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/Problem18_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 13:18:44,719 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 13:18:44,722 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 13:18:44,739 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 13:18:44,740 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 13:18:44,741 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 13:18:44,743 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 13:18:44,746 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 13:18:44,755 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 13:18:44,756 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 13:18:44,758 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 13:18:44,758 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 13:18:44,759 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 13:18:44,763 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 13:18:44,765 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 13:18:44,766 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 13:18:44,767 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 13:18:44,770 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 13:18:44,772 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 13:18:44,776 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 13:18:44,778 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 13:18:44,780 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 13:18:44,782 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 13:18:44,782 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 13:18:44,784 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 13:18:44,785 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 13:18:44,786 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 13:18:44,786 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 13:18:44,788 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 13:18:44,789 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 13:18:44,789 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 13:18:44,790 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 13:18:44,790 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 13:18:44,792 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 13:18:44,793 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 13:18:44,795 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 13:18:44,795 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 13:18:44,826 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 13:18:44,826 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 13:18:44,827 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 13:18:44,827 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 13:18:44,827 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 13:18:44,827 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 13:18:44,828 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 13:18:44,828 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 13:18:44,828 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 13:18:44,828 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 13:18:44,828 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 13:18:44,829 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 13:18:44,829 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 13:18:44,830 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 13:18:44,830 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 13:18:44,830 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 13:18:44,831 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 13:18:44,831 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 13:18:44,831 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 13:18:44,831 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 13:18:44,831 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 13:18:44,832 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 13:18:44,832 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 13:18:44,832 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 13:18:44,832 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 13:18:44,834 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 13:18:44,834 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 13:18:44,834 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 13:18:44,834 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 13:18:44,834 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 13:18:44,835 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 13:18:44,835 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 13:18:44,835 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 13:18:44,835 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 13:18:44,902 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 13:18:44,918 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 13:18:44,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 13:18:44,927 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 13:18:44,927 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 13:18:44,928 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label53_true-unreach-call.c [2018-09-19 13:18:45,306 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/923a28058/82ef6f105f1a484fb0d25dc7df75a036/FLAGec50bc469 [2018-09-19 13:18:45,735 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 13:18:45,736 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label53_true-unreach-call.c [2018-09-19 13:18:45,765 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/923a28058/82ef6f105f1a484fb0d25dc7df75a036/FLAGec50bc469 [2018-09-19 13:18:45,787 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/923a28058/82ef6f105f1a484fb0d25dc7df75a036 [2018-09-19 13:18:45,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 13:18:45,803 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 13:18:45,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 13:18:45,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 13:18:45,815 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 13:18:45,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:18:45" (1/1) ... [2018-09-19 13:18:45,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ecc5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:45, skipping insertion in model container [2018-09-19 13:18:45,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:18:45" (1/1) ... [2018-09-19 13:18:45,836 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 13:18:46,872 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 13:18:46,890 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 13:18:47,383 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 13:18:47,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:47 WrapperNode [2018-09-19 13:18:47,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 13:18:47,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 13:18:47,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 13:18:47,531 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 13:18:47,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:47" (1/1) ... [2018-09-19 13:18:47,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:47" (1/1) ... [2018-09-19 13:18:47,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 13:18:47,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 13:18:47,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 13:18:47,745 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 13:18:48,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:47" (1/1) ... [2018-09-19 13:18:48,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:47" (1/1) ... [2018-09-19 13:18:48,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:47" (1/1) ... [2018-09-19 13:18:48,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:47" (1/1) ... [2018-09-19 13:18:48,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:47" (1/1) ... [2018-09-19 13:18:48,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:47" (1/1) ... [2018-09-19 13:18:48,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:47" (1/1) ... [2018-09-19 13:18:48,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 13:18:48,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 13:18:48,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 13:18:48,353 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 13:18:48,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:47" (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 13:18:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 13:18:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 13:18:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 13:18:48,430 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 13:18:48,430 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 13:18:48,430 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 13:18:48,430 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 13:18:48,430 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 13:18:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 13:18:48,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 13:18:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 13:18:48,431 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 13:18:56,084 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 13:18:56,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:18:56 BoogieIcfgContainer [2018-09-19 13:18:56,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 13:18:56,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 13:18:56,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 13:18:56,089 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 13:18:56,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:18:45" (1/3) ... [2018-09-19 13:18:56,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599e8b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:18:56, skipping insertion in model container [2018-09-19 13:18:56,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:18:47" (2/3) ... [2018-09-19 13:18:56,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599e8b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:18:56, skipping insertion in model container [2018-09-19 13:18:56,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:18:56" (3/3) ... [2018-09-19 13:18:56,092 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label53_true-unreach-call.c [2018-09-19 13:18:56,101 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 13:18:56,110 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 13:18:56,167 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 13:18:56,168 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 13:18:56,168 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 13:18:56,168 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 13:18:56,169 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 13:18:56,169 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 13:18:56,169 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 13:18:56,169 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 13:18:56,169 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 13:18:56,207 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-09-19 13:18:56,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-19 13:18:56,215 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:18:56,216 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] [2018-09-19 13:18:56,217 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:18:56,223 INFO L82 PathProgramCache]: Analyzing trace with hash 861122892, now seen corresponding path program 1 times [2018-09-19 13:18:56,226 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:18:56,227 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2018-09-19 13:18:56,230 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [3000], [3004], [3010], [3014], [3025], [3026], [3027], [3029] [2018-09-19 13:18:56,279 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:18:56,279 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:18:56,530 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:18:56,532 INFO L272 AbstractInterpreter]: Visited 39 different actions 39 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 13:18:56,572 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:18:56,787 INFO L232 lantSequenceWeakener]: Weakened 37 states. On average, predicates are now at 79.56% of their original sizes. [2018-09-19 13:18:56,787 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:18:57,059 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:18:57,060 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:18:57,061 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 13:18:57,061 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:18:57,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 13:18:57,077 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 13:18:57,077 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 13:18:57,080 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 6 states. [2018-09-19 13:19:06,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:19:06,355 INFO L93 Difference]: Finished difference Result 2253 states and 4323 transitions. [2018-09-19 13:19:06,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 13:19:06,358 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-09-19 13:19:06,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:19:06,385 INFO L225 Difference]: With dead ends: 2253 [2018-09-19 13:19:06,385 INFO L226 Difference]: Without dead ends: 1476 [2018-09-19 13:19:06,396 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 39 GetRequests, 35 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 13:19:06,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2018-09-19 13:19:06,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1474. [2018-09-19 13:19:06,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-09-19 13:19:06,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2167 transitions. [2018-09-19 13:19:06,538 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2167 transitions. Word has length 40 [2018-09-19 13:19:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:19:06,541 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2167 transitions. [2018-09-19 13:19:06,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 13:19:06,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2167 transitions. [2018-09-19 13:19:06,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-09-19 13:19:06,554 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:19:06,554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:19:06,555 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:19:06,555 INFO L82 PathProgramCache]: Analyzing trace with hash -709560817, now seen corresponding path program 1 times [2018-09-19 13:19:06,555 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:19:06,555 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-09-19 13:19:06,556 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-09-19 13:19:06,568 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:19:06,569 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:19:07,114 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:19:07,115 INFO L272 AbstractInterpreter]: Visited 194 different actions 381 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:19:07,158 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:19:07,729 INFO L232 lantSequenceWeakener]: Weakened 224 states. On average, predicates are now at 77.69% of their original sizes. [2018-09-19 13:19:07,730 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:19:08,236 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:19:08,237 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:19:08,237 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:19:08,237 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:19:08,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:19:08,240 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:19:08,241 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:19:08,242 INFO L87 Difference]: Start difference. First operand 1474 states and 2167 transitions. Second operand 10 states. [2018-09-19 13:19:22,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:19:22,561 INFO L93 Difference]: Finished difference Result 2950 states and 5022 transitions. [2018-09-19 13:19:22,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:19:22,562 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 227 [2018-09-19 13:19:22,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:19:22,574 INFO L225 Difference]: With dead ends: 2950 [2018-09-19 13:19:22,574 INFO L226 Difference]: Without dead ends: 2185 [2018-09-19 13:19:22,578 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 233 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:19:22,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2185 states. [2018-09-19 13:19:22,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2185 to 2180. [2018-09-19 13:19:22,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2018-09-19 13:19:22,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 2888 transitions. [2018-09-19 13:19:22,638 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 2888 transitions. Word has length 227 [2018-09-19 13:19:22,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:19:22,639 INFO L480 AbstractCegarLoop]: Abstraction has 2180 states and 2888 transitions. [2018-09-19 13:19:22,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:19:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 2888 transitions. [2018-09-19 13:19:22,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2018-09-19 13:19:22,657 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:19:22,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:19:22,658 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:19:22,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1743398060, now seen corresponding path program 1 times [2018-09-19 13:19:22,659 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:19:22,659 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 569 with the following transitions: [2018-09-19 13:19:22,661 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 13:19:22,692 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:19:22,693 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:19:23,551 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:19:23,551 INFO L272 AbstractInterpreter]: Visited 535 different actions 1064 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:19:23,590 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:19:24,330 INFO L232 lantSequenceWeakener]: Weakened 565 states. On average, predicates are now at 77.45% of their original sizes. [2018-09-19 13:19:24,331 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:19:24,903 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:19:24,904 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:19:24,904 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:19:24,904 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:19:24,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:19:24,907 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:19:24,907 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:19:24,907 INFO L87 Difference]: Start difference. First operand 2180 states and 2888 transitions. Second operand 18 states. [2018-09-19 13:19:40,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:19:40,750 INFO L93 Difference]: Finished difference Result 3659 states and 5742 transitions. [2018-09-19 13:19:40,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 13:19:40,752 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 568 [2018-09-19 13:19:40,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:19:40,767 INFO L225 Difference]: With dead ends: 3659 [2018-09-19 13:19:40,767 INFO L226 Difference]: Without dead ends: 2894 [2018-09-19 13:19:40,770 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 584 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=156, Invalid=1034, Unknown=0, NotChecked=0, Total=1190 [2018-09-19 13:19:40,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2018-09-19 13:19:40,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2891. [2018-09-19 13:19:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2891 states. [2018-09-19 13:19:40,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 3614 transitions. [2018-09-19 13:19:40,834 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 3614 transitions. Word has length 568 [2018-09-19 13:19:40,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:19:40,836 INFO L480 AbstractCegarLoop]: Abstraction has 2891 states and 3614 transitions. [2018-09-19 13:19:40,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:19:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 3614 transitions. [2018-09-19 13:19:40,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2018-09-19 13:19:40,862 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:19:40,863 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:19:40,863 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:19:40,864 INFO L82 PathProgramCache]: Analyzing trace with hash -719947241, now seen corresponding path program 1 times [2018-09-19 13:19:40,864 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:19:40,864 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 756 with the following transitions: [2018-09-19 13:19:40,865 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 13:19:40,875 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:19:40,875 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:19:41,880 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:19:41,881 INFO L272 AbstractInterpreter]: Visited 536 different actions 1602 times. Merged at 7 different actions 16 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:19:41,887 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:19:42,781 INFO L232 lantSequenceWeakener]: Weakened 752 states. On average, predicates are now at 77.41% of their original sizes. [2018-09-19 13:19:42,781 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:19:43,237 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:19:43,238 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:19:43,238 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:19:43,238 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:19:43,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:19:43,239 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:19:43,239 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:19:43,240 INFO L87 Difference]: Start difference. First operand 2891 states and 3614 transitions. Second operand 18 states. [2018-09-19 13:19:55,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:19:55,002 INFO L93 Difference]: Finished difference Result 4379 states and 6480 transitions. [2018-09-19 13:19:55,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 13:19:55,002 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 755 [2018-09-19 13:19:55,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:19:55,021 INFO L225 Difference]: With dead ends: 4379 [2018-09-19 13:19:55,021 INFO L226 Difference]: Without dead ends: 3614 [2018-09-19 13:19:55,026 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 771 GetRequests, 738 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=156, Invalid=1034, Unknown=0, NotChecked=0, Total=1190 [2018-09-19 13:19:55,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2018-09-19 13:19:55,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3607. [2018-09-19 13:19:55,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3607 states. [2018-09-19 13:19:55,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3607 states to 3607 states and 4352 transitions. [2018-09-19 13:19:55,106 INFO L78 Accepts]: Start accepts. Automaton has 3607 states and 4352 transitions. Word has length 755 [2018-09-19 13:19:55,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:19:55,108 INFO L480 AbstractCegarLoop]: Abstraction has 3607 states and 4352 transitions. [2018-09-19 13:19:55,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:19:55,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3607 states and 4352 transitions. [2018-09-19 13:19:55,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 877 [2018-09-19 13:19:55,120 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:19:55,121 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:19:55,121 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:19:55,121 INFO L82 PathProgramCache]: Analyzing trace with hash 408944052, now seen corresponding path program 1 times [2018-09-19 13:19:55,122 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:19:55,122 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 877 with the following transitions: [2018-09-19 13:19:55,123 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [795], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 13:19:55,134 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:19:55,135 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:19:55,837 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:19:56,980 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:19:56,981 INFO L272 AbstractInterpreter]: Visited 536 different actions 2140 times. Merged at 10 different actions 29 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:19:57,021 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:19:57,974 INFO L232 lantSequenceWeakener]: Weakened 873 states. On average, predicates are now at 77.4% of their original sizes. [2018-09-19 13:19:57,975 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:19:58,308 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:19:58,309 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:19:58,309 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:19:58,309 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:19:58,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:19:58,310 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:19:58,311 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:19:58,311 INFO L87 Difference]: Start difference. First operand 3607 states and 4352 transitions. Second operand 18 states. [2018-09-19 13:20:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:20:11,559 INFO L93 Difference]: Finished difference Result 5108 states and 7232 transitions. [2018-09-19 13:20:11,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-09-19 13:20:11,560 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 876 [2018-09-19 13:20:11,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:20:11,581 INFO L225 Difference]: With dead ends: 5108 [2018-09-19 13:20:11,582 INFO L226 Difference]: Without dead ends: 4343 [2018-09-19 13:20:11,587 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 893 GetRequests, 859 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=162, Invalid=1098, Unknown=0, NotChecked=0, Total=1260 [2018-09-19 13:20:11,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4343 states. [2018-09-19 13:20:11,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4343 to 4322. [2018-09-19 13:20:11,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4322 states. [2018-09-19 13:20:11,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4322 states to 4322 states and 5100 transitions. [2018-09-19 13:20:11,673 INFO L78 Accepts]: Start accepts. Automaton has 4322 states and 5100 transitions. Word has length 876 [2018-09-19 13:20:11,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:20:11,675 INFO L480 AbstractCegarLoop]: Abstraction has 4322 states and 5100 transitions. [2018-09-19 13:20:11,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:20:11,675 INFO L276 IsEmpty]: Start isEmpty. Operand 4322 states and 5100 transitions. [2018-09-19 13:20:11,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2018-09-19 13:20:11,689 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:20:11,690 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:20:11,691 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:20:11,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1453549795, now seen corresponding path program 1 times [2018-09-19 13:20:11,691 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:20:11,692 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 954 with the following transitions: [2018-09-19 13:20:11,693 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [795], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2144], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 13:20:11,703 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:20:11,703 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:20:12,365 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:20:13,406 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:20:13,407 INFO L272 AbstractInterpreter]: Visited 537 different actions 2686 times. Merged at 10 different actions 45 times. Never widened. Found 8 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:20:13,417 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:20:14,300 INFO L232 lantSequenceWeakener]: Weakened 950 states. On average, predicates are now at 77.4% of their original sizes. [2018-09-19 13:20:14,302 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:20:14,543 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:20:14,544 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:20:14,544 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:20:14,544 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:20:14,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:20:14,546 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:20:14,546 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:20:14,546 INFO L87 Difference]: Start difference. First operand 4322 states and 5100 transitions. Second operand 18 states. [2018-09-19 13:20:30,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:20:30,694 INFO L93 Difference]: Finished difference Result 6563 states and 8761 transitions. [2018-09-19 13:20:30,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-19 13:20:30,697 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 953 [2018-09-19 13:20:30,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:20:30,720 INFO L225 Difference]: With dead ends: 6563 [2018-09-19 13:20:30,720 INFO L226 Difference]: Without dead ends: 5083 [2018-09-19 13:20:30,732 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 971 GetRequests, 936 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=1164, Unknown=0, NotChecked=0, Total=1332 [2018-09-19 13:20:30,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5083 states. [2018-09-19 13:20:30,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5083 to 5043. [2018-09-19 13:20:30,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5043 states. [2018-09-19 13:20:30,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5043 states to 5043 states and 5874 transitions. [2018-09-19 13:20:30,822 INFO L78 Accepts]: Start accepts. Automaton has 5043 states and 5874 transitions. Word has length 953 [2018-09-19 13:20:30,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:20:30,824 INFO L480 AbstractCegarLoop]: Abstraction has 5043 states and 5874 transitions. [2018-09-19 13:20:30,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:20:30,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5043 states and 5874 transitions. [2018-09-19 13:20:30,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2018-09-19 13:20:30,839 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:20:30,840 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:20:30,840 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:20:30,840 INFO L82 PathProgramCache]: Analyzing trace with hash 141375174, now seen corresponding path program 1 times [2018-09-19 13:20:30,841 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:20:30,841 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 993 with the following transitions: [2018-09-19 13:20:30,842 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [795], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2300], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 13:20:30,851 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:20:30,852 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:20:31,334 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:20:33,122 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:20:33,122 INFO L272 AbstractInterpreter]: Visited 537 different actions 3225 times. Merged at 10 different actions 58 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:20:33,140 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:20:34,249 INFO L232 lantSequenceWeakener]: Weakened 989 states. On average, predicates are now at 77.39% of their original sizes. [2018-09-19 13:20:34,249 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:20:34,573 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:20:34,573 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:20:34,573 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:20:34,573 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:20:34,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:20:34,575 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:20:34,575 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:20:34,576 INFO L87 Difference]: Start difference. First operand 5043 states and 5874 transitions. Second operand 18 states. [2018-09-19 13:20:55,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:20:55,105 INFO L93 Difference]: Finished difference Result 8704 states and 11704 transitions. [2018-09-19 13:20:55,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-19 13:20:55,109 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 992 [2018-09-19 13:20:55,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:20:55,140 INFO L225 Difference]: With dead ends: 8704 [2018-09-19 13:20:55,140 INFO L226 Difference]: Without dead ends: 6503 [2018-09-19 13:20:55,147 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1011 GetRequests, 975 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=174, Invalid=1232, Unknown=0, NotChecked=0, Total=1406 [2018-09-19 13:20:55,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6503 states. [2018-09-19 13:20:55,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6503 to 6454. [2018-09-19 13:20:55,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6454 states. [2018-09-19 13:20:55,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6454 states to 6454 states and 7378 transitions. [2018-09-19 13:20:55,278 INFO L78 Accepts]: Start accepts. Automaton has 6454 states and 7378 transitions. Word has length 992 [2018-09-19 13:20:55,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:20:55,281 INFO L480 AbstractCegarLoop]: Abstraction has 6454 states and 7378 transitions. [2018-09-19 13:20:55,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:20:55,282 INFO L276 IsEmpty]: Start isEmpty. Operand 6454 states and 7378 transitions. [2018-09-19 13:20:55,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1020 [2018-09-19 13:20:55,296 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:20:55,297 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:20:55,299 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:20:55,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1799364417, now seen corresponding path program 1 times [2018-09-19 13:20:55,299 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:20:55,300 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1020 with the following transitions: [2018-09-19 13:20:55,301 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [795], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2408], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 13:20:55,309 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:20:55,310 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:20:55,771 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:20:56,953 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:20:56,953 INFO L272 AbstractInterpreter]: Visited 537 different actions 3225 times. Merged at 10 different actions 58 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:20:56,979 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:20:57,960 INFO L232 lantSequenceWeakener]: Weakened 1016 states. On average, predicates are now at 77.39% of their original sizes. [2018-09-19 13:20:57,961 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:20:58,509 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:20:58,509 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:20:58,510 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:20:58,510 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:20:58,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:20:58,511 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:20:58,511 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:20:58,512 INFO L87 Difference]: Start difference. First operand 6454 states and 7378 transitions. Second operand 18 states. [2018-09-19 13:21:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:21:13,298 INFO L93 Difference]: Finished difference Result 10837 states and 13341 transitions. [2018-09-19 13:21:13,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-19 13:21:13,299 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1019 [2018-09-19 13:21:13,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:21:13,318 INFO L225 Difference]: With dead ends: 10837 [2018-09-19 13:21:13,318 INFO L226 Difference]: Without dead ends: 7225 [2018-09-19 13:21:13,328 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1037 GetRequests, 1002 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=168, Invalid=1164, Unknown=0, NotChecked=0, Total=1332 [2018-09-19 13:21:13,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7225 states. [2018-09-19 13:21:13,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7225 to 7182. [2018-09-19 13:21:13,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7182 states. [2018-09-19 13:21:13,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7182 states to 7182 states and 8179 transitions. [2018-09-19 13:21:13,439 INFO L78 Accepts]: Start accepts. Automaton has 7182 states and 8179 transitions. Word has length 1019 [2018-09-19 13:21:13,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:21:13,440 INFO L480 AbstractCegarLoop]: Abstraction has 7182 states and 8179 transitions. [2018-09-19 13:21:13,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:21:13,440 INFO L276 IsEmpty]: Start isEmpty. Operand 7182 states and 8179 transitions. [2018-09-19 13:21:13,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1021 [2018-09-19 13:21:13,456 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:21:13,457 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:21:13,458 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:21:13,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1316001870, now seen corresponding path program 1 times [2018-09-19 13:21:13,458 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:21:13,459 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1021 with the following transitions: [2018-09-19 13:21:13,460 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [795], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2412], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 13:21:13,468 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:21:13,468 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:21:14,267 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:21:15,015 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:21:15,015 INFO L272 AbstractInterpreter]: Visited 537 different actions 2148 times. Merged at 10 different actions 33 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:21:15,027 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:21:16,085 INFO L232 lantSequenceWeakener]: Weakened 1017 states. On average, predicates are now at 77.39% of their original sizes. [2018-09-19 13:21:16,085 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:21:16,362 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:21:16,362 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:21:16,362 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:21:16,362 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:21:16,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:21:16,364 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:21:16,364 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:21:16,364 INFO L87 Difference]: Start difference. First operand 7182 states and 8179 transitions. Second operand 18 states. [2018-09-19 13:21:28,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:21:28,606 INFO L93 Difference]: Finished difference Result 13030 states and 15761 transitions. [2018-09-19 13:21:28,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-19 13:21:28,607 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1020 [2018-09-19 13:21:28,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:21:28,629 INFO L225 Difference]: With dead ends: 13030 [2018-09-19 13:21:28,629 INFO L226 Difference]: Without dead ends: 8690 [2018-09-19 13:21:28,639 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1038 GetRequests, 1003 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=1164, Unknown=0, NotChecked=0, Total=1332 [2018-09-19 13:21:28,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2018-09-19 13:21:28,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 8618. [2018-09-19 13:21:28,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8618 states. [2018-09-19 13:21:28,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8618 states to 8618 states and 9732 transitions. [2018-09-19 13:21:28,763 INFO L78 Accepts]: Start accepts. Automaton has 8618 states and 9732 transitions. Word has length 1020 [2018-09-19 13:21:28,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:21:28,765 INFO L480 AbstractCegarLoop]: Abstraction has 8618 states and 9732 transitions. [2018-09-19 13:21:28,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:21:28,765 INFO L276 IsEmpty]: Start isEmpty. Operand 8618 states and 9732 transitions. [2018-09-19 13:21:28,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1045 [2018-09-19 13:21:28,783 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:21:28,784 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:21:28,785 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:21:28,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1260502744, now seen corresponding path program 1 times [2018-09-19 13:21:28,785 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:21:28,786 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1045 with the following transitions: [2018-09-19 13:21:28,786 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [795], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2144], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 13:21:28,794 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:21:28,795 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:21:29,291 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:21:30,778 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:21:30,778 INFO L272 AbstractInterpreter]: Visited 538 different actions 3236 times. Merged at 11 different actions 63 times. Widened at 1 different actions 1 times. Found 13 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:21:30,783 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:21:32,252 INFO L232 lantSequenceWeakener]: Weakened 1041 states. On average, predicates are now at 77.39% of their original sizes. [2018-09-19 13:21:32,253 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:21:32,556 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:21:32,556 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:21:32,556 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:21:32,556 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:21:32,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:21:32,557 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:21:32,557 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:21:32,558 INFO L87 Difference]: Start difference. First operand 8618 states and 9732 transitions. Second operand 18 states. [2018-09-19 13:21:45,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:21:45,054 INFO L93 Difference]: Finished difference Result 15966 states and 18947 transitions. [2018-09-19 13:21:45,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-19 13:21:45,054 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1044 [2018-09-19 13:21:45,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:21:45,079 INFO L225 Difference]: With dead ends: 15966 [2018-09-19 13:21:45,079 INFO L226 Difference]: Without dead ends: 10190 [2018-09-19 13:21:45,091 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1062 GetRequests, 1027 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=1164, Unknown=0, NotChecked=0, Total=1332 [2018-09-19 13:21:45,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10190 states. [2018-09-19 13:21:45,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10190 to 10067. [2018-09-19 13:21:45,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10067 states. [2018-09-19 13:21:45,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10067 states to 10067 states and 11367 transitions. [2018-09-19 13:21:45,245 INFO L78 Accepts]: Start accepts. Automaton has 10067 states and 11367 transitions. Word has length 1044 [2018-09-19 13:21:45,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:21:45,246 INFO L480 AbstractCegarLoop]: Abstraction has 10067 states and 11367 transitions. [2018-09-19 13:21:45,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:21:45,247 INFO L276 IsEmpty]: Start isEmpty. Operand 10067 states and 11367 transitions. [2018-09-19 13:21:45,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2018-09-19 13:21:45,264 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:21:45,265 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:21:45,266 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:21:45,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1076350909, now seen corresponding path program 1 times [2018-09-19 13:21:45,267 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:21:45,267 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1066 with the following transitions: [2018-09-19 13:21:45,268 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [795], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2144], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2284], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 13:21:45,276 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:21:45,276 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:21:45,757 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:21:47,069 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:21:47,069 INFO L272 AbstractInterpreter]: Visited 538 different actions 3236 times. Merged at 11 different actions 63 times. Widened at 1 different actions 1 times. Found 13 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:21:47,078 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:21:48,391 INFO L232 lantSequenceWeakener]: Weakened 1062 states. On average, predicates are now at 77.39% of their original sizes. [2018-09-19 13:21:48,391 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:21:48,641 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:21:48,641 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:21:48,641 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:21:48,641 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:21:48,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:21:48,642 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:21:48,642 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:21:48,643 INFO L87 Difference]: Start difference. First operand 10067 states and 11367 transitions. Second operand 18 states. [2018-09-19 13:22:05,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:22:05,487 INFO L93 Difference]: Finished difference Result 18880 states and 22272 transitions. [2018-09-19 13:22:05,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-19 13:22:05,487 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1065 [2018-09-19 13:22:05,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:22:05,517 INFO L225 Difference]: With dead ends: 18880 [2018-09-19 13:22:05,517 INFO L226 Difference]: Without dead ends: 11655 [2018-09-19 13:22:05,532 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1083 GetRequests, 1048 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=1164, Unknown=0, NotChecked=0, Total=1332 [2018-09-19 13:22:05,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11655 states. [2018-09-19 13:22:05,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11655 to 11529. [2018-09-19 13:22:05,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11529 states. [2018-09-19 13:22:05,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11529 states to 11529 states and 13059 transitions. [2018-09-19 13:22:05,704 INFO L78 Accepts]: Start accepts. Automaton has 11529 states and 13059 transitions. Word has length 1065 [2018-09-19 13:22:05,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:22:05,705 INFO L480 AbstractCegarLoop]: Abstraction has 11529 states and 13059 transitions. [2018-09-19 13:22:05,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:22:05,705 INFO L276 IsEmpty]: Start isEmpty. Operand 11529 states and 13059 transitions. [2018-09-19 13:22:05,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2018-09-19 13:22:05,724 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:22:05,725 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:22:05,725 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:22:05,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1989943392, now seen corresponding path program 1 times [2018-09-19 13:22:05,726 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:22:05,726 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1073 with the following transitions: [2018-09-19 13:22:05,727 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [795], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2144], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2312], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 13:22:05,736 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:22:05,736 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:22:06,222 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:22:07,502 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:22:07,502 INFO L272 AbstractInterpreter]: Visited 538 different actions 3237 times. Merged at 11 different actions 64 times. Widened at 1 different actions 1 times. Found 13 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:22:07,510 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:22:08,960 INFO L232 lantSequenceWeakener]: Weakened 1069 states. On average, predicates are now at 77.39% of their original sizes. [2018-09-19 13:22:08,960 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:22:09,269 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:22:09,269 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:22:09,270 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:22:09,270 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:22:09,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:22:09,271 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:22:09,271 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:22:09,271 INFO L87 Difference]: Start difference. First operand 11529 states and 13059 transitions. Second operand 18 states. [2018-09-19 13:22:36,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:22:36,996 INFO L93 Difference]: Finished difference Result 22489 states and 27051 transitions. [2018-09-19 13:22:36,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-09-19 13:22:36,997 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1072 [2018-09-19 13:22:36,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:22:37,022 INFO L225 Difference]: With dead ends: 22489 [2018-09-19 13:22:37,022 INFO L226 Difference]: Without dead ends: 13802 [2018-09-19 13:22:37,036 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1091 GetRequests, 1055 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=174, Invalid=1232, Unknown=0, NotChecked=0, Total=1406 [2018-09-19 13:22:37,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13802 states. [2018-09-19 13:22:37,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13802 to 13673. [2018-09-19 13:22:37,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13673 states. [2018-09-19 13:22:37,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13673 states to 13673 states and 15437 transitions. [2018-09-19 13:22:37,202 INFO L78 Accepts]: Start accepts. Automaton has 13673 states and 15437 transitions. Word has length 1072 [2018-09-19 13:22:37,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:22:37,203 INFO L480 AbstractCegarLoop]: Abstraction has 13673 states and 15437 transitions. [2018-09-19 13:22:37,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:22:37,204 INFO L276 IsEmpty]: Start isEmpty. Operand 13673 states and 15437 transitions. [2018-09-19 13:22:37,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1092 [2018-09-19 13:22:37,221 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:22:37,222 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:22:37,222 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:22:37,222 INFO L82 PathProgramCache]: Analyzing trace with hash 841450601, now seen corresponding path program 1 times [2018-09-19 13:22:37,223 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:22:37,223 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1092 with the following transitions: [2018-09-19 13:22:37,224 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [795], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2408], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 13:22:37,232 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:22:37,232 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:22:37,592 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:22:39,124 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:22:39,124 INFO L272 AbstractInterpreter]: Visited 538 different actions 3778 times. Merged at 11 different actions 78 times. Widened at 1 different actions 2 times. Found 16 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:22:39,134 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:22:40,439 INFO L232 lantSequenceWeakener]: Weakened 1088 states. On average, predicates are now at 77.39% of their original sizes. [2018-09-19 13:22:40,439 INFO L412 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-09-19 13:22:40,626 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 13:22:40,631 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 13:22:40,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:22:40 BoogieIcfgContainer [2018-09-19 13:22:40,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 13:22:40,633 INFO L168 Benchmark]: Toolchain (without parser) took 234833.04 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-09-19 13:22:40,636 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 13:22:40,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1725.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-19 13:22:40,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 214.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-19 13:22:40,640 INFO L168 Benchmark]: Boogie Preprocessor took 607.37 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 863.0 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2018-09-19 13:22:40,642 INFO L168 Benchmark]: RCFGBuilder took 7732.15 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 501.5 MB). Peak memory consumption was 501.5 MB. Max. memory is 7.1 GB. [2018-09-19 13:22:40,643 INFO L168 Benchmark]: TraceAbstraction took 224546.20 ms. Allocated memory was 2.4 GB in the beginning and 3.8 GB in the end (delta: 1.4 GB). Free memory was 1.8 GB in the beginning and 2.6 GB in the end (delta: -823.6 MB). Peak memory consumption was 581.5 MB. Max. memory is 7.1 GB. [2018-09-19 13:22:40,651 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1725.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 214.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 607.37 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 863.0 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7732.15 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 501.5 MB). Peak memory consumption was 501.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224546.20 ms. Allocated memory was 2.4 GB in the beginning and 3.8 GB in the end (delta: 1.4 GB). Free memory was 1.8 GB in the beginning and 2.6 GB in the end (delta: -823.6 MB). Peak memory consumption was 581.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 108). Cancelled while BasicCegarLoop was analyzing trace of length 1092 with TraceHistMax 5, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 224.4s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 185.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8957 SDtfs, 36862 SDslu, 7264 SDs, 0 SdLazy, 166221 SolverSat, 10692 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 153.0s Time, PredicateUnifierStatistics: 24 DeclaredPredicates, 9813 GetRequests, 9447 SyntacticMatches, 0 SemanticMatches, 366 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2062 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13673occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 19.5s AbstIntTime, 13 AbstIntIterations, 13 AbstIntStrong, 0.998380290974287 AbsIntWeakeningRatio, 0.047623494257166867 AbsIntAvgWeakeningVarsNumRemoved, 23.313754785694275 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 620 StatesRemovedByMinimization, 12 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/Problem18_label53_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_13-22-40-666.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label53_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_13-22-40-666.csv Completed graceful shutdown