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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label51_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 22:09:48,410 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 22:09:48,412 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 22:09:48,426 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 22:09:48,427 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 22:09:48,428 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 22:09:48,429 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 22:09:48,430 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 22:09:48,432 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 22:09:48,433 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 22:09:48,434 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 22:09:48,434 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 22:09:48,435 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 22:09:48,436 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 22:09:48,437 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 22:09:48,438 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 22:09:48,438 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 22:09:48,440 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 22:09:48,442 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 22:09:48,444 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 22:09:48,445 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 22:09:48,446 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 22:09:48,448 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 22:09:48,449 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 22:09:48,449 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 22:09:48,450 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 22:09:48,451 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 22:09:48,451 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 22:09:48,452 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 22:09:48,453 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 22:09:48,453 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 22:09:48,454 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-23 22:09:48,454 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 22:09:48,455 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 22:09:48,456 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 22:09:48,458 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 22:09:48,459 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 22:09:48,490 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 22:09:48,493 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 22:09:48,494 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 22:09:48,494 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 22:09:48,494 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 22:09:48,494 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 22:09:48,495 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 22:09:48,495 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 22:09:48,495 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 22:09:48,495 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 22:09:48,495 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 22:09:48,496 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 22:09:48,496 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 22:09:48,496 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 22:09:48,497 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 22:09:48,497 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 22:09:48,498 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 22:09:48,498 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 22:09:48,498 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 22:09:48,498 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 22:09:48,498 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 22:09:48,499 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 22:09:48,499 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 22:09:48,499 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 22:09:48,499 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:09:48,499 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 22:09:48,500 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 22:09:48,501 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 22:09:48,501 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 22:09:48,502 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 22:09:48,502 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 22:09:48,502 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 22:09:48,502 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 22:09:48,502 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 22:09:48,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 22:09:48,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 22:09:48,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 22:09:48,585 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 22:09:48,586 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 22:09:48,587 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label51_false-unreach-call.c [2018-10-23 22:09:48,642 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/81f9ca9a1/43be2cab6cb34e79a580b239925a2fbe/FLAGab94493a0 [2018-10-23 22:09:49,197 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 22:09:49,198 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label51_false-unreach-call.c [2018-10-23 22:09:49,213 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/81f9ca9a1/43be2cab6cb34e79a580b239925a2fbe/FLAGab94493a0 [2018-10-23 22:09:49,228 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/81f9ca9a1/43be2cab6cb34e79a580b239925a2fbe [2018-10-23 22:09:49,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 22:09:49,241 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 22:09:49,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 22:09:49,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 22:09:49,246 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 22:09:49,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:09:49" (1/1) ... [2018-10-23 22:09:49,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e4a3aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:49, skipping insertion in model container [2018-10-23 22:09:49,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:09:49" (1/1) ... [2018-10-23 22:09:49,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 22:09:49,355 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 22:09:50,062 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:09:50,067 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 22:09:50,247 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:09:50,269 INFO L193 MainTranslator]: Completed translation [2018-10-23 22:09:50,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:50 WrapperNode [2018-10-23 22:09:50,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 22:09:50,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 22:09:50,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 22:09:50,271 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 22:09:50,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:50" (1/1) ... [2018-10-23 22:09:50,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:50" (1/1) ... [2018-10-23 22:09:50,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 22:09:50,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 22:09:50,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 22:09:50,604 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 22:09:50,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:50" (1/1) ... [2018-10-23 22:09:50,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:50" (1/1) ... [2018-10-23 22:09:50,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:50" (1/1) ... [2018-10-23 22:09:50,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:50" (1/1) ... [2018-10-23 22:09:50,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:50" (1/1) ... [2018-10-23 22:09:50,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:50" (1/1) ... [2018-10-23 22:09:50,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:50" (1/1) ... [2018-10-23 22:09:50,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 22:09:50,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 22:09:50,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 22:09:50,729 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 22:09:50,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:50" (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 [2018-10-23 22:09:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 22:09:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 22:09:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 22:09:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 22:09:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 22:09:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 22:09:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 22:09:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 22:09:55,708 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 22:09:55,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:09:55 BoogieIcfgContainer [2018-10-23 22:09:55,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 22:09:55,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 22:09:55,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 22:09:55,714 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 22:09:55,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:09:49" (1/3) ... [2018-10-23 22:09:55,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e64d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:09:55, skipping insertion in model container [2018-10-23 22:09:55,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:09:50" (2/3) ... [2018-10-23 22:09:55,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e64d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:09:55, skipping insertion in model container [2018-10-23 22:09:55,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:09:55" (3/3) ... [2018-10-23 22:09:55,718 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label51_false-unreach-call.c [2018-10-23 22:09:55,728 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 22:09:55,738 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 22:09:55,757 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 22:09:55,799 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 22:09:55,799 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 22:09:55,799 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 22:09:55,799 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 22:09:55,800 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 22:09:55,800 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 22:09:55,800 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 22:09:55,800 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 22:09:55,830 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-23 22:09:55,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-23 22:09:55,837 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:09:55,838 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:09:55,841 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:09:55,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:09:55,848 INFO L82 PathProgramCache]: Analyzing trace with hash 697929684, now seen corresponding path program 1 times [2018-10-23 22:09:55,851 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:09:55,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:09:55,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:09:55,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:09:55,915 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:09:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:09:56,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:09:56,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:09:56,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 22:09:56,260 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:09:56,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 22:09:56,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 22:09:56,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:09:56,292 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-23 22:10:00,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:10:00,541 INFO L93 Difference]: Finished difference Result 979 states and 1754 transitions. [2018-10-23 22:10:00,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 22:10:00,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-10-23 22:10:00,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:10:00,569 INFO L225 Difference]: With dead ends: 979 [2018-10-23 22:10:00,569 INFO L226 Difference]: Without dead ends: 680 [2018-10-23 22:10:00,579 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 [2018-10-23 22:10:00,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-10-23 22:10:00,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 484. [2018-10-23 22:10:00,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-10-23 22:10:00,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2018-10-23 22:10:00,669 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 18 [2018-10-23 22:10:00,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:10:00,670 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2018-10-23 22:10:00,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 22:10:00,670 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2018-10-23 22:10:00,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-23 22:10:00,675 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:10:00,675 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:10:00,676 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:10:00,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:10:00,676 INFO L82 PathProgramCache]: Analyzing trace with hash 796033475, now seen corresponding path program 1 times [2018-10-23 22:10:00,676 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:10:00,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:10:00,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:10:00,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:10:00,678 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:10:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:10:01,022 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:10:01,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:10:01,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:10:01,023 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:10:01,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:10:01,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:10:01,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:10:01,026 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand 6 states. [2018-10-23 22:10:05,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:10:05,200 INFO L93 Difference]: Finished difference Result 1555 states and 2493 transitions. [2018-10-23 22:10:05,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:10:05,203 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-10-23 22:10:05,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:10:05,213 INFO L225 Difference]: With dead ends: 1555 [2018-10-23 22:10:05,213 INFO L226 Difference]: Without dead ends: 1077 [2018-10-23 22:10:05,216 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 [2018-10-23 22:10:05,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2018-10-23 22:10:05,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1063. [2018-10-23 22:10:05,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-10-23 22:10:05,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1592 transitions. [2018-10-23 22:10:05,276 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1592 transitions. Word has length 91 [2018-10-23 22:10:05,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:10:05,276 INFO L481 AbstractCegarLoop]: Abstraction has 1063 states and 1592 transitions. [2018-10-23 22:10:05,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:10:05,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1592 transitions. [2018-10-23 22:10:05,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-10-23 22:10:05,280 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:10:05,280 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:10:05,281 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:10:05,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:10:05,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1422670888, now seen corresponding path program 1 times [2018-10-23 22:10:05,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:10:05,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:10:05,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:10:05,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:10:05,283 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:10:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:10:05,502 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:10:05,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:10:05,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 22:10:05,503 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:10:05,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 22:10:05,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 22:10:05,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:10:05,504 INFO L87 Difference]: Start difference. First operand 1063 states and 1592 transitions. Second operand 4 states. [2018-10-23 22:10:08,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:10:08,392 INFO L93 Difference]: Finished difference Result 2906 states and 4462 transitions. [2018-10-23 22:10:08,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 22:10:08,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-10-23 22:10:08,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:10:08,417 INFO L225 Difference]: With dead ends: 2906 [2018-10-23 22:10:08,418 INFO L226 Difference]: Without dead ends: 1849 [2018-10-23 22:10:08,424 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 [2018-10-23 22:10:08,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2018-10-23 22:10:08,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1647. [2018-10-23 22:10:08,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1647 states. [2018-10-23 22:10:08,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2425 transitions. [2018-10-23 22:10:08,499 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2425 transitions. Word has length 92 [2018-10-23 22:10:08,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:10:08,500 INFO L481 AbstractCegarLoop]: Abstraction has 1647 states and 2425 transitions. [2018-10-23 22:10:08,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 22:10:08,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2425 transitions. [2018-10-23 22:10:08,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-23 22:10:08,507 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:10:08,510 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:10:08,511 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:10:08,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:10:08,511 INFO L82 PathProgramCache]: Analyzing trace with hash 769801183, now seen corresponding path program 1 times [2018-10-23 22:10:08,511 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:10:08,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:10:08,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:10:08,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:10:08,514 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:10:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:10:08,965 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-23 22:10:09,070 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:10:09,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:10:09,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-23 22:10:09,071 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:10:09,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 22:10:09,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 22:10:09,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-23 22:10:09,072 INFO L87 Difference]: Start difference. First operand 1647 states and 2425 transitions. Second operand 7 states. [2018-10-23 22:10:15,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:10:15,088 INFO L93 Difference]: Finished difference Result 4753 states and 7319 transitions. [2018-10-23 22:10:15,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-23 22:10:15,089 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2018-10-23 22:10:15,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:10:15,116 INFO L225 Difference]: With dead ends: 4753 [2018-10-23 22:10:15,117 INFO L226 Difference]: Without dead ends: 2917 [2018-10-23 22:10:15,131 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-23 22:10:15,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2018-10-23 22:10:15,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2760. [2018-10-23 22:10:15,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2760 states. [2018-10-23 22:10:15,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 3964 transitions. [2018-10-23 22:10:15,239 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 3964 transitions. Word has length 93 [2018-10-23 22:10:15,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:10:15,240 INFO L481 AbstractCegarLoop]: Abstraction has 2760 states and 3964 transitions. [2018-10-23 22:10:15,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 22:10:15,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 3964 transitions. [2018-10-23 22:10:15,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-10-23 22:10:15,247 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:10:15,247 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:10:15,247 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:10:15,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:10:15,248 INFO L82 PathProgramCache]: Analyzing trace with hash 603688054, now seen corresponding path program 1 times [2018-10-23 22:10:15,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:10:15,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:10:15,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:10:15,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:10:15,249 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:10:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:10:15,600 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-23 22:10:15,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:10:15,601 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:10:15,602 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-10-23 22:10:15,604 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [45], [47], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [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], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-23 22:10:15,689 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:10:15,689 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:10:19,721 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:10:34,320 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:10:34,321 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-23 22:10:34,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:10:34,337 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:10:39,290 INFO L232 lantSequenceWeakener]: Weakened 78 states. On average, predicates are now at 73.69% of their original sizes. [2018-10-23 22:10:39,290 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:10:50,154 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:10:50,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:10:50,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-10-23 22:10:50,155 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:10:50,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-23 22:10:50,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-23 22:10:50,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-10-23 22:10:50,159 INFO L87 Difference]: Start difference. First operand 2760 states and 3964 transitions. Second operand 16 states. [2018-10-23 22:13:31,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:13:31,035 INFO L93 Difference]: Finished difference Result 6098 states and 8654 transitions. [2018-10-23 22:13:31,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-23 22:13:31,035 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 210 [2018-10-23 22:13:31,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:13:31,050 INFO L225 Difference]: With dead ends: 6098 [2018-10-23 22:13:31,050 INFO L226 Difference]: Without dead ends: 3344 [2018-10-23 22:13:31,059 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 217 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2018-10-23 22:13:31,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3344 states. [2018-10-23 22:13:31,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3344 to 3331. [2018-10-23 22:13:31,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3331 states. [2018-10-23 22:13:31,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3331 states to 3331 states and 4602 transitions. [2018-10-23 22:13:31,265 INFO L78 Accepts]: Start accepts. Automaton has 3331 states and 4602 transitions. Word has length 210 [2018-10-23 22:13:31,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:13:31,266 INFO L481 AbstractCegarLoop]: Abstraction has 3331 states and 4602 transitions. [2018-10-23 22:13:31,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-23 22:13:31,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3331 states and 4602 transitions. [2018-10-23 22:13:31,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-23 22:13:31,270 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:13:31,271 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:13:31,271 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:13:31,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:13:31,272 INFO L82 PathProgramCache]: Analyzing trace with hash -949463486, now seen corresponding path program 1 times [2018-10-23 22:13:31,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:13:31,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:13:31,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:13:31,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:13:31,273 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:13:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:13:31,623 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-10-23 22:13:31,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:13:31,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 22:13:31,624 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:13:31,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 22:13:31,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 22:13:31,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:13:31,625 INFO L87 Difference]: Start difference. First operand 3331 states and 4602 transitions. Second operand 4 states. [2018-10-23 22:13:34,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:13:34,393 INFO L93 Difference]: Finished difference Result 9176 states and 14111 transitions. [2018-10-23 22:13:34,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 22:13:34,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 220 [2018-10-23 22:13:34,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:13:34,432 INFO L225 Difference]: With dead ends: 9176 [2018-10-23 22:13:34,433 INFO L226 Difference]: Without dead ends: 6422 [2018-10-23 22:13:34,457 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 [2018-10-23 22:13:34,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6422 states. [2018-10-23 22:13:34,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6422 to 6155. [2018-10-23 22:13:34,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6155 states. [2018-10-23 22:13:34,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6155 states to 6155 states and 8823 transitions. [2018-10-23 22:13:34,731 INFO L78 Accepts]: Start accepts. Automaton has 6155 states and 8823 transitions. Word has length 220 [2018-10-23 22:13:34,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:13:34,731 INFO L481 AbstractCegarLoop]: Abstraction has 6155 states and 8823 transitions. [2018-10-23 22:13:34,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 22:13:34,732 INFO L276 IsEmpty]: Start isEmpty. Operand 6155 states and 8823 transitions. [2018-10-23 22:13:34,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-10-23 22:13:34,740 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:13:34,740 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:13:34,741 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:13:34,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:13:34,741 INFO L82 PathProgramCache]: Analyzing trace with hash -2006407324, now seen corresponding path program 1 times [2018-10-23 22:13:34,741 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:13:34,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:13:34,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:13:34,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:13:34,742 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:13:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:13:34,950 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-10-23 22:13:34,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:13:34,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:13:34,950 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:13:34,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:13:34,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:13:34,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:13:34,952 INFO L87 Difference]: Start difference. First operand 6155 states and 8823 transitions. Second operand 3 states. [2018-10-23 22:13:36,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:13:36,626 INFO L93 Difference]: Finished difference Result 16502 states and 25330 transitions. [2018-10-23 22:13:36,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:13:36,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2018-10-23 22:13:36,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:13:36,697 INFO L225 Difference]: With dead ends: 16502 [2018-10-23 22:13:36,697 INFO L226 Difference]: Without dead ends: 10924 [2018-10-23 22:13:36,744 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 [2018-10-23 22:13:36,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10924 states. [2018-10-23 22:13:37,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10924 to 10728. [2018-10-23 22:13:37,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10728 states. [2018-10-23 22:13:37,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10728 states to 10728 states and 15456 transitions. [2018-10-23 22:13:37,164 INFO L78 Accepts]: Start accepts. Automaton has 10728 states and 15456 transitions. Word has length 241 [2018-10-23 22:13:37,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:13:37,165 INFO L481 AbstractCegarLoop]: Abstraction has 10728 states and 15456 transitions. [2018-10-23 22:13:37,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:13:37,165 INFO L276 IsEmpty]: Start isEmpty. Operand 10728 states and 15456 transitions. [2018-10-23 22:13:37,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-10-23 22:13:37,180 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:13:37,180 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 22:13:37,181 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:13:37,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:13:37,181 INFO L82 PathProgramCache]: Analyzing trace with hash 169630205, now seen corresponding path program 1 times [2018-10-23 22:13:37,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:13:37,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:13:37,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:13:37,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:13:37,182 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:13:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:13:37,807 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-23 22:13:37,807 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:13:37,807 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:13:37,807 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 258 with the following transitions: [2018-10-23 22:13:37,808 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [45], [47], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [649], [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] [2018-10-23 22:13:37,815 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:13:37,815 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:13:40,933 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-23 22:13:47,360 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-23 22:13:47,361 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-23 22:13:47,362 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-23 22:13:47,363 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:13:47,363 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 [2018-10-23 22:13:47,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:13:47,380 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-23 22:13:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:13:47,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 22:13:47,574 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-23 22:13:47,775 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 22:13:47,776 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 22:13:47,781 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 22:13:47,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:13:47 BoogieIcfgContainer [2018-10-23 22:13:47,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 22:13:47,782 INFO L168 Benchmark]: Toolchain (without parser) took 238542.34 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 834.4 MB. Max. memory is 7.1 GB. [2018-10-23 22:13:47,784 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 22:13:47,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1028.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-23 22:13:47,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 332.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -821.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-23 22:13:47,786 INFO L168 Benchmark]: Boogie Preprocessor took 125.50 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. [2018-10-23 22:13:47,786 INFO L168 Benchmark]: RCFGBuilder took 4980.02 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: 191.4 MB). Peak memory consumption was 191.4 MB. Max. memory is 7.1 GB. [2018-10-23 22:13:47,787 INFO L168 Benchmark]: TraceAbstraction took 232071.02 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 670.0 MB. Max. memory is 7.1 GB. [2018-10-23 22:13:47,792 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1028.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 332.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -821.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.50 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 4980.02 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: 191.4 MB). Peak memory consumption was 191.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232071.02 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 670.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 39]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 39). Cancelled while BasicCegarLoop was analyzing trace of length 258 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 7 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 231.9s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 183.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1759 SDtfs, 5539 SDslu, 961 SDs, 0 SdLazy, 9935 SolverSat, 2108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 85.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 261 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 16.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10728occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 28.2s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9948292448292448 AbsIntWeakeningRatio, 0.1339712918660287 AbsIntAvgWeakeningVarsNumRemoved, 200.5023923444976 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 1045 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 965 NumberOfCodeBlocks, 965 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 958 ConstructedInterpolants, 0 QuantifiedInterpolants, 442268 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 325/350 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown