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_label55_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 12:56:32,055 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 12:56:32,059 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 12:56:32,073 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 12:56:32,073 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 12:56:32,075 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 12:56:32,076 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 12:56:32,079 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 12:56:32,081 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 12:56:32,084 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 12:56:32,087 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 12:56:32,087 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 12:56:32,088 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 12:56:32,089 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 12:56:32,092 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 12:56:32,093 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 12:56:32,094 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 12:56:32,098 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 12:56:32,107 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 12:56:32,112 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 12:56:32,113 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 12:56:32,117 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 12:56:32,121 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 12:56:32,121 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 12:56:32,122 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 12:56:32,123 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 12:56:32,125 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 12:56:32,126 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 12:56:32,126 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 12:56:32,128 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 12:56:32,128 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 12:56:32,131 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 12:56:32,131 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 12:56:32,131 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 12:56:32,132 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 12:56:32,133 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 12:56:32,135 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 12:56:32,162 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 12:56:32,162 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 12:56:32,164 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 12:56:32,164 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 12:56:32,165 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 12:56:32,165 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 12:56:32,165 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 12:56:32,165 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 12:56:32,166 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 12:56:32,166 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 12:56:32,166 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 12:56:32,167 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 12:56:32,168 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 12:56:32,169 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 12:56:32,169 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 12:56:32,169 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 12:56:32,169 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 12:56:32,169 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 12:56:32,170 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 12:56:32,170 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 12:56:32,170 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 12:56:32,172 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 12:56:32,172 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 12:56:32,172 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 12:56:32,172 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 12:56:32,172 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 12:56:32,173 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 12:56:32,173 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 12:56:32,173 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 12:56:32,173 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 12:56:32,173 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 12:56:32,174 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 12:56:32,174 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 12:56:32,174 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 12:56:32,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 12:56:32,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 12:56:32,264 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 12:56:32,265 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 12:56:32,266 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 12:56:32,267 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label55_true-unreach-call.c [2018-09-19 12:56:32,634 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dad9175c/2ae0b7fcdd42426bb8db2a98d2d318fd/FLAGde247391a [2018-09-19 12:56:33,149 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 12:56:33,150 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label55_true-unreach-call.c [2018-09-19 12:56:33,189 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dad9175c/2ae0b7fcdd42426bb8db2a98d2d318fd/FLAGde247391a [2018-09-19 12:56:33,210 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dad9175c/2ae0b7fcdd42426bb8db2a98d2d318fd [2018-09-19 12:56:33,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 12:56:33,225 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 12:56:33,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 12:56:33,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 12:56:33,235 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 12:56:33,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:56:33" (1/1) ... [2018-09-19 12:56:33,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc87f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:33, skipping insertion in model container [2018-09-19 12:56:33,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:56:33" (1/1) ... [2018-09-19 12:56:33,253 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 12:56:34,669 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:56:34,689 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 12:56:35,293 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:56:35,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:35 WrapperNode [2018-09-19 12:56:35,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 12:56:35,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 12:56:35,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 12:56:35,662 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 12:56:35,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:35" (1/1) ... [2018-09-19 12:56:35,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:35" (1/1) ... [2018-09-19 12:56:35,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 12:56:35,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 12:56:35,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 12:56:35,991 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 12:56:36,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:35" (1/1) ... [2018-09-19 12:56:36,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:35" (1/1) ... [2018-09-19 12:56:37,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:35" (1/1) ... [2018-09-19 12:56:37,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:35" (1/1) ... [2018-09-19 12:56:37,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:35" (1/1) ... [2018-09-19 12:56:37,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:35" (1/1) ... [2018-09-19 12:56:37,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:35" (1/1) ... [2018-09-19 12:56:37,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 12:56:37,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 12:56:37,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 12:56:37,449 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 12:56:37,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:35" (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 12:56:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 12:56:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 12:56:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 12:56:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 12:56:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 12:56:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 12:56:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 12:56:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 12:56:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 12:56:37,531 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 12:56:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 12:56:37,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 12:56:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 12:56:37,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 12:56:48,740 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 12:56:48,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:56:48 BoogieIcfgContainer [2018-09-19 12:56:48,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 12:56:48,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 12:56:48,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 12:56:48,745 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 12:56:48,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 12:56:33" (1/3) ... [2018-09-19 12:56:48,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c647c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:56:48, skipping insertion in model container [2018-09-19 12:56:48,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:56:35" (2/3) ... [2018-09-19 12:56:48,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c647c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:56:48, skipping insertion in model container [2018-09-19 12:56:48,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:56:48" (3/3) ... [2018-09-19 12:56:48,749 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label55_true-unreach-call.c [2018-09-19 12:56:48,759 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 12:56:48,769 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 12:56:48,834 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 12:56:48,835 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 12:56:48,835 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 12:56:48,835 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 12:56:48,835 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 12:56:48,835 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 12:56:48,835 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 12:56:48,836 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 12:56:48,836 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 12:56:48,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-19 12:56:48,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-19 12:56:48,898 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:56:48,900 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] [2018-09-19 12:56:48,901 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:56:48,906 INFO L82 PathProgramCache]: Analyzing trace with hash -661106381, now seen corresponding path program 1 times [2018-09-19 12:56:48,909 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:56:48,910 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 56 with the following transitions: [2018-09-19 12:56:48,913 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], [2967], [2969], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-19 12:56:48,964 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:56:48,964 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:56:49,333 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:56:49,336 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 12:56:49,391 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:56:49,624 INFO L232 lantSequenceWeakener]: Weakened 52 states. On average, predicates are now at 72.95% of their original sizes. [2018-09-19 12:56:49,625 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:56:49,886 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:56:49,888 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:56:49,889 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 12:56:49,889 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:56:49,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 12:56:49,900 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 12:56:49,901 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:56:49,903 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-19 12:57:02,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:57:02,756 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-19 12:57:02,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 12:57:02,758 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2018-09-19 12:57:02,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:57:02,791 INFO L225 Difference]: With dead ends: 3044 [2018-09-19 12:57:02,792 INFO L226 Difference]: Without dead ends: 1922 [2018-09-19 12:57:02,803 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 54 GetRequests, 50 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 12:57:02,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-19 12:57:02,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-19 12:57:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-19 12:57:02,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-19 12:57:02,962 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 55 [2018-09-19 12:57:02,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:57:02,963 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-19 12:57:02,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 12:57:02,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-19 12:57:02,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-19 12:57:02,974 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:57:02,974 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:57:02,974 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:57:02,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1606855200, now seen corresponding path program 1 times [2018-09-19 12:57:02,975 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:57:02,975 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-09-19 12:57:02,976 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], [2967], [2969], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:57:02,982 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:57:02,983 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:57:03,368 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:57:03,368 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 12:57:03,409 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:57:03,717 INFO L232 lantSequenceWeakener]: Weakened 153 states. On average, predicates are now at 71.61% of their original sizes. [2018-09-19 12:57:03,717 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:57:04,496 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:57:04,497 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:57:04,497 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:57:04,497 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:57:04,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:57:04,499 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:57:04,499 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:57:04,499 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-19 12:57:24,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:57:24,286 INFO L93 Difference]: Finished difference Result 3841 states and 6447 transitions. [2018-09-19 12:57:24,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:57:24,287 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2018-09-19 12:57:24,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:57:24,302 INFO L225 Difference]: With dead ends: 3841 [2018-09-19 12:57:24,303 INFO L226 Difference]: Without dead ends: 2731 [2018-09-19 12:57:24,308 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 162 GetRequests, 147 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 12:57:24,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2018-09-19 12:57:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2726. [2018-09-19 12:57:24,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-19 12:57:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3662 transitions. [2018-09-19 12:57:24,380 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3662 transitions. Word has length 156 [2018-09-19 12:57:24,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:57:24,381 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3662 transitions. [2018-09-19 12:57:24,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:57:24,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3662 transitions. [2018-09-19 12:57:24,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-09-19 12:57:24,386 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:57:24,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:57:24,386 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:57:24,387 INFO L82 PathProgramCache]: Analyzing trace with hash 90509141, now seen corresponding path program 1 times [2018-09-19 12:57:24,387 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:57:24,387 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-09-19 12:57:24,388 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], [2967], [2969], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:57:24,394 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:57:24,394 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:57:24,547 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:57:24,833 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:57:24,834 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 12:57:24,869 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:57:25,476 INFO L232 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 71.48% of their original sizes. [2018-09-19 12:57:25,476 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:57:26,237 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:57:26,238 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:57:26,238 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:57:26,238 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:57:26,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:57:26,239 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:57:26,240 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:57:26,240 INFO L87 Difference]: Start difference. First operand 2726 states and 3662 transitions. Second operand 10 states. [2018-09-19 12:57:38,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:57:38,774 INFO L93 Difference]: Finished difference Result 4658 states and 7291 transitions. [2018-09-19 12:57:38,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:57:38,782 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2018-09-19 12:57:38,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:57:38,798 INFO L225 Difference]: With dead ends: 4658 [2018-09-19 12:57:38,798 INFO L226 Difference]: Without dead ends: 3548 [2018-09-19 12:57:38,802 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 191 GetRequests, 176 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 12:57:38,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2018-09-19 12:57:38,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3542. [2018-09-19 12:57:38,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3542 states. [2018-09-19 12:57:38,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 4500 transitions. [2018-09-19 12:57:38,884 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 4500 transitions. Word has length 185 [2018-09-19 12:57:38,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:57:38,885 INFO L480 AbstractCegarLoop]: Abstraction has 3542 states and 4500 transitions. [2018-09-19 12:57:38,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:57:38,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 4500 transitions. [2018-09-19 12:57:38,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-09-19 12:57:38,890 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:57:38,890 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:57:38,891 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:57:38,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1342361293, now seen corresponding path program 1 times [2018-09-19 12:57:38,891 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:57:38,892 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 251 with the following transitions: [2018-09-19 12:57:38,892 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], [2967], [2969], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:57:38,897 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:57:38,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:57:39,063 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:57:39,243 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:57:39,243 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 12:57:39,269 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:57:39,632 INFO L232 lantSequenceWeakener]: Weakened 247 states. On average, predicates are now at 71.35% of their original sizes. [2018-09-19 12:57:39,632 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:57:39,874 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:57:39,876 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:57:39,876 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:57:39,876 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:57:39,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:57:39,877 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:57:39,877 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:57:39,877 INFO L87 Difference]: Start difference. First operand 3542 states and 4500 transitions. Second operand 10 states. [2018-09-19 12:57:56,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:57:56,392 INFO L93 Difference]: Finished difference Result 6286 states and 8969 transitions. [2018-09-19 12:57:56,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:57:56,398 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 250 [2018-09-19 12:57:56,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:57:56,418 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 12:57:56,418 INFO L226 Difference]: Without dead ends: 4360 [2018-09-19 12:57:56,424 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 256 GetRequests, 241 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 12:57:56,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2018-09-19 12:57:56,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 4349. [2018-09-19 12:57:56,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4349 states. [2018-09-19 12:57:56,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4349 states to 4349 states and 5346 transitions. [2018-09-19 12:57:56,544 INFO L78 Accepts]: Start accepts. Automaton has 4349 states and 5346 transitions. Word has length 250 [2018-09-19 12:57:56,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:57:56,545 INFO L480 AbstractCegarLoop]: Abstraction has 4349 states and 5346 transitions. [2018-09-19 12:57:56,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:57:56,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4349 states and 5346 transitions. [2018-09-19 12:57:56,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-09-19 12:57:56,551 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:57:56,551 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:57:56,551 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:57:56,552 INFO L82 PathProgramCache]: Analyzing trace with hash 686453835, now seen corresponding path program 1 times [2018-09-19 12:57:56,552 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:57:56,552 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-09-19 12:57:56,554 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], [2967], [2969], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:57:56,560 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:57:56,560 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:57:56,746 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:57:57,073 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:57:57,073 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 12:57:57,085 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:57:57,718 INFO L232 lantSequenceWeakener]: Weakened 259 states. On average, predicates are now at 71.32% of their original sizes. [2018-09-19 12:57:57,719 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:57:57,901 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:57:57,902 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:57:57,902 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:57:57,902 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:57:57,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:57:57,903 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:57:57,903 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:57:57,903 INFO L87 Difference]: Start difference. First operand 4349 states and 5346 transitions. Second operand 10 states. [2018-09-19 12:58:12,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:58:12,827 INFO L93 Difference]: Finished difference Result 7115 states and 9845 transitions. [2018-09-19 12:58:12,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 12:58:12,839 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 262 [2018-09-19 12:58:12,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:58:12,859 INFO L225 Difference]: With dead ends: 7115 [2018-09-19 12:58:12,859 INFO L226 Difference]: Without dead ends: 5189 [2018-09-19 12:58:12,864 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 269 GetRequests, 253 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 12:58:12,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5189 states. [2018-09-19 12:58:12,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5189 to 5167. [2018-09-19 12:58:12,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5167 states. [2018-09-19 12:58:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 6284 transitions. [2018-09-19 12:58:12,974 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 6284 transitions. Word has length 262 [2018-09-19 12:58:12,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:58:12,975 INFO L480 AbstractCegarLoop]: Abstraction has 5167 states and 6284 transitions. [2018-09-19 12:58:12,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:58:12,975 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 6284 transitions. [2018-09-19 12:58:12,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-09-19 12:58:12,981 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:58:12,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:12,982 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:58:12,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1346353548, now seen corresponding path program 1 times [2018-09-19 12:58:12,982 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:58:12,983 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 279 with the following transitions: [2018-09-19 12:58:12,984 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], [2967], [2969], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3572], [3576], [3580], [3591], [3595], [3599], [3603], [3614], [3618], [3622], [3626], [3630], [3634], [3638], [3642], [3646], [3650], [3654], [3658], [3662], [3666], [3670], [3674], [3678], [3682], [3686], [3690], [3694], [3698], [3709], [3713], [3717], [3721], [3725], [3729], [3733], [3737], [3741], [3745], [3749], [3753], [3757], [3768], [3772], [3776], [3780], [3784], [3788], [3792], [3796], [3800], [3804], [3815], [3819], [3823], [3827], [3831], [3835], [3839], [3843], [3847], [3851], [3862], [3865], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:58:12,990 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:58:12,990 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:58:13,277 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:58:13,798 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:58:13,799 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 12:58:13,839 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:58:14,349 INFO L232 lantSequenceWeakener]: Weakened 275 states. On average, predicates are now at 71.26% of their original sizes. [2018-09-19 12:58:14,351 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:58:14,607 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:58:14,608 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:58:14,608 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:58:14,608 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:58:14,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:58:14,609 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:58:14,609 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:58:14,610 INFO L87 Difference]: Start difference. First operand 5167 states and 6284 transitions. Second operand 10 states. [2018-09-19 12:58:32,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:58:32,066 INFO L93 Difference]: Finished difference Result 9545 states and 12511 transitions. [2018-09-19 12:58:32,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:58:32,067 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 278 [2018-09-19 12:58:32,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:58:32,093 INFO L225 Difference]: With dead ends: 9545 [2018-09-19 12:58:32,093 INFO L226 Difference]: Without dead ends: 6800 [2018-09-19 12:58:32,101 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 284 GetRequests, 269 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 12:58:32,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6800 states. [2018-09-19 12:58:32,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6800 to 6794. [2018-09-19 12:58:32,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6794 states. [2018-09-19 12:58:32,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 7947 transitions. [2018-09-19 12:58:32,224 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 7947 transitions. Word has length 278 [2018-09-19 12:58:32,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:58:32,225 INFO L480 AbstractCegarLoop]: Abstraction has 6794 states and 7947 transitions. [2018-09-19 12:58:32,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:58:32,225 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 7947 transitions. [2018-09-19 12:58:32,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-09-19 12:58:32,231 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:58:32,231 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:58:32,231 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:58:32,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1800654018, now seen corresponding path program 1 times [2018-09-19 12:58:32,232 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:58:32,232 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 287 with the following transitions: [2018-09-19 12:58:32,232 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], [2967], [2969], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:58:32,235 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:58:32,235 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:58:32,394 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:58:32,917 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:58:32,917 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 12:58:32,961 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:58:33,590 INFO L232 lantSequenceWeakener]: Weakened 283 states. On average, predicates are now at 71.28% of their original sizes. [2018-09-19 12:58:33,591 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:58:33,736 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:58:33,736 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:58:33,736 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:58:33,736 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:58:33,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:58:33,737 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:58:33,737 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:58:33,737 INFO L87 Difference]: Start difference. First operand 6794 states and 7947 transitions. Second operand 10 states. [2018-09-19 12:58:53,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:58:53,482 INFO L93 Difference]: Finished difference Result 13654 states and 16856 transitions. [2018-09-19 12:58:53,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:58:53,484 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 286 [2018-09-19 12:58:53,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:58:53,511 INFO L225 Difference]: With dead ends: 13654 [2018-09-19 12:58:53,512 INFO L226 Difference]: Without dead ends: 9279 [2018-09-19 12:58:53,522 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 293 GetRequests, 277 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 12:58:53,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9279 states. [2018-09-19 12:58:53,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9279 to 9252. [2018-09-19 12:58:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9252 states. [2018-09-19 12:58:53,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9252 states to 9252 states and 10537 transitions. [2018-09-19 12:58:53,671 INFO L78 Accepts]: Start accepts. Automaton has 9252 states and 10537 transitions. Word has length 286 [2018-09-19 12:58:53,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:58:53,671 INFO L480 AbstractCegarLoop]: Abstraction has 9252 states and 10537 transitions. [2018-09-19 12:58:53,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:58:53,672 INFO L276 IsEmpty]: Start isEmpty. Operand 9252 states and 10537 transitions. [2018-09-19 12:58:53,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-09-19 12:58:53,678 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:58:53,679 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:58:53,679 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:58:53,679 INFO L82 PathProgramCache]: Analyzing trace with hash -230684570, now seen corresponding path program 1 times [2018-09-19 12:58:53,680 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:58:53,680 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 329 with the following transitions: [2018-09-19 12:58:53,680 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], [2967], [2969], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3159], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:58:53,682 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:58:53,683 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:58:53,849 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:58:55,121 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:58:55,121 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 12:58:55,128 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:58:55,987 INFO L232 lantSequenceWeakener]: Weakened 325 states. On average, predicates are now at 71.25% of their original sizes. [2018-09-19 12:58:55,988 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:58:56,081 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:58:56,081 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:58:56,082 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:58:56,082 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:58:56,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:58:56,082 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:58:56,082 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:58:56,083 INFO L87 Difference]: Start difference. First operand 9252 states and 10537 transitions. Second operand 10 states. [2018-09-19 12:59:10,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:59:10,348 INFO L93 Difference]: Finished difference Result 15294 states and 18522 transitions. [2018-09-19 12:59:10,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:59:10,348 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 328 [2018-09-19 12:59:10,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:59:10,367 INFO L225 Difference]: With dead ends: 15294 [2018-09-19 12:59:10,368 INFO L226 Difference]: Without dead ends: 10085 [2018-09-19 12:59:10,378 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 334 GetRequests, 319 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 12:59:10,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10085 states. [2018-09-19 12:59:10,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10085 to 10061. [2018-09-19 12:59:10,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10061 states. [2018-09-19 12:59:10,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 11413 transitions. [2018-09-19 12:59:10,528 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 11413 transitions. Word has length 328 [2018-09-19 12:59:10,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:59:10,529 INFO L480 AbstractCegarLoop]: Abstraction has 10061 states and 11413 transitions. [2018-09-19 12:59:10,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:59:10,529 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 11413 transitions. [2018-09-19 12:59:10,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-09-19 12:59:10,536 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:59:10,537 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:59:10,537 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:59:10,537 INFO L82 PathProgramCache]: Analyzing trace with hash -2121983622, now seen corresponding path program 1 times [2018-09-19 12:59:10,537 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:59:10,538 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 339 with the following transitions: [2018-09-19 12:59:10,538 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], [2967], [2969], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:59:10,540 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:59:10,541 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:59:10,700 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:59:11,134 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:59:11,134 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 12:59:11,172 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:59:11,652 INFO L232 lantSequenceWeakener]: Weakened 335 states. On average, predicates are now at 71.24% of their original sizes. [2018-09-19 12:59:11,652 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:59:11,769 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:59:11,769 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:59:11,770 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:59:11,770 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:59:11,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:59:11,771 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:59:11,771 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:59:11,771 INFO L87 Difference]: Start difference. First operand 10061 states and 11413 transitions. Second operand 10 states. [2018-09-19 12:59:30,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:59:30,940 INFO L93 Difference]: Finished difference Result 17756 states and 21202 transitions. [2018-09-19 12:59:30,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:59:30,942 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 338 [2018-09-19 12:59:30,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:59:30,967 INFO L225 Difference]: With dead ends: 17756 [2018-09-19 12:59:30,968 INFO L226 Difference]: Without dead ends: 11734 [2018-09-19 12:59:30,980 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 345 GetRequests, 329 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 12:59:30,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2018-09-19 12:59:31,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11704. [2018-09-19 12:59:31,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11704 states. [2018-09-19 12:59:31,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11704 states to 11704 states and 13240 transitions. [2018-09-19 12:59:31,165 INFO L78 Accepts]: Start accepts. Automaton has 11704 states and 13240 transitions. Word has length 338 [2018-09-19 12:59:31,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:59:31,166 INFO L480 AbstractCegarLoop]: Abstraction has 11704 states and 13240 transitions. [2018-09-19 12:59:31,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:59:31,166 INFO L276 IsEmpty]: Start isEmpty. Operand 11704 states and 13240 transitions. [2018-09-19 12:59:31,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-09-19 12:59:31,174 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:59:31,175 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:59:31,175 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:59:31,175 INFO L82 PathProgramCache]: Analyzing trace with hash -397061555, now seen corresponding path program 1 times [2018-09-19 12:59:31,175 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:59:31,176 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 354 with the following transitions: [2018-09-19 12:59:31,176 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], [2967], [2969], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3210], [3213], [3217], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:59:31,178 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:59:31,178 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:59:31,332 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:59:31,711 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:59:31,711 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 12:59:31,750 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:59:32,281 INFO L232 lantSequenceWeakener]: Weakened 350 states. On average, predicates are now at 71.28% of their original sizes. [2018-09-19 12:59:32,282 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:59:33,374 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:59:33,374 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:59:33,374 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 12:59:33,374 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:59:33,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 12:59:33,375 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 12:59:33,375 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-09-19 12:59:33,376 INFO L87 Difference]: Start difference. First operand 11704 states and 13240 transitions. Second operand 12 states. [2018-09-19 13:00:24,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:00:24,826 INFO L93 Difference]: Finished difference Result 22751 states and 29077 transitions. [2018-09-19 13:00:24,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-19 13:00:24,827 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 353 [2018-09-19 13:00:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:00:24,860 INFO L225 Difference]: With dead ends: 22751 [2018-09-19 13:00:24,861 INFO L226 Difference]: Without dead ends: 15901 [2018-09-19 13:00:24,876 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 378 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=220, Invalid=1186, Unknown=0, NotChecked=0, Total=1406 [2018-09-19 13:00:24,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15901 states. [2018-09-19 13:00:25,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15901 to 15812. [2018-09-19 13:00:25,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15812 states. [2018-09-19 13:00:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15812 states to 15812 states and 18058 transitions. [2018-09-19 13:00:25,104 INFO L78 Accepts]: Start accepts. Automaton has 15812 states and 18058 transitions. Word has length 353 [2018-09-19 13:00:25,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:00:25,105 INFO L480 AbstractCegarLoop]: Abstraction has 15812 states and 18058 transitions. [2018-09-19 13:00:25,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 13:00:25,105 INFO L276 IsEmpty]: Start isEmpty. Operand 15812 states and 18058 transitions. [2018-09-19 13:00:25,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2018-09-19 13:00:25,113 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:00:25,114 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:00:25,114 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:00:25,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1244485026, now seen corresponding path program 1 times [2018-09-19 13:00:25,114 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:00:25,114 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 357 with the following transitions: [2018-09-19 13:00:25,115 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], [2967], [2969], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 13:00:25,117 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:00:25,117 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:00:25,252 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:00:25,530 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:00:25,530 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 13:00:25,541 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:00:26,010 INFO L232 lantSequenceWeakener]: Weakened 353 states. On average, predicates are now at 71.22% of their original sizes. [2018-09-19 13:00:26,010 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:00:26,142 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:00:26,143 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:00:26,143 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:00:26,143 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:00:26,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:00:26,144 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:00:26,144 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:00:26,144 INFO L87 Difference]: Start difference. First operand 15812 states and 18058 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 13:00:32,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:00:32,937 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 13:00:32,942 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 13:00:32,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:00:32 BoogieIcfgContainer [2018-09-19 13:00:32,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 13:00:32,943 INFO L168 Benchmark]: Toolchain (without parser) took 239720.30 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 620.7 MB. Max. memory is 7.1 GB. [2018-09-19 13:00:32,945 INFO L168 Benchmark]: CDTParser took 0.21 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 13:00:32,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2434.60 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 13:00:32,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 328.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. [2018-09-19 13:00:32,947 INFO L168 Benchmark]: Boogie Preprocessor took 1458.11 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-19 13:00:32,948 INFO L168 Benchmark]: RCFGBuilder took 11292.64 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 170.9 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: -44.5 MB). Peak memory consumption was 774.9 MB. Max. memory is 7.1 GB. [2018-09-19 13:00:32,949 INFO L168 Benchmark]: TraceAbstraction took 224200.02 ms. Allocated memory was 2.7 GB in the beginning and 4.1 GB in the end (delta: 1.4 GB). Free memory was 2.4 GB in the beginning and 3.4 GB in the end (delta: -955.0 MB). Peak memory consumption was 420.2 MB. Max. memory is 7.1 GB. [2018-09-19 13:00:32,954 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2434.60 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 328.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1458.11 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11292.64 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 170.9 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: -44.5 MB). Peak memory consumption was 774.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224200.02 ms. Allocated memory was 2.7 GB in the beginning and 4.1 GB in the end (delta: 1.4 GB). Free memory was 2.4 GB in the beginning and 3.4 GB in the end (delta: -955.0 MB). Peak memory consumption was 420.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 156]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 156). 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 (6343 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 224.1s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 205.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12470 SDtfs, 29851 SDslu, 9335 SDs, 0 SdLazy, 125862 SolverSat, 9502 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 177.8s Time, PredicateUnifierStatistics: 22 DeclaredPredicates, 2929 GetRequests, 2750 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 5.1s 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, 6.9s AbstIntTime, 11 AbstIntIterations, 11 AbstIntStrong, 0.9974273829234905 AbsIntWeakeningRatio, 0.10366713681241185 AbsIntAvgWeakeningVarsNumRemoved, 23.442172073342736 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_label55_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_13-00-32-970.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label55_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_13-00-32-970.csv Completed graceful shutdown