java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 12:50:58,511 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 12:50:58,514 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 12:50:58,529 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 12:50:58,529 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 12:50:58,530 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 12:50:58,531 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 12:50:58,535 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 12:50:58,537 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 12:50:58,538 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 12:50:58,540 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 12:50:58,541 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 12:50:58,542 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 12:50:58,543 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 12:50:58,544 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 12:50:58,553 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 12:50:58,554 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 12:50:58,556 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 12:50:58,559 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 12:50:58,563 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 12:50:58,567 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 12:50:58,568 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 12:50:58,574 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 12:50:58,574 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 12:50:58,574 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 12:50:58,575 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 12:50:58,576 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 12:50:58,578 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 12:50:58,578 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 12:50:58,579 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 12:50:58,581 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 12:50:58,582 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 12:50:58,582 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 12:50:58,582 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 12:50:58,584 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 12:50:58,587 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 12:50:58,587 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-19 12:50:58,604 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 12:50:58,604 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 12:50:58,607 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 12:50:58,607 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 12:50:58,607 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 12:50:58,608 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 12:50:58,608 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 12:50:58,608 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 12:50:58,608 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 12:50:58,610 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 12:50:58,610 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 12:50:58,610 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 12:50:58,611 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 12:50:58,611 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 12:50:58,611 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 12:50:58,612 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 12:50:58,612 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 12:50:58,612 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 12:50:58,612 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 12:50:58,612 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 12:50:58,613 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 12:50:58,613 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 12:50:58,613 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 12:50:58,613 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 12:50:58,615 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 12:50:58,616 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 12:50:58,616 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 12:50:58,616 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 12:50:58,616 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 12:50:58,616 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 12:50:58,618 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 12:50:58,618 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 12:50:58,618 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 12:50:58,618 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 12:50:58,678 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 12:50:58,692 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 12:50:58,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 12:50:58,700 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 12:50:58,700 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 12:50:58,701 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-09-19 12:50:59,062 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adbd1bcb3/1ed923d5acca42c69bf6d87a281da752/FLAGff94a8a76 [2018-09-19 12:50:59,555 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 12:50:59,556 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-09-19 12:50:59,594 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adbd1bcb3/1ed923d5acca42c69bf6d87a281da752/FLAGff94a8a76 [2018-09-19 12:50:59,615 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adbd1bcb3/1ed923d5acca42c69bf6d87a281da752 [2018-09-19 12:50:59,628 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 12:50:59,632 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 12:50:59,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 12:50:59,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 12:50:59,640 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 12:50:59,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:50:59" (1/1) ... [2018-09-19 12:50:59,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed21f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:59, skipping insertion in model container [2018-09-19 12:50:59,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:50:59" (1/1) ... [2018-09-19 12:50:59,657 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 12:51:01,292 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:51:01,311 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 12:51:01,915 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:51:02,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:51:02 WrapperNode [2018-09-19 12:51:02,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 12:51:02,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 12:51:02,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 12:51:02,335 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 12:51:02,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:51:02" (1/1) ... [2018-09-19 12:51:02,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:51:02" (1/1) ... [2018-09-19 12:51:02,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 12:51:02,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 12:51:02,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 12:51:02,646 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 12:51:03,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:51:02" (1/1) ... [2018-09-19 12:51:03,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:51:02" (1/1) ... [2018-09-19 12:51:03,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:51:02" (1/1) ... [2018-09-19 12:51:03,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:51:02" (1/1) ... [2018-09-19 12:51:03,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:51:02" (1/1) ... [2018-09-19 12:51:03,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:51:02" (1/1) ... [2018-09-19 12:51:03,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:51:02" (1/1) ... [2018-09-19 12:51:03,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 12:51:03,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 12:51:03,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 12:51:03,851 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 12:51:03,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:51:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-09-19 12:51:03,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 12:51:03,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 12:51:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 12:51:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 12:51:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 12:51:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 12:51:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 12:51:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 12:51:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 12:51:03,929 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 12:51:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 12:51:03,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 12:51:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 12:51:03,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 12:51:16,748 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 12:51:16,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:51:16 BoogieIcfgContainer [2018-09-19 12:51:16,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 12:51:16,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 12:51:16,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 12:51:16,754 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 12:51:16,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 12:50:59" (1/3) ... [2018-09-19 12:51:16,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee8a132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:51:16, skipping insertion in model container [2018-09-19 12:51:16,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:51:02" (2/3) ... [2018-09-19 12:51:16,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee8a132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:51:16, skipping insertion in model container [2018-09-19 12:51:16,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:51:16" (3/3) ... [2018-09-19 12:51:16,757 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label10_true-unreach-call.c [2018-09-19 12:51:16,767 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 12:51:16,776 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 12:51:16,851 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 12:51:16,852 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 12:51:16,852 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 12:51:16,853 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 12:51:16,853 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 12:51:16,853 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 12:51:16,853 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 12:51:16,853 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 12:51:16,853 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 12:51:16,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-19 12:51:16,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-19 12:51:16,914 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:16,915 INFO L376 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] [2018-09-19 12:51:16,917 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:16,923 INFO L82 PathProgramCache]: Analyzing trace with hash -2099536220, now seen corresponding path program 1 times [2018-09-19 12:51:16,926 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:16,928 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 55 with the following transitions: [2018-09-19 12:51:16,930 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2959], [2961], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-19 12:51:16,983 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:16,983 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:17,382 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:51:17,383 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 12:51:17,435 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:51:17,684 INFO L232 lantSequenceWeakener]: Weakened 51 states. On average, predicates are now at 72.9% of their original sizes. [2018-09-19 12:51:17,684 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:51:17,969 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:51:17,971 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:51:17,972 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 12:51:17,972 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:51:17,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 12:51:17,985 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 12:51:17,986 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:51:17,989 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-19 12:51:35,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:51:35,214 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-19 12:51:35,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 12:51:35,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2018-09-19 12:51:35,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:51:35,249 INFO L225 Difference]: With dead ends: 3044 [2018-09-19 12:51:35,250 INFO L226 Difference]: Without dead ends: 1922 [2018-09-19 12:51:35,264 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:51:35,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-19 12:51:35,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-19 12:51:35,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-19 12:51:35,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-19 12:51:35,418 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 54 [2018-09-19 12:51:35,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:51:35,419 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-19 12:51:35,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 12:51:35,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-19 12:51:35,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-09-19 12:51:35,429 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:35,432 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:51:35,432 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:35,432 INFO L82 PathProgramCache]: Analyzing trace with hash 524763032, now seen corresponding path program 1 times [2018-09-19 12:51:35,433 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:35,433 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-09-19 12:51:35,434 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2959], [2961], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:51:35,448 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:35,450 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:35,894 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:51:35,895 INFO L272 AbstractInterpreter]: Visited 108 different actions 311 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:51:35,930 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:51:36,255 INFO L232 lantSequenceWeakener]: Weakened 152 states. On average, predicates are now at 71.58% of their original sizes. [2018-09-19 12:51:36,255 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:51:36,778 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:51:36,778 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:51:36,779 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:51:36,779 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:51:36,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:51:36,780 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:51:36,781 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:51:36,781 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-19 12:52:02,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:52:02,654 INFO L93 Difference]: Finished difference Result 3841 states and 6447 transitions. [2018-09-19 12:52:02,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:52:02,655 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 155 [2018-09-19 12:52:02,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:52:02,671 INFO L225 Difference]: With dead ends: 3841 [2018-09-19 12:52:02,672 INFO L226 Difference]: Without dead ends: 2731 [2018-09-19 12:52:02,676 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 161 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:52:02,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2018-09-19 12:52:02,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2726. [2018-09-19 12:52:02,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-19 12:52:02,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3662 transitions. [2018-09-19 12:52:02,740 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3662 transitions. Word has length 155 [2018-09-19 12:52:02,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:52:02,741 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3662 transitions. [2018-09-19 12:52:02,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:52:02,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3662 transitions. [2018-09-19 12:52:02,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-09-19 12:52:02,746 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:52:02,746 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 12:52:02,747 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:52:02,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1930880863, now seen corresponding path program 1 times [2018-09-19 12:52:02,747 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:52:02,747 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-09-19 12:52:02,748 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2959], [2961], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:52:02,754 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:52:02,754 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:52:02,893 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:52:03,240 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:52:03,241 INFO L272 AbstractInterpreter]: Visited 137 different actions 398 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:52:03,278 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:52:03,585 INFO L232 lantSequenceWeakener]: Weakened 181 states. On average, predicates are now at 71.46% of their original sizes. [2018-09-19 12:52:03,585 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:52:04,374 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:52:04,374 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:52:04,374 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:52:04,374 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:52:04,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:52:04,375 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:52:04,376 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:52:04,376 INFO L87 Difference]: Start difference. First operand 2726 states and 3662 transitions. Second operand 10 states. [2018-09-19 12:52:23,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:52:23,678 INFO L93 Difference]: Finished difference Result 4658 states and 7291 transitions. [2018-09-19 12:52:23,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:52:23,680 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 184 [2018-09-19 12:52:23,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:52:23,698 INFO L225 Difference]: With dead ends: 4658 [2018-09-19 12:52:23,698 INFO L226 Difference]: Without dead ends: 3548 [2018-09-19 12:52:23,702 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:52:23,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2018-09-19 12:52:23,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3542. [2018-09-19 12:52:23,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3542 states. [2018-09-19 12:52:23,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 4500 transitions. [2018-09-19 12:52:23,786 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 4500 transitions. Word has length 184 [2018-09-19 12:52:23,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:52:23,787 INFO L480 AbstractCegarLoop]: Abstraction has 3542 states and 4500 transitions. [2018-09-19 12:52:23,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:52:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 4500 transitions. [2018-09-19 12:52:23,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-09-19 12:52:23,799 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:52:23,799 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:52:23,800 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:52:23,800 INFO L82 PathProgramCache]: Analyzing trace with hash -394983932, now seen corresponding path program 1 times [2018-09-19 12:52:23,800 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:52:23,800 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 250 with the following transitions: [2018-09-19 12:52:23,801 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2959], [2961], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:52:23,807 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:52:23,807 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:52:23,949 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:52:24,097 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:52:24,101 INFO L272 AbstractInterpreter]: Visited 109 different actions 423 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:52:24,107 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:52:24,431 INFO L232 lantSequenceWeakener]: Weakened 246 states. On average, predicates are now at 71.33% of their original sizes. [2018-09-19 12:52:24,432 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:52:24,947 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:52:24,948 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:52:24,948 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:52:24,948 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:52:24,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:52:24,949 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:52:24,949 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:52:24,950 INFO L87 Difference]: Start difference. First operand 3542 states and 4500 transitions. Second operand 10 states. [2018-09-19 12:52:47,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:52:47,688 INFO L93 Difference]: Finished difference Result 6286 states and 8969 transitions. [2018-09-19 12:52:47,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:52:47,695 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 249 [2018-09-19 12:52:47,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:52:47,713 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 12:52:47,713 INFO L226 Difference]: Without dead ends: 4360 [2018-09-19 12:52:47,718 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 255 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:52:47,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2018-09-19 12:52:47,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 4349. [2018-09-19 12:52:47,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4349 states. [2018-09-19 12:52:47,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4349 states to 4349 states and 5346 transitions. [2018-09-19 12:52:47,807 INFO L78 Accepts]: Start accepts. Automaton has 4349 states and 5346 transitions. Word has length 249 [2018-09-19 12:52:47,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:52:47,807 INFO L480 AbstractCegarLoop]: Abstraction has 4349 states and 5346 transitions. [2018-09-19 12:52:47,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:52:47,808 INFO L276 IsEmpty]: Start isEmpty. Operand 4349 states and 5346 transitions. [2018-09-19 12:52:47,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-09-19 12:52:47,812 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:52:47,812 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:52:47,813 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:52:47,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1967722516, now seen corresponding path program 1 times [2018-09-19 12:52:47,813 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:52:47,813 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 262 with the following transitions: [2018-09-19 12:52:47,814 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2959], [2961], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:52:47,817 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:52:47,817 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:52:47,963 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:52:48,215 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:52:48,215 INFO L272 AbstractInterpreter]: Visited 114 different actions 554 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:52:48,252 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:52:48,637 INFO L232 lantSequenceWeakener]: Weakened 258 states. On average, predicates are now at 71.31% of their original sizes. [2018-09-19 12:52:48,638 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:52:48,783 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:52:48,784 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:52:48,784 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:52:48,784 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:52:48,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:52:48,785 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:52:48,785 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:52:48,785 INFO L87 Difference]: Start difference. First operand 4349 states and 5346 transitions. Second operand 10 states. [2018-09-19 12:53:01,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:01,625 INFO L93 Difference]: Finished difference Result 7115 states and 9845 transitions. [2018-09-19 12:53:01,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 12:53:01,627 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 261 [2018-09-19 12:53:01,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:01,645 INFO L225 Difference]: With dead ends: 7115 [2018-09-19 12:53:01,645 INFO L226 Difference]: Without dead ends: 5189 [2018-09-19 12:53:01,651 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 268 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:53:01,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5189 states. [2018-09-19 12:53:01,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5189 to 5167. [2018-09-19 12:53:01,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5167 states. [2018-09-19 12:53:01,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 6284 transitions. [2018-09-19 12:53:01,757 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 6284 transitions. Word has length 261 [2018-09-19 12:53:01,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:01,758 INFO L480 AbstractCegarLoop]: Abstraction has 5167 states and 6284 transitions. [2018-09-19 12:53:01,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:01,758 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 6284 transitions. [2018-09-19 12:53:01,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-09-19 12:53:01,763 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:01,763 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 12:53:01,764 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:01,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1189123284, now seen corresponding path program 1 times [2018-09-19 12:53:01,764 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:01,764 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 278 with the following transitions: [2018-09-19 12:53:01,765 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2959], [2961], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3572], [3576], [3580], [3591], [3595], [3599], [3603], [3614], [3618], [3622], [3626], [3630], [3634], [3638], [3642], [3646], [3650], [3654], [3658], [3662], [3666], [3670], [3674], [3678], [3682], [3686], [3690], [3694], [3698], [3709], [3713], [3717], [3721], [3725], [3729], [3733], [3737], [3741], [3745], [3749], [3753], [3757], [3768], [3772], [3776], [3780], [3784], [3788], [3792], [3796], [3800], [3804], [3815], [3819], [3823], [3827], [3831], [3835], [3839], [3843], [3847], [3851], [3862], [3865], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:01,770 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:01,770 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:02,010 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:02,458 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:02,458 INFO L272 AbstractInterpreter]: Visited 230 different actions 677 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:53:02,484 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:02,915 INFO L232 lantSequenceWeakener]: Weakened 274 states. On average, predicates are now at 71.25% of their original sizes. [2018-09-19 12:53:02,916 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:03,094 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:03,094 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:03,094 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:03,095 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:03,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:03,095 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:03,095 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:03,096 INFO L87 Difference]: Start difference. First operand 5167 states and 6284 transitions. Second operand 10 states. [2018-09-19 12:53:19,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:19,418 INFO L93 Difference]: Finished difference Result 9545 states and 12511 transitions. [2018-09-19 12:53:19,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:53:19,419 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 277 [2018-09-19 12:53:19,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:19,440 INFO L225 Difference]: With dead ends: 9545 [2018-09-19 12:53:19,441 INFO L226 Difference]: Without dead ends: 6800 [2018-09-19 12:53:19,446 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 283 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:53:19,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6800 states. [2018-09-19 12:53:19,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6800 to 6794. [2018-09-19 12:53:19,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6794 states. [2018-09-19 12:53:19,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 7947 transitions. [2018-09-19 12:53:19,570 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 7947 transitions. Word has length 277 [2018-09-19 12:53:19,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:19,571 INFO L480 AbstractCegarLoop]: Abstraction has 6794 states and 7947 transitions. [2018-09-19 12:53:19,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:19,571 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 7947 transitions. [2018-09-19 12:53:19,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-09-19 12:53:19,577 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:19,577 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:53:19,577 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:19,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1757219989, now seen corresponding path program 1 times [2018-09-19 12:53:19,578 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:19,578 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 286 with the following transitions: [2018-09-19 12:53:19,578 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2959], [2961], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:19,581 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:19,582 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:19,700 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:20,123 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:20,123 INFO L272 AbstractInterpreter]: Visited 138 different actions 675 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:53:20,156 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:20,564 INFO L232 lantSequenceWeakener]: Weakened 282 states. On average, predicates are now at 71.27% of their original sizes. [2018-09-19 12:53:20,565 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:20,859 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:20,859 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:20,859 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:20,859 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:20,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:20,860 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:20,860 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:20,860 INFO L87 Difference]: Start difference. First operand 6794 states and 7947 transitions. Second operand 10 states. [2018-09-19 12:53:37,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:37,836 INFO L93 Difference]: Finished difference Result 13654 states and 16856 transitions. [2018-09-19 12:53:37,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:53:37,837 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 285 [2018-09-19 12:53:37,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:37,861 INFO L225 Difference]: With dead ends: 13654 [2018-09-19 12:53:37,861 INFO L226 Difference]: Without dead ends: 9279 [2018-09-19 12:53:37,870 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 292 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:53:37,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9279 states. [2018-09-19 12:53:38,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9279 to 9252. [2018-09-19 12:53:38,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9252 states. [2018-09-19 12:53:38,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9252 states to 9252 states and 10537 transitions. [2018-09-19 12:53:38,026 INFO L78 Accepts]: Start accepts. Automaton has 9252 states and 10537 transitions. Word has length 285 [2018-09-19 12:53:38,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:38,026 INFO L480 AbstractCegarLoop]: Abstraction has 9252 states and 10537 transitions. [2018-09-19 12:53:38,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:38,027 INFO L276 IsEmpty]: Start isEmpty. Operand 9252 states and 10537 transitions. [2018-09-19 12:53:38,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2018-09-19 12:53:38,033 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:38,034 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:53:38,034 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:38,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1815673424, now seen corresponding path program 1 times [2018-09-19 12:53:38,034 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:38,034 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 328 with the following transitions: [2018-09-19 12:53:38,035 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2959], [2961], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3159], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:38,037 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:38,037 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:38,194 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:39,543 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:39,543 INFO L272 AbstractInterpreter]: Visited 110 different actions 647 times. Merged at 8 different actions 42 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:53:39,558 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:40,076 INFO L232 lantSequenceWeakener]: Weakened 324 states. On average, predicates are now at 71.24% of their original sizes. [2018-09-19 12:53:40,076 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:40,180 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:40,180 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:40,180 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:40,180 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:40,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:40,181 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:40,181 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:40,182 INFO L87 Difference]: Start difference. First operand 9252 states and 10537 transitions. Second operand 10 states. [2018-09-19 12:53:59,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:59,078 INFO L93 Difference]: Finished difference Result 15294 states and 18522 transitions. [2018-09-19 12:53:59,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:53:59,079 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 327 [2018-09-19 12:53:59,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:59,101 INFO L225 Difference]: With dead ends: 15294 [2018-09-19 12:53:59,102 INFO L226 Difference]: Without dead ends: 10085 [2018-09-19 12:53:59,112 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 333 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:53:59,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10085 states. [2018-09-19 12:53:59,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10085 to 10061. [2018-09-19 12:53:59,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10061 states. [2018-09-19 12:53:59,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 11413 transitions. [2018-09-19 12:53:59,267 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 11413 transitions. Word has length 327 [2018-09-19 12:53:59,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:59,268 INFO L480 AbstractCegarLoop]: Abstraction has 10061 states and 11413 transitions. [2018-09-19 12:53:59,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:59,268 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 11413 transitions. [2018-09-19 12:53:59,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-09-19 12:53:59,275 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:59,276 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2018-09-19 12:53:59,276 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:59,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1521898884, now seen corresponding path program 1 times [2018-09-19 12:53:59,276 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:59,277 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 338 with the following transitions: [2018-09-19 12:53:59,277 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2959], [2961], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:59,279 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:59,280 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:59,432 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:59,844 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:59,844 INFO L272 AbstractInterpreter]: Visited 115 different actions 675 times. Merged at 8 different actions 40 times. Widened at 1 different actions 1 times. Found 9 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:53:59,882 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:54:00,318 INFO L232 lantSequenceWeakener]: Weakened 334 states. On average, predicates are now at 71.23% of their original sizes. [2018-09-19 12:54:00,318 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:54:00,428 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:54:00,428 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:54:00,428 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:54:00,428 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:54:00,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:54:00,429 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:54:00,429 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:54:00,429 INFO L87 Difference]: Start difference. First operand 10061 states and 11413 transitions. Second operand 10 states. [2018-09-19 12:54:22,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:54:22,066 INFO L93 Difference]: Finished difference Result 17756 states and 21202 transitions. [2018-09-19 12:54:22,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:54:22,067 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 337 [2018-09-19 12:54:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:54:22,096 INFO L225 Difference]: With dead ends: 17756 [2018-09-19 12:54:22,097 INFO L226 Difference]: Without dead ends: 11734 [2018-09-19 12:54:22,110 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 344 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:54:22,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2018-09-19 12:54:22,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11704. [2018-09-19 12:54:22,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11704 states. [2018-09-19 12:54:22,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11704 states to 11704 states and 13240 transitions. [2018-09-19 12:54:22,584 INFO L78 Accepts]: Start accepts. Automaton has 11704 states and 13240 transitions. Word has length 337 [2018-09-19 12:54:22,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:54:22,585 INFO L480 AbstractCegarLoop]: Abstraction has 11704 states and 13240 transitions. [2018-09-19 12:54:22,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:54:22,586 INFO L276 IsEmpty]: Start isEmpty. Operand 11704 states and 13240 transitions. [2018-09-19 12:54:22,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-09-19 12:54:22,593 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:54:22,594 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:54:22,594 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:54:22,594 INFO L82 PathProgramCache]: Analyzing trace with hash -638477461, now seen corresponding path program 1 times [2018-09-19 12:54:22,594 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:54:22,595 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 353 with the following transitions: [2018-09-19 12:54:22,595 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2959], [2961], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3210], [3213], [3217], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:54:22,597 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:54:22,598 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:54:22,733 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:54:23,070 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:54:23,071 INFO L272 AbstractInterpreter]: Visited 117 different actions 679 times. Merged at 8 different actions 40 times. Widened at 1 different actions 1 times. Found 8 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:54:23,109 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:54:23,586 INFO L232 lantSequenceWeakener]: Weakened 349 states. On average, predicates are now at 71.27% of their original sizes. [2018-09-19 12:54:23,586 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:54:24,103 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:54:24,103 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:54:24,103 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 12:54:24,103 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:54:24,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 12:54:24,104 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 12:54:24,104 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-09-19 12:54:24,104 INFO L87 Difference]: Start difference. First operand 11704 states and 13240 transitions. Second operand 12 states. Received shutdown request... [2018-09-19 12:54:59,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-19 12:54:59,975 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 12:54:59,980 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 12:54:59,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 12:54:59 BoogieIcfgContainer [2018-09-19 12:54:59,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 12:54:59,981 INFO L168 Benchmark]: Toolchain (without parser) took 240352.32 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 937.6 MB. Max. memory is 7.1 GB. [2018-09-19 12:54:59,983 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 12:54:59,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2701.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:54:59,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 311.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:54:59,985 INFO L168 Benchmark]: Boogie Preprocessor took 1204.50 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 997.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:54:59,986 INFO L168 Benchmark]: RCFGBuilder took 12898.64 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 165.2 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -22.6 MB). Peak memory consumption was 760.6 MB. Max. memory is 7.1 GB. [2018-09-19 12:54:59,987 INFO L168 Benchmark]: TraceAbstraction took 223230.36 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 2.8 GB in the end (delta: -495.2 MB). Peak memory consumption was 722.7 MB. Max. memory is 7.1 GB. [2018-09-19 12:54:59,992 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2701.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 311.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1204.50 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 997.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12898.64 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 165.2 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -22.6 MB). Peak memory consumption was 760.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 223230.36 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 2.8 GB in the end (delta: -495.2 MB). Peak memory consumption was 722.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 153]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 153). Cancelled while BasicCegarLoop was constructing difference of abstraction (11704states) and FLOYD_HOARE automaton (currently 37 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (19750 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 223.1s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 207.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12090 SDtfs, 26172 SDslu, 10377 SDs, 0 SdLazy, 124817 SolverSat, 9164 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 180.6s Time, PredicateUnifierStatistics: 20 DeclaredPredicates, 2556 GetRequests, 2393 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11704occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.2s AbstIntTime, 10 AbstIntIterations, 10 AbstIntStrong, 0.9974216937556031 AbsIntWeakeningRatio, 0.10562525293403481 AbsIntAvgWeakeningVarsNumRemoved, 23.37515176042088 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 133 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label10_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_12-55-00-008.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label10_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_12-55-00-008.csv Completed graceful shutdown