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/Problem03_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 00:17:38,526 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 00:17:38,528 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 00:17:38,546 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 00:17:38,546 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 00:17:38,547 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 00:17:38,548 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 00:17:38,550 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 00:17:38,552 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 00:17:38,553 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 00:17:38,554 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 00:17:38,554 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 00:17:38,555 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 00:17:38,556 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 00:17:38,557 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 00:17:38,558 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 00:17:38,559 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 00:17:38,560 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 00:17:38,562 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 00:17:38,564 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 00:17:38,567 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 00:17:38,568 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 00:17:38,576 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 00:17:38,576 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 00:17:38,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 00:17:38,578 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 00:17:38,580 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 00:17:38,584 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 00:17:38,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 00:17:38,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 00:17:38,586 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 00:17:38,587 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-25 00:17:38,590 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 [2018-10-25 00:17:38,614 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 00:17:38,614 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 00:17:38,615 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 00:17:38,615 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 00:17:38,615 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 00:17:38,615 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 00:17:38,616 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 00:17:38,616 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 00:17:38,616 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 00:17:38,616 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 00:17:38,616 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 00:17:38,617 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 00:17:38,617 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 00:17:38,617 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 00:17:38,618 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 00:17:38,618 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 00:17:38,618 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 00:17:38,618 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 00:17:38,618 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 00:17:38,619 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 00:17:38,619 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 00:17:38,619 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 00:17:38,619 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 00:17:38,619 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 00:17:38,620 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 00:17:38,620 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 00:17:38,620 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 00:17:38,620 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 00:17:38,620 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 00:17:38,621 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 00:17:38,621 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 00:17:38,621 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 00:17:38,621 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 00:17:38,621 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 00:17:38,622 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 00:17:38,622 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 00:17:38,685 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 00:17:38,697 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 00:17:38,701 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 00:17:38,703 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 00:17:38,703 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 00:17:38,704 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label47_true-unreach-call.c [2018-10-25 00:17:38,763 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/96a43987c/d14e717fe2004406bae7b5770502fb73/FLAGc302dc24e [2018-10-25 00:17:39,430 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 00:17:39,431 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label47_true-unreach-call.c [2018-10-25 00:17:39,452 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/96a43987c/d14e717fe2004406bae7b5770502fb73/FLAGc302dc24e [2018-10-25 00:17:39,467 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/96a43987c/d14e717fe2004406bae7b5770502fb73 [2018-10-25 00:17:39,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 00:17:39,481 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 00:17:39,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 00:17:39,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 00:17:39,489 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 00:17:39,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:17:39" (1/1) ... [2018-10-25 00:17:39,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379aca2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:39, skipping insertion in model container [2018-10-25 00:17:39,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:17:39" (1/1) ... [2018-10-25 00:17:39,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 00:17:39,607 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 00:17:40,285 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:17:40,292 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 00:17:40,556 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:17:40,584 INFO L193 MainTranslator]: Completed translation [2018-10-25 00:17:40,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:40 WrapperNode [2018-10-25 00:17:40,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 00:17:40,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 00:17:40,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 00:17:40,586 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 00:17:40,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:40" (1/1) ... [2018-10-25 00:17:40,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:40" (1/1) ... [2018-10-25 00:17:40,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 00:17:40,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 00:17:40,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 00:17:40,913 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 00:17:40,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:40" (1/1) ... [2018-10-25 00:17:40,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:40" (1/1) ... [2018-10-25 00:17:40,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:40" (1/1) ... [2018-10-25 00:17:40,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:40" (1/1) ... [2018-10-25 00:17:40,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:40" (1/1) ... [2018-10-25 00:17:41,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:40" (1/1) ... [2018-10-25 00:17:41,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:40" (1/1) ... [2018-10-25 00:17:41,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 00:17:41,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 00:17:41,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 00:17:41,054 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 00:17:41,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:40" (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 [2018-10-25 00:17:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 00:17:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 00:17:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 00:17:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 00:17:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 00:17:41,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 00:17:41,125 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 00:17:41,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 00:17:45,630 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 00:17:45,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:17:45 BoogieIcfgContainer [2018-10-25 00:17:45,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 00:17:45,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 00:17:45,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 00:17:45,636 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 00:17:45,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 12:17:39" (1/3) ... [2018-10-25 00:17:45,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f268be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:17:45, skipping insertion in model container [2018-10-25 00:17:45,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:40" (2/3) ... [2018-10-25 00:17:45,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f268be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:17:45, skipping insertion in model container [2018-10-25 00:17:45,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:17:45" (3/3) ... [2018-10-25 00:17:45,641 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label47_true-unreach-call.c [2018-10-25 00:17:45,651 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 00:17:45,661 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 00:17:45,679 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 00:17:45,728 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 00:17:45,728 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 00:17:45,729 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 00:17:45,729 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 00:17:45,729 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 00:17:45,729 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 00:17:45,729 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 00:17:45,730 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 00:17:45,772 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-25 00:17:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-10-25 00:17:45,793 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:45,794 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:17:45,797 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:45,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:45,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1857262073, now seen corresponding path program 1 times [2018-10-25 00:17:45,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:45,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:45,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:45,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:45,861 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:47,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:17:47,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:17:47,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 00:17:47,046 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:47,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 00:17:47,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 00:17:47,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 00:17:47,072 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-25 00:17:50,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:50,553 INFO L93 Difference]: Finished difference Result 1082 states and 1941 transitions. [2018-10-25 00:17:50,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 00:17:50,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 204 [2018-10-25 00:17:50,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:50,583 INFO L225 Difference]: With dead ends: 1082 [2018-10-25 00:17:50,583 INFO L226 Difference]: Without dead ends: 764 [2018-10-25 00:17:50,592 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 00:17:50,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2018-10-25 00:17:50,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 522. [2018-10-25 00:17:50,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2018-10-25 00:17:50,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 918 transitions. [2018-10-25 00:17:50,685 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 918 transitions. Word has length 204 [2018-10-25 00:17:50,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:50,686 INFO L481 AbstractCegarLoop]: Abstraction has 522 states and 918 transitions. [2018-10-25 00:17:50,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 00:17:50,686 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 918 transitions. [2018-10-25 00:17:50,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-10-25 00:17:50,695 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:50,696 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:17:50,696 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:50,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:50,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1605898472, now seen corresponding path program 1 times [2018-10-25 00:17:50,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:50,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:50,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:50,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:50,698 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:51,013 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 00:17:51,049 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:17:51,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:17:51,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-25 00:17:51,049 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:51,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-25 00:17:51,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-25 00:17:51,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-25 00:17:51,052 INFO L87 Difference]: Start difference. First operand 522 states and 918 transitions. Second operand 5 states. [2018-10-25 00:17:54,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:54,141 INFO L93 Difference]: Finished difference Result 1610 states and 2933 transitions. [2018-10-25 00:17:54,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 00:17:54,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 215 [2018-10-25 00:17:54,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:54,155 INFO L225 Difference]: With dead ends: 1610 [2018-10-25 00:17:54,156 INFO L226 Difference]: Without dead ends: 1094 [2018-10-25 00:17:54,160 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-25 00:17:54,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2018-10-25 00:17:54,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1071. [2018-10-25 00:17:54,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2018-10-25 00:17:54,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1767 transitions. [2018-10-25 00:17:54,241 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1767 transitions. Word has length 215 [2018-10-25 00:17:54,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:54,243 INFO L481 AbstractCegarLoop]: Abstraction has 1071 states and 1767 transitions. [2018-10-25 00:17:54,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-25 00:17:54,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1767 transitions. [2018-10-25 00:17:54,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-10-25 00:17:54,253 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:54,254 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:17:54,255 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:54,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:54,256 INFO L82 PathProgramCache]: Analyzing trace with hash -305112671, now seen corresponding path program 1 times [2018-10-25 00:17:54,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:54,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:54,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:54,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:54,258 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:54,539 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-25 00:17:54,599 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 00:17:54,599 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:17:54,599 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:17:54,600 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-10-25 00:17:54,603 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [16], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1093], [1095], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:17:54,680 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:17:54,681 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:17:55,978 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:17:55,980 INFO L272 AbstractInterpreter]: Visited 205 different actions 205 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-10-25 00:17:56,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:56,025 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:17:57,152 INFO L232 lantSequenceWeakener]: Weakened 214 states. On average, predicates are now at 74.91% of their original sizes. [2018-10-25 00:17:57,152 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:17:57,862 INFO L413 sIntCurrentIteration]: We have 224 unified AI predicates [2018-10-25 00:17:57,863 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:17:57,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:17:57,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-10-25 00:17:57,864 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:57,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-25 00:17:57,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-25 00:17:57,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2018-10-25 00:17:57,866 INFO L87 Difference]: Start difference. First operand 1071 states and 1767 transitions. Second operand 19 states. [2018-10-25 00:18:23,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:18:23,885 INFO L93 Difference]: Finished difference Result 2346 states and 3856 transitions. [2018-10-25 00:18:23,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 00:18:23,885 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 225 [2018-10-25 00:18:23,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:18:23,892 INFO L225 Difference]: With dead ends: 2346 [2018-10-25 00:18:23,893 INFO L226 Difference]: Without dead ends: 1281 [2018-10-25 00:18:23,896 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2018-10-25 00:18:23,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2018-10-25 00:18:23,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1279. [2018-10-25 00:18:23,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1279 states. [2018-10-25 00:18:23,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1984 transitions. [2018-10-25 00:18:23,931 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1984 transitions. Word has length 225 [2018-10-25 00:18:23,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:18:23,931 INFO L481 AbstractCegarLoop]: Abstraction has 1279 states and 1984 transitions. [2018-10-25 00:18:23,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-25 00:18:23,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1984 transitions. [2018-10-25 00:18:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-10-25 00:18:23,938 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:18:23,938 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:18:23,939 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:18:23,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:18:23,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1119915006, now seen corresponding path program 1 times [2018-10-25 00:18:23,940 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:18:23,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:23,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:18:23,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:23,941 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:18:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:18:24,209 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-25 00:18:24,416 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 28 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 00:18:24,417 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:18:24,417 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:18:24,417 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 238 with the following transitions: [2018-10-25 00:18:24,418 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [16], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1093], [1095], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:18:24,429 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:18:24,429 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:18:25,716 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:18:25,716 INFO L272 AbstractInterpreter]: Visited 209 different actions 412 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:18:25,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:18:25,733 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:18:27,038 INFO L232 lantSequenceWeakener]: Weakened 232 states. On average, predicates are now at 74.63% of their original sizes. [2018-10-25 00:18:27,038 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:18:27,804 INFO L413 sIntCurrentIteration]: We have 236 unified AI predicates [2018-10-25 00:18:27,804 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:18:27,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:18:27,804 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [9] total 33 [2018-10-25 00:18:27,804 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:18:27,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-25 00:18:27,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-25 00:18:27,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2018-10-25 00:18:27,806 INFO L87 Difference]: Start difference. First operand 1279 states and 1984 transitions. Second operand 26 states. [2018-10-25 00:19:13,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:19:13,939 INFO L93 Difference]: Finished difference Result 2558 states and 4077 transitions. [2018-10-25 00:19:13,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 00:19:13,939 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 237 [2018-10-25 00:19:13,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:19:13,946 INFO L225 Difference]: With dead ends: 2558 [2018-10-25 00:19:13,947 INFO L226 Difference]: Without dead ends: 1493 [2018-10-25 00:19:13,950 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 245 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=228, Invalid=962, Unknown=0, NotChecked=0, Total=1190 [2018-10-25 00:19:13,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2018-10-25 00:19:13,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1490. [2018-10-25 00:19:13,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2018-10-25 00:19:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2209 transitions. [2018-10-25 00:19:13,988 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2209 transitions. Word has length 237 [2018-10-25 00:19:13,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:19:13,988 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2209 transitions. [2018-10-25 00:19:13,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-10-25 00:19:13,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2209 transitions. [2018-10-25 00:19:13,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-10-25 00:19:13,995 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:19:13,996 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:19:13,996 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:19:13,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:13,996 INFO L82 PathProgramCache]: Analyzing trace with hash 743177465, now seen corresponding path program 1 times [2018-10-25 00:19:13,996 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:19:13,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:13,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:19:13,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:13,998 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:19:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:19:14,304 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:19:14,304 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:19:14,304 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:19:14,305 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 238 with the following transitions: [2018-10-25 00:19:14,305 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1093], [1095], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:19:14,314 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:19:14,314 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:19:19,150 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:19:19,150 INFO L272 AbstractInterpreter]: Visited 211 different actions 627 times. Merged at 7 different actions 19 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 88 variables. [2018-10-25 00:19:19,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:19,159 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:19:19,159 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:19:19,160 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 [2018-10-25 00:19:19,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:19:19,169 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:19:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:19:19,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:19:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:19:19,597 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:19:19,764 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-25 00:19:19,867 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:19:19,889 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 00:19:19,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-10-25 00:19:19,890 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 00:19:19,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-25 00:19:19,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-25 00:19:19,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-25 00:19:19,891 INFO L87 Difference]: Start difference. First operand 1490 states and 2209 transitions. Second operand 8 states. [2018-10-25 00:19:24,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:19:24,613 INFO L93 Difference]: Finished difference Result 4434 states and 7832 transitions. [2018-10-25 00:19:24,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-25 00:19:24,614 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 237 [2018-10-25 00:19:24,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:19:24,642 INFO L225 Difference]: With dead ends: 4434 [2018-10-25 00:19:24,642 INFO L226 Difference]: Without dead ends: 3369 [2018-10-25 00:19:24,660 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2018-10-25 00:19:24,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states. [2018-10-25 00:19:24,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3306. [2018-10-25 00:19:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3306 states. [2018-10-25 00:19:24,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3306 states to 3306 states and 5021 transitions. [2018-10-25 00:19:24,812 INFO L78 Accepts]: Start accepts. Automaton has 3306 states and 5021 transitions. Word has length 237 [2018-10-25 00:19:24,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:19:24,812 INFO L481 AbstractCegarLoop]: Abstraction has 3306 states and 5021 transitions. [2018-10-25 00:19:24,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-25 00:19:24,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3306 states and 5021 transitions. [2018-10-25 00:19:24,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-10-25 00:19:24,840 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:19:24,840 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:19:24,840 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:19:24,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:24,841 INFO L82 PathProgramCache]: Analyzing trace with hash 172246987, now seen corresponding path program 1 times [2018-10-25 00:19:24,841 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:19:24,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:24,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:19:24,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:24,842 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:19:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:19:25,338 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 70 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-25 00:19:25,338 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:19:25,338 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:19:25,339 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-10-25 00:19:25,339 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [68], [71], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1093], [1095], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:19:25,351 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:19:25,351 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:19:30,692 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:19:30,692 INFO L272 AbstractInterpreter]: Visited 212 different actions 630 times. Merged at 7 different actions 19 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 88 variables. [2018-10-25 00:19:30,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:30,730 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:19:30,731 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:19:30,731 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 00:19:30,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:19:30,747 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:19:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:19:30,963 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:19:31,494 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-25 00:19:31,494 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:19:31,652 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-25 00:19:31,674 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 00:19:31,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-25 00:19:31,674 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 00:19:31,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-25 00:19:31,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-25 00:19:31,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-10-25 00:19:31,676 INFO L87 Difference]: Start difference. First operand 3306 states and 5021 transitions. Second operand 9 states. [2018-10-25 00:19:34,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:19:34,693 INFO L93 Difference]: Finished difference Result 8958 states and 15167 transitions. [2018-10-25 00:19:34,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-25 00:19:34,693 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 262 [2018-10-25 00:19:34,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:19:34,731 INFO L225 Difference]: With dead ends: 8958 [2018-10-25 00:19:34,731 INFO L226 Difference]: Without dead ends: 6077 [2018-10-25 00:19:34,759 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 524 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2018-10-25 00:19:34,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6077 states. [2018-10-25 00:19:34,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6077 to 5661. [2018-10-25 00:19:34,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5661 states. [2018-10-25 00:19:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5661 states to 5661 states and 8476 transitions. [2018-10-25 00:19:34,964 INFO L78 Accepts]: Start accepts. Automaton has 5661 states and 8476 transitions. Word has length 262 [2018-10-25 00:19:34,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:19:34,965 INFO L481 AbstractCegarLoop]: Abstraction has 5661 states and 8476 transitions. [2018-10-25 00:19:34,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-25 00:19:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5661 states and 8476 transitions. [2018-10-25 00:19:34,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-10-25 00:19:34,988 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:19:34,988 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:19:34,989 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:19:34,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:34,989 INFO L82 PathProgramCache]: Analyzing trace with hash 601297217, now seen corresponding path program 1 times [2018-10-25 00:19:34,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:19:34,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:34,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:19:34,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:34,990 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:19:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:19:35,393 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-25 00:19:35,393 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:19:35,393 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:19:35,393 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 284 with the following transitions: [2018-10-25 00:19:35,394 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [174], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1093], [1095], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:19:35,400 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:19:35,400 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:19:39,793 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:19:39,793 INFO L272 AbstractInterpreter]: Visited 212 different actions 630 times. Merged at 7 different actions 19 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 88 variables. [2018-10-25 00:19:39,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:39,800 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:19:39,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:19:39,800 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 00:19:39,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:19:39,810 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:19:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:19:40,028 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:19:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-25 00:19:40,488 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:19:40,745 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-25 00:19:40,781 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 00:19:40,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2018-10-25 00:19:40,782 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 00:19:40,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-25 00:19:40,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-25 00:19:40,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-10-25 00:19:40,783 INFO L87 Difference]: Start difference. First operand 5661 states and 8476 transitions. Second operand 8 states. [2018-10-25 00:19:48,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:19:48,195 INFO L93 Difference]: Finished difference Result 21703 states and 37018 transitions. [2018-10-25 00:19:48,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-10-25 00:19:48,195 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 283 [2018-10-25 00:19:48,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:19:48,325 INFO L225 Difference]: With dead ends: 21703 [2018-10-25 00:19:48,326 INFO L226 Difference]: Without dead ends: 16497 [2018-10-25 00:19:48,362 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 586 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=233, Invalid=957, Unknown=0, NotChecked=0, Total=1190 [2018-10-25 00:19:48,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16497 states. [2018-10-25 00:19:49,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16497 to 15959. [2018-10-25 00:19:49,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15959 states. [2018-10-25 00:19:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15959 states to 15959 states and 22857 transitions. [2018-10-25 00:19:49,147 INFO L78 Accepts]: Start accepts. Automaton has 15959 states and 22857 transitions. Word has length 283 [2018-10-25 00:19:49,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:19:49,148 INFO L481 AbstractCegarLoop]: Abstraction has 15959 states and 22857 transitions. [2018-10-25 00:19:49,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-25 00:19:49,148 INFO L276 IsEmpty]: Start isEmpty. Operand 15959 states and 22857 transitions. [2018-10-25 00:19:49,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-10-25 00:19:49,207 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:19:49,207 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:19:49,207 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:19:49,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:49,208 INFO L82 PathProgramCache]: Analyzing trace with hash -2079012350, now seen corresponding path program 1 times [2018-10-25 00:19:49,208 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:19:49,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:49,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:19:49,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:49,209 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:19:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:19:49,728 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:19:49,729 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:19:49,729 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:19:49,729 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 317 with the following transitions: [2018-10-25 00:19:49,730 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [436], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1093], [1095], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:19:49,737 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:19:49,737 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:19:51,598 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:19:51,599 INFO L272 AbstractInterpreter]: Visited 208 different actions 410 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:19:51,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:51,608 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:19:54,870 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 79.28% of their original sizes. [2018-10-25 00:19:54,870 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:20:07,217 INFO L413 sIntCurrentIteration]: We have 315 unified AI predicates [2018-10-25 00:20:07,217 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:20:07,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:20:07,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-10-25 00:20:07,217 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:20:07,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-25 00:20:07,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-25 00:20:07,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-10-25 00:20:07,218 INFO L87 Difference]: Start difference. First operand 15959 states and 22857 transitions. Second operand 15 states. [2018-10-25 00:21:05,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:21:05,141 INFO L93 Difference]: Finished difference Result 37101 states and 54650 transitions. [2018-10-25 00:21:05,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-25 00:21:05,141 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 316 [2018-10-25 00:21:05,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:21:05,231 INFO L225 Difference]: With dead ends: 37101 [2018-10-25 00:21:05,231 INFO L226 Difference]: Without dead ends: 21567 [2018-10-25 00:21:05,282 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 321 GetRequests, 91 SyntacticMatches, 211 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1357 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-10-25 00:21:05,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21567 states. [2018-10-25 00:21:05,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21567 to 21440. [2018-10-25 00:21:05,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21440 states. [2018-10-25 00:21:05,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21440 states to 21440 states and 29946 transitions. [2018-10-25 00:21:05,852 INFO L78 Accepts]: Start accepts. Automaton has 21440 states and 29946 transitions. Word has length 316 [2018-10-25 00:21:05,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:21:05,852 INFO L481 AbstractCegarLoop]: Abstraction has 21440 states and 29946 transitions. [2018-10-25 00:21:05,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-25 00:21:05,853 INFO L276 IsEmpty]: Start isEmpty. Operand 21440 states and 29946 transitions. [2018-10-25 00:21:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-10-25 00:21:05,918 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:21:05,919 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:21:05,919 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:21:05,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:05,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1378315653, now seen corresponding path program 1 times [2018-10-25 00:21:05,920 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:21:05,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:05,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:05,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:05,921 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:21:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:07,054 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 119 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 00:21:07,054 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:21:07,055 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:21:07,055 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 329 with the following transitions: [2018-10-25 00:21:07,055 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [436], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1093], [1095], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:21:07,062 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:21:07,062 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:21:15,183 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:21:15,184 INFO L272 AbstractInterpreter]: Visited 212 different actions 842 times. Merged at 8 different actions 34 times. Never widened. Found 7 fixpoints after 3 different actions. Largest state had 88 variables. [2018-10-25 00:21:15,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:15,193 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:21:15,193 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:21:15,193 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 00:21:15,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:15,201 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:21:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:15,427 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:21:16,119 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-25 00:21:16,119 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:21:16,329 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-25 00:21:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 128 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-25 00:21:16,675 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 00:21:16,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-10-25 00:21:16,675 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 00:21:16,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-25 00:21:16,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-25 00:21:16,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-10-25 00:21:16,676 INFO L87 Difference]: Start difference. First operand 21440 states and 29946 transitions. Second operand 12 states. [2018-10-25 00:21:25,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:21:25,987 INFO L93 Difference]: Finished difference Result 89350 states and 148067 transitions. [2018-10-25 00:21:25,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-10-25 00:21:25,987 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 328 [2018-10-25 00:21:25,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:21:26,399 INFO L225 Difference]: With dead ends: 89350 [2018-10-25 00:21:26,399 INFO L226 Difference]: Without dead ends: 68441 [2018-10-25 00:21:26,561 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 687 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=497, Invalid=1855, Unknown=0, NotChecked=0, Total=2352 [2018-10-25 00:21:26,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68441 states. [2018-10-25 00:21:28,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68441 to 66831. [2018-10-25 00:21:28,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66831 states. [2018-10-25 00:21:28,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66831 states to 66831 states and 104608 transitions. [2018-10-25 00:21:28,853 INFO L78 Accepts]: Start accepts. Automaton has 66831 states and 104608 transitions. Word has length 328 [2018-10-25 00:21:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:21:28,853 INFO L481 AbstractCegarLoop]: Abstraction has 66831 states and 104608 transitions. [2018-10-25 00:21:28,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-25 00:21:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand 66831 states and 104608 transitions. [2018-10-25 00:21:29,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2018-10-25 00:21:29,037 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:21:29,038 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:21:29,038 INFO L424 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:21:29,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:29,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1361035387, now seen corresponding path program 1 times [2018-10-25 00:21:29,038 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:21:29,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:29,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:29,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:29,040 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:21:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:29,397 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 152 proven. 45 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-10-25 00:21:29,398 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:21:29,398 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:21:29,398 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 341 with the following transitions: [2018-10-25 00:21:29,398 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [174], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [276], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1093], [1095], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:21:29,404 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:21:29,404 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-25 00:21:30,448 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-25 00:21:30,448 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-25 00:21:30,449 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-25 00:21:30,449 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:21:30,449 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 00:21:30,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:30,462 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:21:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:30,694 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:21:30,700 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-25 00:21:30,901 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 00:21:30,901 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 00:21:30,908 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 00:21:30,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 12:21:30 BoogieIcfgContainer [2018-10-25 00:21:30,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 00:21:30,909 INFO L168 Benchmark]: Toolchain (without parser) took 231429.04 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-25 00:21:30,910 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. [2018-10-25 00:21:30,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1100.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:30,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 327.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -883.1 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:30,912 INFO L168 Benchmark]: Boogie Preprocessor took 140.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:30,913 INFO L168 Benchmark]: RCFGBuilder took 4577.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 270.4 MB). Peak memory consumption was 270.4 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:30,914 INFO L168 Benchmark]: TraceAbstraction took 225275.76 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -569.7 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-25 00:21:30,918 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 1100.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 327.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -883.1 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4577.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 270.4 MB). Peak memory consumption was 270.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225275.76 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -569.7 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1626]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1626). Cancelled while BasicCegarLoop was analyzing trace of length 341 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 225.1s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 162.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2096 SDtfs, 20513 SDslu, 3686 SDs, 0 SdLazy, 26666 SolverSat, 4857 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 112.9s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 3191 GetRequests, 2788 SyntacticMatches, 215 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2593 ImplicationChecksByTransitivity, 18.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66831occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 28.4s AbstIntTime, 8 AbstIntIterations, 3 AbstIntStrong, 0.9991858226590004 AbsIntWeakeningRatio, 0.26838709677419353 AbsIntAvgWeakeningVarsNumRemoved, 18.067096774193548 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 3024 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 3417 NumberOfCodeBlocks, 3417 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 4510 ConstructedInterpolants, 0 QuantifiedInterpolants, 2203485 SizeOfPredicates, 4 NumberOfNonLiveVariables, 4868 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 17 InterpolantComputations, 2 PerfectInterpolantSequences, 1225/1301 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown