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/Problem11_label30_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 07:35:27,365 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 07:35:27,368 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 07:35:27,383 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 07:35:27,383 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 07:35:27,384 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 07:35:27,386 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 07:35:27,387 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 07:35:27,389 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 07:35:27,390 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 07:35:27,391 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 07:35:27,391 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 07:35:27,392 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 07:35:27,393 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 07:35:27,395 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 07:35:27,395 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 07:35:27,396 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 07:35:27,398 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 07:35:27,400 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 07:35:27,402 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 07:35:27,403 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 07:35:27,404 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 07:35:27,407 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 07:35:27,407 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 07:35:27,408 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 07:35:27,409 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 07:35:27,410 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 07:35:27,410 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 07:35:27,411 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 07:35:27,413 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 07:35:27,413 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 07:35:27,414 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-27 07:35:27,417 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 07:35:27,441 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 07:35:27,442 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 07:35:27,442 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 07:35:27,443 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 07:35:27,443 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 07:35:27,443 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 07:35:27,443 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 07:35:27,444 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 07:35:27,444 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 07:35:27,444 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 07:35:27,444 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 07:35:27,444 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 07:35:27,444 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 07:35:27,445 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 07:35:27,446 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 07:35:27,446 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 07:35:27,446 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 07:35:27,446 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 07:35:27,447 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 07:35:27,447 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 07:35:27,447 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 07:35:27,447 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 07:35:27,447 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 07:35:27,448 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 07:35:27,448 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 07:35:27,448 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 07:35:27,448 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 07:35:27,449 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 07:35:27,449 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 07:35:27,449 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 07:35:27,449 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 07:35:27,449 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 07:35:27,450 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 07:35:27,450 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 07:35:27,450 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 07:35:27,450 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 07:35:27,493 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 07:35:27,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 07:35:27,510 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 07:35:27,512 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 07:35:27,512 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 07:35:27,513 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label30_true-unreach-call.c [2018-10-27 07:35:27,579 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/112cdc1b4/609c0fe3c3dd468f84488d25d943295c/FLAG86ff0cdec [2018-10-27 07:35:28,172 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 07:35:28,173 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label30_true-unreach-call.c [2018-10-27 07:35:28,189 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/112cdc1b4/609c0fe3c3dd468f84488d25d943295c/FLAG86ff0cdec [2018-10-27 07:35:28,210 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/112cdc1b4/609c0fe3c3dd468f84488d25d943295c [2018-10-27 07:35:28,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 07:35:28,227 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 07:35:28,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 07:35:28,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 07:35:28,234 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 07:35:28,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:35:28" (1/1) ... [2018-10-27 07:35:28,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c6f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:28, skipping insertion in model container [2018-10-27 07:35:28,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:35:28" (1/1) ... [2018-10-27 07:35:28,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 07:35:28,334 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 07:35:28,974 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:35:28,981 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 07:35:29,226 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:35:29,245 INFO L193 MainTranslator]: Completed translation [2018-10-27 07:35:29,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:29 WrapperNode [2018-10-27 07:35:29,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 07:35:29,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 07:35:29,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 07:35:29,247 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 07:35:29,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:29" (1/1) ... [2018-10-27 07:35:29,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:29" (1/1) ... [2018-10-27 07:35:29,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 07:35:29,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 07:35:29,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 07:35:29,548 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 07:35:29,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:29" (1/1) ... [2018-10-27 07:35:29,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:29" (1/1) ... [2018-10-27 07:35:29,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:29" (1/1) ... [2018-10-27 07:35:29,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:29" (1/1) ... [2018-10-27 07:35:29,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:29" (1/1) ... [2018-10-27 07:35:29,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:29" (1/1) ... [2018-10-27 07:35:29,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:29" (1/1) ... [2018-10-27 07:35:29,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 07:35:29,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 07:35:29,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 07:35:29,695 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 07:35:29,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:29" (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 07:35:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 07:35:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 07:35:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 07:35:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 07:35:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 07:35:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 07:35:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 07:35:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 07:35:34,230 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 07:35:34,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:35:34 BoogieIcfgContainer [2018-10-27 07:35:34,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 07:35:34,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 07:35:34,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 07:35:34,242 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 07:35:34,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:35:28" (1/3) ... [2018-10-27 07:35:34,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ded9da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:35:34, skipping insertion in model container [2018-10-27 07:35:34,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:35:29" (2/3) ... [2018-10-27 07:35:34,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ded9da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:35:34, skipping insertion in model container [2018-10-27 07:35:34,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:35:34" (3/3) ... [2018-10-27 07:35:34,248 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label30_true-unreach-call.c [2018-10-27 07:35:34,259 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 07:35:34,274 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 07:35:34,295 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 07:35:34,353 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 07:35:34,354 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 07:35:34,354 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 07:35:34,354 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 07:35:34,355 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 07:35:34,355 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 07:35:34,355 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 07:35:34,355 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 07:35:34,389 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-27 07:35:34,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-27 07:35:34,397 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:35:34,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:35:34,401 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:35:34,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:35:34,408 INFO L82 PathProgramCache]: Analyzing trace with hash 814847676, now seen corresponding path program 1 times [2018-10-27 07:35:34,410 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:35:34,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:35:34,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:35:34,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:35:34,471 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:35:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:35:34,911 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 07:35:34,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:35:34,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 07:35:34,914 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:35:34,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 07:35:34,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 07:35:34,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 07:35:34,936 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-27 07:35:38,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:35:38,597 INFO L93 Difference]: Finished difference Result 1001 states and 1780 transitions. [2018-10-27 07:35:38,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 07:35:38,599 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2018-10-27 07:35:38,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:35:38,623 INFO L225 Difference]: With dead ends: 1001 [2018-10-27 07:35:38,624 INFO L226 Difference]: Without dead ends: 702 [2018-10-27 07:35:38,634 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 07:35:38,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2018-10-27 07:35:38,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 699. [2018-10-27 07:35:38,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2018-10-27 07:35:38,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1082 transitions. [2018-10-27 07:35:38,741 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1082 transitions. Word has length 36 [2018-10-27 07:35:38,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:35:38,742 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 1082 transitions. [2018-10-27 07:35:38,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 07:35:38,742 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1082 transitions. [2018-10-27 07:35:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-27 07:35:38,748 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:35:38,749 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:35:38,749 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:35:38,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:35:38,750 INFO L82 PathProgramCache]: Analyzing trace with hash -25993205, now seen corresponding path program 1 times [2018-10-27 07:35:38,750 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:35:38,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:35:38,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:35:38,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:35:38,752 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:35:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:35:39,117 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:35:39,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:35:39,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:35:39,118 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:35:39,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:35:39,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:35:39,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:35:39,122 INFO L87 Difference]: Start difference. First operand 699 states and 1082 transitions. Second operand 6 states. [2018-10-27 07:35:43,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:35:43,459 INFO L93 Difference]: Finished difference Result 2534 states and 4100 transitions. [2018-10-27 07:35:43,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 07:35:43,464 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-10-27 07:35:43,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:35:43,483 INFO L225 Difference]: With dead ends: 2534 [2018-10-27 07:35:43,483 INFO L226 Difference]: Without dead ends: 1841 [2018-10-27 07:35:43,491 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 07:35:43,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2018-10-27 07:35:43,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1815. [2018-10-27 07:35:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1815 states. [2018-10-27 07:35:43,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2683 transitions. [2018-10-27 07:35:43,594 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2683 transitions. Word has length 109 [2018-10-27 07:35:43,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:35:43,595 INFO L481 AbstractCegarLoop]: Abstraction has 1815 states and 2683 transitions. [2018-10-27 07:35:43,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:35:43,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2683 transitions. [2018-10-27 07:35:43,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-10-27 07:35:43,602 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:35:43,602 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:35:43,603 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:35:43,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:35:43,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1434902368, now seen corresponding path program 1 times [2018-10-27 07:35:43,603 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:35:43,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:35:43,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:35:43,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:35:43,605 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:35:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:35:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:35:43,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:35:43,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 07:35:43,855 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:35:43,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 07:35:43,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 07:35:43,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 07:35:43,856 INFO L87 Difference]: Start difference. First operand 1815 states and 2683 transitions. Second operand 4 states. [2018-10-27 07:35:46,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:35:46,636 INFO L93 Difference]: Finished difference Result 4796 states and 7372 transitions. [2018-10-27 07:35:46,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 07:35:46,637 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2018-10-27 07:35:46,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:35:46,657 INFO L225 Difference]: With dead ends: 4796 [2018-10-27 07:35:46,657 INFO L226 Difference]: Without dead ends: 2987 [2018-10-27 07:35:46,670 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 07:35:46,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2018-10-27 07:35:46,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2970. [2018-10-27 07:35:46,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2970 states. [2018-10-27 07:35:46,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 4362 transitions. [2018-10-27 07:35:46,768 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 4362 transitions. Word has length 110 [2018-10-27 07:35:46,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:35:46,769 INFO L481 AbstractCegarLoop]: Abstraction has 2970 states and 4362 transitions. [2018-10-27 07:35:46,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 07:35:46,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 4362 transitions. [2018-10-27 07:35:46,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-27 07:35:46,775 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:35:46,775 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:35:46,776 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:35:46,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:35:46,776 INFO L82 PathProgramCache]: Analyzing trace with hash 579016823, now seen corresponding path program 1 times [2018-10-27 07:35:46,776 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:35:46,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:35:46,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:35:46,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:35:46,778 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:35:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:35:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:35:46,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:35:46,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:35:46,975 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:35:46,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:35:46,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:35:46,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:35:46,976 INFO L87 Difference]: Start difference. First operand 2970 states and 4362 transitions. Second operand 6 states. [2018-10-27 07:35:51,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:35:51,401 INFO L93 Difference]: Finished difference Result 11412 states and 20997 transitions. [2018-10-27 07:35:51,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 07:35:51,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2018-10-27 07:35:51,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:35:51,498 INFO L225 Difference]: With dead ends: 11412 [2018-10-27 07:35:51,498 INFO L226 Difference]: Without dead ends: 8448 [2018-10-27 07:35:51,584 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 07:35:51,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8448 states. [2018-10-27 07:35:51,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8448 to 7652. [2018-10-27 07:35:51,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7652 states. [2018-10-27 07:35:51,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7652 states to 7652 states and 11186 transitions. [2018-10-27 07:35:51,910 INFO L78 Accepts]: Start accepts. Automaton has 7652 states and 11186 transitions. Word has length 135 [2018-10-27 07:35:51,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:35:51,910 INFO L481 AbstractCegarLoop]: Abstraction has 7652 states and 11186 transitions. [2018-10-27 07:35:51,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:35:51,910 INFO L276 IsEmpty]: Start isEmpty. Operand 7652 states and 11186 transitions. [2018-10-27 07:35:51,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-27 07:35:51,921 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:35:51,921 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-27 07:35:51,922 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:35:51,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:35:51,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1556909905, now seen corresponding path program 1 times [2018-10-27 07:35:51,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:35:51,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:35:51,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:35:51,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:35:51,924 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:35:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:35:52,482 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:35:52,483 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:35:52,483 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 07:35:52,484 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-10-27 07:35:52,487 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [189], [191], [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], [502], [503], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-27 07:35:52,562 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 07:35:52,563 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 07:35:53,056 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 07:35:53,060 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-27 07:35:53,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:35:53,107 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 07:35:53,610 INFO L227 lantSequenceWeakener]: Weakened 174 states. On average, predicates are now at 73.35% of their original sizes. [2018-10-27 07:35:53,610 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 07:35:53,838 INFO L415 sIntCurrentIteration]: We unified 182 AI predicates to 182 [2018-10-27 07:35:53,838 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 07:35:53,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 07:35:53,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-27 07:35:53,839 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:35:53,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:35:53,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:35:53,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:35:53,841 INFO L87 Difference]: Start difference. First operand 7652 states and 11186 transitions. Second operand 6 states. [2018-10-27 07:36:24,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:36:24,640 INFO L93 Difference]: Finished difference Result 15490 states and 22585 transitions. [2018-10-27 07:36:24,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 07:36:24,641 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2018-10-27 07:36:24,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:36:24,689 INFO L225 Difference]: With dead ends: 15490 [2018-10-27 07:36:24,689 INFO L226 Difference]: Without dead ends: 7844 [2018-10-27 07:36:24,713 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 183 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 07:36:24,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7844 states. [2018-10-27 07:36:24,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7844 to 7842. [2018-10-27 07:36:24,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7842 states. [2018-10-27 07:36:24,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7842 states to 7842 states and 11387 transitions. [2018-10-27 07:36:24,953 INFO L78 Accepts]: Start accepts. Automaton has 7842 states and 11387 transitions. Word has length 183 [2018-10-27 07:36:24,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:36:24,954 INFO L481 AbstractCegarLoop]: Abstraction has 7842 states and 11387 transitions. [2018-10-27 07:36:24,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:36:24,954 INFO L276 IsEmpty]: Start isEmpty. Operand 7842 states and 11387 transitions. [2018-10-27 07:36:24,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-10-27 07:36:24,962 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:36:24,963 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:36:24,964 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:36:24,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:36:24,964 INFO L82 PathProgramCache]: Analyzing trace with hash -386225441, now seen corresponding path program 1 times [2018-10-27 07:36:24,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:36:24,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:36:24,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:36:24,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:36:24,966 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:36:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:36:25,462 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:36:25,463 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:36:25,463 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 07:36:25,463 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-10-27 07:36:25,464 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [189], [191], [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], [502], [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], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-27 07:36:25,471 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 07:36:25,472 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 07:36:25,806 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 07:36:25,806 INFO L272 AbstractInterpreter]: Visited 141 different actions 409 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-27 07:36:25,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:36:25,846 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 07:36:25,846 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:36:25,846 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 07:36:25,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:36:25,855 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 07:36:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:36:25,961 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 07:36:26,320 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:36:26,321 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 07:36:27,187 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:36:27,209 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 07:36:27,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-27 07:36:27,210 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 07:36:27,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 07:36:27,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 07:36:27,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-27 07:36:27,211 INFO L87 Difference]: Start difference. First operand 7842 states and 11387 transitions. Second operand 9 states. [2018-10-27 07:36:36,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:36:36,160 INFO L93 Difference]: Finished difference Result 21964 states and 42564 transitions. [2018-10-27 07:36:36,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-27 07:36:36,161 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2018-10-27 07:36:36,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:36:36,302 INFO L225 Difference]: With dead ends: 21964 [2018-10-27 07:36:36,303 INFO L226 Difference]: Without dead ends: 14318 [2018-10-27 07:36:36,475 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 483 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-10-27 07:36:36,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14318 states. [2018-10-27 07:36:37,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14318 to 14159. [2018-10-27 07:36:37,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14159 states. [2018-10-27 07:36:37,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14159 states to 14159 states and 24876 transitions. [2018-10-27 07:36:37,273 INFO L78 Accepts]: Start accepts. Automaton has 14159 states and 24876 transitions. Word has length 240 [2018-10-27 07:36:37,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:36:37,273 INFO L481 AbstractCegarLoop]: Abstraction has 14159 states and 24876 transitions. [2018-10-27 07:36:37,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 07:36:37,273 INFO L276 IsEmpty]: Start isEmpty. Operand 14159 states and 24876 transitions. [2018-10-27 07:36:37,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-10-27 07:36:37,283 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:36:37,284 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-27 07:36:37,284 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:36:37,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:36:37,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1046651030, now seen corresponding path program 1 times [2018-10-27 07:36:37,285 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:36:37,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:36:37,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:36:37,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:36:37,286 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:36:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:36:37,730 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-27 07:36:38,591 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 4 proven. 61 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-10-27 07:36:38,591 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:36:38,591 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 07:36:38,592 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 259 with the following transitions: [2018-10-27 07:36:38,592 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [189], [191], [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], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-27 07:36:38,599 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 07:36:38,599 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 07:36:39,143 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 07:36:39,143 INFO L272 AbstractInterpreter]: Visited 136 different actions 402 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-10-27 07:36:39,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:36:39,169 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 07:36:39,169 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:36:39,169 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 07:36:39,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:36:39,189 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 07:36:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:36:39,303 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 07:36:40,356 WARN L179 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 20 [2018-10-27 07:36:41,285 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 59 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:36:41,286 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 07:36:41,547 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2018-10-27 07:36:42,099 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-27 07:36:42,264 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-27 07:36:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 59 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:36:42,972 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 07:36:42,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 20 [2018-10-27 07:36:42,972 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 07:36:42,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-27 07:36:42,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-27 07:36:42,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-10-27 07:36:42,974 INFO L87 Difference]: Start difference. First operand 14159 states and 24876 transitions. Second operand 15 states. [2018-10-27 07:36:47,923 WARN L179 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2018-10-27 07:36:49,308 WARN L179 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2018-10-27 07:36:50,416 WARN L179 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 30 [2018-10-27 07:36:51,040 WARN L179 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2018-10-27 07:36:51,537 WARN L179 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2018-10-27 07:36:53,248 WARN L179 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2018-10-27 07:36:55,834 WARN L179 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2018-10-27 07:36:57,033 WARN L179 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2018-10-27 07:36:59,404 WARN L179 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2018-10-27 07:37:04,560 WARN L179 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 51 DAG size of output: 32 [2018-10-27 07:37:05,982 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2018-10-27 07:37:14,096 WARN L179 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 27 [2018-10-27 07:37:16,731 WARN L179 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 39 DAG size of output: 25 [2018-10-27 07:37:19,550 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2018-10-27 07:37:22,643 WARN L179 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2018-10-27 07:37:24,370 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 30 [2018-10-27 07:37:39,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:37:39,063 INFO L93 Difference]: Finished difference Result 49118 states and 95983 transitions. [2018-10-27 07:37:39,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2018-10-27 07:37:39,064 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 258 [2018-10-27 07:37:39,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:37:39,421 INFO L225 Difference]: With dead ends: 49118 [2018-10-27 07:37:39,421 INFO L226 Difference]: Without dead ends: 34831 [2018-10-27 07:37:39,584 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 509 SyntacticMatches, 1 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9312 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=2748, Invalid=21432, Unknown=0, NotChecked=0, Total=24180 [2018-10-27 07:37:39,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34831 states. [2018-10-27 07:37:41,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34831 to 34508. [2018-10-27 07:37:41,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34508 states. [2018-10-27 07:37:41,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34508 states to 34508 states and 62600 transitions. [2018-10-27 07:37:41,434 INFO L78 Accepts]: Start accepts. Automaton has 34508 states and 62600 transitions. Word has length 258 [2018-10-27 07:37:41,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:37:41,434 INFO L481 AbstractCegarLoop]: Abstraction has 34508 states and 62600 transitions. [2018-10-27 07:37:41,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-27 07:37:41,435 INFO L276 IsEmpty]: Start isEmpty. Operand 34508 states and 62600 transitions. [2018-10-27 07:37:41,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-10-27 07:37:41,447 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:37:41,447 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-27 07:37:41,447 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:37:41,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:37:41,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1681288795, now seen corresponding path program 1 times [2018-10-27 07:37:41,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:37:41,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:37:41,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:37:41,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:37:41,449 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:37:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:37:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 59 proven. 6 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-10-27 07:37:42,623 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:37:42,623 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 07:37:42,623 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 259 with the following transitions: [2018-10-27 07:37:42,624 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [189], [191], [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], [574], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-27 07:37:42,628 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 07:37:42,629 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 07:37:43,041 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 07:37:43,041 INFO L272 AbstractInterpreter]: Visited 141 different actions 558 times. Merged at 7 different actions 28 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 28 variables. [2018-10-27 07:37:43,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:37:43,079 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 07:37:43,079 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:37:43,079 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 07:37:43,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:37:43,095 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 07:37:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:37:43,176 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 07:37:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:37:43,296 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 07:37:43,422 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:37:43,443 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 07:37:43,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-10-27 07:37:43,443 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 07:37:43,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-27 07:37:43,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-27 07:37:43,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-10-27 07:37:43,444 INFO L87 Difference]: Start difference. First operand 34508 states and 62600 transitions. Second operand 11 states. [2018-10-27 07:37:50,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:37:50,600 INFO L93 Difference]: Finished difference Result 86327 states and 184150 transitions. [2018-10-27 07:37:50,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 07:37:50,600 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 258 [2018-10-27 07:37:50,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:37:51,203 INFO L225 Difference]: With dead ends: 86327 [2018-10-27 07:37:51,203 INFO L226 Difference]: Without dead ends: 50291 [2018-10-27 07:37:51,565 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 518 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2018-10-27 07:37:51,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50291 states. [2018-10-27 07:37:53,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50291 to 49065. [2018-10-27 07:37:53,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49065 states. [2018-10-27 07:37:53,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49065 states to 49065 states and 82804 transitions. [2018-10-27 07:37:53,634 INFO L78 Accepts]: Start accepts. Automaton has 49065 states and 82804 transitions. Word has length 258 [2018-10-27 07:37:53,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:37:53,635 INFO L481 AbstractCegarLoop]: Abstraction has 49065 states and 82804 transitions. [2018-10-27 07:37:53,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-27 07:37:53,635 INFO L276 IsEmpty]: Start isEmpty. Operand 49065 states and 82804 transitions. [2018-10-27 07:37:53,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-10-27 07:37:53,645 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:37:53,645 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-27 07:37:53,646 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:37:53,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:37:53,646 INFO L82 PathProgramCache]: Analyzing trace with hash 48645367, now seen corresponding path program 1 times [2018-10-27 07:37:53,646 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:37:53,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:37:53,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:37:53,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:37:53,647 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:37:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:37:53,845 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-10-27 07:37:53,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:37:53,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 07:37:53,846 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:37:53,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 07:37:53,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 07:37:53,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 07:37:53,847 INFO L87 Difference]: Start difference. First operand 49065 states and 82804 transitions. Second operand 3 states. [2018-10-27 07:37:59,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:37:59,945 INFO L93 Difference]: Finished difference Result 109653 states and 188358 transitions. [2018-10-27 07:37:59,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 07:37:59,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 260 [2018-10-27 07:37:59,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:38:00,390 INFO L225 Difference]: With dead ends: 109653 [2018-10-27 07:38:00,390 INFO L226 Difference]: Without dead ends: 58477 [2018-10-27 07:38:00,694 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 07:38:00,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58477 states. [2018-10-27 07:38:02,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58477 to 58283. [2018-10-27 07:38:02,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58283 states. [2018-10-27 07:38:02,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58283 states to 58283 states and 95515 transitions. [2018-10-27 07:38:02,554 INFO L78 Accepts]: Start accepts. Automaton has 58283 states and 95515 transitions. Word has length 260 [2018-10-27 07:38:02,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:38:02,554 INFO L481 AbstractCegarLoop]: Abstraction has 58283 states and 95515 transitions. [2018-10-27 07:38:02,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 07:38:02,554 INFO L276 IsEmpty]: Start isEmpty. Operand 58283 states and 95515 transitions. [2018-10-27 07:38:02,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-10-27 07:38:02,564 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:38:02,565 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-27 07:38:02,565 INFO L424 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:38:02,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:38:02,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1408350140, now seen corresponding path program 1 times [2018-10-27 07:38:02,566 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:38:02,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:38:02,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:38:02,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:38:02,567 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:38:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:38:03,044 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 65 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:38:03,044 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:38:03,044 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 07:38:03,044 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 264 with the following transitions: [2018-10-27 07:38:03,044 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [189], [191], [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], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-27 07:38:03,049 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 07:38:03,049 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 07:38:03,355 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 07:38:03,356 INFO L272 AbstractInterpreter]: Visited 141 different actions 418 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-10-27 07:38:03,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:38:03,378 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 07:38:03,378 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:38:03,378 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 07:38:03,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:38:03,386 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 07:38:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:38:03,472 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 07:38:04,028 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:38:04,028 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 07:38:04,205 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-10-27 07:38:05,097 WARN L179 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-10-27 07:38:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 59 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:38:05,641 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 07:38:05,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 21 [2018-10-27 07:38:05,641 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 07:38:05,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-27 07:38:05,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-27 07:38:05,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2018-10-27 07:38:05,643 INFO L87 Difference]: Start difference. First operand 58283 states and 95515 transitions. Second operand 16 states. [2018-10-27 07:38:10,809 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2018-10-27 07:38:20,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:38:20,327 INFO L93 Difference]: Finished difference Result 135759 states and 292658 transitions. [2018-10-27 07:38:20,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-10-27 07:38:20,327 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 263 [2018-10-27 07:38:20,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:38:21,504 INFO L225 Difference]: With dead ends: 135759 [2018-10-27 07:38:21,504 INFO L226 Difference]: Without dead ends: 77112 [2018-10-27 07:38:22,040 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 517 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1261 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=929, Invalid=3493, Unknown=0, NotChecked=0, Total=4422 [2018-10-27 07:38:22,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77112 states. [2018-10-27 07:38:25,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77112 to 70100. [2018-10-27 07:38:25,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70100 states. [2018-10-27 07:38:26,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70100 states to 70100 states and 124446 transitions. [2018-10-27 07:38:26,586 INFO L78 Accepts]: Start accepts. Automaton has 70100 states and 124446 transitions. Word has length 263 [2018-10-27 07:38:26,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:38:26,586 INFO L481 AbstractCegarLoop]: Abstraction has 70100 states and 124446 transitions. [2018-10-27 07:38:26,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-27 07:38:26,586 INFO L276 IsEmpty]: Start isEmpty. Operand 70100 states and 124446 transitions. [2018-10-27 07:38:26,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-10-27 07:38:26,596 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:38:26,597 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-27 07:38:26,597 INFO L424 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:38:26,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:38:26,598 INFO L82 PathProgramCache]: Analyzing trace with hash 290792217, now seen corresponding path program 1 times [2018-10-27 07:38:26,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:38:26,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:38:26,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:38:26,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:38:26,599 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:38:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:38:27,595 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 2 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:38:27,595 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:38:27,596 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 07:38:27,596 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-10-27 07:38:27,596 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [189], [191], [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], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [869], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-27 07:38:27,600 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 07:38:27,601 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 07:38:28,009 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 07:38:28,009 INFO L272 AbstractInterpreter]: Visited 157 different actions 468 times. Merged at 7 different actions 21 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 28 variables. [2018-10-27 07:38:28,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:38:28,048 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 07:38:28,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:38:28,048 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 07:38:31,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:38:31,528 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 07:38:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:38:31,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 07:38:31,841 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:38:31,842 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 07:38:32,040 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-10-27 07:38:32,581 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 59 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:38:32,603 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 07:38:32,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 8] total 26 [2018-10-27 07:38:32,604 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 07:38:32,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-27 07:38:32,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-27 07:38:32,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2018-10-27 07:38:32,605 INFO L87 Difference]: Start difference. First operand 70100 states and 124446 transitions. Second operand 21 states. [2018-10-27 07:38:36,613 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2018-10-27 07:38:42,262 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-10-27 07:38:45,338 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2018-10-27 07:38:45,631 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2018-10-27 07:38:47,307 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2018-10-27 07:38:53,289 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-27 07:38:55,508 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 30 [2018-10-27 07:38:57,836 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2018-10-27 07:38:59,384 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2018-10-27 07:39:03,934 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2018-10-27 07:39:04,750 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2018-10-27 07:39:05,346 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-10-27 07:39:07,821 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 Received shutdown request... [2018-10-27 07:39:09,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2018-10-27 07:39:09,648 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 07:39:09,654 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 07:39:09,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:39:09 BoogieIcfgContainer [2018-10-27 07:39:09,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 07:39:09,655 INFO L168 Benchmark]: Toolchain (without parser) took 221430.09 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-27 07:39:09,656 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 07:39:09,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1018.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2018-10-27 07:39:09,658 INFO L168 Benchmark]: Boogie Procedure Inliner took 300.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -835.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-27 07:39:09,659 INFO L168 Benchmark]: Boogie Preprocessor took 146.72 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 07:39:09,659 INFO L168 Benchmark]: RCFGBuilder took 4542.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 176.4 MB). Peak memory consumption was 176.4 MB. Max. memory is 7.1 GB. [2018-10-27 07:39:09,660 INFO L168 Benchmark]: TraceAbstraction took 215416.35 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 2.0 GB in the beginning and 3.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-27 07:39:09,664 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1018.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 300.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -835.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.72 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4542.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 176.4 MB). Peak memory consumption was 176.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215416.35 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 2.0 GB in the beginning and 3.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 93). Cancelled while BasicCegarLoop was constructing difference of abstraction (70100states) and FLOYD_HOARE automaton (currently 134 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (33690 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 215.3s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 180.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2746 SDtfs, 28955 SDslu, 6101 SDs, 0 SdLazy, 65761 SolverSat, 8217 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 114.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 3211 GetRequests, 2770 SyntacticMatches, 10 SemanticMatches, 431 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19007 ImplicationChecksByTransitivity, 33.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70100occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.8s AbstIntTime, 6 AbstIntIterations, 1 AbstIntStrong, 0.9973957452803608 AbsIntWeakeningRatio, 0.15384615384615385 AbsIntAvgWeakeningVarsNumRemoved, 18.060439560439562 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 11.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 9758 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 3429 NumberOfCodeBlocks, 3429 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 4706 ConstructedInterpolants, 7 QuantifiedInterpolants, 9612511 SizeOfPredicates, 10 NumberOfNonLiveVariables, 2334 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 21 InterpolantComputations, 5 PerfectInterpolantSequences, 1880/2578 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown