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/sep05_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:23:52,479 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:23:52,481 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:23:52,495 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:23:52,495 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:23:52,496 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:23:52,497 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:23:52,500 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:23:52,507 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:23:52,508 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:23:52,512 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:23:52,512 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:23:52,515 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:23:52,516 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:23:52,517 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:23:52,522 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:23:52,523 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:23:52,525 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:23:52,529 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:23:52,535 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:23:52,537 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:23:52,540 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:23:52,543 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:23:52,544 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:23:52,545 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:23:52,546 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:23:52,546 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:23:52,548 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:23:52,549 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:23:52,549 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:23:52,550 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:23:52,551 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:23:52,553 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:23:52,554 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:23:52,554 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:23:52,554 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:23:52,555 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:23:52,556 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:23:52,557 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:23:52,557 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:23:52,583 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:23:52,583 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:23:52,584 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:23:52,585 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:23:52,585 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:23:52,585 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:23:52,585 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:23:52,585 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:23:52,586 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:23:52,586 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:23:52,586 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:23:52,586 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:23:52,586 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:23:52,587 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:23:52,587 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:23:52,587 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:23:52,587 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:23:52,587 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:23:52,588 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:23:52,588 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:23:52,588 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:23:52,588 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:23:52,588 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:23:52,589 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:23:52,589 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:23:52,589 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:23:52,589 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:23:52,589 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:23:52,590 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 11:23:52,632 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:23:52,648 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:23:52,652 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:23:52,653 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:23:52,653 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:23:52,654 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/reducercommutativity/sep05_true-unreach-call_true-termination.i [2019-05-23 11:23:52,718 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b4155613/65a714718cd242d39a8dc79fb20fd3d8/FLAG125950ac6 [2019-05-23 11:23:53,094 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:23:53,094 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/reducercommutativity/sep05_true-unreach-call_true-termination.i [2019-05-23 11:23:53,100 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b4155613/65a714718cd242d39a8dc79fb20fd3d8/FLAG125950ac6 [2019-05-23 11:23:53,497 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b4155613/65a714718cd242d39a8dc79fb20fd3d8 [2019-05-23 11:23:53,506 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:23:53,507 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:23:53,508 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:23:53,508 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:23:53,512 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:23:53,513 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:23:53" (1/1) ... [2019-05-23 11:23:53,515 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b597a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53, skipping insertion in model container [2019-05-23 11:23:53,516 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:23:53" (1/1) ... [2019-05-23 11:23:53,523 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:23:53,543 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:23:53,730 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:23:53,739 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:23:53,764 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:23:53,781 INFO L146 ILogger]: Completed translation [2019-05-23 11:23:53,781 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53 WrapperNode [2019-05-23 11:23:53,782 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:23:53,782 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:23:53,783 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:23:53,783 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:23:53,793 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53" (1/1) ... [2019-05-23 11:23:53,802 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53" (1/1) ... [2019-05-23 11:23:53,832 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:23:53,835 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:23:53,835 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:23:53,835 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:23:53,847 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53" (1/1) ... [2019-05-23 11:23:53,847 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53" (1/1) ... [2019-05-23 11:23:53,850 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53" (1/1) ... [2019-05-23 11:23:53,850 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53" (1/1) ... [2019-05-23 11:23:53,857 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53" (1/1) ... [2019-05-23 11:23:53,945 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53" (1/1) ... [2019-05-23 11:23:53,946 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53" (1/1) ... [2019-05-23 11:23:53,949 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:23:53,950 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:23:53,950 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:23:53,950 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:23:53,951 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53" (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 11:23:54,000 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:23:54,001 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:23:54,001 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:23:54,001 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:23:54,001 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:23:54,001 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:23:54,669 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:23:54,669 INFO L146 ILogger]: Removed 15 assume(true) statements. [2019-05-23 11:23:54,670 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:23:54 BoogieIcfgContainer [2019-05-23 11:23:54,671 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:23:54,671 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:23:54,672 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:23:54,674 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:23:54,675 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:23:53" (1/3) ... [2019-05-23 11:23:54,676 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2512d8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:23:54, skipping insertion in model container [2019-05-23 11:23:54,676 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:23:53" (2/3) ... [2019-05-23 11:23:54,676 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2512d8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:23:54, skipping insertion in model container [2019-05-23 11:23:54,676 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:23:54" (3/3) ... [2019-05-23 11:23:54,678 INFO L146 ILogger]: Analyzing ICFG sep05_true-unreach-call_true-termination.i [2019-05-23 11:23:54,687 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:23:54,694 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:23:54,705 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:23:54,735 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:23:54,735 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:23:54,735 INFO L146 ILogger]: Hoare is true [2019-05-23 11:23:54,736 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:23:54,736 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:23:54,736 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:23:54,736 INFO L146 ILogger]: Difference is false [2019-05-23 11:23:54,736 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:23:54,736 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:23:54,752 INFO L146 ILogger]: Start isEmpty. Operand 120 states. [2019-05-23 11:23:54,760 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 63 [2019-05-23 11:23:54,760 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:54,761 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] [2019-05-23 11:23:54,763 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:54,768 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:54,768 INFO L146 ILogger]: Analyzing trace with hash -1539618111, now seen corresponding path program 1 times [2019-05-23 11:23:54,770 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:54,771 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:54,807 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:54,808 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:54,808 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:54,849 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:54,934 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 11:23:54,937 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:23:54,938 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:23:54,942 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:23:54,955 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:23:54,956 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:23:54,958 INFO L146 ILogger]: Start difference. First operand 120 states. Second operand 3 states. [2019-05-23 11:23:55,037 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:55,038 INFO L146 ILogger]: Finished difference Result 229 states and 255 transitions. [2019-05-23 11:23:55,038 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:23:55,040 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 62 [2019-05-23 11:23:55,040 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:55,051 INFO L146 ILogger]: With dead ends: 229 [2019-05-23 11:23:55,051 INFO L146 ILogger]: Without dead ends: 120 [2019-05-23 11:23:55,055 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 11:23:55,069 INFO L146 ILogger]: Start minimizeSevpa. Operand 120 states. [2019-05-23 11:23:55,091 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 120 to 115. [2019-05-23 11:23:55,092 INFO L146 ILogger]: Start removeUnreachable. Operand 115 states. [2019-05-23 11:23:55,094 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 115 states to 115 states and 122 transitions. [2019-05-23 11:23:55,096 INFO L146 ILogger]: Start accepts. Automaton has 115 states and 122 transitions. Word has length 62 [2019-05-23 11:23:55,096 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:55,097 INFO L146 ILogger]: Abstraction has 115 states and 122 transitions. [2019-05-23 11:23:55,097 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:23:55,097 INFO L146 ILogger]: Start isEmpty. Operand 115 states and 122 transitions. [2019-05-23 11:23:55,100 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 70 [2019-05-23 11:23:55,100 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:55,100 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] [2019-05-23 11:23:55,100 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:55,101 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:55,101 INFO L146 ILogger]: Analyzing trace with hash -866477706, now seen corresponding path program 1 times [2019-05-23 11:23:55,101 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:55,101 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:55,102 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:55,103 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:55,103 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:55,149 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:55,429 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 11:23:55,429 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:55,429 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 11:23:55,445 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:55,522 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:55,524 INFO L146 ILogger]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:23:55,534 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:55,635 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 11:23:55,663 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:23:55,663 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:23:55,665 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:23:55,665 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:23:55,665 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:23:55,666 INFO L146 ILogger]: Start difference. First operand 115 states and 122 transitions. Second operand 6 states. [2019-05-23 11:23:56,095 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:56,095 INFO L146 ILogger]: Finished difference Result 263 states and 283 transitions. [2019-05-23 11:23:56,095 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:23:56,096 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 69 [2019-05-23 11:23:56,096 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:56,098 INFO L146 ILogger]: With dead ends: 263 [2019-05-23 11:23:56,098 INFO L146 ILogger]: Without dead ends: 166 [2019-05-23 11:23:56,099 INFO L146 ILogger]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:23:56,100 INFO L146 ILogger]: Start minimizeSevpa. Operand 166 states. [2019-05-23 11:23:56,110 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 166 to 125. [2019-05-23 11:23:56,110 INFO L146 ILogger]: Start removeUnreachable. Operand 125 states. [2019-05-23 11:23:56,111 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 125 states to 125 states and 132 transitions. [2019-05-23 11:23:56,111 INFO L146 ILogger]: Start accepts. Automaton has 125 states and 132 transitions. Word has length 69 [2019-05-23 11:23:56,112 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:56,112 INFO L146 ILogger]: Abstraction has 125 states and 132 transitions. [2019-05-23 11:23:56,112 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:23:56,112 INFO L146 ILogger]: Start isEmpty. Operand 125 states and 132 transitions. [2019-05-23 11:23:56,115 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 107 [2019-05-23 11:23:56,116 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:56,116 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, 1, 1, 1] [2019-05-23 11:23:56,116 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:56,116 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:56,117 INFO L146 ILogger]: Analyzing trace with hash -1426784878, now seen corresponding path program 1 times [2019-05-23 11:23:56,117 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:56,117 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:56,120 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:56,120 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:56,120 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:56,144 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:56,269 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 11:23:56,269 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:56,270 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 11:23:56,288 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:56,350 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:56,352 INFO L146 ILogger]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:23:56,356 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:56,472 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 11:23:56,507 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:23:56,508 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:23:56,508 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:23:56,509 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:23:56,509 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:23:56,509 INFO L146 ILogger]: Start difference. First operand 125 states and 132 transitions. Second operand 6 states. [2019-05-23 11:23:57,127 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:57,128 INFO L146 ILogger]: Finished difference Result 288 states and 309 transitions. [2019-05-23 11:23:57,129 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:23:57,129 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 106 [2019-05-23 11:23:57,130 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:57,132 INFO L146 ILogger]: With dead ends: 288 [2019-05-23 11:23:57,132 INFO L146 ILogger]: Without dead ends: 209 [2019-05-23 11:23:57,133 INFO L146 ILogger]: 0 DeclaredPredicates, 114 GetRequests, 108 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 11:23:57,133 INFO L146 ILogger]: Start minimizeSevpa. Operand 209 states. [2019-05-23 11:23:57,146 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 209 to 168. [2019-05-23 11:23:57,146 INFO L146 ILogger]: Start removeUnreachable. Operand 168 states. [2019-05-23 11:23:57,147 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 168 states to 168 states and 178 transitions. [2019-05-23 11:23:57,147 INFO L146 ILogger]: Start accepts. Automaton has 168 states and 178 transitions. Word has length 106 [2019-05-23 11:23:57,148 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:57,148 INFO L146 ILogger]: Abstraction has 168 states and 178 transitions. [2019-05-23 11:23:57,148 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:23:57,148 INFO L146 ILogger]: Start isEmpty. Operand 168 states and 178 transitions. [2019-05-23 11:23:57,152 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 144 [2019-05-23 11:23:57,152 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:57,152 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, 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] [2019-05-23 11:23:57,152 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:57,153 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:57,153 INFO L146 ILogger]: Analyzing trace with hash 303794939, now seen corresponding path program 1 times [2019-05-23 11:23:57,153 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:57,153 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:57,154 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:57,155 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:57,155 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:57,191 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:57,352 INFO L146 ILogger]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-05-23 11:23:57,353 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:57,353 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 11:23:57,365 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:57,422 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:57,424 INFO L146 ILogger]: Trace formula consists of 237 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:23:57,429 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:57,612 INFO L146 ILogger]: Checked inductivity of 46 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-05-23 11:23:57,633 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:57,633 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2019-05-23 11:23:57,634 INFO L146 ILogger]: Interpolant automaton has 10 states [2019-05-23 11:23:57,634 INFO L146 ILogger]: Constructing interpolant automaton starting with 10 interpolants. [2019-05-23 11:23:57,634 INFO L146 ILogger]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:23:57,634 INFO L146 ILogger]: Start difference. First operand 168 states and 178 transitions. Second operand 10 states. [2019-05-23 11:23:57,897 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:57,898 INFO L146 ILogger]: Finished difference Result 335 states and 356 transitions. [2019-05-23 11:23:57,899 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:23:57,899 INFO L146 ILogger]: Start accepts. Automaton has 10 states. Word has length 143 [2019-05-23 11:23:57,899 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:57,901 INFO L146 ILogger]: With dead ends: 335 [2019-05-23 11:23:57,901 INFO L146 ILogger]: Without dead ends: 192 [2019-05-23 11:23:57,902 INFO L146 ILogger]: 0 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:23:57,902 INFO L146 ILogger]: Start minimizeSevpa. Operand 192 states. [2019-05-23 11:23:57,912 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 192 to 182. [2019-05-23 11:23:57,913 INFO L146 ILogger]: Start removeUnreachable. Operand 182 states. [2019-05-23 11:23:57,913 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 182 states to 182 states and 192 transitions. [2019-05-23 11:23:57,914 INFO L146 ILogger]: Start accepts. Automaton has 182 states and 192 transitions. Word has length 143 [2019-05-23 11:23:57,914 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:57,914 INFO L146 ILogger]: Abstraction has 182 states and 192 transitions. [2019-05-23 11:23:57,914 INFO L146 ILogger]: Interpolant automaton has 10 states. [2019-05-23 11:23:57,914 INFO L146 ILogger]: Start isEmpty. Operand 182 states and 192 transitions. [2019-05-23 11:23:57,917 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 158 [2019-05-23 11:23:57,917 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:57,917 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, 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] [2019-05-23 11:23:57,917 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:57,918 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:57,918 INFO L146 ILogger]: Analyzing trace with hash 1916510114, now seen corresponding path program 2 times [2019-05-23 11:23:57,918 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:57,918 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:57,919 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:57,919 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:57,919 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:57,973 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:58,133 INFO L146 ILogger]: Checked inductivity of 69 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-05-23 11:23:58,133 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:58,133 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 11:23:58,142 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:23:58,212 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:23:58,212 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:58,213 INFO L146 ILogger]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:23:58,218 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:58,522 INFO L146 ILogger]: Checked inductivity of 69 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-05-23 11:23:58,542 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:58,542 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 14 [2019-05-23 11:23:58,543 INFO L146 ILogger]: Interpolant automaton has 14 states [2019-05-23 11:23:58,552 INFO L146 ILogger]: Constructing interpolant automaton starting with 14 interpolants. [2019-05-23 11:23:58,553 INFO L146 ILogger]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2019-05-23 11:23:58,553 INFO L146 ILogger]: Start difference. First operand 182 states and 192 transitions. Second operand 14 states. [2019-05-23 11:23:59,032 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:59,033 INFO L146 ILogger]: Finished difference Result 422 states and 451 transitions. [2019-05-23 11:23:59,033 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-05-23 11:23:59,033 INFO L146 ILogger]: Start accepts. Automaton has 14 states. Word has length 157 [2019-05-23 11:23:59,034 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:59,036 INFO L146 ILogger]: With dead ends: 422 [2019-05-23 11:23:59,036 INFO L146 ILogger]: Without dead ends: 272 [2019-05-23 11:23:59,038 INFO L146 ILogger]: 0 DeclaredPredicates, 179 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2019-05-23 11:23:59,039 INFO L146 ILogger]: Start minimizeSevpa. Operand 272 states. [2019-05-23 11:23:59,058 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 272 to 231. [2019-05-23 11:23:59,059 INFO L146 ILogger]: Start removeUnreachable. Operand 231 states. [2019-05-23 11:23:59,059 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 231 states to 231 states and 244 transitions. [2019-05-23 11:23:59,060 INFO L146 ILogger]: Start accepts. Automaton has 231 states and 244 transitions. Word has length 157 [2019-05-23 11:23:59,060 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:59,060 INFO L146 ILogger]: Abstraction has 231 states and 244 transitions. [2019-05-23 11:23:59,060 INFO L146 ILogger]: Interpolant automaton has 14 states. [2019-05-23 11:23:59,060 INFO L146 ILogger]: Start isEmpty. Operand 231 states and 244 transitions. [2019-05-23 11:23:59,063 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 195 [2019-05-23 11:23:59,063 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:59,064 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-05-23 11:23:59,064 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:59,064 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:59,065 INFO L146 ILogger]: Analyzing trace with hash -27182914, now seen corresponding path program 3 times [2019-05-23 11:23:59,065 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:59,065 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:59,066 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:59,066 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:59,066 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:59,108 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:59,287 INFO L146 ILogger]: Checked inductivity of 154 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2019-05-23 11:23:59,287 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:23:59,287 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 11:23:59,296 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:23:59,352 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:23:59,352 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:59,353 INFO L146 ILogger]: Trace formula consists of 247 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:23:59,357 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:59,477 INFO L146 ILogger]: Checked inductivity of 154 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-05-23 11:23:59,498 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:23:59,498 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 16 [2019-05-23 11:23:59,499 INFO L146 ILogger]: Interpolant automaton has 16 states [2019-05-23 11:23:59,499 INFO L146 ILogger]: Constructing interpolant automaton starting with 16 interpolants. [2019-05-23 11:23:59,500 INFO L146 ILogger]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:23:59,500 INFO L146 ILogger]: Start difference. First operand 231 states and 244 transitions. Second operand 16 states. [2019-05-23 11:23:59,842 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:59,845 INFO L146 ILogger]: Finished difference Result 442 states and 469 transitions. [2019-05-23 11:23:59,846 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-05-23 11:23:59,846 INFO L146 ILogger]: Start accepts. Automaton has 16 states. Word has length 194 [2019-05-23 11:23:59,846 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:59,848 INFO L146 ILogger]: With dead ends: 442 [2019-05-23 11:23:59,848 INFO L146 ILogger]: Without dead ends: 250 [2019-05-23 11:23:59,850 INFO L146 ILogger]: 0 DeclaredPredicates, 216 GetRequests, 190 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 11:23:59,851 INFO L146 ILogger]: Start minimizeSevpa. Operand 250 states. [2019-05-23 11:23:59,870 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 250 to 245. [2019-05-23 11:23:59,870 INFO L146 ILogger]: Start removeUnreachable. Operand 245 states. [2019-05-23 11:23:59,871 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 245 states to 245 states and 258 transitions. [2019-05-23 11:23:59,871 INFO L146 ILogger]: Start accepts. Automaton has 245 states and 258 transitions. Word has length 194 [2019-05-23 11:23:59,872 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:59,872 INFO L146 ILogger]: Abstraction has 245 states and 258 transitions. [2019-05-23 11:23:59,872 INFO L146 ILogger]: Interpolant automaton has 16 states. [2019-05-23 11:23:59,872 INFO L146 ILogger]: Start isEmpty. Operand 245 states and 258 transitions. [2019-05-23 11:23:59,877 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 209 [2019-05-23 11:23:59,878 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:59,878 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-05-23 11:23:59,878 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:59,879 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:59,879 INFO L146 ILogger]: Analyzing trace with hash -181774217, now seen corresponding path program 4 times [2019-05-23 11:23:59,879 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:59,879 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:59,880 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:59,880 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:59,880 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:59,959 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:00,201 INFO L146 ILogger]: Checked inductivity of 198 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2019-05-23 11:24:00,201 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:00,201 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 11:24:00,211 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:24:00,274 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:24:00,274 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:00,276 INFO L146 ILogger]: Trace formula consists of 301 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:24:00,280 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:00,391 INFO L146 ILogger]: Checked inductivity of 198 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2019-05-23 11:24:00,411 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:00,411 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-05-23 11:24:00,412 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:24:00,412 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:24:00,412 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:24:00,412 INFO L146 ILogger]: Start difference. First operand 245 states and 258 transitions. Second operand 11 states. [2019-05-23 11:24:00,884 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:00,884 INFO L146 ILogger]: Finished difference Result 473 states and 503 transitions. [2019-05-23 11:24:00,885 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:24:00,885 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 208 [2019-05-23 11:24:00,885 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:00,886 INFO L146 ILogger]: With dead ends: 473 [2019-05-23 11:24:00,887 INFO L146 ILogger]: Without dead ends: 323 [2019-05-23 11:24:00,887 INFO L146 ILogger]: 0 DeclaredPredicates, 222 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:24:00,888 INFO L146 ILogger]: Start minimizeSevpa. Operand 323 states. [2019-05-23 11:24:00,894 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 323 to 287. [2019-05-23 11:24:00,894 INFO L146 ILogger]: Start removeUnreachable. Operand 287 states. [2019-05-23 11:24:00,895 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 287 states to 287 states and 303 transitions. [2019-05-23 11:24:00,895 INFO L146 ILogger]: Start accepts. Automaton has 287 states and 303 transitions. Word has length 208 [2019-05-23 11:24:00,895 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:00,896 INFO L146 ILogger]: Abstraction has 287 states and 303 transitions. [2019-05-23 11:24:00,896 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:24:00,896 INFO L146 ILogger]: Start isEmpty. Operand 287 states and 303 transitions. [2019-05-23 11:24:00,898 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 239 [2019-05-23 11:24:00,898 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:00,898 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, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:00,899 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:00,899 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:00,899 INFO L146 ILogger]: Analyzing trace with hash -372725283, now seen corresponding path program 5 times [2019-05-23 11:24:00,899 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:00,900 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:00,900 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:00,900 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:00,901 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:00,933 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:01,148 INFO L146 ILogger]: Checked inductivity of 291 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2019-05-23 11:24:01,148 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:01,148 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 11:24:01,157 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:24:01,322 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-05-23 11:24:01,322 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:01,324 INFO L146 ILogger]: Trace formula consists of 377 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:24:01,328 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:01,391 INFO L146 ILogger]: Checked inductivity of 291 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2019-05-23 11:24:01,416 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:01,416 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2019-05-23 11:24:01,417 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:24:01,417 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:24:01,417 INFO L146 ILogger]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:24:01,418 INFO L146 ILogger]: Start difference. First operand 287 states and 303 transitions. Second operand 13 states. [2019-05-23 11:24:01,750 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:01,751 INFO L146 ILogger]: Finished difference Result 507 states and 539 transitions. [2019-05-23 11:24:01,751 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:24:01,751 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 238 [2019-05-23 11:24:01,752 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:01,754 INFO L146 ILogger]: With dead ends: 507 [2019-05-23 11:24:01,754 INFO L146 ILogger]: Without dead ends: 329 [2019-05-23 11:24:01,755 INFO L146 ILogger]: 0 DeclaredPredicates, 264 GetRequests, 245 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 11:24:01,756 INFO L146 ILogger]: Start minimizeSevpa. Operand 329 states. [2019-05-23 11:24:01,762 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 329 to 329. [2019-05-23 11:24:01,762 INFO L146 ILogger]: Start removeUnreachable. Operand 329 states. [2019-05-23 11:24:01,763 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 329 states to 329 states and 348 transitions. [2019-05-23 11:24:01,763 INFO L146 ILogger]: Start accepts. Automaton has 329 states and 348 transitions. Word has length 238 [2019-05-23 11:24:01,764 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:01,764 INFO L146 ILogger]: Abstraction has 329 states and 348 transitions. [2019-05-23 11:24:01,764 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:24:01,764 INFO L146 ILogger]: Start isEmpty. Operand 329 states and 348 transitions. [2019-05-23 11:24:01,768 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 269 [2019-05-23 11:24:01,768 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:01,768 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, 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] [2019-05-23 11:24:01,768 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:01,769 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:01,769 INFO L146 ILogger]: Analyzing trace with hash -991238973, now seen corresponding path program 6 times [2019-05-23 11:24:01,769 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:01,769 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:01,770 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:01,770 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:01,770 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:01,825 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:02,149 INFO L146 ILogger]: Checked inductivity of 414 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2019-05-23 11:24:02,149 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:02,149 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 11:24:02,159 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:24:02,303 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2019-05-23 11:24:02,304 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:02,305 INFO L146 ILogger]: Trace formula consists of 422 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:24:02,309 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:02,368 INFO L146 ILogger]: Checked inductivity of 414 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2019-05-23 11:24:02,387 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:02,387 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-05-23 11:24:02,388 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:24:02,388 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:24:02,395 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:24:02,395 INFO L146 ILogger]: Start difference. First operand 329 states and 348 transitions. Second operand 11 states. [2019-05-23 11:24:02,699 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:02,699 INFO L146 ILogger]: Finished difference Result 422 states and 447 transitions. [2019-05-23 11:24:02,702 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:24:02,702 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 268 [2019-05-23 11:24:02,703 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:02,704 INFO L146 ILogger]: With dead ends: 422 [2019-05-23 11:24:02,704 INFO L146 ILogger]: Without dead ends: 336 [2019-05-23 11:24:02,706 INFO L146 ILogger]: 0 DeclaredPredicates, 282 GetRequests, 267 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 11:24:02,706 INFO L146 ILogger]: Start minimizeSevpa. Operand 336 states. [2019-05-23 11:24:02,711 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 336 to 336. [2019-05-23 11:24:02,712 INFO L146 ILogger]: Start removeUnreachable. Operand 336 states. [2019-05-23 11:24:02,713 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 336 states to 336 states and 355 transitions. [2019-05-23 11:24:02,713 INFO L146 ILogger]: Start accepts. Automaton has 336 states and 355 transitions. Word has length 268 [2019-05-23 11:24:02,713 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:02,714 INFO L146 ILogger]: Abstraction has 336 states and 355 transitions. [2019-05-23 11:24:02,714 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:24:02,714 INFO L146 ILogger]: Start isEmpty. Operand 336 states and 355 transitions. [2019-05-23 11:24:02,715 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 276 [2019-05-23 11:24:02,716 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:02,716 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, 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] [2019-05-23 11:24:02,716 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:02,716 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:02,716 INFO L146 ILogger]: Analyzing trace with hash -77054220, now seen corresponding path program 7 times [2019-05-23 11:24:02,716 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:02,716 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:02,717 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:02,717 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:24:02,717 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:02,865 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:05,606 WARN L146 ILogger]: Spent 179.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2019-05-23 11:24:07,001 INFO L146 ILogger]: Checked inductivity of 436 backedges. 0 proven. 315 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2019-05-23 11:24:07,001 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:07,001 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 11:24:07,011 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:07,152 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:07,154 INFO L146 ILogger]: Trace formula consists of 432 conjuncts, 85 conjunts are in the unsatisfiable core [2019-05-23 11:24:07,159 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:08,794 INFO L146 ILogger]: Checked inductivity of 436 backedges. 0 proven. 315 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2019-05-23 11:24:08,813 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:08,813 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 44] total 53 [2019-05-23 11:24:08,814 INFO L146 ILogger]: Interpolant automaton has 53 states [2019-05-23 11:24:08,815 INFO L146 ILogger]: Constructing interpolant automaton starting with 53 interpolants. [2019-05-23 11:24:08,816 INFO L146 ILogger]: CoverageRelationStatistics Valid=195, Invalid=2561, Unknown=0, NotChecked=0, Total=2756 [2019-05-23 11:24:08,816 INFO L146 ILogger]: Start difference. First operand 336 states and 355 transitions. Second operand 53 states. [2019-05-23 11:24:12,746 WARN L146 ILogger]: Spent 301.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2019-05-23 11:24:13,672 WARN L146 ILogger]: Spent 251.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2019-05-23 11:24:14,226 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:14,227 INFO L146 ILogger]: Finished difference Result 1123 states and 1194 transitions. [2019-05-23 11:24:14,227 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2019-05-23 11:24:14,227 INFO L146 ILogger]: Start accepts. Automaton has 53 states. Word has length 275 [2019-05-23 11:24:14,228 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:14,233 INFO L146 ILogger]: With dead ends: 1123 [2019-05-23 11:24:14,233 INFO L146 ILogger]: Without dead ends: 1115 [2019-05-23 11:24:14,236 INFO L146 ILogger]: 0 DeclaredPredicates, 361 GetRequests, 251 SyntacticMatches, 19 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2896 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=585, Invalid=7971, Unknown=0, NotChecked=0, Total=8556 [2019-05-23 11:24:14,237 INFO L146 ILogger]: Start minimizeSevpa. Operand 1115 states. [2019-05-23 11:24:14,253 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 1115 to 537. [2019-05-23 11:24:14,253 INFO L146 ILogger]: Start removeUnreachable. Operand 537 states. [2019-05-23 11:24:14,255 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 537 states to 537 states and 573 transitions. [2019-05-23 11:24:14,255 INFO L146 ILogger]: Start accepts. Automaton has 537 states and 573 transitions. Word has length 275 [2019-05-23 11:24:14,255 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:14,256 INFO L146 ILogger]: Abstraction has 537 states and 573 transitions. [2019-05-23 11:24:14,256 INFO L146 ILogger]: Interpolant automaton has 53 states. [2019-05-23 11:24:14,256 INFO L146 ILogger]: Start isEmpty. Operand 537 states and 573 transitions. [2019-05-23 11:24:14,257 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 276 [2019-05-23 11:24:14,258 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:14,258 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, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2019-05-23 11:24:14,258 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:14,258 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:14,259 INFO L146 ILogger]: Analyzing trace with hash -2039886534, now seen corresponding path program 1 times [2019-05-23 11:24:14,259 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:14,259 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:14,260 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:14,260 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:14,260 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:14,439 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:16,229 WARN L146 ILogger]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-05-23 11:24:18,217 INFO L146 ILogger]: Checked inductivity of 420 backedges. 47 proven. 180 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2019-05-23 11:24:18,217 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:24:18,217 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:24:18,226 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:18,296 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:18,298 INFO L146 ILogger]: Trace formula consists of 433 conjuncts, 50 conjunts are in the unsatisfiable core [2019-05-23 11:24:18,303 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:24:18,476 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2019-05-23 11:24:18,477 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:24:18,483 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:24:18,483 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:24:18,484 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:15 [2019-05-23 11:24:18,518 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-05-23 11:24:18,519 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:24:18,527 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:24:18,527 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:24:18,528 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:27 [2019-05-23 11:24:18,893 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2019-05-23 11:24:18,893 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:24:18,894 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:24:18,895 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:24:18,895 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:11 [2019-05-23 11:24:19,059 INFO L146 ILogger]: Checked inductivity of 420 backedges. 17 proven. 85 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2019-05-23 11:24:19,078 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:24:19,078 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 23] total 43 [2019-05-23 11:24:19,079 INFO L146 ILogger]: Interpolant automaton has 43 states [2019-05-23 11:24:19,079 INFO L146 ILogger]: Constructing interpolant automaton starting with 43 interpolants. [2019-05-23 11:24:19,079 INFO L146 ILogger]: CoverageRelationStatistics Valid=148, Invalid=1658, Unknown=0, NotChecked=0, Total=1806 [2019-05-23 11:24:19,080 INFO L146 ILogger]: Start difference. First operand 537 states and 573 transitions. Second operand 43 states. [2019-05-23 11:24:37,258 WARN L146 ILogger]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2019-05-23 11:24:38,706 WARN L146 ILogger]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2019-05-23 11:24:52,389 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:52,389 INFO L146 ILogger]: Finished difference Result 960 states and 1022 transitions. [2019-05-23 11:24:52,390 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2019-05-23 11:24:52,390 INFO L146 ILogger]: Start accepts. Automaton has 43 states. Word has length 275 [2019-05-23 11:24:52,391 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:52,396 INFO L146 ILogger]: With dead ends: 960 [2019-05-23 11:24:52,397 INFO L146 ILogger]: Without dead ends: 938 [2019-05-23 11:24:52,401 INFO L146 ILogger]: 0 DeclaredPredicates, 387 GetRequests, 263 SyntacticMatches, 7 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4065 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=1727, Invalid=12313, Unknown=2, NotChecked=0, Total=14042 [2019-05-23 11:24:52,402 INFO L146 ILogger]: Start minimizeSevpa. Operand 938 states. [2019-05-23 11:24:52,424 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 938 to 709. [2019-05-23 11:24:52,424 INFO L146 ILogger]: Start removeUnreachable. Operand 709 states. [2019-05-23 11:24:52,427 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 709 states to 709 states and 755 transitions. [2019-05-23 11:24:52,428 INFO L146 ILogger]: Start accepts. Automaton has 709 states and 755 transitions. Word has length 275 [2019-05-23 11:24:52,428 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:52,428 INFO L146 ILogger]: Abstraction has 709 states and 755 transitions. [2019-05-23 11:24:52,428 INFO L146 ILogger]: Interpolant automaton has 43 states. [2019-05-23 11:24:52,429 INFO L146 ILogger]: Start isEmpty. Operand 709 states and 755 transitions. [2019-05-23 11:24:52,431 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 276 [2019-05-23 11:24:52,431 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:52,431 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, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2019-05-23 11:24:52,432 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:52,432 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:52,432 INFO L146 ILogger]: Analyzing trace with hash 182005178, now seen corresponding path program 2 times [2019-05-23 11:24:52,432 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:52,432 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:52,433 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:52,433 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:52,433 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:52,623 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:56,929 WARN L146 ILogger]: Spent 183.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 23