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_label58_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 13:20:42,597 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 13:20:42,600 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 13:20:42,612 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 13:20:42,612 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 13:20:42,613 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 13:20:42,614 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 13:20:42,616 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 13:20:42,618 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 13:20:42,619 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 13:20:42,620 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 13:20:42,622 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 13:20:42,623 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 13:20:42,624 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 13:20:42,625 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 13:20:42,628 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 13:20:42,629 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 13:20:42,634 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 13:20:42,636 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 13:20:42,639 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 13:20:42,640 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 13:20:42,645 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 13:20:42,651 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 13:20:42,651 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 13:20:42,651 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 13:20:42,652 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 13:20:42,653 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 13:20:42,655 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 13:20:42,659 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 13:20:42,660 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 13:20:42,660 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 13:20:42,661 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 13:20:42,662 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 13:20:42,662 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 13:20:42,663 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 13:20:42,664 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 13:20:42,664 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 13:20:42,690 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 13:20:42,691 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 13:20:42,692 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 13:20:42,692 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 13:20:42,692 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 13:20:42,692 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 13:20:42,696 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 13:20:42,696 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 13:20:42,697 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 13:20:42,697 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 13:20:42,697 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 13:20:42,697 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 13:20:42,698 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 13:20:42,699 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 13:20:42,699 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 13:20:42,699 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 13:20:42,699 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 13:20:42,699 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 13:20:42,700 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 13:20:42,700 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 13:20:42,700 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 13:20:42,700 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 13:20:42,702 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 13:20:42,703 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 13:20:42,703 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 13:20:42,703 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 13:20:42,703 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 13:20:42,703 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 13:20:42,704 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 13:20:42,704 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 13:20:42,704 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 13:20:42,704 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 13:20:42,704 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 13:20:42,704 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 13:20:42,776 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 13:20:42,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 13:20:42,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 13:20:42,801 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 13:20:42,801 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 13:20:42,802 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label58_true-unreach-call.c [2018-09-19 13:20:43,166 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/820c6ce2e/941c8c5481e2439a9b3947c4524fd5f9/FLAGeba5479d1 [2018-09-19 13:20:43,610 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 13:20:43,611 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label58_true-unreach-call.c [2018-09-19 13:20:43,638 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/820c6ce2e/941c8c5481e2439a9b3947c4524fd5f9/FLAGeba5479d1 [2018-09-19 13:20:43,660 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/820c6ce2e/941c8c5481e2439a9b3947c4524fd5f9 [2018-09-19 13:20:43,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 13:20:43,678 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 13:20:43,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 13:20:43,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 13:20:43,685 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 13:20:43,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:20:43" (1/1) ... [2018-09-19 13:20:43,689 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 01:20:43, skipping insertion in model container [2018-09-19 13:20:43,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:20:43" (1/1) ... [2018-09-19 13:20:43,703 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 13:20:44,724 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 13:20:44,745 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 13:20:45,155 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 13:20:45,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:20:45 WrapperNode [2018-09-19 13:20:45,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 13:20:45,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 13:20:45,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 13:20:45,306 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 13:20:45,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:20:45" (1/1) ... [2018-09-19 13:20:45,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:20:45" (1/1) ... [2018-09-19 13:20:45,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 13:20:45,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 13:20:45,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 13:20:45,503 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 13:20:45,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:20:45" (1/1) ... [2018-09-19 13:20:45,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:20:45" (1/1) ... [2018-09-19 13:20:45,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:20:45" (1/1) ... [2018-09-19 13:20:45,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:20:45" (1/1) ... [2018-09-19 13:20:46,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:20:45" (1/1) ... [2018-09-19 13:20:46,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:20:45" (1/1) ... [2018-09-19 13:20:46,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:20:45" (1/1) ... [2018-09-19 13:20:46,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 13:20:46,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 13:20:46,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 13:20:46,186 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 13:20:46,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:20:45" (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 13:20:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 13:20:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 13:20:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 13:20:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 13:20:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 13:20:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 13:20:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 13:20:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 13:20:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 13:20:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 13:20:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 13:20:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 13:20:54,121 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 13:20:54,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:20:54 BoogieIcfgContainer [2018-09-19 13:20:54,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 13:20:54,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 13:20:54,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 13:20:54,126 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 13:20:54,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:20:43" (1/3) ... [2018-09-19 13:20:54,128 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 01:20:54, skipping insertion in model container [2018-09-19 13:20:54,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:20:45" (2/3) ... [2018-09-19 13:20:54,128 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 01:20:54, skipping insertion in model container [2018-09-19 13:20:54,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:20:54" (3/3) ... [2018-09-19 13:20:54,130 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label58_true-unreach-call.c [2018-09-19 13:20:54,139 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 13:20:54,148 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 13:20:54,207 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 13:20:54,207 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 13:20:54,208 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 13:20:54,208 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 13:20:54,208 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 13:20:54,208 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 13:20:54,208 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 13:20:54,208 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 13:20:54,209 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 13:20:54,249 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-09-19 13:20:54,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-19 13:20:54,258 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:20:54,259 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:20:54,261 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:20:54,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1155307225, now seen corresponding path program 1 times [2018-09-19 13:20:54,273 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:20:54,274 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 48 with the following transitions: [2018-09-19 13:20:54,278 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], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [3000], [3004], [3010], [3014], [3025], [3026], [3027], [3029] [2018-09-19 13:20:54,326 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:20:54,326 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:20:54,555 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:20:54,559 INFO L272 AbstractInterpreter]: Visited 46 different actions 46 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 13:20:54,590 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:20:54,817 INFO L232 lantSequenceWeakener]: Weakened 44 states. On average, predicates are now at 79.92% of their original sizes. [2018-09-19 13:20:54,817 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:20:55,066 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:20:55,068 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:20:55,068 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 13:20:55,069 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:20:55,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 13:20:55,081 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 13:20:55,086 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 13:20:55,089 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 6 states. [2018-09-19 13:21:05,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:21:05,157 INFO L93 Difference]: Finished difference Result 2253 states and 4323 transitions. [2018-09-19 13:21:05,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 13:21:05,161 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-09-19 13:21:05,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:21:05,191 INFO L225 Difference]: With dead ends: 2253 [2018-09-19 13:21:05,191 INFO L226 Difference]: Without dead ends: 1476 [2018-09-19 13:21:05,202 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 46 GetRequests, 42 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 13:21:05,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2018-09-19 13:21:05,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1474. [2018-09-19 13:21:05,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-09-19 13:21:05,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2167 transitions. [2018-09-19 13:21:05,339 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2167 transitions. Word has length 47 [2018-09-19 13:21:05,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:21:05,340 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2167 transitions. [2018-09-19 13:21:05,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 13:21:05,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2167 transitions. [2018-09-19 13:21:05,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-09-19 13:21:05,353 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:21:05,354 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:21:05,354 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:21:05,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1098624251, now seen corresponding path program 1 times [2018-09-19 13:21:05,355 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:21:05,355 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2018-09-19 13:21:05,356 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], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [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 13:21:05,368 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:21:05,368 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:21:05,893 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:21:05,894 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 13:21:05,931 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:21:06,442 INFO L232 lantSequenceWeakener]: Weakened 231 states. On average, predicates are now at 77.82% of their original sizes. [2018-09-19 13:21:06,442 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:21:06,694 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:21:06,695 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:21:06,695 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:21:06,695 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:21:06,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:21:06,697 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:21:06,697 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:21:06,697 INFO L87 Difference]: Start difference. First operand 1474 states and 2167 transitions. Second operand 10 states. [2018-09-19 13:21:21,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:21:21,121 INFO L93 Difference]: Finished difference Result 2950 states and 5022 transitions. [2018-09-19 13:21:21,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:21:21,123 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 234 [2018-09-19 13:21:21,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:21:21,136 INFO L225 Difference]: With dead ends: 2950 [2018-09-19 13:21:21,136 INFO L226 Difference]: Without dead ends: 2185 [2018-09-19 13:21:21,141 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 240 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:21:21,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2185 states. [2018-09-19 13:21:21,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2185 to 2180. [2018-09-19 13:21:21,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2018-09-19 13:21:21,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 2888 transitions. [2018-09-19 13:21:21,204 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 2888 transitions. Word has length 234 [2018-09-19 13:21:21,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:21:21,205 INFO L480 AbstractCegarLoop]: Abstraction has 2180 states and 2888 transitions. [2018-09-19 13:21:21,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:21:21,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 2888 transitions. [2018-09-19 13:21:21,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2018-09-19 13:21:21,235 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:21:21,236 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:21:21,237 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:21:21,237 INFO L82 PathProgramCache]: Analyzing trace with hash -845854530, now seen corresponding path program 1 times [2018-09-19 13:21:21,237 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:21:21,239 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 576 with the following transitions: [2018-09-19 13:21:21,241 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], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [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 13:21:21,271 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:21:21,271 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:21:22,216 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:21:22,216 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 13:21:22,253 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:21:23,246 INFO L232 lantSequenceWeakener]: Weakened 572 states. On average, predicates are now at 77.5% of their original sizes. [2018-09-19 13:21:23,246 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:21:24,183 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:21:24,184 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:21:24,184 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:21:24,184 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:21:24,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:21:24,186 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:21:24,187 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:21:24,187 INFO L87 Difference]: Start difference. First operand 2180 states and 2888 transitions. Second operand 18 states. [2018-09-19 13:21:39,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:21:39,618 INFO L93 Difference]: Finished difference Result 3659 states and 5742 transitions. [2018-09-19 13:21:39,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 13:21:39,625 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 575 [2018-09-19 13:21:39,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:21:39,643 INFO L225 Difference]: With dead ends: 3659 [2018-09-19 13:21:39,643 INFO L226 Difference]: Without dead ends: 2894 [2018-09-19 13:21:39,647 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 591 GetRequests, 558 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=156, Invalid=1034, Unknown=0, NotChecked=0, Total=1190 [2018-09-19 13:21:39,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2018-09-19 13:21:39,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2891. [2018-09-19 13:21:39,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2891 states. [2018-09-19 13:21:39,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 3614 transitions. [2018-09-19 13:21:39,839 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 3614 transitions. Word has length 575 [2018-09-19 13:21:39,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:21:39,841 INFO L480 AbstractCegarLoop]: Abstraction has 2891 states and 3614 transitions. [2018-09-19 13:21:39,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:21:39,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 3614 transitions. [2018-09-19 13:21:39,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2018-09-19 13:21:39,869 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:21:39,870 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:21:39,870 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:21:39,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1113798300, now seen corresponding path program 1 times [2018-09-19 13:21:39,871 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:21:39,872 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 763 with the following transitions: [2018-09-19 13:21:39,873 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], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [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 13:21:39,882 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:21:39,882 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:21:40,988 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:21:40,989 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 13:21:41,028 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:21:41,934 INFO L232 lantSequenceWeakener]: Weakened 759 states. On average, predicates are now at 77.46% of their original sizes. [2018-09-19 13:21:41,934 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:21:42,295 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:21:42,295 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:21:42,295 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:21:42,295 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:21:42,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:21:42,298 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:21:42,298 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:21:42,299 INFO L87 Difference]: Start difference. First operand 2891 states and 3614 transitions. Second operand 18 states. [2018-09-19 13:21:56,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:21:56,900 INFO L93 Difference]: Finished difference Result 4379 states and 6480 transitions. [2018-09-19 13:21:56,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 13:21:56,905 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 762 [2018-09-19 13:21:56,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:21:56,922 INFO L225 Difference]: With dead ends: 4379 [2018-09-19 13:21:56,923 INFO L226 Difference]: Without dead ends: 3614 [2018-09-19 13:21:56,926 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 778 GetRequests, 745 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=1034, Unknown=0, NotChecked=0, Total=1190 [2018-09-19 13:21:56,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2018-09-19 13:21:56,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3607. [2018-09-19 13:21:56,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3607 states. [2018-09-19 13:21:57,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3607 states to 3607 states and 4352 transitions. [2018-09-19 13:21:57,009 INFO L78 Accepts]: Start accepts. Automaton has 3607 states and 4352 transitions. Word has length 762 [2018-09-19 13:21:57,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:21:57,011 INFO L480 AbstractCegarLoop]: Abstraction has 3607 states and 4352 transitions. [2018-09-19 13:21:57,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:21:57,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3607 states and 4352 transitions. [2018-09-19 13:21:57,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 884 [2018-09-19 13:21:57,023 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:21:57,024 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:21:57,024 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:21:57,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1247426557, now seen corresponding path program 1 times [2018-09-19 13:21:57,025 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:21:57,025 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 884 with the following transitions: [2018-09-19 13:21:57,026 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], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [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 13:21:57,035 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:21:57,035 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:21:57,595 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:21:59,055 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:21:59,055 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 13:21:59,081 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:22:00,375 INFO L232 lantSequenceWeakener]: Weakened 880 states. On average, predicates are now at 77.43% of their original sizes. [2018-09-19 13:22:00,375 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:22:00,627 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:22:00,627 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:22:00,628 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:22:00,628 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:22:00,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:22:00,629 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:22:00,629 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:22:00,630 INFO L87 Difference]: Start difference. First operand 3607 states and 4352 transitions. Second operand 18 states. [2018-09-19 13:22:14,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:22:14,738 INFO L93 Difference]: Finished difference Result 5108 states and 7232 transitions. [2018-09-19 13:22:14,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-09-19 13:22:14,739 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 883 [2018-09-19 13:22:14,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:22:14,757 INFO L225 Difference]: With dead ends: 5108 [2018-09-19 13:22:14,757 INFO L226 Difference]: Without dead ends: 4343 [2018-09-19 13:22:14,762 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 900 GetRequests, 866 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 13:22:14,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4343 states. [2018-09-19 13:22:14,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4343 to 4322. [2018-09-19 13:22:14,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4322 states. [2018-09-19 13:22:14,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4322 states to 4322 states and 5100 transitions. [2018-09-19 13:22:14,843 INFO L78 Accepts]: Start accepts. Automaton has 4322 states and 5100 transitions. Word has length 883 [2018-09-19 13:22:14,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:22:14,845 INFO L480 AbstractCegarLoop]: Abstraction has 4322 states and 5100 transitions. [2018-09-19 13:22:14,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:22:14,845 INFO L276 IsEmpty]: Start isEmpty. Operand 4322 states and 5100 transitions. [2018-09-19 13:22:14,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2018-09-19 13:22:14,858 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:22:14,859 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 13:22:14,859 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:22:14,859 INFO L82 PathProgramCache]: Analyzing trace with hash 57253875, now seen corresponding path program 1 times [2018-09-19 13:22:14,860 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:22:14,860 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 961 with the following transitions: [2018-09-19 13:22:14,861 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], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [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 13:22:14,868 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:22:14,868 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:22:15,409 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:22:16,633 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:22:16,634 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 13:22:16,636 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:22:17,808 INFO L232 lantSequenceWeakener]: Weakened 957 states. On average, predicates are now at 77.43% of their original sizes. [2018-09-19 13:22:17,808 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:22:18,057 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:22:18,057 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:22:18,057 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:22:18,057 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:22:18,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:22:18,058 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:22:18,059 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:22:18,059 INFO L87 Difference]: Start difference. First operand 4322 states and 5100 transitions. Second operand 18 states. [2018-09-19 13:22:31,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:22:31,931 INFO L93 Difference]: Finished difference Result 6563 states and 8761 transitions. [2018-09-19 13:22:31,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-19 13:22:31,939 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 960 [2018-09-19 13:22:31,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:22:31,966 INFO L225 Difference]: With dead ends: 6563 [2018-09-19 13:22:31,966 INFO L226 Difference]: Without dead ends: 5083 [2018-09-19 13:22:31,972 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 978 GetRequests, 943 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 13:22:31,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5083 states. [2018-09-19 13:22:32,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5083 to 5043. [2018-09-19 13:22:32,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5043 states. [2018-09-19 13:22:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5043 states to 5043 states and 5874 transitions. [2018-09-19 13:22:32,061 INFO L78 Accepts]: Start accepts. Automaton has 5043 states and 5874 transitions. Word has length 960 [2018-09-19 13:22:32,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:22:32,063 INFO L480 AbstractCegarLoop]: Abstraction has 5043 states and 5874 transitions. [2018-09-19 13:22:32,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:22:32,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5043 states and 5874 transitions. [2018-09-19 13:22:32,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1000 [2018-09-19 13:22:32,079 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:22:32,080 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 13:22:32,080 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:22:32,081 INFO L82 PathProgramCache]: Analyzing trace with hash 700095178, now seen corresponding path program 1 times [2018-09-19 13:22:32,081 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:22:32,081 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1000 with the following transitions: [2018-09-19 13:22:32,082 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], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [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 13:22:32,089 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:22:32,090 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:22:32,606 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:22:34,277 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:22:34,278 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 13:22:34,291 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:22:35,639 INFO L232 lantSequenceWeakener]: Weakened 996 states. On average, predicates are now at 77.42% of their original sizes. [2018-09-19 13:22:35,640 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:22:35,914 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:22:35,914 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:22:35,915 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:22:35,915 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:22:35,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:22:35,916 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:22:35,916 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:22:35,916 INFO L87 Difference]: Start difference. First operand 5043 states and 5874 transitions. Second operand 18 states. [2018-09-19 13:23:01,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:23:01,691 INFO L93 Difference]: Finished difference Result 8704 states and 11704 transitions. [2018-09-19 13:23:01,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-19 13:23:01,694 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 999 [2018-09-19 13:23:01,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:23:01,719 INFO L225 Difference]: With dead ends: 8704 [2018-09-19 13:23:01,719 INFO L226 Difference]: Without dead ends: 6503 [2018-09-19 13:23:01,728 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1018 GetRequests, 982 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 13:23:01,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6503 states. [2018-09-19 13:23:01,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6503 to 6454. [2018-09-19 13:23:01,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6454 states. [2018-09-19 13:23:01,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6454 states to 6454 states and 7378 transitions. [2018-09-19 13:23:01,849 INFO L78 Accepts]: Start accepts. Automaton has 6454 states and 7378 transitions. Word has length 999 [2018-09-19 13:23:01,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:23:01,851 INFO L480 AbstractCegarLoop]: Abstraction has 6454 states and 7378 transitions. [2018-09-19 13:23:01,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:23:01,851 INFO L276 IsEmpty]: Start isEmpty. Operand 6454 states and 7378 transitions. [2018-09-19 13:23:01,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1027 [2018-09-19 13:23:01,866 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:23:01,867 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 13:23:01,867 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:23:01,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1100891177, now seen corresponding path program 1 times [2018-09-19 13:23:01,867 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:23:01,868 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1027 with the following transitions: [2018-09-19 13:23:01,868 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], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [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 13:23:01,876 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:23:01,876 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:23:02,335 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:23:03,758 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:23:03,759 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 13:23:03,768 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:23:04,689 INFO L232 lantSequenceWeakener]: Weakened 1023 states. On average, predicates are now at 77.42% of their original sizes. [2018-09-19 13:23:04,689 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:23:04,979 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:23:04,979 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:23:04,979 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:23:04,979 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:23:04,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:23:04,981 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:23:04,981 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:23:04,981 INFO L87 Difference]: Start difference. First operand 6454 states and 7378 transitions. Second operand 18 states. [2018-09-19 13:23:19,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:23:19,970 INFO L93 Difference]: Finished difference Result 10837 states and 13341 transitions. [2018-09-19 13:23:19,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-19 13:23:19,971 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1026 [2018-09-19 13:23:19,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:23:19,989 INFO L225 Difference]: With dead ends: 10837 [2018-09-19 13:23:19,989 INFO L226 Difference]: Without dead ends: 7225 [2018-09-19 13:23:20,000 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1044 GetRequests, 1009 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 13:23:20,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7225 states. [2018-09-19 13:23:20,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7225 to 7182. [2018-09-19 13:23:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7182 states. [2018-09-19 13:23:20,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7182 states to 7182 states and 8179 transitions. [2018-09-19 13:23:20,117 INFO L78 Accepts]: Start accepts. Automaton has 7182 states and 8179 transitions. Word has length 1026 [2018-09-19 13:23:20,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:23:20,118 INFO L480 AbstractCegarLoop]: Abstraction has 7182 states and 8179 transitions. [2018-09-19 13:23:20,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:23:20,118 INFO L276 IsEmpty]: Start isEmpty. Operand 7182 states and 8179 transitions. [2018-09-19 13:23:20,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1028 [2018-09-19 13:23:20,134 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:23:20,134 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 13:23:20,135 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:23:20,135 INFO L82 PathProgramCache]: Analyzing trace with hash 734524098, now seen corresponding path program 1 times [2018-09-19 13:23:20,135 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:23:20,136 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1028 with the following transitions: [2018-09-19 13:23:20,136 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], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [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 13:23:20,143 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:23:20,144 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:23:20,648 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:23:21,440 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:23:21,441 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 13:23:21,461 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:23:22,646 INFO L232 lantSequenceWeakener]: Weakened 1024 states. On average, predicates are now at 77.42% of their original sizes. [2018-09-19 13:23:22,646 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:23:22,879 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:23:22,879 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:23:22,879 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:23:22,879 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:23:22,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:23:22,881 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:23:22,881 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:23:22,881 INFO L87 Difference]: Start difference. First operand 7182 states and 8179 transitions. Second operand 18 states. [2018-09-19 13:23:41,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:23:41,002 INFO L93 Difference]: Finished difference Result 13030 states and 15761 transitions. [2018-09-19 13:23:41,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-19 13:23:41,002 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1027 [2018-09-19 13:23:41,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:23:41,021 INFO L225 Difference]: With dead ends: 13030 [2018-09-19 13:23:41,021 INFO L226 Difference]: Without dead ends: 8690 [2018-09-19 13:23:41,031 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1045 GetRequests, 1010 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 13:23:41,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2018-09-19 13:23:41,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 8618. [2018-09-19 13:23:41,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8618 states. [2018-09-19 13:23:41,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8618 states to 8618 states and 9732 transitions. [2018-09-19 13:23:41,153 INFO L78 Accepts]: Start accepts. Automaton has 8618 states and 9732 transitions. Word has length 1027 [2018-09-19 13:23:41,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:23:41,154 INFO L480 AbstractCegarLoop]: Abstraction has 8618 states and 9732 transitions. [2018-09-19 13:23:41,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:23:41,155 INFO L276 IsEmpty]: Start isEmpty. Operand 8618 states and 9732 transitions. [2018-09-19 13:23:41,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1052 [2018-09-19 13:23:41,171 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:23:41,172 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, 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, 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 13:23:41,172 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:23:41,172 INFO L82 PathProgramCache]: Analyzing trace with hash 50135545, now seen corresponding path program 1 times [2018-09-19 13:23:41,173 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:23:41,173 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1052 with the following transitions: [2018-09-19 13:23:41,173 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], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [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 13:23:41,181 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:23:41,181 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:23:41,678 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:23:43,217 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:23:43,217 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 13:23:43,226 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:23:44,807 INFO L232 lantSequenceWeakener]: Weakened 1048 states. On average, predicates are now at 77.42% of their original sizes. [2018-09-19 13:23:44,807 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:23:45,079 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:23:45,079 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:23:45,079 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:23:45,079 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:23:45,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:23:45,081 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:23:45,081 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:23:45,081 INFO L87 Difference]: Start difference. First operand 8618 states and 9732 transitions. Second operand 18 states. [2018-09-19 13:24:00,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:24:00,870 INFO L93 Difference]: Finished difference Result 15966 states and 18947 transitions. [2018-09-19 13:24:00,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-19 13:24:00,871 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1051 [2018-09-19 13:24:00,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:24:00,894 INFO L225 Difference]: With dead ends: 15966 [2018-09-19 13:24:00,894 INFO L226 Difference]: Without dead ends: 10190 [2018-09-19 13:24:00,905 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1069 GetRequests, 1034 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 13:24:00,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10190 states. [2018-09-19 13:24:01,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10190 to 10067. [2018-09-19 13:24:01,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10067 states. [2018-09-19 13:24:01,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10067 states to 10067 states and 11367 transitions. [2018-09-19 13:24:01,050 INFO L78 Accepts]: Start accepts. Automaton has 10067 states and 11367 transitions. Word has length 1051 [2018-09-19 13:24:01,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:24:01,051 INFO L480 AbstractCegarLoop]: Abstraction has 10067 states and 11367 transitions. [2018-09-19 13:24:01,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:24:01,051 INFO L276 IsEmpty]: Start isEmpty. Operand 10067 states and 11367 transitions. [2018-09-19 13:24:01,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2018-09-19 13:24:01,071 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:24:01,072 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 13:24:01,072 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:24:01,072 INFO L82 PathProgramCache]: Analyzing trace with hash -2103094152, now seen corresponding path program 1 times [2018-09-19 13:24:01,072 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:24:01,073 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1073 with the following transitions: [2018-09-19 13:24:01,073 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], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [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 13:24:01,081 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:24:01,081 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:24:01,550 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:24:02,875 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:24:02,875 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 13:24:02,884 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:24:04,236 INFO L232 lantSequenceWeakener]: Weakened 1069 states. On average, predicates are now at 77.42% of their original sizes. [2018-09-19 13:24:04,236 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:24:04,567 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:24:04,568 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:24:04,568 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:24:04,568 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:24:04,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:24:04,569 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:24:04,569 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:24:04,569 INFO L87 Difference]: Start difference. First operand 10067 states and 11367 transitions. Second operand 18 states. [2018-09-19 13:24:20,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:24:20,901 INFO L93 Difference]: Finished difference Result 18880 states and 22272 transitions. [2018-09-19 13:24:20,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-19 13:24:20,902 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1072 [2018-09-19 13:24:20,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:24:20,928 INFO L225 Difference]: With dead ends: 18880 [2018-09-19 13:24:20,928 INFO L226 Difference]: Without dead ends: 11655 [2018-09-19 13:24:20,941 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1090 GetRequests, 1055 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 13:24:20,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11655 states. [2018-09-19 13:24:21,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11655 to 11529. [2018-09-19 13:24:21,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11529 states. [2018-09-19 13:24:21,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11529 states to 11529 states and 13059 transitions. [2018-09-19 13:24:21,093 INFO L78 Accepts]: Start accepts. Automaton has 11529 states and 13059 transitions. Word has length 1072 [2018-09-19 13:24:21,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:24:21,094 INFO L480 AbstractCegarLoop]: Abstraction has 11529 states and 13059 transitions. [2018-09-19 13:24:21,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-19 13:24:21,094 INFO L276 IsEmpty]: Start isEmpty. Operand 11529 states and 13059 transitions. [2018-09-19 13:24:21,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1080 [2018-09-19 13:24:21,112 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:24:21,113 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 13:24:21,113 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:24:21,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1802174863, now seen corresponding path program 1 times [2018-09-19 13:24:21,113 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:24:21,114 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1080 with the following transitions: [2018-09-19 13:24:21,114 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], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [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 13:24:21,122 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:24:21,122 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:24:21,605 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:24:22,979 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:24:22,979 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 13:24:22,987 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:24:24,434 INFO L232 lantSequenceWeakener]: Weakened 1076 states. On average, predicates are now at 77.42% of their original sizes. [2018-09-19 13:24:24,435 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:24:24,884 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:24:24,884 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:24:24,884 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 13:24:24,885 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:24:24,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 13:24:24,885 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 13:24:24,886 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:24:24,886 INFO L87 Difference]: Start difference. First operand 11529 states and 13059 transitions. Second operand 18 states. Received shutdown request... [2018-09-19 13:24:36,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-09-19 13:24:36,883 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 13:24:36,889 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 13:24:36,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:24:36 BoogieIcfgContainer [2018-09-19 13:24:36,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 13:24:36,891 INFO L168 Benchmark]: Toolchain (without parser) took 233216.09 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 507.9 MB. Max. memory is 7.1 GB. [2018-09-19 13:24:36,892 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 13:24:36,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1626.21 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 13:24:36,894 INFO L168 Benchmark]: Boogie Procedure Inliner took 197.11 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 13:24:36,895 INFO L168 Benchmark]: Boogie Preprocessor took 682.66 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 880.8 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 13:24:36,896 INFO L168 Benchmark]: RCFGBuilder took 7936.77 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: 488.7 MB). Peak memory consumption was 488.7 MB. Max. memory is 7.1 GB. [2018-09-19 13:24:36,896 INFO L168 Benchmark]: TraceAbstraction took 222766.69 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 1.8 GB in the beginning and 3.3 GB in the end (delta: -1.5 GB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. [2018-09-19 13:24:36,901 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1626.21 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 197.11 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 682.66 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 880.8 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 7936.77 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: 488.7 MB). Peak memory consumption was 488.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 222766.69 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 1.8 GB in the beginning and 3.3 GB in the end (delta: -1.5 GB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 129). Cancelled while BasicCegarLoop was constructing difference of abstraction (11529states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement), while ReachableStatesComputation was computing reachable states (6734 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 222.6s OverallTime, 12 OverallIterations, 5 TraceHistogramMax, 185.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8474 SDtfs, 34243 SDslu, 7947 SDs, 0 SdLazy, 167314 SolverSat, 9350 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 153.2s Time, PredicateUnifierStatistics: 24 DeclaredPredicates, 9895 GetRequests, 9531 SyntacticMatches, 0 SemanticMatches, 364 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2023 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11529occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 18.0s AbstIntTime, 12 AbstIntIterations, 12 AbstIntStrong, 0.9984002611419464 AbsIntWeakeningRatio, 0.04740801813871998 AbsIntAvgWeakeningVarsNumRemoved, 23.04998454086365 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 491 StatesRemovedByMinimization, 11 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_label58_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_13-24-36-915.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label58_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_13-24-36-915.csv Completed graceful shutdown