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/Problem19_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 08:55:10,454 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 08:55:10,457 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 08:55:10,477 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 08:55:10,478 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 08:55:10,479 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 08:55:10,480 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 08:55:10,482 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 08:55:10,484 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 08:55:10,485 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 08:55:10,486 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 08:55:10,486 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 08:55:10,487 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 08:55:10,488 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 08:55:10,489 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 08:55:10,490 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 08:55:10,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 08:55:10,493 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 08:55:10,495 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 08:55:10,497 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 08:55:10,498 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 08:55:10,499 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 08:55:10,502 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 08:55:10,502 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 08:55:10,502 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 08:55:10,503 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 08:55:10,504 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 08:55:10,505 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 08:55:10,506 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 08:55:10,508 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 08:55:10,508 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 08:55:10,509 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-27 08:55:10,511 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 08:55:10,533 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 08:55:10,535 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 08:55:10,536 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 08:55:10,536 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 08:55:10,536 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 08:55:10,536 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 08:55:10,537 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 08:55:10,537 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 08:55:10,537 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 08:55:10,538 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 08:55:10,538 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 08:55:10,538 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 08:55:10,538 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 08:55:10,538 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 08:55:10,539 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 08:55:10,539 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 08:55:10,541 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 08:55:10,541 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 08:55:10,541 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 08:55:10,541 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 08:55:10,542 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 08:55:10,542 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 08:55:10,543 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 08:55:10,543 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 08:55:10,543 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 08:55:10,543 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 08:55:10,543 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:55:10,544 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 08:55:10,544 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 08:55:10,544 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 08:55:10,544 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 08:55:10,544 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 08:55:10,545 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 08:55:10,545 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 08:55:10,545 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 08:55:10,545 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 08:55:10,603 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 08:55:10,622 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 08:55:10,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 08:55:10,629 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 08:55:10,630 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 08:55:10,631 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label35_true-unreach-call.c [2018-10-27 08:55:10,691 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e128f7e05/46a39867d641401b9a3af26f339488d1/FLAGe47c5fd49 [2018-10-27 08:55:11,615 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 08:55:11,617 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label35_true-unreach-call.c [2018-10-27 08:55:11,675 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e128f7e05/46a39867d641401b9a3af26f339488d1/FLAGe47c5fd49 [2018-10-27 08:55:11,696 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e128f7e05/46a39867d641401b9a3af26f339488d1 [2018-10-27 08:55:11,711 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 08:55:11,713 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 08:55:11,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 08:55:11,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 08:55:11,723 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 08:55:11,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:55:11" (1/1) ... [2018-10-27 08:55:11,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6628d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:11, skipping insertion in model container [2018-10-27 08:55:11,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:55:11" (1/1) ... [2018-10-27 08:55:11,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 08:55:12,024 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 08:55:14,104 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:55:14,109 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 08:55:15,196 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:55:15,251 INFO L193 MainTranslator]: Completed translation [2018-10-27 08:55:15,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:15 WrapperNode [2018-10-27 08:55:15,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 08:55:15,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 08:55:15,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 08:55:15,254 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 08:55:15,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:15" (1/1) ... [2018-10-27 08:55:15,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:15" (1/1) ... [2018-10-27 08:55:16,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 08:55:16,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 08:55:16,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 08:55:16,044 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 08:55:16,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:15" (1/1) ... [2018-10-27 08:55:16,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:15" (1/1) ... [2018-10-27 08:55:16,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:15" (1/1) ... [2018-10-27 08:55:16,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:15" (1/1) ... [2018-10-27 08:55:16,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:15" (1/1) ... [2018-10-27 08:55:16,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:15" (1/1) ... [2018-10-27 08:55:16,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:15" (1/1) ... [2018-10-27 08:55:16,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 08:55:16,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 08:55:16,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 08:55:16,507 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 08:55:16,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:15" (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 08:55:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 08:55:16,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 08:55:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-27 08:55:16,585 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-27 08:55:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-27 08:55:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-27 08:55:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 08:55:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 08:55:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 08:55:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 08:55:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 08:55:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 08:55:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 08:55:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 08:55:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 08:55:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 08:55:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 08:55:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 08:55:34,348 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 08:55:34,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:55:34 BoogieIcfgContainer [2018-10-27 08:55:34,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 08:55:34,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 08:55:34,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 08:55:34,355 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 08:55:34,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:55:11" (1/3) ... [2018-10-27 08:55:34,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e52e6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:55:34, skipping insertion in model container [2018-10-27 08:55:34,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:55:15" (2/3) ... [2018-10-27 08:55:34,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e52e6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:55:34, skipping insertion in model container [2018-10-27 08:55:34,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:55:34" (3/3) ... [2018-10-27 08:55:34,359 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label35_true-unreach-call.c [2018-10-27 08:55:34,372 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 08:55:34,391 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 08:55:34,411 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 08:55:34,486 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 08:55:34,487 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 08:55:34,487 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 08:55:34,487 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 08:55:34,487 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 08:55:34,487 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 08:55:34,488 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 08:55:34,488 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 08:55:34,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-27 08:55:34,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-27 08:55:34,578 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:55:34,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:55:34,584 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:55:34,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:55:34,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1096536636, now seen corresponding path program 1 times [2018-10-27 08:55:34,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:55:34,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:55:34,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:55:34,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:55:34,669 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:55:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:55:35,249 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 08:55:35,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:55:35,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 08:55:35,252 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:55:35,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 08:55:35,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 08:55:35,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:55:35,282 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-10-27 08:56:05,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:56:05,591 INFO L93 Difference]: Finished difference Result 6513 states and 12383 transitions. [2018-10-27 08:56:05,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 08:56:05,593 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-10-27 08:56:05,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:56:05,655 INFO L225 Difference]: With dead ends: 6513 [2018-10-27 08:56:05,656 INFO L226 Difference]: Without dead ends: 4729 [2018-10-27 08:56:05,670 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:56:05,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4729 states. [2018-10-27 08:56:05,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4729 to 4693. [2018-10-27 08:56:05,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4693 states. [2018-10-27 08:56:06,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4693 states to 4693 states and 7735 transitions. [2018-10-27 08:56:06,103 INFO L78 Accepts]: Start accepts. Automaton has 4693 states and 7735 transitions. Word has length 46 [2018-10-27 08:56:06,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:56:06,104 INFO L481 AbstractCegarLoop]: Abstraction has 4693 states and 7735 transitions. [2018-10-27 08:56:06,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 08:56:06,105 INFO L276 IsEmpty]: Start isEmpty. Operand 4693 states and 7735 transitions. [2018-10-27 08:56:06,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-10-27 08:56:06,112 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:56:06,113 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, 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 08:56:06,113 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:56:06,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:56:06,115 INFO L82 PathProgramCache]: Analyzing trace with hash 935999737, now seen corresponding path program 1 times [2018-10-27 08:56:06,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:56:06,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:56:06,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:56:06,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:56:06,117 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:56:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:56:06,494 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:56:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:56:06,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:56:06,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:56:06,884 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:56:06,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:56:06,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:56:06,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:56:06,888 INFO L87 Difference]: Start difference. First operand 4693 states and 7735 transitions. Second operand 6 states. [2018-10-27 08:56:39,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:56:39,144 INFO L93 Difference]: Finished difference Result 17886 states and 30173 transitions. [2018-10-27 08:56:39,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:56:39,145 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2018-10-27 08:56:39,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:56:39,222 INFO L225 Difference]: With dead ends: 17886 [2018-10-27 08:56:39,222 INFO L226 Difference]: Without dead ends: 13199 [2018-10-27 08:56:39,245 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:56:39,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13199 states. [2018-10-27 08:56:39,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13199 to 13130. [2018-10-27 08:56:39,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13130 states. [2018-10-27 08:56:39,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13130 states to 13130 states and 19368 transitions. [2018-10-27 08:56:39,785 INFO L78 Accepts]: Start accepts. Automaton has 13130 states and 19368 transitions. Word has length 118 [2018-10-27 08:56:39,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:56:39,786 INFO L481 AbstractCegarLoop]: Abstraction has 13130 states and 19368 transitions. [2018-10-27 08:56:39,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:56:39,786 INFO L276 IsEmpty]: Start isEmpty. Operand 13130 states and 19368 transitions. [2018-10-27 08:56:39,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-27 08:56:39,799 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:56:39,799 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:56:39,799 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:56:39,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:56:39,804 INFO L82 PathProgramCache]: Analyzing trace with hash 2110567223, now seen corresponding path program 1 times [2018-10-27 08:56:39,804 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:56:39,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:56:39,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:56:39,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:56:39,806 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:56:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:56:40,096 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:56:40,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:56:40,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:56:40,097 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:56:40,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:56:40,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:56:40,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:56:40,098 INFO L87 Difference]: Start difference. First operand 13130 states and 19368 transitions. Second operand 6 states. [2018-10-27 08:57:01,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:57:01,168 INFO L93 Difference]: Finished difference Result 39920 states and 60257 transitions. [2018-10-27 08:57:01,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 08:57:01,169 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-10-27 08:57:01,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:57:01,279 INFO L225 Difference]: With dead ends: 39920 [2018-10-27 08:57:01,279 INFO L226 Difference]: Without dead ends: 26796 [2018-10-27 08:57:01,311 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:57:01,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26796 states. [2018-10-27 08:57:01,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26796 to 26557. [2018-10-27 08:57:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26557 states. [2018-10-27 08:57:01,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26557 states to 26557 states and 38668 transitions. [2018-10-27 08:57:01,918 INFO L78 Accepts]: Start accepts. Automaton has 26557 states and 38668 transitions. Word has length 128 [2018-10-27 08:57:01,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:57:01,918 INFO L481 AbstractCegarLoop]: Abstraction has 26557 states and 38668 transitions. [2018-10-27 08:57:01,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:57:01,919 INFO L276 IsEmpty]: Start isEmpty. Operand 26557 states and 38668 transitions. [2018-10-27 08:57:01,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-10-27 08:57:01,923 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:57:01,924 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, 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, 1, 1, 1, 1, 1, 1] [2018-10-27 08:57:01,924 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:57:01,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:57:01,924 INFO L82 PathProgramCache]: Analyzing trace with hash 708423687, now seen corresponding path program 1 times [2018-10-27 08:57:01,925 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:57:01,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:57:01,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:57:01,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:57:01,930 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:57:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:57:02,248 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:57:02,653 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:57:02,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:57:02,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:57:02,654 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:57:02,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:57:02,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:57:02,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:57:02,656 INFO L87 Difference]: Start difference. First operand 26557 states and 38668 transitions. Second operand 6 states. [2018-10-27 08:57:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:57:26,649 INFO L93 Difference]: Finished difference Result 70585 states and 106806 transitions. [2018-10-27 08:57:26,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:57:26,654 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2018-10-27 08:57:26,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:57:26,813 INFO L225 Difference]: With dead ends: 70585 [2018-10-27 08:57:26,813 INFO L226 Difference]: Without dead ends: 44034 [2018-10-27 08:57:27,189 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:57:27,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44034 states. [2018-10-27 08:57:28,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44034 to 43878. [2018-10-27 08:57:28,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43878 states. [2018-10-27 08:57:28,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43878 states to 43878 states and 61142 transitions. [2018-10-27 08:57:28,157 INFO L78 Accepts]: Start accepts. Automaton has 43878 states and 61142 transitions. Word has length 161 [2018-10-27 08:57:28,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:57:28,158 INFO L481 AbstractCegarLoop]: Abstraction has 43878 states and 61142 transitions. [2018-10-27 08:57:28,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:57:28,158 INFO L276 IsEmpty]: Start isEmpty. Operand 43878 states and 61142 transitions. [2018-10-27 08:57:28,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-10-27 08:57:28,164 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:57:28,164 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:57:28,164 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:57:28,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:57:28,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1186440308, now seen corresponding path program 1 times [2018-10-27 08:57:28,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:57:28,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:57:28,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:57:28,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:57:28,172 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:57:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:57:28,461 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:57:28,835 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 78 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 08:57:28,835 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:57:28,836 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:57:28,837 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-10-27 08:57:28,839 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5494], [5496], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5719], [5724], [5726], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5769], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-27 08:57:28,897 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:57:28,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:57:29,389 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:57:29,393 INFO L272 AbstractInterpreter]: Visited 84 different actions 84 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 08:57:29,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:57:29,437 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:57:29,867 INFO L227 lantSequenceWeakener]: Weakened 186 states. On average, predicates are now at 75.58% of their original sizes. [2018-10-27 08:57:29,867 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:57:30,117 INFO L415 sIntCurrentIteration]: We unified 196 AI predicates to 196 [2018-10-27 08:57:30,118 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:57:30,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:57:30,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-27 08:57:30,119 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:57:30,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:57:30,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:57:30,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:57:30,121 INFO L87 Difference]: Start difference. First operand 43878 states and 61142 transitions. Second operand 6 states. Received shutdown request... [2018-10-27 08:59:02,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 08:59:02,497 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 08:59:02,507 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 08:59:02,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:59:02 BoogieIcfgContainer [2018-10-27 08:59:02,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 08:59:02,508 INFO L168 Benchmark]: Toolchain (without parser) took 230796.87 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 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 885.4 MB. Max. memory is 7.1 GB. [2018-10-27 08:59:02,512 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 08:59:02,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3538.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 380.5 MB). Peak memory consumption was 380.5 MB. Max. memory is 7.1 GB. [2018-10-27 08:59:02,513 INFO L168 Benchmark]: Boogie Procedure Inliner took 790.26 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 857.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. [2018-10-27 08:59:02,514 INFO L168 Benchmark]: Boogie Preprocessor took 463.01 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 59.6 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. [2018-10-27 08:59:02,517 INFO L168 Benchmark]: RCFGBuilder took 17842.06 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 176.7 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 489.9 MB). Peak memory consumption was 666.6 MB. Max. memory is 7.1 GB. [2018-10-27 08:59:02,519 INFO L168 Benchmark]: TraceAbstraction took 208157.05 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 3.2 GB in the end (delta: -1.5 GB). Peak memory consumption was 180.9 MB. Max. memory is 7.1 GB. [2018-10-27 08:59:02,529 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 3538.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 380.5 MB). Peak memory consumption was 380.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 790.26 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 857.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 463.01 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 59.6 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17842.06 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 176.7 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 489.9 MB). Peak memory consumption was 666.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208157.05 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 3.2 GB in the end (delta: -1.5 GB). Peak memory consumption was 180.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 133]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 133). Cancelled while BasicCegarLoop was constructing difference of abstraction (43878states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (10125 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 208.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 200.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3270 SDtfs, 29505 SDslu, 3190 SDs, 0 SdLazy, 42205 SolverSat, 11171 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 170.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 233 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43878occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9975867817482726 AbsIntWeakeningRatio, 0.14285714285714285 AbsIntAvgWeakeningVarsNumRemoved, 17.051020408163264 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 500 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 650 NumberOfCodeBlocks, 650 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 645 ConstructedInterpolants, 0 QuantifiedInterpolants, 386373 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 200/265 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown