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/reducercommutativity/avg05_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:22:49,455 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:22:49,457 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:22:49,469 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:22:49,469 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:22:49,470 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:22:49,472 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:22:49,473 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:22:49,475 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:22:49,476 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:22:49,477 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:22:49,477 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:22:49,478 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:22:49,479 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:22:49,480 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:22:49,481 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:22:49,482 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:22:49,484 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:22:49,486 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:22:49,488 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:22:49,489 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:22:49,490 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:22:49,493 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:22:49,493 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:22:49,497 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:22:49,498 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:22:49,500 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:22:49,501 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:22:49,501 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:22:49,502 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:22:49,503 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:22:49,504 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:22:49,506 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:22:49,507 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:22:49,507 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:22:49,507 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:22:49,508 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:22:49,509 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:22:49,509 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:22:49,510 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:22:49,525 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:22:49,526 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:22:49,527 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:22:49,527 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:22:49,527 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:22:49,527 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:22:49,528 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:22:49,528 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:22:49,528 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:22:49,528 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:22:49,528 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:22:49,529 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:22:49,529 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:22:49,529 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:22:49,529 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:22:49,529 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:22:49,529 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:22:49,530 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:22:49,530 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:22:49,530 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:22:49,530 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:22:49,530 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:22:49,531 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:22:49,531 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:22:49,531 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:22:49,531 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:22:49,531 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:22:49,534 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:22:49,534 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 11:22:49,566 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:22:49,579 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:22:49,582 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:22:49,584 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:22:49,584 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:22:49,585 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/reducercommutativity/avg05_true-unreach-call_true-termination.i [2019-05-23 11:22:49,647 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b76094bd/497530543c0b4f5893ca13d759085970/FLAGecfd03640 [2019-05-23 11:22:50,077 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:22:50,078 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/reducercommutativity/avg05_true-unreach-call_true-termination.i [2019-05-23 11:22:50,085 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b76094bd/497530543c0b4f5893ca13d759085970/FLAGecfd03640 [2019-05-23 11:22:50,437 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b76094bd/497530543c0b4f5893ca13d759085970 [2019-05-23 11:22:50,446 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:22:50,447 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:22:50,448 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:22:50,449 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:22:50,452 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:22:50,453 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:22:50" (1/1) ... [2019-05-23 11:22:50,456 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea10059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50, skipping insertion in model container [2019-05-23 11:22:50,456 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:22:50" (1/1) ... [2019-05-23 11:22:50,464 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:22:50,483 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:22:50,683 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:22:50,701 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:22:50,737 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:22:50,759 INFO L146 ILogger]: Completed translation [2019-05-23 11:22:50,760 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50 WrapperNode [2019-05-23 11:22:50,760 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:22:50,761 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:22:50,762 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:22:50,762 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:22:50,775 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50" (1/1) ... [2019-05-23 11:22:50,786 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50" (1/1) ... [2019-05-23 11:22:50,828 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:22:50,828 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:22:50,828 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:22:50,830 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:22:50,841 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50" (1/1) ... [2019-05-23 11:22:50,842 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50" (1/1) ... [2019-05-23 11:22:50,973 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50" (1/1) ... [2019-05-23 11:22:50,973 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50" (1/1) ... [2019-05-23 11:22:50,985 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50" (1/1) ... [2019-05-23 11:22:50,993 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50" (1/1) ... [2019-05-23 11:22:51,001 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50" (1/1) ... [2019-05-23 11:22:51,007 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:22:51,008 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:22:51,008 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:22:51,008 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:22:51,009 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50" (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 11:22:51,067 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:22:51,067 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:22:51,067 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:22:51,067 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:22:51,067 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:22:51,068 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:22:51,647 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:22:51,647 INFO L146 ILogger]: Removed 15 assume(true) statements. [2019-05-23 11:22:51,649 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:22:51 BoogieIcfgContainer [2019-05-23 11:22:51,649 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:22:51,650 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:22:51,650 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:22:51,653 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:22:51,653 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:22:50" (1/3) ... [2019-05-23 11:22:51,654 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd0d3e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:22:51, skipping insertion in model container [2019-05-23 11:22:51,654 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:50" (2/3) ... [2019-05-23 11:22:51,655 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd0d3e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:22:51, skipping insertion in model container [2019-05-23 11:22:51,655 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:22:51" (3/3) ... [2019-05-23 11:22:51,657 INFO L146 ILogger]: Analyzing ICFG avg05_true-unreach-call_true-termination.i [2019-05-23 11:22:51,666 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:22:51,675 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:22:51,691 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:22:51,722 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:22:51,723 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:22:51,723 INFO L146 ILogger]: Hoare is true [2019-05-23 11:22:51,723 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:22:51,724 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:22:51,724 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:22:51,724 INFO L146 ILogger]: Difference is false [2019-05-23 11:22:51,724 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:22:51,725 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:22:51,744 INFO L146 ILogger]: Start isEmpty. Operand 105 states. [2019-05-23 11:22:51,752 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 69 [2019-05-23 11:22:51,752 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:51,753 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:51,755 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:51,760 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:51,760 INFO L146 ILogger]: Analyzing trace with hash -503519154, now seen corresponding path program 1 times [2019-05-23 11:22:51,761 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:51,762 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:51,799 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:51,799 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:51,799 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:51,847 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:51,959 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 11:22:51,961 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:51,963 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:22:51,967 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:22:51,981 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:22:51,982 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:22:51,984 INFO L146 ILogger]: Start difference. First operand 105 states. Second operand 3 states. [2019-05-23 11:22:52,088 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:52,088 INFO L146 ILogger]: Finished difference Result 199 states and 219 transitions. [2019-05-23 11:22:52,089 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:22:52,090 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 68 [2019-05-23 11:22:52,091 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:52,101 INFO L146 ILogger]: With dead ends: 199 [2019-05-23 11:22:52,101 INFO L146 ILogger]: Without dead ends: 105 [2019-05-23 11:22:52,105 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 11:22:52,123 INFO L146 ILogger]: Start minimizeSevpa. Operand 105 states. [2019-05-23 11:22:52,145 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 105 to 100. [2019-05-23 11:22:52,147 INFO L146 ILogger]: Start removeUnreachable. Operand 100 states. [2019-05-23 11:22:52,149 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 100 states to 100 states and 104 transitions. [2019-05-23 11:22:52,150 INFO L146 ILogger]: Start accepts. Automaton has 100 states and 104 transitions. Word has length 68 [2019-05-23 11:22:52,151 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:52,151 INFO L146 ILogger]: Abstraction has 100 states and 104 transitions. [2019-05-23 11:22:52,151 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:22:52,151 INFO L146 ILogger]: Start isEmpty. Operand 100 states and 104 transitions. [2019-05-23 11:22:52,154 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 76 [2019-05-23 11:22:52,154 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:52,154 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:52,155 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:52,155 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:52,155 INFO L146 ILogger]: Analyzing trace with hash -1483383517, now seen corresponding path program 1 times [2019-05-23 11:22:52,156 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:52,156 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:52,157 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:52,157 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:52,157 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:52,185 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:52,334 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:52,335 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:52,335 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 11:22:52,352 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:52,406 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:52,408 INFO L146 ILogger]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:22:52,417 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:52,553 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:22:52,585 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:52,585 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:22:52,589 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:22:52,590 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:22:52,590 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:22:52,590 INFO L146 ILogger]: Start difference. First operand 100 states and 104 transitions. Second operand 6 states. [2019-05-23 11:22:53,012 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:53,012 INFO L146 ILogger]: Finished difference Result 212 states and 223 transitions. [2019-05-23 11:22:53,013 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:22:53,013 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 75 [2019-05-23 11:22:53,013 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:53,015 INFO L146 ILogger]: With dead ends: 212 [2019-05-23 11:22:53,015 INFO L146 ILogger]: Without dead ends: 130 [2019-05-23 11:22:53,017 INFO L146 ILogger]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:22:53,017 INFO L146 ILogger]: Start minimizeSevpa. Operand 130 states. [2019-05-23 11:22:53,026 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 130 to 110. [2019-05-23 11:22:53,026 INFO L146 ILogger]: Start removeUnreachable. Operand 110 states. [2019-05-23 11:22:53,028 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2019-05-23 11:22:53,029 INFO L146 ILogger]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 75 [2019-05-23 11:22:53,029 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:53,029 INFO L146 ILogger]: Abstraction has 110 states and 114 transitions. [2019-05-23 11:22:53,029 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:22:53,030 INFO L146 ILogger]: Start isEmpty. Operand 110 states and 114 transitions. [2019-05-23 11:22:53,048 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 104 [2019-05-23 11:22:53,049 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:53,049 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:53,049 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:53,050 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:53,050 INFO L146 ILogger]: Analyzing trace with hash -483601032, now seen corresponding path program 1 times [2019-05-23 11:22:53,050 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:53,050 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:53,051 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:53,053 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:53,053 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:53,076 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:53,146 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-05-23 11:22:53,146 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:53,146 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 11:22:53,160 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:53,203 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:53,205 INFO L146 ILogger]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:22:53,209 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:53,267 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-05-23 11:22:53,287 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:53,288 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:22:53,289 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:22:53,289 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:22:53,289 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:22:53,290 INFO L146 ILogger]: Start difference. First operand 110 states and 114 transitions. Second operand 6 states. [2019-05-23 11:22:53,837 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:53,837 INFO L146 ILogger]: Finished difference Result 221 states and 231 transitions. [2019-05-23 11:22:53,838 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:22:53,838 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 103 [2019-05-23 11:22:53,839 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:53,841 INFO L146 ILogger]: With dead ends: 221 [2019-05-23 11:22:53,842 INFO L146 ILogger]: Without dead ends: 152 [2019-05-23 11:22:53,842 INFO L146 ILogger]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:22:53,843 INFO L146 ILogger]: Start minimizeSevpa. Operand 152 states. [2019-05-23 11:22:53,852 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 152 to 132. [2019-05-23 11:22:53,852 INFO L146 ILogger]: Start removeUnreachable. Operand 132 states. [2019-05-23 11:22:53,856 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 132 states to 132 states and 136 transitions. [2019-05-23 11:22:53,857 INFO L146 ILogger]: Start accepts. Automaton has 132 states and 136 transitions. Word has length 103 [2019-05-23 11:22:53,857 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:53,857 INFO L146 ILogger]: Abstraction has 132 states and 136 transitions. [2019-05-23 11:22:53,858 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:22:53,858 INFO L146 ILogger]: Start isEmpty. Operand 132 states and 136 transitions. [2019-05-23 11:22:53,863 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 132 [2019-05-23 11:22:53,863 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:53,863 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:53,864 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:53,864 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:53,864 INFO L146 ILogger]: Analyzing trace with hash 46998236, now seen corresponding path program 1 times [2019-05-23 11:22:53,864 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:53,864 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:53,866 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:53,866 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:53,866 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:53,928 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:54,064 INFO L146 ILogger]: Checked inductivity of 37 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-05-23 11:22:54,065 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:54,065 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:54,078 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:54,131 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:54,134 INFO L146 ILogger]: Trace formula consists of 219 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:54,144 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:54,488 INFO L146 ILogger]: Checked inductivity of 37 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-05-23 11:22:54,507 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:54,507 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2019-05-23 11:22:54,508 INFO L146 ILogger]: Interpolant automaton has 10 states [2019-05-23 11:22:54,508 INFO L146 ILogger]: Constructing interpolant automaton starting with 10 interpolants. [2019-05-23 11:22:54,509 INFO L146 ILogger]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:22:54,509 INFO L146 ILogger]: Start difference. First operand 132 states and 136 transitions. Second operand 10 states. [2019-05-23 11:22:55,050 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:55,050 INFO L146 ILogger]: Finished difference Result 263 states and 272 transitions. [2019-05-23 11:22:55,051 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:22:55,051 INFO L146 ILogger]: Start accepts. Automaton has 10 states. Word has length 131 [2019-05-23 11:22:55,051 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:55,052 INFO L146 ILogger]: With dead ends: 263 [2019-05-23 11:22:55,052 INFO L146 ILogger]: Without dead ends: 156 [2019-05-23 11:22:55,053 INFO L146 ILogger]: 0 DeclaredPredicates, 141 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:22:55,054 INFO L146 ILogger]: Start minimizeSevpa. Operand 156 states. [2019-05-23 11:22:55,063 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 156 to 146. [2019-05-23 11:22:55,063 INFO L146 ILogger]: Start removeUnreachable. Operand 146 states. [2019-05-23 11:22:55,064 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2019-05-23 11:22:55,064 INFO L146 ILogger]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 131 [2019-05-23 11:22:55,064 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:55,065 INFO L146 ILogger]: Abstraction has 146 states and 150 transitions. [2019-05-23 11:22:55,065 INFO L146 ILogger]: Interpolant automaton has 10 states. [2019-05-23 11:22:55,065 INFO L146 ILogger]: Start isEmpty. Operand 146 states and 150 transitions. [2019-05-23 11:22:55,067 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 146 [2019-05-23 11:22:55,067 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:55,068 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:55,068 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:55,068 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:55,068 INFO L146 ILogger]: Analyzing trace with hash -1200733213, now seen corresponding path program 2 times [2019-05-23 11:22:55,069 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:55,069 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:55,070 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:55,070 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:55,070 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:55,106 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:55,275 INFO L146 ILogger]: Checked inductivity of 60 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-05-23 11:22:55,275 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:55,275 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:55,284 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:55,343 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:55,343 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:55,345 INFO L146 ILogger]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:22:55,350 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:55,576 INFO L146 ILogger]: Checked inductivity of 60 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-05-23 11:22:55,595 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:55,595 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-05-23 11:22:55,596 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:22:55,596 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:22:55,596 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:55,597 INFO L146 ILogger]: Start difference. First operand 146 states and 150 transitions. Second operand 11 states. [2019-05-23 11:22:55,773 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:55,774 INFO L146 ILogger]: Finished difference Result 272 states and 280 transitions. [2019-05-23 11:22:55,774 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:22:55,774 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 145 [2019-05-23 11:22:55,774 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:55,775 INFO L146 ILogger]: With dead ends: 272 [2019-05-23 11:22:55,775 INFO L146 ILogger]: Without dead ends: 158 [2019-05-23 11:22:55,777 INFO L146 ILogger]: 0 DeclaredPredicates, 159 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:22:55,777 INFO L146 ILogger]: Start minimizeSevpa. Operand 158 states. [2019-05-23 11:22:55,785 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 158 to 153. [2019-05-23 11:22:55,785 INFO L146 ILogger]: Start removeUnreachable. Operand 153 states. [2019-05-23 11:22:55,786 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 153 states to 153 states and 157 transitions. [2019-05-23 11:22:55,786 INFO L146 ILogger]: Start accepts. Automaton has 153 states and 157 transitions. Word has length 145 [2019-05-23 11:22:55,786 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:55,786 INFO L146 ILogger]: Abstraction has 153 states and 157 transitions. [2019-05-23 11:22:55,787 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:22:55,787 INFO L146 ILogger]: Start isEmpty. Operand 153 states and 157 transitions. [2019-05-23 11:22:55,789 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 153 [2019-05-23 11:22:55,789 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:55,789 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:55,789 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:55,790 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:55,790 INFO L146 ILogger]: Analyzing trace with hash 104748121, now seen corresponding path program 3 times [2019-05-23 11:22:55,790 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:55,790 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:55,791 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:55,791 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:55,791 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:55,822 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:55,978 INFO L146 ILogger]: Checked inductivity of 82 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-05-23 11:22:55,978 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:55,978 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:55,988 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:56,032 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:22:56,033 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:56,034 INFO L146 ILogger]: Trace formula consists of 229 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:56,037 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:56,134 INFO L146 ILogger]: Checked inductivity of 82 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-05-23 11:22:56,154 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:56,154 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 16 [2019-05-23 11:22:56,154 INFO L146 ILogger]: Interpolant automaton has 16 states [2019-05-23 11:22:56,155 INFO L146 ILogger]: Constructing interpolant automaton starting with 16 interpolants. [2019-05-23 11:22:56,155 INFO L146 ILogger]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:22:56,155 INFO L146 ILogger]: Start difference. First operand 153 states and 157 transitions. Second operand 16 states. [2019-05-23 11:22:56,721 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:56,721 INFO L146 ILogger]: Finished difference Result 310 states and 321 transitions. [2019-05-23 11:22:56,721 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-05-23 11:22:56,721 INFO L146 ILogger]: Start accepts. Automaton has 16 states. Word has length 152 [2019-05-23 11:22:56,722 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:56,724 INFO L146 ILogger]: With dead ends: 310 [2019-05-23 11:22:56,724 INFO L146 ILogger]: Without dead ends: 196 [2019-05-23 11:22:56,725 INFO L146 ILogger]: 0 DeclaredPredicates, 178 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2019-05-23 11:22:56,726 INFO L146 ILogger]: Start minimizeSevpa. Operand 196 states. [2019-05-23 11:22:56,733 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 196 to 181. [2019-05-23 11:22:56,733 INFO L146 ILogger]: Start removeUnreachable. Operand 181 states. [2019-05-23 11:22:56,734 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 181 states to 181 states and 185 transitions. [2019-05-23 11:22:56,734 INFO L146 ILogger]: Start accepts. Automaton has 181 states and 185 transitions. Word has length 152 [2019-05-23 11:22:56,735 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:56,735 INFO L146 ILogger]: Abstraction has 181 states and 185 transitions. [2019-05-23 11:22:56,735 INFO L146 ILogger]: Interpolant automaton has 16 states. [2019-05-23 11:22:56,735 INFO L146 ILogger]: Start isEmpty. Operand 181 states and 185 transitions. [2019-05-23 11:22:56,737 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 181 [2019-05-23 11:22:56,738 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:56,738 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:56,738 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:56,739 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:56,739 INFO L146 ILogger]: Analyzing trace with hash -9292050, now seen corresponding path program 4 times [2019-05-23 11:22:56,739 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:56,739 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:56,740 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:56,740 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:56,740 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:56,771 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:57,527 INFO L146 ILogger]: Checked inductivity of 156 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-05-23 11:22:57,527 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:57,527 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:57,536 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:22:57,586 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:22:57,586 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:57,587 INFO L146 ILogger]: Trace formula consists of 261 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:22:57,590 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:57,655 INFO L146 ILogger]: Checked inductivity of 156 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-05-23 11:22:57,673 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:57,674 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-05-23 11:22:57,674 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:22:57,674 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:22:57,675 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:57,675 INFO L146 ILogger]: Start difference. First operand 181 states and 185 transitions. Second operand 11 states. [2019-05-23 11:22:57,917 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:57,918 INFO L146 ILogger]: Finished difference Result 322 states and 331 transitions. [2019-05-23 11:22:57,919 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:22:57,919 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 180 [2019-05-23 11:22:57,920 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:57,921 INFO L146 ILogger]: With dead ends: 322 [2019-05-23 11:22:57,921 INFO L146 ILogger]: Without dead ends: 217 [2019-05-23 11:22:57,922 INFO L146 ILogger]: 0 DeclaredPredicates, 194 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:22:57,922 INFO L146 ILogger]: Start minimizeSevpa. Operand 217 states. [2019-05-23 11:22:57,929 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 217 to 202. [2019-05-23 11:22:57,929 INFO L146 ILogger]: Start removeUnreachable. Operand 202 states. [2019-05-23 11:22:57,930 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 202 states to 202 states and 206 transitions. [2019-05-23 11:22:57,930 INFO L146 ILogger]: Start accepts. Automaton has 202 states and 206 transitions. Word has length 180 [2019-05-23 11:22:57,930 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:57,931 INFO L146 ILogger]: Abstraction has 202 states and 206 transitions. [2019-05-23 11:22:57,931 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:22:57,931 INFO L146 ILogger]: Start isEmpty. Operand 202 states and 206 transitions. [2019-05-23 11:22:57,938 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 202 [2019-05-23 11:22:57,938 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:57,938 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:57,939 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:57,939 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:57,939 INFO L146 ILogger]: Analyzing trace with hash -1964240509, now seen corresponding path program 5 times [2019-05-23 11:22:57,939 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:57,939 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:57,942 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:57,943 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:57,943 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:57,971 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:58,174 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 11:22:58,174 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:58,174 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:58,183 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:22:58,291 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-05-23 11:22:58,291 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:58,293 INFO L146 ILogger]: Trace formula consists of 325 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:22:58,296 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:58,372 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 11:22:58,390 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:58,391 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2019-05-23 11:22:58,391 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:22:58,391 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:22:58,392 INFO L146 ILogger]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:58,392 INFO L146 ILogger]: Start difference. First operand 202 states and 206 transitions. Second operand 13 states. [2019-05-23 11:22:58,923 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:58,923 INFO L146 ILogger]: Finished difference Result 342 states and 351 transitions. [2019-05-23 11:22:58,923 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:22:58,924 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 201 [2019-05-23 11:22:58,924 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:58,927 INFO L146 ILogger]: With dead ends: 342 [2019-05-23 11:22:58,927 INFO L146 ILogger]: Without dead ends: 223 [2019-05-23 11:22:58,927 INFO L146 ILogger]: 0 DeclaredPredicates, 227 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:22:58,928 INFO L146 ILogger]: Start minimizeSevpa. Operand 223 states. [2019-05-23 11:22:58,933 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 223 to 223. [2019-05-23 11:22:58,933 INFO L146 ILogger]: Start removeUnreachable. Operand 223 states. [2019-05-23 11:22:58,934 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 223 states to 223 states and 227 transitions. [2019-05-23 11:22:58,934 INFO L146 ILogger]: Start accepts. Automaton has 223 states and 227 transitions. Word has length 201 [2019-05-23 11:22:58,934 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:58,935 INFO L146 ILogger]: Abstraction has 223 states and 227 transitions. [2019-05-23 11:22:58,935 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:22:58,935 INFO L146 ILogger]: Start isEmpty. Operand 223 states and 227 transitions. [2019-05-23 11:22:58,937 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 223 [2019-05-23 11:22:58,937 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:58,938 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:58,938 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:58,938 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:58,938 INFO L146 ILogger]: Analyzing trace with hash 714971662, now seen corresponding path program 6 times [2019-05-23 11:22:58,938 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:58,939 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:58,939 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:58,940 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:58,940 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:58,971 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:59,134 INFO L146 ILogger]: Checked inductivity of 309 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2019-05-23 11:22:59,135 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:59,135 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:59,144 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:22:59,227 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2019-05-23 11:22:59,228 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:59,229 INFO L146 ILogger]: Trace formula consists of 315 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:59,242 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:59,324 INFO L146 ILogger]: Checked inductivity of 309 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2019-05-23 11:22:59,342 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:59,343 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2019-05-23 11:22:59,343 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:22:59,344 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:22:59,344 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:22:59,344 INFO L146 ILogger]: Start difference. First operand 223 states and 227 transitions. Second operand 9 states. [2019-05-23 11:22:59,447 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:59,447 INFO L146 ILogger]: Finished difference Result 288 states and 293 transitions. [2019-05-23 11:22:59,447 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:22:59,448 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 222 [2019-05-23 11:22:59,448 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:59,450 INFO L146 ILogger]: With dead ends: 288 [2019-05-23 11:22:59,450 INFO L146 ILogger]: Without dead ends: 235 [2019-05-23 11:22:59,451 INFO L146 ILogger]: 0 DeclaredPredicates, 232 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:59,452 INFO L146 ILogger]: Start minimizeSevpa. Operand 235 states. [2019-05-23 11:22:59,456 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 235 to 230. [2019-05-23 11:22:59,456 INFO L146 ILogger]: Start removeUnreachable. Operand 230 states. [2019-05-23 11:22:59,457 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 230 states to 230 states and 234 transitions. [2019-05-23 11:22:59,457 INFO L146 ILogger]: Start accepts. Automaton has 230 states and 234 transitions. Word has length 222 [2019-05-23 11:22:59,458 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:59,458 INFO L146 ILogger]: Abstraction has 230 states and 234 transitions. [2019-05-23 11:22:59,458 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:22:59,458 INFO L146 ILogger]: Start isEmpty. Operand 230 states and 234 transitions. [2019-05-23 11:22:59,459 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 230 [2019-05-23 11:22:59,459 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:59,460 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:59,460 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:59,460 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:59,460 INFO L146 ILogger]: Analyzing trace with hash 1877950841, now seen corresponding path program 7 times [2019-05-23 11:22:59,460 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:59,461 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:59,461 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:59,462 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:59,462 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:59,491 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:00,006 INFO L146 ILogger]: Checked inductivity of 324 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2019-05-23 11:23:00,007 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:00,007 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:23:00,015 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:00,076 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:00,077 INFO L146 ILogger]: Trace formula consists of 368 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:23:00,081 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:00,335 INFO L146 ILogger]: Checked inductivity of 324 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2019-05-23 11:23:00,353 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:00,353 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-05-23 11:23:00,355 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:23:00,355 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:23:00,355 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:23:00,355 INFO L146 ILogger]: Start difference. First operand 230 states and 234 transitions. Second operand 11 states. [2019-05-23 11:23:00,483 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:00,484 INFO L146 ILogger]: Finished difference Result 290 states and 295 transitions. [2019-05-23 11:23:00,484 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:23:00,484 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 229 [2019-05-23 11:23:00,485 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:00,485 INFO L146 ILogger]: With dead ends: 290 [2019-05-23 11:23:00,486 INFO L146 ILogger]: Without dead ends: 237 [2019-05-23 11:23:00,486 INFO L146 ILogger]: 0 DeclaredPredicates, 243 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:23:00,486 INFO L146 ILogger]: Start minimizeSevpa. Operand 237 states. [2019-05-23 11:23:00,491 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 237 to 237. [2019-05-23 11:23:00,491 INFO L146 ILogger]: Start removeUnreachable. Operand 237 states. [2019-05-23 11:23:00,492 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 237 states to 237 states and 241 transitions. [2019-05-23 11:23:00,492 INFO L146 ILogger]: Start accepts. Automaton has 237 states and 241 transitions. Word has length 229 [2019-05-23 11:23:00,493 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:00,493 INFO L146 ILogger]: Abstraction has 237 states and 241 transitions. [2019-05-23 11:23:00,493 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:23:00,493 INFO L146 ILogger]: Start isEmpty. Operand 237 states and 241 transitions. [2019-05-23 11:23:00,494 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 237 [2019-05-23 11:23:00,494 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:00,495 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:23:00,495 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:00,495 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:00,495 INFO L146 ILogger]: Analyzing trace with hash 216103854, now seen corresponding path program 8 times [2019-05-23 11:23:00,495 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:00,495 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:00,496 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:00,496 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:00,496 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:01,356 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:05,858 ERROR L146 ILogger]: Interpolant 91 not inductive: (Check returned sat) [2019-05-23 11:23:06,543 ERROR L146 ILogger]: Interpolant 95 not inductive: (Check returned sat) [2019-05-23 11:23:10,834 ERROR L146 ILogger]: Interpolant 102 not inductive: (Check returned sat) [2019-05-23 11:23:12,553 ERROR L146 ILogger]: Interpolant 112 not inductive: (Check returned sat) [2019-05-23 11:23:12,806 ERROR L146 ILogger]: Interpolant 114 not inductive: (Check returned sat) [2019-05-23 11:23:12,986 ERROR L146 ILogger]: Interpolant 115 not inductive: (Check returned sat) [2019-05-23 11:23:16,286 ERROR L146 ILogger]: Interpolant 122 not inductive: (Check returned sat) [2019-05-23 11:23:17,168 ERROR L146 ILogger]: Interpolant 125 not inductive: (Check returned sat) [2019-05-23 11:23:18,533 ERROR L146 ILogger]: Interpolant 128 not inductive: (Check returned sat) [2019-05-23 11:23:18,701 ERROR L146 ILogger]: Interpolant 132 not inductive: (Check returned sat) [2019-05-23 11:23:18,931 ERROR L146 ILogger]: Interpolant 133 not inductive: (Check returned sat) [2019-05-23 11:23:25,666 ERROR L146 ILogger]: Interpolant 140 not inductive: (Check returned sat) [2019-05-23 11:23:32,467 ERROR L146 ILogger]: Interpolant 159 not inductive: (Check returned sat) [2019-05-23 11:23:33,293 ERROR L146 ILogger]: Interpolant 163 not inductive: (Check returned sat) [2019-05-23 11:23:35,666 ERROR L146 ILogger]: Interpolant 170 not inductive: (Check returned sat) [2019-05-23 11:23:36,453 ERROR L146 ILogger]: Interpolant 173 not inductive: (Check returned sat)