java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/array-industry-pattern/array_of_struct_ptr_mul_init_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:21:52,573 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:21:52,575 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:21:52,587 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:21:52,588 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:21:52,589 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:21:52,590 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:21:52,594 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:21:52,596 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:21:52,599 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:21:52,602 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:21:52,602 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:21:52,604 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:21:52,605 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:21:52,611 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:21:52,612 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:21:52,613 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:21:52,618 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:21:52,624 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:21:52,625 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:21:52,629 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:21:52,632 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:21:52,637 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:21:52,637 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:21:52,641 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:21:52,642 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:21:52,642 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:21:52,645 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:21:52,645 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:21:52,646 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:21:52,647 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:21:52,647 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:21:52,650 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:21:52,650 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:21:52,652 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:21:52,652 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:21:52,653 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:21:52,653 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:21:52,656 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:21:52,657 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:21:52,682 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:21:52,683 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:21:52,684 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:21:52,685 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:21:52,685 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:21:52,685 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:21:52,685 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:21:52,685 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:21:52,686 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:21:52,686 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:21:52,686 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:21:52,686 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:21:52,686 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:21:52,687 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:21:52,687 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:21:52,688 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:21:52,688 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:21:52,688 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:21:52,688 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:21:52,689 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:21:52,689 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:21:52,689 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:21:52,689 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:21:52,690 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:21:52,690 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:21:52,690 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:21:52,690 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:21:52,690 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:21:52,691 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 11:21:52,729 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:21:52,741 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:21:52,745 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:21:52,747 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:21:52,747 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:21:52,748 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-industry-pattern/array_of_struct_ptr_mul_init_true-unreach-call.i [2019-05-23 11:21:52,813 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ecc9c183/225d5af712404a4ebb7d9346986e52a4/FLAG33e480c4c [2019-05-23 11:21:53,258 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:21:53,259 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-industry-pattern/array_of_struct_ptr_mul_init_true-unreach-call.i [2019-05-23 11:21:53,265 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ecc9c183/225d5af712404a4ebb7d9346986e52a4/FLAG33e480c4c [2019-05-23 11:21:53,639 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ecc9c183/225d5af712404a4ebb7d9346986e52a4 [2019-05-23 11:21:53,649 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:21:53,651 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:21:53,652 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:21:53,652 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:21:53,655 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:21:53,656 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:21:53" (1/1) ... [2019-05-23 11:21:53,659 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a88b956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:53, skipping insertion in model container [2019-05-23 11:21:53,659 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:21:53" (1/1) ... [2019-05-23 11:21:53,667 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:21:53,685 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:21:53,878 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:21:56,774 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:21:56,797 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:21:56,829 INFO L146 ILogger]: Completed translation [2019-05-23 11:21:56,830 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:56 WrapperNode [2019-05-23 11:21:56,830 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:21:56,831 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:21:56,832 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:21:56,832 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:21:56,841 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:56" (1/1) ... [2019-05-23 11:21:56,856 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:56" (1/1) ... [2019-05-23 11:21:56,880 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:21:56,881 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:21:56,881 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:21:56,881 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:21:56,893 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:56" (1/1) ... [2019-05-23 11:21:56,893 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:56" (1/1) ... [2019-05-23 11:21:56,895 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:56" (1/1) ... [2019-05-23 11:21:56,895 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:56" (1/1) ... [2019-05-23 11:21:56,901 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:56" (1/1) ... [2019-05-23 11:21:56,908 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:56" (1/1) ... [2019-05-23 11:21:56,910 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:56" (1/1) ... [2019-05-23 11:21:56,912 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:21:56,912 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:21:56,912 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:21:56,912 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:21:56,913 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:56" (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 11:21:56,973 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:21:56,973 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:21:56,973 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:21:56,974 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:21:56,974 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:21:57,456 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:21:57,457 INFO L146 ILogger]: Removed 9 assume(true) statements. [2019-05-23 11:21:57,458 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:21:57 BoogieIcfgContainer [2019-05-23 11:21:57,458 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:21:57,459 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:21:57,459 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:21:57,462 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:21:57,463 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:21:53" (1/3) ... [2019-05-23 11:21:57,463 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1347b429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:21:57, skipping insertion in model container [2019-05-23 11:21:57,466 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:21:56" (2/3) ... [2019-05-23 11:21:57,466 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1347b429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:21:57, skipping insertion in model container [2019-05-23 11:21:57,467 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:21:57" (3/3) ... [2019-05-23 11:21:57,470 INFO L146 ILogger]: Analyzing ICFG array_of_struct_ptr_mul_init_true-unreach-call.i [2019-05-23 11:21:57,479 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:21:57,490 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:21:57,506 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:21:57,544 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:21:57,545 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:21:57,545 INFO L146 ILogger]: Hoare is true [2019-05-23 11:21:57,545 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:21:57,545 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:21:57,546 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:21:57,546 INFO L146 ILogger]: Difference is false [2019-05-23 11:21:57,546 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:21:57,546 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:21:57,561 INFO L146 ILogger]: Start isEmpty. Operand 57 states. [2019-05-23 11:21:57,567 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 24 [2019-05-23 11:21:57,568 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:57,569 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 11:21:57,571 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:57,576 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:57,577 INFO L146 ILogger]: Analyzing trace with hash 983704041, now seen corresponding path program 1 times [2019-05-23 11:21:57,578 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:57,578 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:57,619 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:57,619 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:57,619 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:57,653 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:57,690 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 11:21:57,692 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:21:57,693 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:21:57,696 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:21:57,706 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:21:57,707 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:21:57,709 INFO L146 ILogger]: Start difference. First operand 57 states. Second operand 2 states. [2019-05-23 11:21:57,726 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:57,726 INFO L146 ILogger]: Finished difference Result 99 states and 113 transitions. [2019-05-23 11:21:57,726 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:21:57,728 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 23 [2019-05-23 11:21:57,728 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:57,738 INFO L146 ILogger]: With dead ends: 99 [2019-05-23 11:21:57,738 INFO L146 ILogger]: Without dead ends: 53 [2019-05-23 11:21:57,741 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 11:21:57,760 INFO L146 ILogger]: Start minimizeSevpa. Operand 53 states. [2019-05-23 11:21:57,774 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-05-23 11:21:57,776 INFO L146 ILogger]: Start removeUnreachable. Operand 53 states. [2019-05-23 11:21:57,777 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2019-05-23 11:21:57,779 INFO L146 ILogger]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 23 [2019-05-23 11:21:57,779 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:57,779 INFO L146 ILogger]: Abstraction has 53 states and 57 transitions. [2019-05-23 11:21:57,779 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:21:57,780 INFO L146 ILogger]: Start isEmpty. Operand 53 states and 57 transitions. [2019-05-23 11:21:57,780 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 24 [2019-05-23 11:21:57,781 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:57,781 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 11:21:57,781 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:57,781 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:57,782 INFO L146 ILogger]: Analyzing trace with hash 1744322995, now seen corresponding path program 1 times [2019-05-23 11:21:57,782 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:57,782 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:57,783 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:57,783 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:57,784 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:57,795 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:57,837 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 11:21:57,837 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:21:57,837 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:21:57,842 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:21:57,843 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:21:57,845 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:21:57,845 INFO L146 ILogger]: Start difference. First operand 53 states and 57 transitions. Second operand 3 states. [2019-05-23 11:21:58,179 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:58,179 INFO L146 ILogger]: Finished difference Result 130 states and 141 transitions. [2019-05-23 11:21:58,181 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:21:58,181 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 23 [2019-05-23 11:21:58,181 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:58,183 INFO L146 ILogger]: With dead ends: 130 [2019-05-23 11:21:58,183 INFO L146 ILogger]: Without dead ends: 92 [2019-05-23 11:21:58,184 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 11:21:58,185 INFO L146 ILogger]: Start minimizeSevpa. Operand 92 states. [2019-05-23 11:21:58,197 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 92 to 55. [2019-05-23 11:21:58,197 INFO L146 ILogger]: Start removeUnreachable. Operand 55 states. [2019-05-23 11:21:58,198 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2019-05-23 11:21:58,199 INFO L146 ILogger]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 23 [2019-05-23 11:21:58,199 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:58,199 INFO L146 ILogger]: Abstraction has 55 states and 59 transitions. [2019-05-23 11:21:58,199 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:21:58,200 INFO L146 ILogger]: Start isEmpty. Operand 55 states and 59 transitions. [2019-05-23 11:21:58,201 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 37 [2019-05-23 11:21:58,202 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:58,202 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 11:21:58,202 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:58,202 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:58,203 INFO L146 ILogger]: Analyzing trace with hash -1890283681, now seen corresponding path program 1 times [2019-05-23 11:21:58,203 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:58,203 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:58,204 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:58,205 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:58,205 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:58,247 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:58,348 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 11:21:58,349 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:58,349 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 11:21:58,369 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:58,410 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:58,412 INFO L146 ILogger]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 11:21:58,419 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:58,490 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 11:21:58,511 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:21:58,512 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-05-23 11:21:58,512 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:21:58,512 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:21:58,513 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:21:58,513 INFO L146 ILogger]: Start difference. First operand 55 states and 59 transitions. Second operand 7 states. [2019-05-23 11:21:58,845 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:21:58,845 INFO L146 ILogger]: Finished difference Result 137 states and 147 transitions. [2019-05-23 11:21:58,848 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:21:58,848 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 36 [2019-05-23 11:21:58,849 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:21:58,850 INFO L146 ILogger]: With dead ends: 137 [2019-05-23 11:21:58,850 INFO L146 ILogger]: Without dead ends: 98 [2019-05-23 11:21:58,851 INFO L146 ILogger]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:21:58,851 INFO L146 ILogger]: Start minimizeSevpa. Operand 98 states. [2019-05-23 11:21:58,863 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 98 to 61. [2019-05-23 11:21:58,864 INFO L146 ILogger]: Start removeUnreachable. Operand 61 states. [2019-05-23 11:21:58,865 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2019-05-23 11:21:58,865 INFO L146 ILogger]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 36 [2019-05-23 11:21:58,865 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:21:58,865 INFO L146 ILogger]: Abstraction has 61 states and 65 transitions. [2019-05-23 11:21:58,866 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:21:58,871 INFO L146 ILogger]: Start isEmpty. Operand 61 states and 65 transitions. [2019-05-23 11:21:58,872 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 43 [2019-05-23 11:21:58,872 INFO L146 ILogger]: Found error trace [2019-05-23 11:21:58,872 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 11:21:58,874 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:21:58,874 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:21:58,874 INFO L146 ILogger]: Analyzing trace with hash 1345274267, now seen corresponding path program 2 times [2019-05-23 11:21:58,874 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:21:58,874 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:21:58,876 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:58,876 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:21:58,876 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:21:58,896 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:59,021 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 11:21:59,022 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:21:59,022 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 11:21:59,040 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:21:59,053 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-05-23 11:21:59,054 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:21:59,054 INFO L146 ILogger]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 11:21:59,056 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:21:59,089 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 11:21:59,120 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:21:59,120 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-05-23 11:21:59,121 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 11:21:59,121 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 11:21:59,121 INFO L146 ILogger]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:21:59,122 INFO L146 ILogger]: Start difference. First operand 61 states and 65 transitions. Second operand 8 states. [2019-05-23 11:22:00,021 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:00,022 INFO L146 ILogger]: Finished difference Result 169 states and 181 transitions. [2019-05-23 11:22:00,022 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:22:00,022 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 42 [2019-05-23 11:22:00,022 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:00,024 INFO L146 ILogger]: With dead ends: 169 [2019-05-23 11:22:00,024 INFO L146 ILogger]: Without dead ends: 144 [2019-05-23 11:22:00,025 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 11:22:00,026 INFO L146 ILogger]: Start minimizeSevpa. Operand 144 states. [2019-05-23 11:22:00,032 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 144 to 77. [2019-05-23 11:22:00,032 INFO L146 ILogger]: Start removeUnreachable. Operand 77 states. [2019-05-23 11:22:00,033 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2019-05-23 11:22:00,034 INFO L146 ILogger]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 42 [2019-05-23 11:22:00,034 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:00,034 INFO L146 ILogger]: Abstraction has 77 states and 82 transitions. [2019-05-23 11:22:00,034 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 11:22:00,035 INFO L146 ILogger]: Start isEmpty. Operand 77 states and 82 transitions. [2019-05-23 11:22:00,037 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 54 [2019-05-23 11:22:00,037 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:00,037 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 11:22:00,037 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:00,038 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:00,038 INFO L146 ILogger]: Analyzing trace with hash 1484716855, now seen corresponding path program 1 times [2019-05-23 11:22:00,038 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:00,038 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:00,039 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:00,039 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:00,039 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:00,063 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:00,063 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:00,063 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 11:22:00,218 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:00,247 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:00,248 INFO L146 ILogger]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:00,250 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:00,317 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 11:22:00,339 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:00,339 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:22:00,340 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:22:00,340 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:22:00,340 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:22:00,341 INFO L146 ILogger]: Start difference. First operand 77 states and 82 transitions. Second operand 7 states. [2019-05-23 11:22:00,747 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:00,747 INFO L146 ILogger]: Finished difference Result 169 states and 180 transitions. [2019-05-23 11:22:00,747 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:22:00,748 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 53 [2019-05-23 11:22:00,748 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:00,750 INFO L146 ILogger]: With dead ends: 169 [2019-05-23 11:22:00,750 INFO L146 ILogger]: Without dead ends: 114 [2019-05-23 11:22:00,751 INFO L146 ILogger]: 0 DeclaredPredicates, 56 GetRequests, 47 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 11:22:00,752 INFO L146 ILogger]: Start minimizeSevpa. Operand 114 states. [2019-05-23 11:22:00,758 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 114 to 83. [2019-05-23 11:22:00,758 INFO L146 ILogger]: Start removeUnreachable. Operand 83 states. [2019-05-23 11:22:00,763 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2019-05-23 11:22:00,763 INFO L146 ILogger]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 53 [2019-05-23 11:22:00,764 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:00,764 INFO L146 ILogger]: Abstraction has 83 states and 88 transitions. [2019-05-23 11:22:00,764 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:22:00,764 INFO L146 ILogger]: Start isEmpty. Operand 83 states and 88 transitions. [2019-05-23 11:22:00,766 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 60 [2019-05-23 11:22:00,766 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:00,766 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 11:22:00,767 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:00,767 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:00,767 INFO L146 ILogger]: Analyzing trace with hash -1471182725, now seen corresponding path program 2 times [2019-05-23 11:22:00,767 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:00,767 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:00,769 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:00,769 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:00,769 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:00,791 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:00,791 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:00,792 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 11:22:00,804 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:00,831 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:00,832 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:00,833 INFO L146 ILogger]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:22:00,840 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:00,961 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 11:22:00,980 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:00,980 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 11:22:00,980 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:22:00,981 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:22:00,981 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:22:00,981 INFO L146 ILogger]: Start difference. First operand 83 states and 88 transitions. Second operand 9 states. [2019-05-23 11:22:01,325 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:01,326 INFO L146 ILogger]: Finished difference Result 175 states and 186 transitions. [2019-05-23 11:22:01,326 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:22:01,326 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 59 [2019-05-23 11:22:01,327 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:01,328 INFO L146 ILogger]: With dead ends: 175 [2019-05-23 11:22:01,328 INFO L146 ILogger]: Without dead ends: 120 [2019-05-23 11:22:01,329 INFO L146 ILogger]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:01,330 INFO L146 ILogger]: Start minimizeSevpa. Operand 120 states. [2019-05-23 11:22:01,335 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 120 to 89. [2019-05-23 11:22:01,336 INFO L146 ILogger]: Start removeUnreachable. Operand 89 states. [2019-05-23 11:22:01,336 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 89 states to 89 states and 94 transitions. [2019-05-23 11:22:01,337 INFO L146 ILogger]: Start accepts. Automaton has 89 states and 94 transitions. Word has length 59 [2019-05-23 11:22:01,337 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:01,337 INFO L146 ILogger]: Abstraction has 89 states and 94 transitions. [2019-05-23 11:22:01,337 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:22:01,337 INFO L146 ILogger]: Start isEmpty. Operand 89 states and 94 transitions. [2019-05-23 11:22:01,341 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 66 [2019-05-23 11:22:01,341 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:01,342 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 11:22:01,342 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:01,342 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:01,342 INFO L146 ILogger]: Analyzing trace with hash -1209396545, now seen corresponding path program 3 times [2019-05-23 11:22:01,342 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:01,343 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:01,343 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:01,344 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:01,345 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:01,378 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:01,378 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:01,378 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 11:22:01,401 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:01,424 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:22:01,425 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:01,425 INFO L146 ILogger]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:01,431 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:01,495 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 11:22:01,513 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:01,514 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:22:01,514 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:22:01,514 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:22:01,515 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:22:01,515 INFO L146 ILogger]: Start difference. First operand 89 states and 94 transitions. Second operand 7 states. [2019-05-23 11:22:01,658 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:01,658 INFO L146 ILogger]: Finished difference Result 167 states and 177 transitions. [2019-05-23 11:22:01,658 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:22:01,659 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 65 [2019-05-23 11:22:01,659 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:01,660 INFO L146 ILogger]: With dead ends: 167 [2019-05-23 11:22:01,660 INFO L146 ILogger]: Without dead ends: 138 [2019-05-23 11:22:01,661 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 11:22:01,662 INFO L146 ILogger]: Start minimizeSevpa. Operand 138 states. [2019-05-23 11:22:01,668 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 138 to 101. [2019-05-23 11:22:01,668 INFO L146 ILogger]: Start removeUnreachable. Operand 101 states. [2019-05-23 11:22:01,669 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 101 states to 101 states and 107 transitions. [2019-05-23 11:22:01,669 INFO L146 ILogger]: Start accepts. Automaton has 101 states and 107 transitions. Word has length 65 [2019-05-23 11:22:01,669 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:01,670 INFO L146 ILogger]: Abstraction has 101 states and 107 transitions. [2019-05-23 11:22:01,670 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:22:01,670 INFO L146 ILogger]: Start isEmpty. Operand 101 states and 107 transitions. [2019-05-23 11:22:01,671 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 73 [2019-05-23 11:22:01,671 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:01,671 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 11:22:01,671 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:01,672 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:01,672 INFO L146 ILogger]: Analyzing trace with hash -1544712945, now seen corresponding path program 4 times [2019-05-23 11:22:01,672 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:01,672 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:01,673 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:01,673 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:01,673 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:01,691 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:01,692 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:01,692 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 11:22:01,713 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:22:01,751 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:22:01,751 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:01,752 INFO L146 ILogger]: Trace formula consists of 115 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:22:01,757 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:01,875 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 11:22:01,894 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:01,894 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2019-05-23 11:22:01,895 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:22:01,895 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:22:01,895 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:01,895 INFO L146 ILogger]: Start difference. First operand 101 states and 107 transitions. Second operand 11 states. [2019-05-23 11:22:02,143 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:02,144 INFO L146 ILogger]: Finished difference Result 205 states and 218 transitions. [2019-05-23 11:22:02,144 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:22:02,144 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 72 [2019-05-23 11:22:02,145 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:02,146 INFO L146 ILogger]: With dead ends: 205 [2019-05-23 11:22:02,146 INFO L146 ILogger]: Without dead ends: 138 [2019-05-23 11:22:02,147 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 11:22:02,147 INFO L146 ILogger]: Start minimizeSevpa. Operand 138 states. [2019-05-23 11:22:02,152 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 138 to 107. [2019-05-23 11:22:02,152 INFO L146 ILogger]: Start removeUnreachable. Operand 107 states. [2019-05-23 11:22:02,153 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 107 states to 107 states and 113 transitions. [2019-05-23 11:22:02,153 INFO L146 ILogger]: Start accepts. Automaton has 107 states and 113 transitions. Word has length 72 [2019-05-23 11:22:02,153 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:02,153 INFO L146 ILogger]: Abstraction has 107 states and 113 transitions. [2019-05-23 11:22:02,153 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:22:02,153 INFO L146 ILogger]: Start isEmpty. Operand 107 states and 113 transitions. [2019-05-23 11:22:02,154 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 79 [2019-05-23 11:22:02,154 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:02,155 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 11:22:02,155 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:02,155 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:02,155 INFO L146 ILogger]: Analyzing trace with hash -869478069, now seen corresponding path program 5 times [2019-05-23 11:22:02,155 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:02,156 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:02,157 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:02,157 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:02,157 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:02,173 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:02,173 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:02,173 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (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 11:22:02,185 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:22:02,248 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-05-23 11:22:02,248 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:02,249 INFO L146 ILogger]: Trace formula consists of 123 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:22:02,252 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:02,449 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 11:22:02,468 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:02,468 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 11:22:02,468 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:22:02,468 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:22:02,469 INFO L146 ILogger]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:02,469 INFO L146 ILogger]: Start difference. First operand 107 states and 113 transitions. Second operand 13 states. [2019-05-23 11:22:03,067 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:03,068 INFO L146 ILogger]: Finished difference Result 211 states and 224 transitions. [2019-05-23 11:22:03,068 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:22:03,068 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 78 [2019-05-23 11:22:03,069 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:03,069 INFO L146 ILogger]: With dead ends: 211 [2019-05-23 11:22:03,070 INFO L146 ILogger]: Without dead ends: 144 [2019-05-23 11:22:03,071 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 11:22:03,071 INFO L146 ILogger]: Start minimizeSevpa. Operand 144 states. [2019-05-23 11:22:03,075 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 144 to 113. [2019-05-23 11:22:03,075 INFO L146 ILogger]: Start removeUnreachable. Operand 113 states. [2019-05-23 11:22:03,076 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 113 states to 113 states and 119 transitions. [2019-05-23 11:22:03,076 INFO L146 ILogger]: Start accepts. Automaton has 113 states and 119 transitions. Word has length 78 [2019-05-23 11:22:03,077 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:03,077 INFO L146 ILogger]: Abstraction has 113 states and 119 transitions. [2019-05-23 11:22:03,077 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:22:03,077 INFO L146 ILogger]: Start isEmpty. Operand 113 states and 119 transitions. [2019-05-23 11:22:03,078 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 85 [2019-05-23 11:22:03,078 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:03,078 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 11:22:03,078 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:03,079 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:03,079 INFO L146 ILogger]: Analyzing trace with hash 383711367, now seen corresponding path program 6 times [2019-05-23 11:22:03,079 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:03,079 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:03,080 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:03,080 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:03,080 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:03,096 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:03,096 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:03,096 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 11:22:03,114 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:22:03,191 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-05-23 11:22:03,192 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:03,193 INFO L146 ILogger]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:22:03,195 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:03,290 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 11:22:03,309 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:03,309 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 11:22:03,310 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:22:03,310 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:22:03,310 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:22:03,310 INFO L146 ILogger]: Start difference. First operand 113 states and 119 transitions. Second operand 9 states. [2019-05-23 11:22:03,479 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:03,480 INFO L146 ILogger]: Finished difference Result 191 states and 202 transitions. [2019-05-23 11:22:03,480 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:22:03,480 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 84 [2019-05-23 11:22:03,481 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:03,482 INFO L146 ILogger]: With dead ends: 191 [2019-05-23 11:22:03,482 INFO L146 ILogger]: Without dead ends: 162 [2019-05-23 11:22:03,483 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 11:22:03,483 INFO L146 ILogger]: Start minimizeSevpa. Operand 162 states. [2019-05-23 11:22:03,487 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 162 to 125. [2019-05-23 11:22:03,487 INFO L146 ILogger]: Start removeUnreachable. Operand 125 states. [2019-05-23 11:22:03,488 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 125 states to 125 states and 132 transitions. [2019-05-23 11:22:03,488 INFO L146 ILogger]: Start accepts. Automaton has 125 states and 132 transitions. Word has length 84 [2019-05-23 11:22:03,488 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:03,489 INFO L146 ILogger]: Abstraction has 125 states and 132 transitions. [2019-05-23 11:22:03,489 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:22:03,489 INFO L146 ILogger]: Start isEmpty. Operand 125 states and 132 transitions. [2019-05-23 11:22:03,490 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 92 [2019-05-23 11:22:03,490 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:03,490 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 11:22:03,490 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:03,490 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:03,491 INFO L146 ILogger]: Analyzing trace with hash -544729529, now seen corresponding path program 7 times [2019-05-23 11:22:03,491 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:03,491 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:03,492 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:03,492 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:03,492 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:03,507 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:03,508 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:03,508 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 11:22:03,529 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:03,553 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:03,554 INFO L146 ILogger]: Trace formula consists of 142 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:22:03,556 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:03,741 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 11:22:03,763 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:03,763 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2019-05-23 11:22:03,764 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:22:03,764 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:22:03,764 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:03,764 INFO L146 ILogger]: Start difference. First operand 125 states and 132 transitions. Second operand 15 states. [2019-05-23 11:22:04,056 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:04,056 INFO L146 ILogger]: Finished difference Result 241 states and 256 transitions. [2019-05-23 11:22:04,056 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:22:04,057 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 91 [2019-05-23 11:22:04,057 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:04,058 INFO L146 ILogger]: With dead ends: 241 [2019-05-23 11:22:04,058 INFO L146 ILogger]: Without dead ends: 162 [2019-05-23 11:22:04,059 INFO L146 ILogger]: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=243, Invalid=459, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:22:04,060 INFO L146 ILogger]: Start minimizeSevpa. Operand 162 states. [2019-05-23 11:22:04,063 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 162 to 131. [2019-05-23 11:22:04,063 INFO L146 ILogger]: Start removeUnreachable. Operand 131 states. [2019-05-23 11:22:04,064 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 131 states to 131 states and 138 transitions. [2019-05-23 11:22:04,064 INFO L146 ILogger]: Start accepts. Automaton has 131 states and 138 transitions. Word has length 91 [2019-05-23 11:22:04,064 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:04,065 INFO L146 ILogger]: Abstraction has 131 states and 138 transitions. [2019-05-23 11:22:04,065 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:22:04,065 INFO L146 ILogger]: Start isEmpty. Operand 131 states and 138 transitions. [2019-05-23 11:22:04,066 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 98 [2019-05-23 11:22:04,066 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:04,066 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 11:22:04,066 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:04,066 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:04,067 INFO L146 ILogger]: Analyzing trace with hash -1077374837, now seen corresponding path program 8 times [2019-05-23 11:22:04,067 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:04,067 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:04,068 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:04,068 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:04,068 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:04,088 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:04,088 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:04,089 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 11:22:04,098 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:04,124 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:04,125 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:04,126 INFO L146 ILogger]: Trace formula consists of 150 conjuncts, 16 conjunts are in the unsatisfiable core [2019-05-23 11:22:04,128 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:04,344 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 11:22:04,362 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:04,363 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2019-05-23 11:22:04,363 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 11:22:04,363 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 11:22:04,364 INFO L146 ILogger]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:22:04,364 INFO L146 ILogger]: Start difference. First operand 131 states and 138 transitions. Second operand 17 states. [2019-05-23 11:22:04,705 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:04,705 INFO L146 ILogger]: Finished difference Result 247 states and 262 transitions. [2019-05-23 11:22:04,706 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-05-23 11:22:04,706 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 97 [2019-05-23 11:22:04,706 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:04,708 INFO L146 ILogger]: With dead ends: 247 [2019-05-23 11:22:04,708 INFO L146 ILogger]: Without dead ends: 168 [2019-05-23 11:22:04,709 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 11:22:04,710 INFO L146 ILogger]: Start minimizeSevpa. Operand 168 states. [2019-05-23 11:22:04,712 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 168 to 137. [2019-05-23 11:22:04,713 INFO L146 ILogger]: Start removeUnreachable. Operand 137 states. [2019-05-23 11:22:04,713 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 137 states to 137 states and 144 transitions. [2019-05-23 11:22:04,713 INFO L146 ILogger]: Start accepts. Automaton has 137 states and 144 transitions. Word has length 97 [2019-05-23 11:22:04,714 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:04,714 INFO L146 ILogger]: Abstraction has 137 states and 144 transitions. [2019-05-23 11:22:04,714 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 11:22:04,714 INFO L146 ILogger]: Start isEmpty. Operand 137 states and 144 transitions. [2019-05-23 11:22:04,715 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 104 [2019-05-23 11:22:04,715 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:04,715 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 11:22:04,716 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:04,716 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:04,716 INFO L146 ILogger]: Analyzing trace with hash 896354255, now seen corresponding path program 9 times [2019-05-23 11:22:04,716 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:04,716 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:04,717 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:04,717 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:04,717 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:04,732 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:04,732 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:04,732 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:22:04,756 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:04,868 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-05-23 11:22:04,868 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:04,869 INFO L146 ILogger]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:22:04,870 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:04,956 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 11:22:04,976 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:04,976 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2019-05-23 11:22:04,977 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:22:04,977 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:22:04,977 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:04,977 INFO L146 ILogger]: Start difference. First operand 137 states and 144 transitions. Second operand 11 states. [2019-05-23 11:22:05,203 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:05,203 INFO L146 ILogger]: Finished difference Result 215 states and 227 transitions. [2019-05-23 11:22:05,203 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:22:05,203 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 103 [2019-05-23 11:22:05,204 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:05,205 INFO L146 ILogger]: With dead ends: 215 [2019-05-23 11:22:05,205 INFO L146 ILogger]: Without dead ends: 186 [2019-05-23 11:22:05,206 INFO L146 ILogger]: 0 DeclaredPredicates, 110 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:22:05,207 INFO L146 ILogger]: Start minimizeSevpa. Operand 186 states. [2019-05-23 11:22:05,210 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 186 to 149. [2019-05-23 11:22:05,210 INFO L146 ILogger]: Start removeUnreachable. Operand 149 states. [2019-05-23 11:22:05,211 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 149 states to 149 states and 157 transitions. [2019-05-23 11:22:05,211 INFO L146 ILogger]: Start accepts. Automaton has 149 states and 157 transitions. Word has length 103 [2019-05-23 11:22:05,211 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:05,212 INFO L146 ILogger]: Abstraction has 149 states and 157 transitions. [2019-05-23 11:22:05,212 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:22:05,212 INFO L146 ILogger]: Start isEmpty. Operand 149 states and 157 transitions. [2019-05-23 11:22:05,213 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 111 [2019-05-23 11:22:05,213 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:05,213 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 11:22:05,213 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:05,214 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:05,214 INFO L146 ILogger]: Analyzing trace with hash -1721268737, now seen corresponding path program 10 times [2019-05-23 11:22:05,214 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:05,214 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:05,215 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:05,215 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:05,215 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:05,229 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:05,229 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:05,229 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 11:22:05,255 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:22:05,334 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:22:05,334 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:05,335 INFO L146 ILogger]: Trace formula consists of 169 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:22:05,336 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:05,534 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 11:22:05,553 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:05,553 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2019-05-23 11:22:05,553 INFO L146 ILogger]: Interpolant automaton has 19 states [2019-05-23 11:22:05,554 INFO L146 ILogger]: Constructing interpolant automaton starting with 19 interpolants. [2019-05-23 11:22:05,554 INFO L146 ILogger]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:22:05,554 INFO L146 ILogger]: Start difference. First operand 149 states and 157 transitions. Second operand 19 states. [2019-05-23 11:22:05,938 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:05,939 INFO L146 ILogger]: Finished difference Result 277 states and 294 transitions. [2019-05-23 11:22:05,939 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-05-23 11:22:05,939 INFO L146 ILogger]: Start accepts. Automaton has 19 states. Word has length 110 [2019-05-23 11:22:05,940 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:05,941 INFO L146 ILogger]: With dead ends: 277 [2019-05-23 11:22:05,941 INFO L146 ILogger]: Without dead ends: 186 [2019-05-23 11:22:05,943 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 11:22:05,943 INFO L146 ILogger]: Start minimizeSevpa. Operand 186 states. [2019-05-23 11:22:05,946 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 186 to 155. [2019-05-23 11:22:05,946 INFO L146 ILogger]: Start removeUnreachable. Operand 155 states. [2019-05-23 11:22:05,947 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 155 states to 155 states and 163 transitions. [2019-05-23 11:22:05,947 INFO L146 ILogger]: Start accepts. Automaton has 155 states and 163 transitions. Word has length 110 [2019-05-23 11:22:05,947 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:05,947 INFO L146 ILogger]: Abstraction has 155 states and 163 transitions. [2019-05-23 11:22:05,947 INFO L146 ILogger]: Interpolant automaton has 19 states. [2019-05-23 11:22:05,948 INFO L146 ILogger]: Start isEmpty. Operand 155 states and 163 transitions. [2019-05-23 11:22:05,949 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 117 [2019-05-23 11:22:05,949 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:05,949 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 11:22:05,949 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:05,949 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:05,949 INFO L146 ILogger]: Analyzing trace with hash -129123013, now seen corresponding path program 11 times [2019-05-23 11:22:05,950 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:05,950 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:05,951 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:05,951 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:05,951 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:05,964 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:05,964 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:05,964 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 11:22:05,983 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:22:06,091 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2019-05-23 11:22:06,091 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:06,093 INFO L146 ILogger]: Trace formula consists of 177 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:22:06,094 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:06,199 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 11:22:06,218 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:06,218 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 11:22:06,219 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:22:06,219 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:22:06,219 INFO L146 ILogger]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:06,219 INFO L146 ILogger]: Start difference. First operand 155 states and 163 transitions. Second operand 13 states. [2019-05-23 11:22:06,506 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:06,506 INFO L146 ILogger]: Finished difference Result 233 states and 246 transitions. [2019-05-23 11:22:06,506 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:22:06,507 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 116 [2019-05-23 11:22:06,507 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:06,508 INFO L146 ILogger]: With dead ends: 233 [2019-05-23 11:22:06,509 INFO L146 ILogger]: Without dead ends: 204 [2019-05-23 11:22:06,510 INFO L146 ILogger]: 0 DeclaredPredicates, 125 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=178, Invalid=328, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:22:06,510 INFO L146 ILogger]: Start minimizeSevpa. Operand 204 states. [2019-05-23 11:22:06,516 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 204 to 167. [2019-05-23 11:22:06,516 INFO L146 ILogger]: Start removeUnreachable. Operand 167 states. [2019-05-23 11:22:06,517 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 167 states to 167 states and 176 transitions. [2019-05-23 11:22:06,517 INFO L146 ILogger]: Start accepts. Automaton has 167 states and 176 transitions. Word has length 116 [2019-05-23 11:22:06,517 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:06,518 INFO L146 ILogger]: Abstraction has 167 states and 176 transitions. [2019-05-23 11:22:06,518 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:22:06,518 INFO L146 ILogger]: Start isEmpty. Operand 167 states and 176 transitions. [2019-05-23 11:22:06,519 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 124 [2019-05-23 11:22:06,519 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:06,519 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 11:22:06,519 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:06,519 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:06,520 INFO L146 ILogger]: Analyzing trace with hash -1761059053, now seen corresponding path program 12 times [2019-05-23 11:22:06,520 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:06,520 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:06,520 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:06,521 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:06,521 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:06,533 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:06,533 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:06,534 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 11:22:06,551 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:22:06,960 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2019-05-23 11:22:06,960 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:06,963 INFO L146 ILogger]: Trace formula consists of 188 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 11:22:06,965 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:07,422 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 11:22:07,441 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:07,441 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2019-05-23 11:22:07,442 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:22:07,442 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:22:07,442 INFO L146 ILogger]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:22:07,442 INFO L146 ILogger]: Start difference. First operand 167 states and 176 transitions. Second operand 21 states. [2019-05-23 11:22:07,940 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:07,940 INFO L146 ILogger]: Finished difference Result 307 states and 326 transitions. [2019-05-23 11:22:07,940 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-05-23 11:22:07,940 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 123 [2019-05-23 11:22:07,941 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:07,941 INFO L146 ILogger]: With dead ends: 307 [2019-05-23 11:22:07,942 INFO L146 ILogger]: Without dead ends: 204 [2019-05-23 11:22:07,943 INFO L146 ILogger]: 0 DeclaredPredicates, 140 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=498, Invalid=984, Unknown=0, NotChecked=0, Total=1482 [2019-05-23 11:22:07,943 INFO L146 ILogger]: Start minimizeSevpa. Operand 204 states. [2019-05-23 11:22:07,946 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 204 to 173. [2019-05-23 11:22:07,946 INFO L146 ILogger]: Start removeUnreachable. Operand 173 states. [2019-05-23 11:22:07,947 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 173 states to 173 states and 182 transitions. [2019-05-23 11:22:07,947 INFO L146 ILogger]: Start accepts. Automaton has 173 states and 182 transitions. Word has length 123 [2019-05-23 11:22:07,947 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:07,947 INFO L146 ILogger]: Abstraction has 173 states and 182 transitions. [2019-05-23 11:22:07,947 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 11:22:07,947 INFO L146 ILogger]: Start isEmpty. Operand 173 states and 182 transitions. [2019-05-23 11:22:07,948 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 130 [2019-05-23 11:22:07,949 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:07,949 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 11:22:07,949 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:07,949 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:07,949 INFO L146 ILogger]: Analyzing trace with hash -1272002217, now seen corresponding path program 13 times [2019-05-23 11:22:07,950 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:07,950 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:07,950 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:07,951 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:07,951 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:07,963 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:07,963 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:07,964 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 11:22:07,976 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:08,005 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:08,006 INFO L146 ILogger]: Trace formula consists of 196 conjuncts, 22 conjunts are in the unsatisfiable core [2019-05-23 11:22:08,008 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:08,232 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 11:22:08,250 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:08,250 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2019-05-23 11:22:08,251 INFO L146 ILogger]: Interpolant automaton has 23 states [2019-05-23 11:22:08,251 INFO L146 ILogger]: Constructing interpolant automaton starting with 23 interpolants. [2019-05-23 11:22:08,251 INFO L146 ILogger]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:22:08,252 INFO L146 ILogger]: Start difference. First operand 173 states and 182 transitions. Second operand 23 states. [2019-05-23 11:22:08,904 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:08,905 INFO L146 ILogger]: Finished difference Result 313 states and 332 transitions. [2019-05-23 11:22:08,905 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-05-23 11:22:08,906 INFO L146 ILogger]: Start accepts. Automaton has 23 states. Word has length 129 [2019-05-23 11:22:08,906 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:08,908 INFO L146 ILogger]: With dead ends: 313 [2019-05-23 11:22:08,908 INFO L146 ILogger]: Without dead ends: 210 [2019-05-23 11:22:08,909 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 11:22:08,913 INFO L146 ILogger]: Start minimizeSevpa. Operand 210 states. [2019-05-23 11:22:08,917 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 210 to 179. [2019-05-23 11:22:08,918 INFO L146 ILogger]: Start removeUnreachable. Operand 179 states. [2019-05-23 11:22:08,919 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 179 states to 179 states and 188 transitions. [2019-05-23 11:22:08,919 INFO L146 ILogger]: Start accepts. Automaton has 179 states and 188 transitions. Word has length 129 [2019-05-23 11:22:08,919 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:08,920 INFO L146 ILogger]: Abstraction has 179 states and 188 transitions. [2019-05-23 11:22:08,920 INFO L146 ILogger]: Interpolant automaton has 23 states. [2019-05-23 11:22:08,920 INFO L146 ILogger]: Start isEmpty. Operand 179 states and 188 transitions. [2019-05-23 11:22:08,921 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 136 [2019-05-23 11:22:08,921 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:08,922 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 11:22:08,922 INFO L146 ILogger]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:08,922 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:08,923 INFO L146 ILogger]: Analyzing trace with hash 1048932507, now seen corresponding path program 14 times [2019-05-23 11:22:08,923 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:08,923 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:08,924 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:08,925 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:08,925 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:08,947 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:08,947 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:08,948 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 11:22:08,967 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:09,015 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:09,015 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:09,017 INFO L146 ILogger]: Trace formula consists of 204 conjuncts, 24 conjunts are in the unsatisfiable core [2019-05-23 11:22:09,020 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:09,638 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 11:22:09,656 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:09,657 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2019-05-23 11:22:09,657 INFO L146 ILogger]: Interpolant automaton has 25 states [2019-05-23 11:22:09,657 INFO L146 ILogger]: Constructing interpolant automaton starting with 25 interpolants. [2019-05-23 11:22:09,657 INFO L146 ILogger]: CoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2019-05-23 11:22:09,658 INFO L146 ILogger]: Start difference. First operand 179 states and 188 transitions. Second operand 25 states. [2019-05-23 11:22:10,833 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:10,833 INFO L146 ILogger]: Finished difference Result 319 states and 338 transitions. [2019-05-23 11:22:10,833 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-05-23 11:22:10,834 INFO L146 ILogger]: Start accepts. Automaton has 25 states. Word has length 135 [2019-05-23 11:22:10,834 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:10,835 INFO L146 ILogger]: With dead ends: 319 [2019-05-23 11:22:10,835 INFO L146 ILogger]: Without dead ends: 216 [2019-05-23 11:22:10,837 INFO L146 ILogger]: 0 DeclaredPredicates, 156 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=718, Invalid=1444, Unknown=0, NotChecked=0, Total=2162 [2019-05-23 11:22:10,837 INFO L146 ILogger]: Start minimizeSevpa. Operand 216 states. [2019-05-23 11:22:10,840 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 216 to 185. [2019-05-23 11:22:10,840 INFO L146 ILogger]: Start removeUnreachable. Operand 185 states. [2019-05-23 11:22:10,840 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 185 states to 185 states and 194 transitions. [2019-05-23 11:22:10,841 INFO L146 ILogger]: Start accepts. Automaton has 185 states and 194 transitions. Word has length 135 [2019-05-23 11:22:10,841 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:10,841 INFO L146 ILogger]: Abstraction has 185 states and 194 transitions. [2019-05-23 11:22:10,841 INFO L146 ILogger]: Interpolant automaton has 25 states. [2019-05-23 11:22:10,841 INFO L146 ILogger]: Start isEmpty. Operand 185 states and 194 transitions. [2019-05-23 11:22:10,842 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 142 [2019-05-23 11:22:10,842 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:10,842 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 11:22:10,842 INFO L146 ILogger]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:10,843 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:10,843 INFO L146 ILogger]: Analyzing trace with hash 1848284383, now seen corresponding path program 15 times [2019-05-23 11:22:10,843 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:10,843 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:10,844 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:10,844 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:10,844 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:10,857 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:10,857 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:10,857 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 11:22:10,873 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:10,943 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2019-05-23 11:22:10,943 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:10,944 INFO L146 ILogger]: Trace formula consists of 164 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:22:10,946 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:11,048 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 11:22:11,067 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:11,067 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2019-05-23 11:22:11,067 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:22:11,068 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:22:11,068 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:11,068 INFO L146 ILogger]: Start difference. First operand 185 states and 194 transitions. Second operand 15 states. [2019-05-23 11:22:11,954 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:11,954 INFO L146 ILogger]: Finished difference Result 263 states and 277 transitions. [2019-05-23 11:22:11,954 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:22:11,955 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 141 [2019-05-23 11:22:11,955 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:11,957 INFO L146 ILogger]: With dead ends: 263 [2019-05-23 11:22:11,957 INFO L146 ILogger]: Without dead ends: 234 [2019-05-23 11:22:11,958 INFO L146 ILogger]: 0 DeclaredPredicates, 152 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=243, Invalid=459, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:22:11,958 INFO L146 ILogger]: Start minimizeSevpa. Operand 234 states. [2019-05-23 11:22:11,962 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 234 to 197. [2019-05-23 11:22:11,962 INFO L146 ILogger]: Start removeUnreachable. Operand 197 states. [2019-05-23 11:22:11,962 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 197 states to 197 states and 207 transitions. [2019-05-23 11:22:11,963 INFO L146 ILogger]: Start accepts. Automaton has 197 states and 207 transitions. Word has length 141 [2019-05-23 11:22:11,963 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:11,963 INFO L146 ILogger]: Abstraction has 197 states and 207 transitions. [2019-05-23 11:22:11,963 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:22:11,963 INFO L146 ILogger]: Start isEmpty. Operand 197 states and 207 transitions. [2019-05-23 11:22:11,964 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 149 [2019-05-23 11:22:11,964 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:11,964 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 11:22:11,965 INFO L146 ILogger]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:11,965 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:11,965 INFO L146 ILogger]: Analyzing trace with hash -1164155153, now seen corresponding path program 16 times [2019-05-23 11:22:11,965 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:11,965 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:11,966 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:11,966 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:11,966 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:11,980 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:11,980 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:11,980 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 11:22:11,997 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:22:12,140 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:22:12,140 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:12,142 INFO L146 ILogger]: Trace formula consists of 223 conjuncts, 26 conjunts are in the unsatisfiable core [2019-05-23 11:22:12,144 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:12,509 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 11:22:12,540 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:12,541 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2019-05-23 11:22:12,541 INFO L146 ILogger]: Interpolant automaton has 27 states [2019-05-23 11:22:12,542 INFO L146 ILogger]: Constructing interpolant automaton starting with 27 interpolants. [2019-05-23 11:22:12,542 INFO L146 ILogger]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:22:12,543 INFO L146 ILogger]: Start difference. First operand 197 states and 207 transitions. Second operand 27 states. [2019-05-23 11:22:13,626 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:13,627 INFO L146 ILogger]: Finished difference Result 349 states and 370 transitions. [2019-05-23 11:22:13,627 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-05-23 11:22:13,627 INFO L146 ILogger]: Start accepts. Automaton has 27 states. Word has length 148 [2019-05-23 11:22:13,628 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:13,629 INFO L146 ILogger]: With dead ends: 349 [2019-05-23 11:22:13,629 INFO L146 ILogger]: Without dead ends: 234 [2019-05-23 11:22:13,630 INFO L146 ILogger]: 0 DeclaredPredicates, 171 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=843, Invalid=1707, Unknown=0, NotChecked=0, Total=2550 [2019-05-23 11:22:13,631 INFO L146 ILogger]: Start minimizeSevpa. Operand 234 states. [2019-05-23 11:22:13,634 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 234 to 203. [2019-05-23 11:22:13,634 INFO L146 ILogger]: Start removeUnreachable. Operand 203 states. [2019-05-23 11:22:13,635 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 203 states to 203 states and 213 transitions. [2019-05-23 11:22:13,635 INFO L146 ILogger]: Start accepts. Automaton has 203 states and 213 transitions. Word has length 148 [2019-05-23 11:22:13,636 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:13,636 INFO L146 ILogger]: Abstraction has 203 states and 213 transitions. [2019-05-23 11:22:13,636 INFO L146 ILogger]: Interpolant automaton has 27 states. [2019-05-23 11:22:13,636 INFO L146 ILogger]: Start isEmpty. Operand 203 states and 213 transitions. [2019-05-23 11:22:13,637 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 155 [2019-05-23 11:22:13,637 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:13,637 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 11:22:13,637 INFO L146 ILogger]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:13,637 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:13,638 INFO L146 ILogger]: Analyzing trace with hash 240865579, now seen corresponding path program 17 times [2019-05-23 11:22:13,638 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:13,638 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:13,639 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:13,639 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:13,639 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:13,652 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:13,652 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:13,652 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 11:22:13,669 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:22:14,356 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2019-05-23 11:22:14,356 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:14,359 INFO L146 ILogger]: Trace formula consists of 231 conjuncts, 16 conjunts are in the unsatisfiable core [2019-05-23 11:22:14,362 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:14,652 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 11:22:14,673 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:14,673 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2019-05-23 11:22:14,673 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 11:22:14,673 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 11:22:14,674 INFO L146 ILogger]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:22:14,674 INFO L146 ILogger]: Start difference. First operand 203 states and 213 transitions. Second operand 17 states. [2019-05-23 11:22:14,962 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:14,962 INFO L146 ILogger]: Finished difference Result 281 states and 296 transitions. [2019-05-23 11:22:14,963 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-05-23 11:22:14,963 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 154 [2019-05-23 11:22:14,963 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:14,965 INFO L146 ILogger]: With dead ends: 281 [2019-05-23 11:22:14,965 INFO L146 ILogger]: Without dead ends: 252 [2019-05-23 11:22:14,966 INFO L146 ILogger]: 0 DeclaredPredicates, 167 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=318, Invalid=612, Unknown=0, NotChecked=0, Total=930 [2019-05-23 11:22:14,967 INFO L146 ILogger]: Start minimizeSevpa. Operand 252 states. [2019-05-23 11:22:14,970 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 252 to 215. [2019-05-23 11:22:14,971 INFO L146 ILogger]: Start removeUnreachable. Operand 215 states. [2019-05-23 11:22:14,971 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 215 states to 215 states and 226 transitions. [2019-05-23 11:22:14,971 INFO L146 ILogger]: Start accepts. Automaton has 215 states and 226 transitions. Word has length 154 [2019-05-23 11:22:14,972 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:14,972 INFO L146 ILogger]: Abstraction has 215 states and 226 transitions. [2019-05-23 11:22:14,972 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 11:22:14,972 INFO L146 ILogger]: Start isEmpty. Operand 215 states and 226 transitions. [2019-05-23 11:22:14,973 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 162 [2019-05-23 11:22:14,973 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:14,973 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 11:22:14,973 INFO L146 ILogger]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:14,973 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:14,974 INFO L146 ILogger]: Analyzing trace with hash -1204191965, now seen corresponding path program 18 times [2019-05-23 11:22:14,974 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:14,974 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:14,974 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:14,975 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:14,975 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:14,989 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:14,989 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:14,989 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:22:15,006 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:22:17,078 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2019-05-23 11:22:17,079 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:17,082 INFO L146 ILogger]: Trace formula consists of 242 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 11:22:17,084 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:17,584 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 11:22:17,604 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:17,604 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2019-05-23 11:22:17,605 INFO L146 ILogger]: Interpolant automaton has 19 states [2019-05-23 11:22:17,605 INFO L146 ILogger]: Constructing interpolant automaton starting with 19 interpolants. [2019-05-23 11:22:17,605 INFO L146 ILogger]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:22:17,606 INFO L146 ILogger]: Start difference. First operand 215 states and 226 transitions. Second operand 19 states. [2019-05-23 11:22:17,944 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:17,945 INFO L146 ILogger]: Finished difference Result 293 states and 309 transitions. [2019-05-23 11:22:17,947 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-05-23 11:22:17,947 INFO L146 ILogger]: Start accepts. Automaton has 19 states. Word has length 161 [2019-05-23 11:22:17,948 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:17,949 INFO L146 ILogger]: With dead ends: 293 [2019-05-23 11:22:17,949 INFO L146 ILogger]: Without dead ends: 264 [2019-05-23 11:22:17,949 INFO L146 ILogger]: 0 DeclaredPredicates, 176 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=403, Invalid=787, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 11:22:17,950 INFO L146 ILogger]: Start minimizeSevpa. Operand 264 states. [2019-05-23 11:22:17,953 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 264 to 227. [2019-05-23 11:22:17,953 INFO L146 ILogger]: Start removeUnreachable. Operand 227 states. [2019-05-23 11:22:17,954 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 227 states to 227 states and 239 transitions. [2019-05-23 11:22:17,954 INFO L146 ILogger]: Start accepts. Automaton has 227 states and 239 transitions. Word has length 161 [2019-05-23 11:22:17,954 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:17,955 INFO L146 ILogger]: Abstraction has 227 states and 239 transitions. [2019-05-23 11:22:17,955 INFO L146 ILogger]: Interpolant automaton has 19 states. [2019-05-23 11:22:17,955 INFO L146 ILogger]: Start isEmpty. Operand 227 states and 239 transitions. [2019-05-23 11:22:17,956 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 169 [2019-05-23 11:22:17,956 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:17,956 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 11:22:17,956 INFO L146 ILogger]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:17,956 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:17,957 INFO L146 ILogger]: Analyzing trace with hash 1296591403, now seen corresponding path program 19 times [2019-05-23 11:22:17,957 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:17,957 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:17,958 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:17,958 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:17,958 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:17,971 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:17,971 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:17,971 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 11:22:17,986 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:18,024 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:18,026 INFO L146 ILogger]: Trace formula consists of 253 conjuncts, 28 conjunts are in the unsatisfiable core [2019-05-23 11:22:18,029 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:18,777 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 11:22:18,795 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:18,795 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2019-05-23 11:22:18,796 INFO L146 ILogger]: Interpolant automaton has 29 states [2019-05-23 11:22:18,796 INFO L146 ILogger]: Constructing interpolant automaton starting with 29 interpolants. [2019-05-23 11:22:18,796 INFO L146 ILogger]: CoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2019-05-23 11:22:18,797 INFO L146 ILogger]: Start difference. First operand 227 states and 239 transitions. Second operand 29 states. [2019-05-23 11:22:19,448 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:19,449 INFO L146 ILogger]: Finished difference Result 403 states and 428 transitions. [2019-05-23 11:22:19,449 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-05-23 11:22:19,449 INFO L146 ILogger]: Start accepts. Automaton has 29 states. Word has length 168 [2019-05-23 11:22:19,450 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:19,451 INFO L146 ILogger]: With dead ends: 403 [2019-05-23 11:22:19,451 INFO L146 ILogger]: Without dead ends: 264 [2019-05-23 11:22:19,452 INFO L146 ILogger]: 0 DeclaredPredicates, 193 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=978, Invalid=1992, Unknown=0, NotChecked=0, Total=2970 [2019-05-23 11:22:19,453 INFO L146 ILogger]: Start minimizeSevpa. Operand 264 states. [2019-05-23 11:22:19,457 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 264 to 233. [2019-05-23 11:22:19,457 INFO L146 ILogger]: Start removeUnreachable. Operand 233 states. [2019-05-23 11:22:19,457 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 233 states to 233 states and 245 transitions. [2019-05-23 11:22:19,458 INFO L146 ILogger]: Start accepts. Automaton has 233 states and 245 transitions. Word has length 168 [2019-05-23 11:22:19,458 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:19,458 INFO L146 ILogger]: Abstraction has 233 states and 245 transitions. [2019-05-23 11:22:19,458 INFO L146 ILogger]: Interpolant automaton has 29 states. [2019-05-23 11:22:19,458 INFO L146 ILogger]: Start isEmpty. Operand 233 states and 245 transitions. [2019-05-23 11:22:19,459 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 175 [2019-05-23 11:22:19,459 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:19,460 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 11:22:19,460 INFO L146 ILogger]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:19,460 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:19,460 INFO L146 ILogger]: Analyzing trace with hash 440917607, now seen corresponding path program 20 times [2019-05-23 11:22:19,460 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:19,460 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:19,461 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:19,462 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:19,462 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:19,475 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:19,475 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:19,475 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 11:22:19,496 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:19,540 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:19,540 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:19,542 INFO L146 ILogger]: Trace formula consists of 261 conjuncts, 30 conjunts are in the unsatisfiable core [2019-05-23 11:22:19,545 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:21,269 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 11:22:21,287 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:21,288 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2019-05-23 11:22:21,288 INFO L146 ILogger]: Interpolant automaton has 31 states [2019-05-23 11:22:21,288 INFO L146 ILogger]: Constructing interpolant automaton starting with 31 interpolants. [2019-05-23 11:22:21,289 INFO L146 ILogger]: CoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2019-05-23 11:22:21,289 INFO L146 ILogger]: Start difference. First operand 233 states and 245 transitions. Second operand 31 states. [2019-05-23 11:22:22,016 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:22,017 INFO L146 ILogger]: Finished difference Result 409 states and 434 transitions. [2019-05-23 11:22:22,017 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-05-23 11:22:22,017 INFO L146 ILogger]: Start accepts. Automaton has 31 states. Word has length 174 [2019-05-23 11:22:22,018 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:22,019 INFO L146 ILogger]: With dead ends: 409 [2019-05-23 11:22:22,019 INFO L146 ILogger]: Without dead ends: 270 [2019-05-23 11:22:22,021 INFO L146 ILogger]: 0 DeclaredPredicates, 201 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1123, Invalid=2299, Unknown=0, NotChecked=0, Total=3422 [2019-05-23 11:22:22,021 INFO L146 ILogger]: Start minimizeSevpa. Operand 270 states. [2019-05-23 11:22:22,024 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 270 to 239. [2019-05-23 11:22:22,025 INFO L146 ILogger]: Start removeUnreachable. Operand 239 states. [2019-05-23 11:22:22,025 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 239 states to 239 states and 251 transitions. [2019-05-23 11:22:22,025 INFO L146 ILogger]: Start accepts. Automaton has 239 states and 251 transitions. Word has length 174 [2019-05-23 11:22:22,025 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:22,026 INFO L146 ILogger]: Abstraction has 239 states and 251 transitions. [2019-05-23 11:22:22,026 INFO L146 ILogger]: Interpolant automaton has 31 states. [2019-05-23 11:22:22,026 INFO L146 ILogger]: Start isEmpty. Operand 239 states and 251 transitions. [2019-05-23 11:22:22,027 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 181 [2019-05-23 11:22:22,027 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:22,027 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 11:22:22,027 INFO L146 ILogger]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:22,028 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:22,028 INFO L146 ILogger]: Analyzing trace with hash -1529465437, now seen corresponding path program 21 times [2019-05-23 11:22:22,028 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:22,028 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:22,029 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:22,029 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:22,029 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:22,043 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:22,043 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:22,043 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 11:22:22,060 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:22,278 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-05-23 11:22:22,278 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:22,280 INFO L146 ILogger]: Trace formula consists of 221 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 11:22:22,282 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:23,439 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 11:22:23,458 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:23,459 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2019-05-23 11:22:23,459 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 11:22:23,460 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 11:22:23,460 INFO L146 ILogger]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:22:23,460 INFO L146 ILogger]: Start difference. First operand 239 states and 251 transitions. Second operand 21 states. [2019-05-23 11:22:23,824 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:23,824 INFO L146 ILogger]: Finished difference Result 317 states and 334 transitions. [2019-05-23 11:22:23,824 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-05-23 11:22:23,825 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 180 [2019-05-23 11:22:23,825 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:23,827 INFO L146 ILogger]: With dead ends: 317 [2019-05-23 11:22:23,827 INFO L146 ILogger]: Without dead ends: 288 [2019-05-23 11:22:23,828 INFO L146 ILogger]: 0 DeclaredPredicates, 197 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=498, Invalid=984, Unknown=0, NotChecked=0, Total=1482 [2019-05-23 11:22:23,829 INFO L146 ILogger]: Start minimizeSevpa. Operand 288 states. [2019-05-23 11:22:23,832 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 288 to 251. [2019-05-23 11:22:23,832 INFO L146 ILogger]: Start removeUnreachable. Operand 251 states. [2019-05-23 11:22:23,833 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 251 states to 251 states and 264 transitions. [2019-05-23 11:22:23,833 INFO L146 ILogger]: Start accepts. Automaton has 251 states and 264 transitions. Word has length 180 [2019-05-23 11:22:23,834 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:23,834 INFO L146 ILogger]: Abstraction has 251 states and 264 transitions. [2019-05-23 11:22:23,834 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 11:22:23,834 INFO L146 ILogger]: Start isEmpty. Operand 251 states and 264 transitions. [2019-05-23 11:22:23,835 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 188 [2019-05-23 11:22:23,835 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:23,835 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 11:22:23,835 INFO L146 ILogger]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:23,836 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:23,836 INFO L146 ILogger]: Analyzing trace with hash 33759659, now seen corresponding path program 22 times [2019-05-23 11:22:23,836 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:23,836 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:23,837 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:23,837 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:23,837 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:23,849 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:23,850 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:23,850 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 11:22:23,866 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:22:24,146 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:22:24,146 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:24,149 INFO L146 ILogger]: Trace formula consists of 280 conjuncts, 32 conjunts are in the unsatisfiable core [2019-05-23 11:22:24,151 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:24,510 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 11:22:24,532 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:24,532 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2019-05-23 11:22:24,532 INFO L146 ILogger]: Interpolant automaton has 33 states [2019-05-23 11:22:24,533 INFO L146 ILogger]: Constructing interpolant automaton starting with 33 interpolants. [2019-05-23 11:22:24,533 INFO L146 ILogger]: CoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 11:22:24,533 INFO L146 ILogger]: Start difference. First operand 251 states and 264 transitions. Second operand 33 states. [2019-05-23 11:22:25,342 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:25,342 INFO L146 ILogger]: Finished difference Result 439 states and 466 transitions. [2019-05-23 11:22:25,342 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-05-23 11:22:25,342 INFO L146 ILogger]: Start accepts. Automaton has 33 states. Word has length 187 [2019-05-23 11:22:25,343 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:25,345 INFO L146 ILogger]: With dead ends: 439 [2019-05-23 11:22:25,345 INFO L146 ILogger]: Without dead ends: 288 [2019-05-23 11:22:25,347 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 11:22:25,348 INFO L146 ILogger]: Start minimizeSevpa. Operand 288 states. [2019-05-23 11:22:25,351 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 288 to 257. [2019-05-23 11:22:25,351 INFO L146 ILogger]: Start removeUnreachable. Operand 257 states. [2019-05-23 11:22:25,352 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 257 states to 257 states and 270 transitions. [2019-05-23 11:22:25,352 INFO L146 ILogger]: Start accepts. Automaton has 257 states and 270 transitions. Word has length 187 [2019-05-23 11:22:25,352 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:25,352 INFO L146 ILogger]: Abstraction has 257 states and 270 transitions. [2019-05-23 11:22:25,352 INFO L146 ILogger]: Interpolant automaton has 33 states. [2019-05-23 11:22:25,353 INFO L146 ILogger]: Start isEmpty. Operand 257 states and 270 transitions. [2019-05-23 11:22:25,353 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 194 [2019-05-23 11:22:25,354 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:25,354 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 11:22:25,354 INFO L146 ILogger]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:25,354 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:25,355 INFO L146 ILogger]: Analyzing trace with hash -575312913, now seen corresponding path program 23 times [2019-05-23 11:22:25,355 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:25,355 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:25,355 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:25,356 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:25,356 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:25,369 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:25,369 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:25,369 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 11:22:25,390 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:22:26,592 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2019-05-23 11:22:26,592 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:26,595 INFO L146 ILogger]: Trace formula consists of 288 conjuncts, 34 conjunts are in the unsatisfiable core [2019-05-23 11:22:26,597 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:26,969 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 11:22:26,990 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:26,990 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2019-05-23 11:22:26,991 INFO L146 ILogger]: Interpolant automaton has 35 states [2019-05-23 11:22:26,991 INFO L146 ILogger]: Constructing interpolant automaton starting with 35 interpolants. [2019-05-23 11:22:26,992 INFO L146 ILogger]: CoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 11:22:26,992 INFO L146 ILogger]: Start difference. First operand 257 states and 270 transitions. Second operand 35 states. [2019-05-23 11:22:27,752 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:27,753 INFO L146 ILogger]: Finished difference Result 445 states and 472 transitions. [2019-05-23 11:22:27,753 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-05-23 11:22:27,753 INFO L146 ILogger]: Start accepts. Automaton has 35 states. Word has length 193 [2019-05-23 11:22:27,754 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:27,755 INFO L146 ILogger]: With dead ends: 445 [2019-05-23 11:22:27,755 INFO L146 ILogger]: Without dead ends: 294 [2019-05-23 11:22:27,757 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 11:22:27,758 INFO L146 ILogger]: Start minimizeSevpa. Operand 294 states. [2019-05-23 11:22:27,760 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 294 to 263. [2019-05-23 11:22:27,760 INFO L146 ILogger]: Start removeUnreachable. Operand 263 states. [2019-05-23 11:22:27,761 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 263 states to 263 states and 276 transitions. [2019-05-23 11:22:27,761 INFO L146 ILogger]: Start accepts. Automaton has 263 states and 276 transitions. Word has length 193 [2019-05-23 11:22:27,761 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:27,761 INFO L146 ILogger]: Abstraction has 263 states and 276 transitions. [2019-05-23 11:22:27,762 INFO L146 ILogger]: Interpolant automaton has 35 states. [2019-05-23 11:22:27,762 INFO L146 ILogger]: Start isEmpty. Operand 263 states and 276 transitions. [2019-05-23 11:22:27,763 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 200 [2019-05-23 11:22:27,763 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:27,763 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 11:22:27,763 INFO L146 ILogger]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:27,764 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:27,764 INFO L146 ILogger]: Analyzing trace with hash 1177547571, now seen corresponding path program 24 times [2019-05-23 11:22:27,764 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:27,764 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:27,765 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:27,765 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:27,765 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:27,778 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:27,778 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:27,778 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 11:22:27,797 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE