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_label34_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 12:53:05,605 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 12:53:05,608 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 12:53:05,623 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 12:53:05,623 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 12:53:05,624 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 12:53:05,625 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 12:53:05,627 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 12:53:05,629 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 12:53:05,630 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 12:53:05,631 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 12:53:05,631 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 12:53:05,632 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 12:53:05,633 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 12:53:05,634 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 12:53:05,635 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 12:53:05,636 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 12:53:05,638 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 12:53:05,640 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 12:53:05,641 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 12:53:05,642 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 12:53:05,643 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 12:53:05,646 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 12:53:05,646 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 12:53:05,646 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 12:53:05,647 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 12:53:05,648 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 12:53:05,649 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 12:53:05,650 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 12:53:05,653 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 12:53:05,653 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 12:53:05,654 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 12:53:05,654 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 12:53:05,654 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 12:53:05,656 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 12:53:05,657 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 12:53:05,657 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 12:53:05,687 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 12:53:05,687 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 12:53:05,688 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 12:53:05,688 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 12:53:05,688 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 12:53:05,688 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 12:53:05,688 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 12:53:05,689 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 12:53:05,689 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 12:53:05,689 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 12:53:05,689 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 12:53:05,689 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 12:53:05,690 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 12:53:05,690 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 12:53:05,690 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 12:53:05,691 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 12:53:05,691 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 12:53:05,691 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 12:53:05,691 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 12:53:05,691 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 12:53:05,692 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 12:53:05,692 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 12:53:05,692 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 12:53:05,692 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 12:53:05,692 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 12:53:05,693 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 12:53:05,693 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 12:53:05,693 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 12:53:05,693 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 12:53:05,693 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 12:53:05,694 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 12:53:05,694 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 12:53:05,694 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 12:53:05,694 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 12:53:05,743 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 12:53:05,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 12:53:05,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 12:53:05,760 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 12:53:05,761 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 12:53:05,762 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label34_true-unreach-call.c [2018-09-19 12:53:06,106 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee450c93f/5132d3deb5e943c7b273f6a34f66ef5e/FLAGc0994dd72 [2018-09-19 12:53:06,655 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 12:53:06,656 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label34_true-unreach-call.c [2018-09-19 12:53:06,696 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee450c93f/5132d3deb5e943c7b273f6a34f66ef5e/FLAGc0994dd72 [2018-09-19 12:53:06,712 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee450c93f/5132d3deb5e943c7b273f6a34f66ef5e [2018-09-19 12:53:06,724 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 12:53:06,730 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 12:53:06,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 12:53:06,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 12:53:06,738 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 12:53:06,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:53:06" (1/1) ... [2018-09-19 12:53:06,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359f2bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:06, skipping insertion in model container [2018-09-19 12:53:06,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:53:06" (1/1) ... [2018-09-19 12:53:06,756 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 12:53:08,176 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:53:08,195 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 12:53:08,931 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:53:09,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:09 WrapperNode [2018-09-19 12:53:09,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 12:53:09,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 12:53:09,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 12:53:09,269 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 12:53:09,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:09" (1/1) ... [2018-09-19 12:53:09,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:09" (1/1) ... [2018-09-19 12:53:10,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 12:53:10,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 12:53:10,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 12:53:10,381 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 12:53:10,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:09" (1/1) ... [2018-09-19 12:53:10,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:09" (1/1) ... [2018-09-19 12:53:10,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:09" (1/1) ... [2018-09-19 12:53:10,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:09" (1/1) ... [2018-09-19 12:53:10,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:09" (1/1) ... [2018-09-19 12:53:10,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:09" (1/1) ... [2018-09-19 12:53:10,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:09" (1/1) ... [2018-09-19 12:53:10,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 12:53:10,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 12:53:10,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 12:53:10,814 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 12:53:10,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:09" (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 12:53:10,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 12:53:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 12:53:10,885 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 12:53:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 12:53:10,886 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 12:53:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 12:53:10,886 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 12:53:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 12:53:10,886 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 12:53:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 12:53:10,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 12:53:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 12:53:10,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 12:53:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 12:53:22,544 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 12:53:22,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:53:22 BoogieIcfgContainer [2018-09-19 12:53:22,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 12:53:22,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 12:53:22,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 12:53:22,550 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 12:53:22,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 12:53:06" (1/3) ... [2018-09-19 12:53:22,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778234b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:53:22, skipping insertion in model container [2018-09-19 12:53:22,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:53:09" (2/3) ... [2018-09-19 12:53:22,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778234b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:53:22, skipping insertion in model container [2018-09-19 12:53:22,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:53:22" (3/3) ... [2018-09-19 12:53:22,553 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label34_true-unreach-call.c [2018-09-19 12:53:22,563 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 12:53:22,574 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 12:53:22,637 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 12:53:22,637 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 12:53:22,638 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 12:53:22,638 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 12:53:22,638 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 12:53:22,638 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 12:53:22,638 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 12:53:22,638 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 12:53:22,638 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 12:53:22,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-19 12:53:22,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-09-19 12:53:22,703 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:22,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:53:22,706 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:22,711 INFO L82 PathProgramCache]: Analyzing trace with hash 784010707, now seen corresponding path program 1 times [2018-09-19 12:53:22,713 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:22,714 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 64 with the following transitions: [2018-09-19 12:53:22,716 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], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-19 12:53:22,765 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:22,765 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:23,176 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:23,178 INFO L272 AbstractInterpreter]: Visited 62 different actions 62 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 12:53:23,228 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:23,426 INFO L232 lantSequenceWeakener]: Weakened 60 states. On average, predicates are now at 73.22% of their original sizes. [2018-09-19 12:53:23,427 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:23,695 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:23,696 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:23,697 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 12:53:23,697 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:23,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 12:53:23,712 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 12:53:23,713 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:53:23,715 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-19 12:53:35,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:35,350 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-19 12:53:35,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 12:53:35,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2018-09-19 12:53:35,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:35,396 INFO L225 Difference]: With dead ends: 3044 [2018-09-19 12:53:35,396 INFO L226 Difference]: Without dead ends: 1922 [2018-09-19 12:53:35,408 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 62 GetRequests, 58 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 12:53:35,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-19 12:53:35,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-19 12:53:35,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-19 12:53:35,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-19 12:53:35,563 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 63 [2018-09-19 12:53:35,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:35,564 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-19 12:53:35,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 12:53:35,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-19 12:53:35,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-09-19 12:53:35,574 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:35,575 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:53:35,575 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:35,576 INFO L82 PathProgramCache]: Analyzing trace with hash 2033153536, now seen corresponding path program 1 times [2018-09-19 12:53:35,576 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:35,576 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-09-19 12:53:35,577 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], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [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 12:53:35,583 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:35,584 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:35,996 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:35,996 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 12:53:36,035 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:36,368 INFO L232 lantSequenceWeakener]: Weakened 161 states. On average, predicates are now at 71.77% of their original sizes. [2018-09-19 12:53:36,368 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:37,104 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:37,105 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:37,105 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:37,105 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:37,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:37,107 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:37,107 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:37,107 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-19 12:54:03,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:54:03,436 INFO L93 Difference]: Finished difference Result 3841 states and 6447 transitions. [2018-09-19 12:54:03,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:54:03,436 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2018-09-19 12:54:03,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:54:03,450 INFO L225 Difference]: With dead ends: 3841 [2018-09-19 12:54:03,451 INFO L226 Difference]: Without dead ends: 2731 [2018-09-19 12:54:03,456 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 170 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:54:03,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2018-09-19 12:54:03,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2726. [2018-09-19 12:54:03,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-19 12:54:03,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3662 transitions. [2018-09-19 12:54:03,522 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3662 transitions. Word has length 164 [2018-09-19 12:54:03,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:54:03,523 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3662 transitions. [2018-09-19 12:54:03,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:54:03,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3662 transitions. [2018-09-19 12:54:03,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-09-19 12:54:03,528 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:54:03,529 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, 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] [2018-09-19 12:54:03,529 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:54:03,529 INFO L82 PathProgramCache]: Analyzing trace with hash 551156085, now seen corresponding path program 1 times [2018-09-19 12:54:03,530 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:54:03,530 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2018-09-19 12:54:03,530 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], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [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 12:54:03,536 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:54:03,536 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:54:03,676 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:54:03,961 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:54:03,962 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 12:54:03,987 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:54:04,344 INFO L232 lantSequenceWeakener]: Weakened 190 states. On average, predicates are now at 71.63% of their original sizes. [2018-09-19 12:54:04,344 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:54:04,843 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:54:04,843 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:54:04,846 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:54:04,847 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:54:04,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:54:04,848 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:54:04,848 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:54:04,848 INFO L87 Difference]: Start difference. First operand 2726 states and 3662 transitions. Second operand 10 states. [2018-09-19 12:54:16,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:54:16,934 INFO L93 Difference]: Finished difference Result 4658 states and 7291 transitions. [2018-09-19 12:54:16,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:54:16,946 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2018-09-19 12:54:16,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:54:16,965 INFO L225 Difference]: With dead ends: 4658 [2018-09-19 12:54:16,966 INFO L226 Difference]: Without dead ends: 3548 [2018-09-19 12:54:16,970 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 199 GetRequests, 184 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 12:54:16,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2018-09-19 12:54:17,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3542. [2018-09-19 12:54:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3542 states. [2018-09-19 12:54:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 4500 transitions. [2018-09-19 12:54:17,067 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 4500 transitions. Word has length 193 [2018-09-19 12:54:17,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:54:17,068 INFO L480 AbstractCegarLoop]: Abstraction has 3542 states and 4500 transitions. [2018-09-19 12:54:17,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:54:17,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 4500 transitions. [2018-09-19 12:54:17,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-09-19 12:54:17,079 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:54:17,080 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:54:17,081 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:54:17,082 INFO L82 PathProgramCache]: Analyzing trace with hash -940859949, now seen corresponding path program 1 times [2018-09-19 12:54:17,082 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:54:17,082 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 259 with the following transitions: [2018-09-19 12:54:17,083 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], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [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 12:54:17,094 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:54:17,094 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:54:17,266 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:54:17,422 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:54:17,422 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 12:54:17,462 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:54:17,973 INFO L232 lantSequenceWeakener]: Weakened 255 states. On average, predicates are now at 71.46% of their original sizes. [2018-09-19 12:54:17,973 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:54:18,144 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:54:18,144 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:54:18,144 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:54:18,144 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:54:18,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:54:18,145 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:54:18,145 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:54:18,146 INFO L87 Difference]: Start difference. First operand 3542 states and 4500 transitions. Second operand 10 states. [2018-09-19 12:54:37,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:54:37,016 INFO L93 Difference]: Finished difference Result 6286 states and 8969 transitions. [2018-09-19 12:54:37,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:54:37,016 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 258 [2018-09-19 12:54:37,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:54:37,035 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 12:54:37,035 INFO L226 Difference]: Without dead ends: 4360 [2018-09-19 12:54:37,043 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 264 GetRequests, 249 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 12:54:37,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2018-09-19 12:54:37,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 4349. [2018-09-19 12:54:37,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4349 states. [2018-09-19 12:54:37,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4349 states to 4349 states and 5346 transitions. [2018-09-19 12:54:37,152 INFO L78 Accepts]: Start accepts. Automaton has 4349 states and 5346 transitions. Word has length 258 [2018-09-19 12:54:37,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:54:37,158 INFO L480 AbstractCegarLoop]: Abstraction has 4349 states and 5346 transitions. [2018-09-19 12:54:37,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:54:37,158 INFO L276 IsEmpty]: Start isEmpty. Operand 4349 states and 5346 transitions. [2018-09-19 12:54:37,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-09-19 12:54:37,163 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:54:37,164 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:54:37,164 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:54:37,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1061701867, now seen corresponding path program 1 times [2018-09-19 12:54:37,165 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:54:37,165 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 271 with the following transitions: [2018-09-19 12:54:37,165 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], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [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 12:54:37,169 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:54:37,173 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:54:37,339 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:54:37,597 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:54:37,597 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 12:54:37,638 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:54:38,056 INFO L232 lantSequenceWeakener]: Weakened 267 states. On average, predicates are now at 71.43% of their original sizes. [2018-09-19 12:54:38,057 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:54:38,227 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:54:38,227 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:54:38,228 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:54:38,228 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:54:38,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:54:38,229 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:54:38,229 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:54:38,229 INFO L87 Difference]: Start difference. First operand 4349 states and 5346 transitions. Second operand 10 states. [2018-09-19 12:54:54,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:54:54,612 INFO L93 Difference]: Finished difference Result 7115 states and 9845 transitions. [2018-09-19 12:54:54,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 12:54:54,622 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 270 [2018-09-19 12:54:54,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:54:54,647 INFO L225 Difference]: With dead ends: 7115 [2018-09-19 12:54:54,647 INFO L226 Difference]: Without dead ends: 5189 [2018-09-19 12:54:54,653 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 277 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:54:54,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5189 states. [2018-09-19 12:54:54,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5189 to 5167. [2018-09-19 12:54:54,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5167 states. [2018-09-19 12:54:54,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 6284 transitions. [2018-09-19 12:54:54,769 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 6284 transitions. Word has length 270 [2018-09-19 12:54:54,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:54:54,770 INFO L480 AbstractCegarLoop]: Abstraction has 5167 states and 6284 transitions. [2018-09-19 12:54:54,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:54:54,770 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 6284 transitions. [2018-09-19 12:54:54,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-09-19 12:54:54,775 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:54:54,776 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, 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] [2018-09-19 12:54:54,776 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:54:54,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1417163348, now seen corresponding path program 1 times [2018-09-19 12:54:54,777 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:54:54,777 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 287 with the following transitions: [2018-09-19 12:54:54,778 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], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [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 12:54:54,785 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:54:54,785 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:54:55,202 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:54:55,656 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:54:55,657 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 12:54:55,677 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:54:56,089 INFO L232 lantSequenceWeakener]: Weakened 283 states. On average, predicates are now at 71.37% of their original sizes. [2018-09-19 12:54:56,089 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:54:56,279 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:54:56,279 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:54:56,280 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:54:56,280 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:54:56,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:54:56,280 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:54:56,281 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:54:56,281 INFO L87 Difference]: Start difference. First operand 5167 states and 6284 transitions. Second operand 10 states. [2018-09-19 12:55:08,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:55:08,536 INFO L93 Difference]: Finished difference Result 9545 states and 12511 transitions. [2018-09-19 12:55:08,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:55:08,537 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 286 [2018-09-19 12:55:08,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:55:08,561 INFO L225 Difference]: With dead ends: 9545 [2018-09-19 12:55:08,561 INFO L226 Difference]: Without dead ends: 6800 [2018-09-19 12:55:08,568 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 292 GetRequests, 277 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 12:55:08,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6800 states. [2018-09-19 12:55:08,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6800 to 6794. [2018-09-19 12:55:08,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6794 states. [2018-09-19 12:55:08,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 7947 transitions. [2018-09-19 12:55:08,684 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 7947 transitions. Word has length 286 [2018-09-19 12:55:08,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:55:08,686 INFO L480 AbstractCegarLoop]: Abstraction has 6794 states and 7947 transitions. [2018-09-19 12:55:08,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:55:08,686 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 7947 transitions. [2018-09-19 12:55:08,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-09-19 12:55:08,692 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:55:08,692 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:08,692 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:55:08,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1231472030, now seen corresponding path program 1 times [2018-09-19 12:55:08,693 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:55:08,693 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 295 with the following transitions: [2018-09-19 12:55:08,694 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], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [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 12:55:08,697 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:55:08,697 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:55:08,821 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:55:09,180 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:55:09,180 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 12:55:09,220 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:55:09,556 INFO L232 lantSequenceWeakener]: Weakened 291 states. On average, predicates are now at 71.38% of their original sizes. [2018-09-19 12:55:09,556 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:55:09,658 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:55:09,658 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:55:09,658 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:55:09,658 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:55:09,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:55:09,659 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:55:09,659 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:55:09,660 INFO L87 Difference]: Start difference. First operand 6794 states and 7947 transitions. Second operand 10 states. [2018-09-19 12:55:28,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:55:28,104 INFO L93 Difference]: Finished difference Result 13654 states and 16856 transitions. [2018-09-19 12:55:28,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:55:28,106 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 294 [2018-09-19 12:55:28,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:55:28,136 INFO L225 Difference]: With dead ends: 13654 [2018-09-19 12:55:28,136 INFO L226 Difference]: Without dead ends: 9279 [2018-09-19 12:55:28,146 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 301 GetRequests, 285 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 12:55:28,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9279 states. [2018-09-19 12:55:28,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9279 to 9252. [2018-09-19 12:55:28,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9252 states. [2018-09-19 12:55:28,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9252 states to 9252 states and 10537 transitions. [2018-09-19 12:55:28,299 INFO L78 Accepts]: Start accepts. Automaton has 9252 states and 10537 transitions. Word has length 294 [2018-09-19 12:55:28,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:55:28,299 INFO L480 AbstractCegarLoop]: Abstraction has 9252 states and 10537 transitions. [2018-09-19 12:55:28,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:55:28,300 INFO L276 IsEmpty]: Start isEmpty. Operand 9252 states and 10537 transitions. [2018-09-19 12:55:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-09-19 12:55:28,306 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:55:28,307 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, 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, 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 12:55:28,307 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:55:28,307 INFO L82 PathProgramCache]: Analyzing trace with hash 440385926, now seen corresponding path program 1 times [2018-09-19 12:55:28,308 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:55:28,308 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 337 with the following transitions: [2018-09-19 12:55:28,308 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], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [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 12:55:28,310 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:55:28,311 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:55:28,459 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:55:29,802 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:55:29,803 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 12:55:29,820 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:55:30,348 INFO L232 lantSequenceWeakener]: Weakened 333 states. On average, predicates are now at 71.34% of their original sizes. [2018-09-19 12:55:30,348 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:55:30,447 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:55:30,447 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:55:30,448 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:55:30,448 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:55:30,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:55:30,448 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:55:30,449 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:55:30,449 INFO L87 Difference]: Start difference. First operand 9252 states and 10537 transitions. Second operand 10 states. [2018-09-19 12:55:50,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:55:50,679 INFO L93 Difference]: Finished difference Result 15294 states and 18522 transitions. [2018-09-19 12:55:50,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:55:50,679 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 336 [2018-09-19 12:55:50,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:55:50,714 INFO L225 Difference]: With dead ends: 15294 [2018-09-19 12:55:50,714 INFO L226 Difference]: Without dead ends: 10085 [2018-09-19 12:55:50,726 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 342 GetRequests, 327 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 12:55:50,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10085 states. [2018-09-19 12:55:50,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10085 to 10061. [2018-09-19 12:55:50,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10061 states. [2018-09-19 12:55:50,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 11413 transitions. [2018-09-19 12:55:50,885 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 11413 transitions. Word has length 336 [2018-09-19 12:55:50,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:55:50,886 INFO L480 AbstractCegarLoop]: Abstraction has 10061 states and 11413 transitions. [2018-09-19 12:55:50,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:55:50,886 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 11413 transitions. [2018-09-19 12:55:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-09-19 12:55:50,895 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:55:50,895 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, 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, 2, 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 12:55:50,896 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:55:50,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1395023514, now seen corresponding path program 1 times [2018-09-19 12:55:50,896 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:55:50,896 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 347 with the following transitions: [2018-09-19 12:55:50,897 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], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [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 12:55:50,899 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:55:50,899 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:55:51,267 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:55:51,703 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:55:51,703 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 12:55:51,709 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:55:52,090 INFO L232 lantSequenceWeakener]: Weakened 343 states. On average, predicates are now at 71.32% of their original sizes. [2018-09-19 12:55:52,090 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:55:52,194 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:55:52,194 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:55:52,194 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:55:52,194 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:55:52,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:55:52,195 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:55:52,195 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:55:52,195 INFO L87 Difference]: Start difference. First operand 10061 states and 11413 transitions. Second operand 10 states. [2018-09-19 12:56:11,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:56:11,077 INFO L93 Difference]: Finished difference Result 17756 states and 21202 transitions. [2018-09-19 12:56:11,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:56:11,078 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 346 [2018-09-19 12:56:11,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:56:11,104 INFO L225 Difference]: With dead ends: 17756 [2018-09-19 12:56:11,105 INFO L226 Difference]: Without dead ends: 11734 [2018-09-19 12:56:11,116 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 353 GetRequests, 337 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 12:56:11,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2018-09-19 12:56:11,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11704. [2018-09-19 12:56:11,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11704 states. [2018-09-19 12:56:11,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11704 states to 11704 states and 13240 transitions. [2018-09-19 12:56:11,293 INFO L78 Accepts]: Start accepts. Automaton has 11704 states and 13240 transitions. Word has length 346 [2018-09-19 12:56:11,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:56:11,294 INFO L480 AbstractCegarLoop]: Abstraction has 11704 states and 13240 transitions. [2018-09-19 12:56:11,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:56:11,294 INFO L276 IsEmpty]: Start isEmpty. Operand 11704 states and 13240 transitions. [2018-09-19 12:56:11,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2018-09-19 12:56:11,303 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:56:11,303 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, 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, 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 12:56:11,303 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:56:11,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1629988205, now seen corresponding path program 1 times [2018-09-19 12:56:11,304 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:56:11,304 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 362 with the following transitions: [2018-09-19 12:56:11,304 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], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [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 12:56:11,306 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:56:11,307 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:56:11,439 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:56:11,812 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:56:11,813 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 12:56:11,841 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:56:12,380 INFO L232 lantSequenceWeakener]: Weakened 358 states. On average, predicates are now at 71.36% of their original sizes. [2018-09-19 12:56:12,380 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:56:12,883 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:56:12,884 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:56:12,884 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 12:56:12,884 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:56:12,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 12:56:12,885 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 12:56:12,885 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-09-19 12:56:12,885 INFO L87 Difference]: Start difference. First operand 11704 states and 13240 transitions. Second operand 12 states. [2018-09-19 12:56:54,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:56:54,688 INFO L93 Difference]: Finished difference Result 22751 states and 29077 transitions. [2018-09-19 12:56:54,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-19 12:56:54,689 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 361 [2018-09-19 12:56:54,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:56:54,727 INFO L225 Difference]: With dead ends: 22751 [2018-09-19 12:56:54,727 INFO L226 Difference]: Without dead ends: 15901 [2018-09-19 12:56:54,743 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 386 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=1186, Unknown=0, NotChecked=0, Total=1406 [2018-09-19 12:56:54,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15901 states. [2018-09-19 12:56:54,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15901 to 15812. [2018-09-19 12:56:54,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15812 states. [2018-09-19 12:56:54,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15812 states to 15812 states and 18058 transitions. [2018-09-19 12:56:54,973 INFO L78 Accepts]: Start accepts. Automaton has 15812 states and 18058 transitions. Word has length 361 [2018-09-19 12:56:54,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:56:54,973 INFO L480 AbstractCegarLoop]: Abstraction has 15812 states and 18058 transitions. [2018-09-19 12:56:54,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 12:56:54,974 INFO L276 IsEmpty]: Start isEmpty. Operand 15812 states and 18058 transitions. [2018-09-19 12:56:54,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2018-09-19 12:56:54,981 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:56:54,982 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, 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, 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 12:56:54,982 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:56:54,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1388975234, now seen corresponding path program 1 times [2018-09-19 12:56:54,982 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:56:54,983 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 365 with the following transitions: [2018-09-19 12:56:54,983 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], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3031], [3033], [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], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:56:54,985 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:56:54,985 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:56:55,110 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:56:55,541 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:56:55,541 INFO L272 AbstractInterpreter]: Visited 115 different actions 680 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 11 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:56:55,553 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:56:56,001 INFO L232 lantSequenceWeakener]: Weakened 361 states. On average, predicates are now at 71.3% of their original sizes. [2018-09-19 12:56:56,002 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:56:56,155 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:56:56,156 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:56:56,156 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:56:56,156 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:56:56,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:56:56,156 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:56:56,157 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:56:56,157 INFO L87 Difference]: Start difference. First operand 15812 states and 18058 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 12:57:10,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:57:10,337 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 12:57:10,343 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 12:57:10,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 12:57:10 BoogieIcfgContainer [2018-09-19 12:57:10,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 12:57:10,344 INFO L168 Benchmark]: Toolchain (without parser) took 243619.53 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 1.7 GB in the end (delta: -324.1 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-19 12:57:10,347 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 12:57:10,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2537.47 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 12:57:10,348 INFO L168 Benchmark]: Boogie Procedure Inliner took 1111.73 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 984.1 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 190.4 MB. Max. memory is 7.1 GB. [2018-09-19 12:57:10,349 INFO L168 Benchmark]: Boogie Preprocessor took 432.58 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 70.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. [2018-09-19 12:57:10,350 INFO L168 Benchmark]: RCFGBuilder took 11731.72 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 147.3 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -9.6 MB). Peak memory consumption was 717.0 MB. Max. memory is 7.1 GB. [2018-09-19 12:57:10,351 INFO L168 Benchmark]: TraceAbstraction took 227797.43 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.4 GB). Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 578.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-19 12:57:10,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2537.47 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 1111.73 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 984.1 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 190.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 432.58 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 70.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11731.72 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 147.3 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -9.6 MB). Peak memory consumption was 717.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 227797.43 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.4 GB). Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 578.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 180]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 180). Cancelled while BasicCegarLoop was constructing difference of abstraction (15812states) and FLOYD_HOARE automaton (currently 17 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (18708 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 227.7s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 211.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13061 SDtfs, 30584 SDslu, 9757 SDs, 0 SdLazy, 127541 SolverSat, 9903 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 183.0s Time, PredicateUnifierStatistics: 22 DeclaredPredicates, 3017 GetRequests, 2838 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15812occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.1s AbstIntTime, 11 AbstIntIterations, 11 AbstIntStrong, 0.9975048077876263 AbsIntWeakeningRatio, 0.10054719562243503 AbsIntAvgWeakeningVarsNumRemoved, 23.5218878248974 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 222 StatesRemovedByMinimization, 10 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_label34_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_12-57-10-371.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label34_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_12-57-10-371.csv Completed graceful shutdown