java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label18_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:27:44,848 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:27:44,850 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:27:44,863 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:27:44,863 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:27:44,864 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:27:44,866 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:27:44,868 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:27:44,869 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:27:44,870 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:27:44,871 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:27:44,871 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:27:44,872 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:27:44,873 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:27:44,874 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:27:44,875 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:27:44,876 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:27:44,878 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:27:44,880 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:27:44,881 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:27:44,882 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:27:44,883 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:27:44,886 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:27:44,886 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:27:44,886 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:27:44,887 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:27:44,888 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:27:44,889 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:27:44,890 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:27:44,891 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:27:44,891 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:27:44,892 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:27:44,892 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:27:44,892 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:27:44,893 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:27:44,894 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:27:44,894 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 05:27:44,910 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:27:44,911 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:27:44,912 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:27:44,912 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:27:44,912 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:27:44,912 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:27:44,913 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 05:27:44,913 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 05:27:44,913 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 05:27:44,913 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:27:44,913 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 05:27:44,913 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 05:27:44,914 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 05:27:44,914 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:27:44,914 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:27:44,915 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:27:44,915 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:27:44,915 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:27:44,915 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:27:44,915 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:27:44,916 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:27:44,918 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:27:44,918 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:27:44,918 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:27:44,918 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:27:44,919 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:27:44,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:27:44,919 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:27:44,919 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:27:44,919 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:27:44,920 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 05:27:44,920 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:27:44,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:27:44,920 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 05:27:44,920 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 05:27:44,920 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 05:27:44,982 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:27:44,998 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:27:45,002 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:27:45,004 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:27:45,004 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:27:45,005 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label18_false-unreach-call_false-termination.c [2018-10-27 05:27:45,069 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0ee83d774/74a058d68b8a47108c4e68d2b41d5cdf/FLAGe38cefd8c [2018-10-27 05:27:45,640 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:27:45,644 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label18_false-unreach-call_false-termination.c [2018-10-27 05:27:45,666 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0ee83d774/74a058d68b8a47108c4e68d2b41d5cdf/FLAGe38cefd8c [2018-10-27 05:27:45,691 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0ee83d774/74a058d68b8a47108c4e68d2b41d5cdf [2018-10-27 05:27:45,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:27:45,708 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 05:27:45,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:27:45,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:27:45,718 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:27:45,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:27:45" (1/1) ... [2018-10-27 05:27:45,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4a2b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:45, skipping insertion in model container [2018-10-27 05:27:45,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:27:45" (1/1) ... [2018-10-27 05:27:45,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:27:45,812 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:27:46,382 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:27:46,387 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:27:46,517 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:27:46,536 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:27:46,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:46 WrapperNode [2018-10-27 05:27:46,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:27:46,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:27:46,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:27:46,538 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:27:46,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:46" (1/1) ... [2018-10-27 05:27:46,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:46" (1/1) ... [2018-10-27 05:27:46,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:27:46,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:27:46,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:27:46,754 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:27:46,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:46" (1/1) ... [2018-10-27 05:27:46,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:46" (1/1) ... [2018-10-27 05:27:46,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:46" (1/1) ... [2018-10-27 05:27:46,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:46" (1/1) ... [2018-10-27 05:27:46,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:46" (1/1) ... [2018-10-27 05:27:46,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:46" (1/1) ... [2018-10-27 05:27:46,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:46" (1/1) ... [2018-10-27 05:27:46,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:27:46,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:27:46,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:27:46,862 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:27:46,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:27:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:27:46,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:27:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 05:27:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 05:27:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:27:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:27:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:27:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:27:50,472 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:27:50,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:27:50 BoogieIcfgContainer [2018-10-27 05:27:50,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:27:50,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:27:50,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:27:50,481 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:27:50,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:27:45" (1/3) ... [2018-10-27 05:27:50,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71cf4c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:27:50, skipping insertion in model container [2018-10-27 05:27:50,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:27:46" (2/3) ... [2018-10-27 05:27:50,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71cf4c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:27:50, skipping insertion in model container [2018-10-27 05:27:50,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:27:50" (3/3) ... [2018-10-27 05:27:50,485 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label18_false-unreach-call_false-termination.c [2018-10-27 05:27:50,496 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:27:50,506 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 05:27:50,526 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 05:27:50,579 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:27:50,579 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:27:50,580 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:27:50,580 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:27:50,580 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:27:50,580 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:27:50,580 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:27:50,581 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:27:50,617 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-27 05:27:50,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-27 05:27:50,625 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:27:50,626 INFO L375 BasicCegarLoop]: 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] [2018-10-27 05:27:50,628 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:27:50,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:27:50,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1102651839, now seen corresponding path program 1 times [2018-10-27 05:27:50,636 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:27:50,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:27:50,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:27:50,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:27:50,687 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:27:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:27:51,041 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 05:27:51,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:27:51,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:27:51,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 05:27:51,144 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:27:51,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:27:51,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:27:51,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:27:51,173 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-10-27 05:27:52,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:27:52,815 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-10-27 05:27:52,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:27:52,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-10-27 05:27:52,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:27:52,841 INFO L225 Difference]: With dead ends: 691 [2018-10-27 05:27:52,841 INFO L226 Difference]: Without dead ends: 434 [2018-10-27 05:27:52,850 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:27:52,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-10-27 05:27:52,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-10-27 05:27:52,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-10-27 05:27:52,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-10-27 05:27:52,943 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 27 [2018-10-27 05:27:52,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:27:52,943 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-10-27 05:27:52,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:27:52,944 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-10-27 05:27:52,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-10-27 05:27:52,950 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:27:52,950 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 05:27:52,951 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:27:52,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:27:52,951 INFO L82 PathProgramCache]: Analyzing trace with hash 122089084, now seen corresponding path program 1 times [2018-10-27 05:27:52,952 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:27:52,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:27:52,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:27:52,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:27:52,953 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:27:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:27:53,304 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:27:53,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:27:53,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 05:27:53,305 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:27:53,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 05:27:53,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 05:27:53,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 05:27:53,308 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-10-27 05:27:56,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:27:56,901 INFO L93 Difference]: Finished difference Result 1588 states and 2935 transitions. [2018-10-27 05:27:56,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 05:27:56,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2018-10-27 05:27:56,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:27:56,914 INFO L225 Difference]: With dead ends: 1588 [2018-10-27 05:27:56,915 INFO L226 Difference]: Without dead ends: 1160 [2018-10-27 05:27:56,920 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 05:27:56,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2018-10-27 05:27:56,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1153. [2018-10-27 05:27:56,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states. [2018-10-27 05:27:56,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1887 transitions. [2018-10-27 05:27:56,988 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1887 transitions. Word has length 97 [2018-10-27 05:27:56,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:27:56,989 INFO L481 AbstractCegarLoop]: Abstraction has 1153 states and 1887 transitions. [2018-10-27 05:27:56,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 05:27:56,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1887 transitions. [2018-10-27 05:27:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-10-27 05:27:57,037 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:27:57,037 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 05:27:57,037 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:27:57,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:27:57,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1764602551, now seen corresponding path program 1 times [2018-10-27 05:27:57,044 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:27:57,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:27:57,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:27:57,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:27:57,045 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:27:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:27:57,270 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:27:57,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:27:57,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 05:27:57,271 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:27:57,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 05:27:57,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 05:27:57,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 05:27:57,272 INFO L87 Difference]: Start difference. First operand 1153 states and 1887 transitions. Second operand 5 states. [2018-10-27 05:27:59,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:27:59,700 INFO L93 Difference]: Finished difference Result 2716 states and 4601 transitions. [2018-10-27 05:27:59,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 05:27:59,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2018-10-27 05:27:59,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:27:59,721 INFO L225 Difference]: With dead ends: 2716 [2018-10-27 05:27:59,722 INFO L226 Difference]: Without dead ends: 1569 [2018-10-27 05:27:59,727 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 05:27:59,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2018-10-27 05:27:59,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1538. [2018-10-27 05:27:59,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1538 states. [2018-10-27 05:27:59,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2356 transitions. [2018-10-27 05:27:59,796 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2356 transitions. Word has length 98 [2018-10-27 05:27:59,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:27:59,796 INFO L481 AbstractCegarLoop]: Abstraction has 1538 states and 2356 transitions. [2018-10-27 05:27:59,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 05:27:59,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2356 transitions. [2018-10-27 05:27:59,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-27 05:27:59,798 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:27:59,799 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 05:27:59,803 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:27:59,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:27:59,803 INFO L82 PathProgramCache]: Analyzing trace with hash -263336997, now seen corresponding path program 1 times [2018-10-27 05:27:59,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:27:59,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:27:59,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:27:59,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:27:59,805 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:27:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:28:00,015 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:28:00,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:28:00,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 05:28:00,016 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:28:00,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 05:28:00,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 05:28:00,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 05:28:00,017 INFO L87 Difference]: Start difference. First operand 1538 states and 2356 transitions. Second operand 5 states. [2018-10-27 05:28:02,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:28:02,792 INFO L93 Difference]: Finished difference Result 4905 states and 7502 transitions. [2018-10-27 05:28:02,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 05:28:02,793 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2018-10-27 05:28:02,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:28:02,815 INFO L225 Difference]: With dead ends: 4905 [2018-10-27 05:28:02,815 INFO L226 Difference]: Without dead ends: 3373 [2018-10-27 05:28:02,829 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 05:28:02,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2018-10-27 05:28:02,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 3262. [2018-10-27 05:28:02,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3262 states. [2018-10-27 05:28:02,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4435 transitions. [2018-10-27 05:28:02,935 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4435 transitions. Word has length 100 [2018-10-27 05:28:02,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:28:02,935 INFO L481 AbstractCegarLoop]: Abstraction has 3262 states and 4435 transitions. [2018-10-27 05:28:02,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 05:28:02,936 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4435 transitions. [2018-10-27 05:28:02,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-10-27 05:28:02,944 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:28:02,944 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-10-27 05:28:02,945 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:28:02,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:28:02,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1806492795, now seen corresponding path program 1 times [2018-10-27 05:28:02,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:28:02,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:28:02,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:28:02,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:28:02,947 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:28:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:28:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-10-27 05:28:03,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:28:03,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 05:28:03,210 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:28:03,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 05:28:03,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 05:28:03,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:28:03,211 INFO L87 Difference]: Start difference. First operand 3262 states and 4435 transitions. Second operand 4 states. [2018-10-27 05:28:06,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:28:06,101 INFO L93 Difference]: Finished difference Result 8791 states and 12460 transitions. [2018-10-27 05:28:06,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 05:28:06,107 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 185 [2018-10-27 05:28:06,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:28:06,138 INFO L225 Difference]: With dead ends: 8791 [2018-10-27 05:28:06,138 INFO L226 Difference]: Without dead ends: 5535 [2018-10-27 05:28:06,162 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:28:06,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5535 states. [2018-10-27 05:28:06,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5535 to 5535. [2018-10-27 05:28:06,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5535 states. [2018-10-27 05:28:06,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5535 states to 5535 states and 7487 transitions. [2018-10-27 05:28:06,306 INFO L78 Accepts]: Start accepts. Automaton has 5535 states and 7487 transitions. Word has length 185 [2018-10-27 05:28:06,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:28:06,307 INFO L481 AbstractCegarLoop]: Abstraction has 5535 states and 7487 transitions. [2018-10-27 05:28:06,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 05:28:06,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5535 states and 7487 transitions. [2018-10-27 05:28:06,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2018-10-27 05:28:06,321 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:28:06,322 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:28:06,322 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:28:06,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:28:06,322 INFO L82 PathProgramCache]: Analyzing trace with hash -459245327, now seen corresponding path program 1 times [2018-10-27 05:28:06,323 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:28:06,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:28:06,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:28:06,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:28:06,324 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:28:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:28:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2018-10-27 05:28:06,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:28:06,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 05:28:06,503 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:28:06,504 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:28:06,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:28:06,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:28:06,505 INFO L87 Difference]: Start difference. First operand 5535 states and 7487 transitions. Second operand 3 states. [2018-10-27 05:28:07,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:28:07,891 INFO L93 Difference]: Finished difference Result 13571 states and 18960 transitions. [2018-10-27 05:28:07,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:28:07,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2018-10-27 05:28:07,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:28:07,936 INFO L225 Difference]: With dead ends: 13571 [2018-10-27 05:28:07,937 INFO L226 Difference]: Without dead ends: 8042 [2018-10-27 05:28:07,973 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:28:07,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8042 states. [2018-10-27 05:28:08,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8042 to 8040. [2018-10-27 05:28:08,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8040 states. [2018-10-27 05:28:08,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8040 states to 8040 states and 11044 transitions. [2018-10-27 05:28:08,186 INFO L78 Accepts]: Start accepts. Automaton has 8040 states and 11044 transitions. Word has length 245 [2018-10-27 05:28:08,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:28:08,187 INFO L481 AbstractCegarLoop]: Abstraction has 8040 states and 11044 transitions. [2018-10-27 05:28:08,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:28:08,188 INFO L276 IsEmpty]: Start isEmpty. Operand 8040 states and 11044 transitions. [2018-10-27 05:28:08,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-10-27 05:28:08,241 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:28:08,241 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2018-10-27 05:28:08,241 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:28:08,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:28:08,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1610952686, now seen corresponding path program 1 times [2018-10-27 05:28:08,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:28:08,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:28:08,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:28:08,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:28:08,248 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:28:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:28:08,785 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2018-10-27 05:28:08,968 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 40 proven. 108 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 05:28:08,969 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:28:08,969 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:28:08,970 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 311 with the following transitions: [2018-10-27 05:28:08,973 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [894], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-27 05:28:09,032 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:28:09,033 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:28:15,405 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 05:28:15,407 INFO L272 AbstractInterpreter]: Visited 175 different actions 175 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 05:28:15,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:28:15,482 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 05:28:20,022 INFO L227 lantSequenceWeakener]: Weakened 301 states. On average, predicates are now at 77.44% of their original sizes. [2018-10-27 05:28:20,023 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 05:28:20,114 INFO L415 sIntCurrentIteration]: We unified 309 AI predicates to 309 [2018-10-27 05:28:20,114 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 05:28:20,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:28:20,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-10-27 05:28:20,116 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:28:20,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 05:28:20,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 05:28:20,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 05:28:20,117 INFO L87 Difference]: Start difference. First operand 8040 states and 11044 transitions. Second operand 6 states. [2018-10-27 05:28:35,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:28:35,274 INFO L93 Difference]: Finished difference Result 16259 states and 22312 transitions. [2018-10-27 05:28:35,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 05:28:35,274 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 310 [2018-10-27 05:28:35,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:28:35,313 INFO L225 Difference]: With dead ends: 16259 [2018-10-27 05:28:35,313 INFO L226 Difference]: Without dead ends: 8225 [2018-10-27 05:28:35,348 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 310 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 05:28:35,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8225 states. [2018-10-27 05:28:35,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8225 to 8223. [2018-10-27 05:28:35,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8223 states. [2018-10-27 05:28:35,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8223 states to 8223 states and 11235 transitions. [2018-10-27 05:28:35,568 INFO L78 Accepts]: Start accepts. Automaton has 8223 states and 11235 transitions. Word has length 310 [2018-10-27 05:28:35,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:28:35,568 INFO L481 AbstractCegarLoop]: Abstraction has 8223 states and 11235 transitions. [2018-10-27 05:28:35,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 05:28:35,569 INFO L276 IsEmpty]: Start isEmpty. Operand 8223 states and 11235 transitions. [2018-10-27 05:28:35,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2018-10-27 05:28:35,610 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:28:35,611 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2018-10-27 05:28:35,612 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:28:35,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:28:35,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1353528260, now seen corresponding path program 1 times [2018-10-27 05:28:35,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:28:35,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:28:35,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:28:35,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:28:35,614 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:28:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:28:36,778 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 148 proven. 190 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 05:28:36,778 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:28:36,779 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:28:36,779 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 396 with the following transitions: [2018-10-27 05:28:36,780 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [894], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-27 05:28:36,787 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:28:36,788 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:28:44,241 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 05:28:44,242 INFO L272 AbstractInterpreter]: Visited 179 different actions 351 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 05:28:44,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:28:44,264 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 05:28:48,153 INFO L227 lantSequenceWeakener]: Weakened 392 states. On average, predicates are now at 77.46% of their original sizes. [2018-10-27 05:28:48,153 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 05:28:48,304 INFO L415 sIntCurrentIteration]: We unified 394 AI predicates to 394 [2018-10-27 05:28:48,304 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 05:28:48,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:28:48,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-10-27 05:28:48,305 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:28:48,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 05:28:48,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 05:28:48,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-10-27 05:28:48,307 INFO L87 Difference]: Start difference. First operand 8223 states and 11235 transitions. Second operand 10 states. [2018-10-27 05:29:45,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:29:45,670 INFO L93 Difference]: Finished difference Result 17187 states and 23363 transitions. [2018-10-27 05:29:45,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-27 05:29:45,671 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 395 [2018-10-27 05:29:45,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:29:45,710 INFO L225 Difference]: With dead ends: 17187 [2018-10-27 05:29:45,710 INFO L226 Difference]: Without dead ends: 8783 [2018-10-27 05:29:45,737 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 403 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-10-27 05:29:45,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8783 states. [2018-10-27 05:29:45,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8783 to 8781. [2018-10-27 05:29:45,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8781 states. [2018-10-27 05:29:45,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8781 states to 8781 states and 11840 transitions. [2018-10-27 05:29:45,932 INFO L78 Accepts]: Start accepts. Automaton has 8781 states and 11840 transitions. Word has length 395 [2018-10-27 05:29:45,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:29:45,932 INFO L481 AbstractCegarLoop]: Abstraction has 8781 states and 11840 transitions. [2018-10-27 05:29:45,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 05:29:45,932 INFO L276 IsEmpty]: Start isEmpty. Operand 8781 states and 11840 transitions. [2018-10-27 05:29:45,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2018-10-27 05:29:45,983 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:29:45,984 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-27 05:29:45,984 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:29:45,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:29:45,985 INFO L82 PathProgramCache]: Analyzing trace with hash -384340091, now seen corresponding path program 1 times [2018-10-27 05:29:45,985 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:29:45,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:29:45,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:29:45,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:29:45,986 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:29:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:29:47,149 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 278 proven. 250 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-10-27 05:29:47,150 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:29:47,150 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:29:47,150 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 496 with the following transitions: [2018-10-27 05:29:47,151 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [894], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-27 05:29:47,157 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:29:47,158 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:29:54,632 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 05:29:54,633 INFO L272 AbstractInterpreter]: Visited 180 different actions 354 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 05:29:54,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:29:54,639 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 05:29:58,550 INFO L227 lantSequenceWeakener]: Weakened 492 states. On average, predicates are now at 77.45% of their original sizes. [2018-10-27 05:29:58,550 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 05:29:58,629 INFO L415 sIntCurrentIteration]: We unified 494 AI predicates to 494 [2018-10-27 05:29:58,629 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 05:29:58,630 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:29:58,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-10-27 05:29:58,630 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:29:58,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 05:29:58,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 05:29:58,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-10-27 05:29:58,632 INFO L87 Difference]: Start difference. First operand 8781 states and 11840 transitions. Second operand 10 states. [2018-10-27 05:30:26,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:30:26,304 INFO L93 Difference]: Finished difference Result 17003 states and 23090 transitions. [2018-10-27 05:30:26,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 05:30:26,305 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 495 [2018-10-27 05:30:26,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:30:26,339 INFO L225 Difference]: With dead ends: 17003 [2018-10-27 05:30:26,339 INFO L226 Difference]: Without dead ends: 8411 [2018-10-27 05:30:26,363 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 502 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-10-27 05:30:26,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8411 states. [2018-10-27 05:30:26,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8411 to 8408. [2018-10-27 05:30:26,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8408 states. [2018-10-27 05:30:26,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8408 states to 8408 states and 11417 transitions. [2018-10-27 05:30:26,540 INFO L78 Accepts]: Start accepts. Automaton has 8408 states and 11417 transitions. Word has length 495 [2018-10-27 05:30:26,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:30:26,541 INFO L481 AbstractCegarLoop]: Abstraction has 8408 states and 11417 transitions. [2018-10-27 05:30:26,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 05:30:26,541 INFO L276 IsEmpty]: Start isEmpty. Operand 8408 states and 11417 transitions. [2018-10-27 05:30:26,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2018-10-27 05:30:26,587 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:30:26,587 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-10-27 05:30:26,588 INFO L424 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:30:26,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:30:26,589 INFO L82 PathProgramCache]: Analyzing trace with hash 392056957, now seen corresponding path program 1 times [2018-10-27 05:30:26,589 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:30:26,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:30:26,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:30:26,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:30:26,590 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:30:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:30:27,714 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 312 proven. 112 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-10-27 05:30:27,715 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:30:27,715 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:30:27,715 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 532 with the following transitions: [2018-10-27 05:30:27,716 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [894], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-27 05:30:27,721 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:30:27,721 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:30:40,813 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 05:30:40,814 INFO L272 AbstractInterpreter]: Visited 180 different actions 539 times. Merged at 7 different actions 21 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-27 05:30:40,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:30:40,820 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 05:30:42,382 INFO L227 lantSequenceWeakener]: Weakened 528 states. On average, predicates are now at 80.12% of their original sizes. [2018-10-27 05:30:42,382 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 05:30:42,536 INFO L415 sIntCurrentIteration]: We unified 530 AI predicates to 530 [2018-10-27 05:30:42,537 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 05:30:42,537 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:30:42,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-10-27 05:30:42,537 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:30:42,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 05:30:42,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 05:30:42,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-27 05:30:42,538 INFO L87 Difference]: Start difference. First operand 8408 states and 11417 transitions. Second operand 9 states. [2018-10-27 05:31:12,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:31:12,000 INFO L93 Difference]: Finished difference Result 18257 states and 25472 transitions. [2018-10-27 05:31:12,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-27 05:31:12,001 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 531 [2018-10-27 05:31:12,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:31:12,048 INFO L225 Difference]: With dead ends: 18257 [2018-10-27 05:31:12,048 INFO L226 Difference]: Without dead ends: 10223 [2018-10-27 05:31:12,079 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 537 GetRequests, 523 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-10-27 05:31:12,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10223 states. [2018-10-27 05:31:12,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10223 to 9812. [2018-10-27 05:31:12,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9812 states. [2018-10-27 05:31:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9812 states to 9812 states and 13127 transitions. [2018-10-27 05:31:12,283 INFO L78 Accepts]: Start accepts. Automaton has 9812 states and 13127 transitions. Word has length 531 [2018-10-27 05:31:12,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:31:12,284 INFO L481 AbstractCegarLoop]: Abstraction has 9812 states and 13127 transitions. [2018-10-27 05:31:12,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 05:31:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand 9812 states and 13127 transitions. [2018-10-27 05:31:12,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2018-10-27 05:31:12,321 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:31:12,321 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 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] [2018-10-27 05:31:12,322 INFO L424 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:31:12,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:31:12,322 INFO L82 PathProgramCache]: Analyzing trace with hash 2001066597, now seen corresponding path program 1 times [2018-10-27 05:31:12,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:31:12,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:31:12,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:31:12,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:31:12,323 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:31:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:31:13,255 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-27 05:31:13,705 WARN L179 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-27 05:31:14,145 WARN L179 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-27 05:31:14,574 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2018-10-27 05:31:15,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 419 proven. 458 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2018-10-27 05:31:15,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:31:15,246 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:31:15,246 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 605 with the following transitions: [2018-10-27 05:31:15,246 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [894], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-27 05:31:15,250 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:31:15,250 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:31:29,691 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 05:31:29,692 INFO L272 AbstractInterpreter]: Visited 182 different actions 722 times. Merged at 8 different actions 30 times. Never widened. Found 8 fixpoints after 5 different actions. Largest state had 24 variables. [2018-10-27 05:31:29,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:31:29,697 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 05:31:29,697 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:31:29,697 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 05:31:29,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:31:29,708 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 05:31:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:31:29,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:31:30,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 784 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2018-10-27 05:31:30,838 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 05:31:31,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 413 proven. 112 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2018-10-27 05:31:31,771 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 05:31:31,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-10-27 05:31:31,771 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 05:31:31,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-27 05:31:31,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-27 05:31:31,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-10-27 05:31:31,774 INFO L87 Difference]: Start difference. First operand 9812 states and 13127 transitions. Second operand 17 states. [2018-10-27 05:31:39,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:31:39,615 INFO L93 Difference]: Finished difference Result 20352 states and 28589 transitions. [2018-10-27 05:31:39,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-27 05:31:39,616 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 604 [2018-10-27 05:31:39,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:31:39,662 INFO L225 Difference]: With dead ends: 20352 [2018-10-27 05:31:39,662 INFO L226 Difference]: Without dead ends: 9637 [2018-10-27 05:31:39,749 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1264 GetRequests, 1218 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=500, Invalid=1662, Unknown=0, NotChecked=0, Total=2162 [2018-10-27 05:31:39,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9637 states. [2018-10-27 05:31:40,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9637 to 9126. [2018-10-27 05:31:40,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9126 states. [2018-10-27 05:31:40,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9126 states to 9126 states and 10878 transitions. [2018-10-27 05:31:40,108 INFO L78 Accepts]: Start accepts. Automaton has 9126 states and 10878 transitions. Word has length 604 [2018-10-27 05:31:40,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:31:40,109 INFO L481 AbstractCegarLoop]: Abstraction has 9126 states and 10878 transitions. [2018-10-27 05:31:40,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-27 05:31:40,109 INFO L276 IsEmpty]: Start isEmpty. Operand 9126 states and 10878 transitions. [2018-10-27 05:31:40,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2018-10-27 05:31:40,158 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:31:40,158 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2018-10-27 05:31:40,159 INFO L424 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:31:40,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:31:40,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1974834745, now seen corresponding path program 1 times [2018-10-27 05:31:40,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:31:40,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:31:40,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:31:40,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:31:40,161 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:31:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:31:40,653 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-27 05:31:41,616 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-27 05:31:41,894 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-27 05:31:42,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 327 proven. 676 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-10-27 05:31:42,805 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:31:42,805 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:31:42,806 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 733 with the following transitions: [2018-10-27 05:31:42,806 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [894], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-27 05:31:42,809 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:31:42,809 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-27 05:31:48,999 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-27 05:31:49,000 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-27 05:31:49,000 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 05:31:49,000 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:31:49,000 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 05:31:49,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:31:49,052 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 05:31:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:31:49,240 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:31:49,273 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-27 05:31:49,475 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 05:31:49,475 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 05:31:49,481 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 05:31:49,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:31:49 BoogieIcfgContainer [2018-10-27 05:31:49,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:31:49,483 INFO L168 Benchmark]: Toolchain (without parser) took 243777.61 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 524.1 MB. Max. memory is 7.1 GB. [2018-10-27 05:31:49,484 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 05:31:49,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 824.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-27 05:31:49,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 215.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -832.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2018-10-27 05:31:49,487 INFO L168 Benchmark]: Boogie Preprocessor took 107.83 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-27 05:31:49,488 INFO L168 Benchmark]: RCFGBuilder took 3611.22 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 117.6 MB). Peak memory consumption was 117.6 MB. Max. memory is 7.1 GB. [2018-10-27 05:31:49,489 INFO L168 Benchmark]: TraceAbstraction took 239008.06 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 447.1 MB. Max. memory is 7.1 GB. [2018-10-27 05:31:49,502 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 824.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 215.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -832.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.83 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3611.22 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 117.6 MB). Peak memory consumption was 117.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239008.06 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 447.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 64). Cancelled while BasicCegarLoop was analyzing trace of length 733 with TraceHistMax 6,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 11 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 238.9s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 152.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1676 SDtfs, 11838 SDslu, 2170 SDs, 0 SdLazy, 15612 SolverSat, 2683 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 120.8s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 3059 GetRequests, 2934 SyntacticMatches, 5 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9812occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 55.2s AbstIntTime, 6 AbstIntIterations, 4 AbstIntStrong, 0.9975717416976129 AbsIntWeakeningRatio, 0.07759119861030689 AbsIntAvgWeakeningVarsNumRemoved, 16.15170816444702 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 1080 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 3691 NumberOfCodeBlocks, 3691 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 4282 ConstructedInterpolants, 0 QuantifiedInterpolants, 11653151 SizeOfPredicates, 6 NumberOfNonLiveVariables, 901 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 13 InterpolantComputations, 6 PerfectInterpolantSequences, 4136/5368 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown