:40,865 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:40,866 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2019-05-23 11:21:40,866 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:21:40,866 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:21:40,867 INFO L146 ILogger]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:21:40,867 INFO L146 ILogger]: Start difference. First operand 173 states and 182 transitions. Second operand 21 states. [2019-05-23 11:21:41,336 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:41,337 INFO L146 ILogger]: Finished difference Result 319 states and 338 transitions. [2019-05-23 11:21:41,337 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-05-23 11:21:41,337 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 123 [2019-05-23 11:21:41,338 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:41,339 INFO L146 ILogger]: With dead ends: 319 [2019-05-23 11:21:41,339 INFO L146 ILogger]: Without dead ends: 210 [2019-05-23 11:21:41,341 INFO L146 ILogger]: 0 DeclaredPredicates, 140 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=498, Invalid=984, Unknown=0, NotChecked=0, Total=1482 [2019-05-23 11:21:41,342 INFO L146 ILogger]: Start minimizeSevpa. Operand 210 states. [2019-05-23 11:21:41,344 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 210 to 179. [2019-05-23 11:21:41,345 INFO L146 ILogger]: Start removeUnreachable. Operand 179 states. [2019-05-23 11:21:41,345 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 179 states to 179 states and 188 transitions. [2019-05-23 11:21:41,345 INFO L146 ILogger]: Start accepts. Automaton has 179 states and 188 transitions. Word has length 123 [2019-05-23 11:21:41,346 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:41,346 INFO L146 ILogger]: Abstraction has 179 states and 188 transitions. [2019-05-23 11:21:41,346 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 11:21:41,346 INFO L146 ILogger]: Start isEmpty. Operand 179 states and 188 transitions. [2019-05-23 11:21:41,347 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 130 [2019-05-23 11:21:41,347 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:41,347 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:41,348 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:41,348 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:41,348 INFO L146 ILogger]: Analyzing trace with hash 1655146232, now seen corresponding path program 13 times [2019-05-23 11:21:41,348 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:41,348 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:41,349 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:41,349 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:41,349 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:41,362 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:41,362 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:41,362 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:41,384 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:41,416 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:41,417 INFO L146 ILogger]: Trace formula consists of 203 conjuncts, 22 conjunts are in the unsatisfiable core [2019-05-23 11:21:41,419 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:41,655 INFO L146 ILogger]: Checked inductivity of 391 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2019-05-23 11:21:41,673 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:41,674 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2019-05-23 11:21:41,674 INFO L146 ILogger]: Interpolant automaton has 23 states [2019-05-23 11:21:41,675 INFO L146 ILogger]: Constructing interpolant automaton starting with 23 interpolants. [2019-05-23 11:21:41,675 INFO L146 ILogger]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:21:41,675 INFO L146 ILogger]: Start difference. First operand 179 states and 188 transitions. Second operand 23 states. [2019-05-23 11:21:42,494 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:42,495 INFO L146 ILogger]: Finished difference Result 325 states and 344 transitions. [2019-05-23 11:21:42,495 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-05-23 11:21:42,495 INFO L146 ILogger]: Start accepts. Automaton has 23 states. Word has length 129 [2019-05-23 11:21:42,496 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:42,497 INFO L146 ILogger]: With dead ends: 325 [2019-05-23 11:21:42,498 INFO L146 ILogger]: Without dead ends: 216 [2019-05-23 11:21:42,499 INFO L146 ILogger]: 0 DeclaredPredicates, 148 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=603, Invalid=1203, Unknown=0, NotChecked=0, Total=1806 [2019-05-23 11:21:42,500 INFO L146 ILogger]: Start minimizeSevpa. Operand 216 states. [2019-05-23 11:21:42,504 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 216 to 185. [2019-05-23 11:21:42,504 INFO L146 ILogger]: Start removeUnreachable. Operand 185 states. [2019-05-23 11:21:42,505 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 185 states to 185 states and 194 transitions. [2019-05-23 11:21:42,505 INFO L146 ILogger]: Start accepts. Automaton has 185 states and 194 transitions. Word has length 129 [2019-05-23 11:21:42,505 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:42,505 INFO L146 ILogger]: Abstraction has 185 states and 194 transitions. [2019-05-23 11:21:42,505 INFO L146 ILogger]: Interpolant automaton has 23 states. [2019-05-23 11:21:42,505 INFO L146 ILogger]: Start isEmpty. Operand 185 states and 194 transitions. [2019-05-23 11:21:42,506 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 136 [2019-05-23 11:21:42,506 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:42,506 INFO L146 ILogger]: trace histogram [11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:42,507 INFO L146 ILogger]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:42,507 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:42,507 INFO L146 ILogger]: Analyzing trace with hash -1708145092, now seen corresponding path program 14 times [2019-05-23 11:21:42,507 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:42,507 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:42,508 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:42,508 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:42,508 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:42,538 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:42,538 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:42,538 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:42,558 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:21:42,596 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:21:42,597 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:42,598 INFO L146 ILogger]: Trace formula consists of 211 conjuncts, 24 conjunts are in the unsatisfiable core [2019-05-23 11:21:42,600 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:43,686 INFO L146 ILogger]: Checked inductivity of 452 backedges. 0 proven. 341 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2019-05-23 11:21:43,705 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:43,705 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2019-05-23 11:21:43,705 INFO L146 ILogger]: Interpolant automaton has 25 states [2019-05-23 11:21:43,706 INFO L146 ILogger]: Constructing interpolant automaton starting with 25 interpolants. [2019-05-23 11:21:43,706 INFO L146 ILogger]: CoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2019-05-23 11:21:43,706 INFO L146 ILogger]: Start difference. First operand 185 states and 194 transitions. Second operand 25 states. [2019-05-23 11:21:44,226 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:44,226 INFO L146 ILogger]: Finished difference Result 331 states and 350 transitions. [2019-05-23 11:21:44,227 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-05-23 11:21:44,227 INFO L146 ILogger]: Start accepts. Automaton has 25 states. Word has length 135 [2019-05-23 11:21:44,228 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:44,229 INFO L146 ILogger]: With dead ends: 331 [2019-05-23 11:21:44,229 INFO L146 ILogger]: Without dead ends: 222 [2019-05-23 11:21:44,231 INFO L146 ILogger]: 0 DeclaredPredicates, 156 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=718, Invalid=1444, Unknown=0, NotChecked=0, Total=2162 [2019-05-23 11:21:44,231 INFO L146 ILogger]: Start minimizeSevpa. Operand 222 states. [2019-05-23 11:21:44,235 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 222 to 191. [2019-05-23 11:21:44,235 INFO L146 ILogger]: Start removeUnreachable. Operand 191 states. [2019-05-23 11:21:44,236 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 191 states to 191 states and 200 transitions. [2019-05-23 11:21:44,237 INFO L146 ILogger]: Start accepts. Automaton has 191 states and 200 transitions. Word has length 135 [2019-05-23 11:21:44,237 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:44,237 INFO L146 ILogger]: Abstraction has 191 states and 200 transitions. [2019-05-23 11:21:44,237 INFO L146 ILogger]: Interpolant automaton has 25 states. [2019-05-23 11:21:44,237 INFO L146 ILogger]: Start isEmpty. Operand 191 states and 200 transitions. [2019-05-23 11:21:44,238 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 142 [2019-05-23 11:21:44,238 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:44,238 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:44,239 INFO L146 ILogger]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:44,239 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:44,239 INFO L146 ILogger]: Analyzing trace with hash -1049329024, now seen corresponding path program 15 times [2019-05-23 11:21:44,239 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:44,239 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:44,240 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:44,240 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:44,240 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:44,253 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:44,253 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:44,253 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:44,273 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:21:44,361 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2019-05-23 11:21:44,361 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:44,362 INFO L146 ILogger]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:21:44,364 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:44,527 INFO L146 ILogger]: Checked inductivity of 519 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2019-05-23 11:21:44,547 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:44,547 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2019-05-23 11:21:44,547 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:21:44,547 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:21:44,548 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:21:44,548 INFO L146 ILogger]: Start difference. First operand 191 states and 200 transitions. Second operand 15 states. [2019-05-23 11:21:45,002 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:45,002 INFO L146 ILogger]: Finished difference Result 271 states and 285 transitions. [2019-05-23 11:21:45,003 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:21:45,003 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 141 [2019-05-23 11:21:45,003 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:45,004 INFO L146 ILogger]: With dead ends: 271 [2019-05-23 11:21:45,005 INFO L146 ILogger]: Without dead ends: 242 [2019-05-23 11:21:45,005 INFO L146 ILogger]: 0 DeclaredPredicates, 152 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=459, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:21:45,006 INFO L146 ILogger]: Start minimizeSevpa. Operand 242 states. [2019-05-23 11:21:45,010 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 242 to 204. [2019-05-23 11:21:45,010 INFO L146 ILogger]: Start removeUnreachable. Operand 204 states. [2019-05-23 11:21:45,011 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 204 states to 204 states and 214 transitions. [2019-05-23 11:21:45,011 INFO L146 ILogger]: Start accepts. Automaton has 204 states and 214 transitions. Word has length 141 [2019-05-23 11:21:45,012 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:45,012 INFO L146 ILogger]: Abstraction has 204 states and 214 transitions. [2019-05-23 11:21:45,012 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:21:45,012 INFO L146 ILogger]: Start isEmpty. Operand 204 states and 214 transitions. [2019-05-23 11:21:45,013 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 149 [2019-05-23 11:21:45,013 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:45,013 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:45,014 INFO L146 ILogger]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:45,014 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:45,014 INFO L146 ILogger]: Analyzing trace with hash 1827478865, now seen corresponding path program 16 times [2019-05-23 11:21:45,014 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:45,014 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:45,015 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:45,015 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:45,016 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:45,030 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:45,031 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:45,031 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:45,050 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:21:45,336 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:21:45,336 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:45,338 INFO L146 ILogger]: Trace formula consists of 230 conjuncts, 26 conjunts are in the unsatisfiable core [2019-05-23 11:21:45,340 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:45,670 INFO L146 ILogger]: Checked inductivity of 562 backedges. 0 proven. 408 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2019-05-23 11:21:45,690 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:45,690 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2019-05-23 11:21:45,690 INFO L146 ILogger]: Interpolant automaton has 27 states [2019-05-23 11:21:45,691 INFO L146 ILogger]: Constructing interpolant automaton starting with 27 interpolants. [2019-05-23 11:21:45,691 INFO L146 ILogger]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:21:45,691 INFO L146 ILogger]: Start difference. First operand 204 states and 214 transitions. Second operand 27 states. [2019-05-23 11:21:46,473 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:46,473 INFO L146 ILogger]: Finished difference Result 363 states and 384 transitions. [2019-05-23 11:21:46,473 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-05-23 11:21:46,474 INFO L146 ILogger]: Start accepts. Automaton has 27 states. Word has length 148 [2019-05-23 11:21:46,474 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:46,475 INFO L146 ILogger]: With dead ends: 363 [2019-05-23 11:21:46,476 INFO L146 ILogger]: Without dead ends: 241 [2019-05-23 11:21:46,477 INFO L146 ILogger]: 0 DeclaredPredicates, 171 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=843, Invalid=1707, Unknown=0, NotChecked=0, Total=2550 [2019-05-23 11:21:46,478 INFO L146 ILogger]: Start minimizeSevpa. Operand 241 states. [2019-05-23 11:21:46,481 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 241 to 210. [2019-05-23 11:21:46,481 INFO L146 ILogger]: Start removeUnreachable. Operand 210 states. [2019-05-23 11:21:46,482 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 210 states to 210 states and 220 transitions. [2019-05-23 11:21:46,482 INFO L146 ILogger]: Start accepts. Automaton has 210 states and 220 transitions. Word has length 148 [2019-05-23 11:21:46,482 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:46,482 INFO L146 ILogger]: Abstraction has 210 states and 220 transitions. [2019-05-23 11:21:46,482 INFO L146 ILogger]: Interpolant automaton has 27 states. [2019-05-23 11:21:46,483 INFO L146 ILogger]: Start isEmpty. Operand 210 states and 220 transitions. [2019-05-23 11:21:46,483 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 155 [2019-05-23 11:21:46,483 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:46,483 INFO L146 ILogger]: trace histogram [13, 13, 13, 13, 13, 13, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:46,484 INFO L146 ILogger]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:46,484 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:46,484 INFO L146 ILogger]: Analyzing trace with hash 321089421, now seen corresponding path program 17 times [2019-05-23 11:21:46,484 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:46,484 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:46,485 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:46,485 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:46,485 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:46,499 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:46,499 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:46,499 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:46,512 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:21:56,301 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2019-05-23 11:21:56,301 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:56,309 INFO L146 ILogger]: Trace formula consists of 238 conjuncts, 16 conjunts are in the unsatisfiable core [2019-05-23 11:21:56,311 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:56,472 INFO L146 ILogger]: Checked inductivity of 635 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2019-05-23 11:21:56,494 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:56,494 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2019-05-23 11:21:56,494 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 11:21:56,494 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 11:21:56,495 INFO L146 ILogger]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:21:56,495 INFO L146 ILogger]: Start difference. First operand 210 states and 220 transitions. Second operand 17 states. [2019-05-23 11:21:56,780 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:56,780 INFO L146 ILogger]: Finished difference Result 290 states and 305 transitions. [2019-05-23 11:21:56,781 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-05-23 11:21:56,781 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 154 [2019-05-23 11:21:56,781 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:56,783 INFO L146 ILogger]: With dead ends: 290 [2019-05-23 11:21:56,783 INFO L146 ILogger]: Without dead ends: 261 [2019-05-23 11:21:56,784 INFO L146 ILogger]: 0 DeclaredPredicates, 167 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=318, Invalid=612, Unknown=0, NotChecked=0, Total=930 [2019-05-23 11:21:56,785 INFO L146 ILogger]: Start minimizeSevpa. Operand 261 states. [2019-05-23 11:21:56,788 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 261 to 223. [2019-05-23 11:21:56,788 INFO L146 ILogger]: Start removeUnreachable. Operand 223 states. [2019-05-23 11:21:56,789 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 223 states to 223 states and 234 transitions. [2019-05-23 11:21:56,789 INFO L146 ILogger]: Start accepts. Automaton has 223 states and 234 transitions. Word has length 154 [2019-05-23 11:21:56,789 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:56,789 INFO L146 ILogger]: Abstraction has 223 states and 234 transitions. [2019-05-23 11:21:56,789 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 11:21:56,790 INFO L146 ILogger]: Start isEmpty. Operand 223 states and 234 transitions. [2019-05-23 11:21:56,790 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 162 [2019-05-23 11:21:56,790 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:56,791 INFO L146 ILogger]: trace histogram [13, 13, 13, 13, 13, 13, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:56,791 INFO L146 ILogger]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:56,791 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:56,791 INFO L146 ILogger]: Analyzing trace with hash 947443620, now seen corresponding path program 18 times [2019-05-23 11:21:56,791 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:56,792 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:56,792 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:56,792 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:56,792 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:56,805 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:56,805 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:56,805 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:56,822 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:21:57,608 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2019-05-23 11:21:57,608 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:57,610 INFO L146 ILogger]: Trace formula consists of 249 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:21:57,612 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:58,435 INFO L146 ILogger]: Checked inductivity of 685 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2019-05-23 11:21:58,456 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:58,457 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2019-05-23 11:21:58,457 INFO L146 ILogger]: Interpolant automaton has 19 states [2019-05-23 11:21:58,457 INFO L146 ILogger]: Constructing interpolant automaton starting with 19 interpolants. [2019-05-23 11:21:58,458 INFO L146 ILogger]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:21:58,461 INFO L146 ILogger]: Start difference. First operand 223 states and 234 transitions. Second operand 19 states. [2019-05-23 11:21:58,794 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:58,795 INFO L146 ILogger]: Finished difference Result 303 states and 319 transitions. [2019-05-23 11:21:58,796 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-05-23 11:21:58,796 INFO L146 ILogger]: Start accepts. Automaton has 19 states. Word has length 161 [2019-05-23 11:21:58,797 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:58,799 INFO L146 ILogger]: With dead ends: 303 [2019-05-23 11:21:58,799 INFO L146 ILogger]: Without dead ends: 274 [2019-05-23 11:21:58,800 INFO L146 ILogger]: 0 DeclaredPredicates, 176 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=403, Invalid=787, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 11:21:58,801 INFO L146 ILogger]: Start minimizeSevpa. Operand 274 states. [2019-05-23 11:21:58,805 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 274 to 236. [2019-05-23 11:21:58,805 INFO L146 ILogger]: Start removeUnreachable. Operand 236 states. [2019-05-23 11:21:58,806 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 236 states to 236 states and 248 transitions. [2019-05-23 11:21:58,806 INFO L146 ILogger]: Start accepts. Automaton has 236 states and 248 transitions. Word has length 161 [2019-05-23 11:21:58,807 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:58,807 INFO L146 ILogger]: Abstraction has 236 states and 248 transitions. [2019-05-23 11:21:58,807 INFO L146 ILogger]: Interpolant automaton has 19 states. [2019-05-23 11:21:58,807 INFO L146 ILogger]: Start isEmpty. Operand 236 states and 248 transitions. [2019-05-23 11:21:58,808 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 169 [2019-05-23 11:21:58,808 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:58,808 INFO L146 ILogger]: trace histogram [13, 13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:21:58,809 INFO L146 ILogger]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:58,809 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:58,809 INFO L146 ILogger]: Analyzing trace with hash 687437741, now seen corresponding path program 19 times [2019-05-23 11:21:58,809 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:58,810 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:58,810 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:58,810 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:21:58,811 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:58,825 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:21:58,825 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:21:58,825 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:21:58,853 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:58,895 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:58,896 INFO L146 ILogger]: Trace formula consists of 260 conjuncts, 28 conjunts are in the unsatisfiable core [2019-05-23 11:21:58,899 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:59,881 INFO L146 ILogger]: Checked inductivity of 742 backedges. 0 proven. 481 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2019-05-23 11:21:59,900 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:59,900 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2019-05-23 11:21:59,900 INFO L146 ILogger]: Interpolant automaton has 29 states [2019-05-23 11:21:59,901 INFO L146 ILogger]: Constructing interpolant automaton starting with 29 interpolants. [2019-05-23 11:21:59,901 INFO L146 ILogger]: CoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2019-05-23 11:21:59,901 INFO L146 ILogger]: Start difference. First operand 236 states and 248 transitions. Second operand 29 states. [2019-05-23 11:22:00,567 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:00,567 INFO L146 ILogger]: Finished difference Result 421 states and 446 transitions. [2019-05-23 11:22:00,567 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-05-23 11:22:00,568 INFO L146 ILogger]: Start accepts. Automaton has 29 states. Word has length 168 [2019-05-23 11:22:00,568 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:00,570 INFO L146 ILogger]: With dead ends: 421 [2019-05-23 11:22:00,570 INFO L146 ILogger]: Without dead ends: 273 [2019-05-23 11:22:00,572 INFO L146 ILogger]: 0 DeclaredPredicates, 193 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=978, Invalid=1992, Unknown=0, NotChecked=0, Total=2970 [2019-05-23 11:22:00,572 INFO L146 ILogger]: Start minimizeSevpa. Operand 273 states. [2019-05-23 11:22:00,575 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 273 to 242. [2019-05-23 11:22:00,576 INFO L146 ILogger]: Start removeUnreachable. Operand 242 states. [2019-05-23 11:22:00,576 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 242 states to 242 states and 254 transitions. [2019-05-23 11:22:00,576 INFO L146 ILogger]: Start accepts. Automaton has 242 states and 254 transitions. Word has length 168 [2019-05-23 11:22:00,577 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:00,577 INFO L146 ILogger]: Abstraction has 242 states and 254 transitions. [2019-05-23 11:22:00,577 INFO L146 ILogger]: Interpolant automaton has 29 states. [2019-05-23 11:22:00,577 INFO L146 ILogger]: Start isEmpty. Operand 242 states and 254 transitions. [2019-05-23 11:22:00,578 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 175 [2019-05-23 11:22:00,578 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:00,578 INFO L146 ILogger]: trace histogram [14, 14, 14, 14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 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 11:22:00,578 INFO L146 ILogger]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:00,579 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:00,579 INFO L146 ILogger]: Analyzing trace with hash -1968417815, now seen corresponding path program 20 times [2019-05-23 11:22:00,579 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:00,579 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:00,580 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:00,580 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:00,580 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:00,594 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:00,595 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:00,595 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:00,609 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:00,664 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:00,665 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:00,666 INFO L146 ILogger]: Trace formula consists of 268 conjuncts, 30 conjunts are in the unsatisfiable core [2019-05-23 11:22:00,669 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:01,241 INFO L146 ILogger]: Checked inductivity of 821 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2019-05-23 11:22:01,260 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:01,260 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2019-05-23 11:22:01,261 INFO L146 ILogger]: Interpolant automaton has 31 states [2019-05-23 11:22:01,261 INFO L146 ILogger]: Constructing interpolant automaton starting with 31 interpolants. [2019-05-23 11:22:01,261 INFO L146 ILogger]: CoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2019-05-23 11:22:01,262 INFO L146 ILogger]: Start difference. First operand 242 states and 254 transitions. Second operand 31 states. [2019-05-23 11:22:01,905 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:01,905 INFO L146 ILogger]: Finished difference Result 427 states and 452 transitions. [2019-05-23 11:22:01,906 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-05-23 11:22:01,906 INFO L146 ILogger]: Start accepts. Automaton has 31 states. Word has length 174 [2019-05-23 11:22:01,906 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:01,908 INFO L146 ILogger]: With dead ends: 427 [2019-05-23 11:22:01,908 INFO L146 ILogger]: Without dead ends: 279 [2019-05-23 11:22:01,911 INFO L146 ILogger]: 0 DeclaredPredicates, 201 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1123, Invalid=2299, Unknown=0, NotChecked=0, Total=3422 [2019-05-23 11:22:01,911 INFO L146 ILogger]: Start minimizeSevpa. Operand 279 states. [2019-05-23 11:22:01,914 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 279 to 248. [2019-05-23 11:22:01,915 INFO L146 ILogger]: Start removeUnreachable. Operand 248 states. [2019-05-23 11:22:01,915 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 248 states to 248 states and 260 transitions. [2019-05-23 11:22:01,915 INFO L146 ILogger]: Start accepts. Automaton has 248 states and 260 transitions. Word has length 174 [2019-05-23 11:22:01,916 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:01,916 INFO L146 ILogger]: Abstraction has 248 states and 260 transitions. [2019-05-23 11:22:01,916 INFO L146 ILogger]: Interpolant automaton has 31 states. [2019-05-23 11:22:01,916 INFO L146 ILogger]: Start isEmpty. Operand 248 states and 260 transitions. [2019-05-23 11:22:01,917 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 181 [2019-05-23 11:22:01,917 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:01,917 INFO L146 ILogger]: trace histogram [15, 15, 15, 15, 15, 15, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 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 11:22:01,917 INFO L146 ILogger]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:01,917 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:01,917 INFO L146 ILogger]: Analyzing trace with hash -1614802139, now seen corresponding path program 21 times [2019-05-23 11:22:01,918 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:01,918 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:01,918 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:01,918 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:01,919 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:01,932 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:01,932 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:01,932 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:01,944 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:02,131 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-05-23 11:22:02,132 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:02,133 INFO L146 ILogger]: Trace formula consists of 228 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 11:22:02,135 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:03,365 INFO L146 ILogger]: Checked inductivity of 906 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2019-05-23 11:22:03,385 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:03,385 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2019-05-23 11:22:03,385 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:22:03,386 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:22:03,386 INFO L146 ILogger]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:22:03,386 INFO L146 ILogger]: Start difference. First operand 248 states and 260 transitions. Second operand 21 states. [2019-05-23 11:22:03,836 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:03,836 INFO L146 ILogger]: Finished difference Result 328 states and 345 transitions. [2019-05-23 11:22:03,836 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-05-23 11:22:03,837 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 180 [2019-05-23 11:22:03,837 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:03,839 INFO L146 ILogger]: With dead ends: 328 [2019-05-23 11:22:03,840 INFO L146 ILogger]: Without dead ends: 299 [2019-05-23 11:22:03,841 INFO L146 ILogger]: 0 DeclaredPredicates, 197 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=498, Invalid=984, Unknown=0, NotChecked=0, Total=1482 [2019-05-23 11:22:03,842 INFO L146 ILogger]: Start minimizeSevpa. Operand 299 states. [2019-05-23 11:22:03,845 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 299 to 261. [2019-05-23 11:22:03,845 INFO L146 ILogger]: Start removeUnreachable. Operand 261 states. [2019-05-23 11:22:03,846 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 261 states to 261 states and 274 transitions. [2019-05-23 11:22:03,846 INFO L146 ILogger]: Start accepts. Automaton has 261 states and 274 transitions. Word has length 180 [2019-05-23 11:22:03,846 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:03,846 INFO L146 ILogger]: Abstraction has 261 states and 274 transitions. [2019-05-23 11:22:03,846 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 11:22:03,847 INFO L146 ILogger]: Start isEmpty. Operand 261 states and 274 transitions. [2019-05-23 11:22:03,847 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 188 [2019-05-23 11:22:03,848 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:03,848 INFO L146 ILogger]: trace histogram [15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 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 11:22:03,848 INFO L146 ILogger]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:03,848 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:03,848 INFO L146 ILogger]: Analyzing trace with hash -1851688692, now seen corresponding path program 22 times [2019-05-23 11:22:03,849 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:03,849 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:03,849 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:03,849 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:03,850 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:03,862 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:03,862 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:03,862 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:03,879 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:22:04,729 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:22:04,729 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:04,731 INFO L146 ILogger]: Trace formula consists of 287 conjuncts, 32 conjunts are in the unsatisfiable core [2019-05-23 11:22:04,734 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:05,119 INFO L146 ILogger]: Checked inductivity of 970 backedges. 0 proven. 645 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2019-05-23 11:22:05,138 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:05,139 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2019-05-23 11:22:05,139 INFO L146 ILogger]: Interpolant automaton has 33 states [2019-05-23 11:22:05,139 INFO L146 ILogger]: Constructing interpolant automaton starting with 33 interpolants. [2019-05-23 11:22:05,140 INFO L146 ILogger]: CoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 11:22:05,140 INFO L146 ILogger]: Start difference. First operand 261 states and 274 transitions. Second operand 33 states. [2019-05-23 11:22:05,906 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:05,907 INFO L146 ILogger]: Finished difference Result 459 states and 486 transitions. [2019-05-23 11:22:05,907 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-05-23 11:22:05,907 INFO L146 ILogger]: Start accepts. Automaton has 33 states. Word has length 187 [2019-05-23 11:22:05,908 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:05,909 INFO L146 ILogger]: With dead ends: 459 [2019-05-23 11:22:05,909 INFO L146 ILogger]: Without dead ends: 298 [2019-05-23 11:22:05,912 INFO L146 ILogger]: 0 DeclaredPredicates, 216 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1278, Invalid=2628, Unknown=0, NotChecked=0, Total=3906 [2019-05-23 11:22:05,912 INFO L146 ILogger]: Start minimizeSevpa. Operand 298 states. [2019-05-23 11:22:05,915 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 298 to 267. [2019-05-23 11:22:05,916 INFO L146 ILogger]: Start removeUnreachable. Operand 267 states. [2019-05-23 11:22:05,916 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 267 states to 267 states and 280 transitions. [2019-05-23 11:22:05,916 INFO L146 ILogger]: Start accepts. Automaton has 267 states and 280 transitions. Word has length 187 [2019-05-23 11:22:05,917 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:05,917 INFO L146 ILogger]: Abstraction has 267 states and 280 transitions. [2019-05-23 11:22:05,917 INFO L146 ILogger]: Interpolant automaton has 33 states. [2019-05-23 11:22:05,917 INFO L146 ILogger]: Start isEmpty. Operand 267 states and 280 transitions. [2019-05-23 11:22:05,918 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 194 [2019-05-23 11:22:05,918 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:05,918 INFO L146 ILogger]: trace histogram [16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 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 11:22:05,918 INFO L146 ILogger]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:05,919 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:05,919 INFO L146 ILogger]: Analyzing trace with hash -52995248, now seen corresponding path program 23 times [2019-05-23 11:22:05,919 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:05,919 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:05,920 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:05,920 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:05,920 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:05,932 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:05,933 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:05,933 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:05,947 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:22:36,119 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2019-05-23 11:22:36,119 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:36,134 INFO L146 ILogger]: Trace formula consists of 295 conjuncts, 34 conjunts are in the unsatisfiable core [2019-05-23 11:22:36,137 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:36,525 INFO L146 ILogger]: Checked inductivity of 1061 backedges. 0 proven. 736 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2019-05-23 11:22:36,562 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:36,562 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2019-05-23 11:22:36,563 INFO L146 ILogger]: Interpolant automaton has 35 states [2019-05-23 11:22:36,563 INFO L146 ILogger]: Constructing interpolant automaton starting with 35 interpolants. [2019-05-23 11:22:36,563 INFO L146 ILogger]: CoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 11:22:36,564 INFO L146 ILogger]: Start difference. First operand 267 states and 280 transitions. Second operand 35 states. [2019-05-23 11:22:37,366 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:37,367 INFO L146 ILogger]: Finished difference Result 465 states and 492 transitions. [2019-05-23 11:22:37,367 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-05-23 11:22:37,367 INFO L146 ILogger]: Start accepts. Automaton has 35 states. Word has length 193 [2019-05-23 11:22:37,368 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:37,369 INFO L146 ILogger]: With dead ends: 465 [2019-05-23 11:22:37,370 INFO L146 ILogger]: Without dead ends: 304 [2019-05-23 11:22:37,372 INFO L146 ILogger]: 0 DeclaredPredicates, 224 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 736 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1443, Invalid=2979, Unknown=0, NotChecked=0, Total=4422 [2019-05-23 11:22:37,373 INFO L146 ILogger]: Start minimizeSevpa. Operand 304 states. [2019-05-23 11:22:37,376 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 304 to 273. [2019-05-23 11:22:37,376 INFO L146 ILogger]: Start removeUnreachable. Operand 273 states. [2019-05-23 11:22:37,377 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 273 states to 273 states and 286 transitions. [2019-05-23 11:22:37,377 INFO L146 ILogger]: Start accepts. Automaton has 273 states and 286 transitions. Word has length 193 [2019-05-23 11:22:37,378 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:37,378 INFO L146 ILogger]: Abstraction has 273 states and 286 transitions. [2019-05-23 11:22:37,378 INFO L146 ILogger]: Interpolant automaton has 35 states. [2019-05-23 11:22:37,378 INFO L146 ILogger]: Start isEmpty. Operand 273 states and 286 transitions. [2019-05-23 11:22:37,379 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 200 [2019-05-23 11:22:37,379 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:37,379 INFO L146 ILogger]: trace histogram [17, 17, 17, 17, 17, 17, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 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 11:22:37,380 INFO L146 ILogger]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:37,380 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:37,380 INFO L146 ILogger]: Analyzing trace with hash -1178371436, now seen corresponding path program 24 times [2019-05-23 11:22:37,380 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:37,380 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:37,381 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:37,381 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:37,381 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:37,395 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:37,395 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:37,395 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:37,407 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE