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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 06:22:52,916 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 06:22:52,918 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 06:22:52,932 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 06:22:52,932 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 06:22:52,933 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 06:22:52,934 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 06:22:52,936 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 06:22:52,938 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 06:22:52,938 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 06:22:52,939 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 06:22:52,940 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 06:22:52,940 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 06:22:52,943 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 06:22:52,944 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 06:22:52,945 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 06:22:52,948 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 06:22:52,950 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 06:22:52,955 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 06:22:52,960 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 06:22:52,961 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 06:22:52,964 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 06:22:52,967 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 06:22:52,977 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-19 06:22:53,004 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 06:22:53,004 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 06:22:53,005 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 06:22:53,005 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 06:22:53,006 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 06:22:53,006 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 06:22:53,006 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 06:22:53,006 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 06:22:53,006 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 06:22:53,007 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-19 06:22:53,007 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 06:22:53,007 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 06:22:53,007 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 06:22:53,008 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 06:22:53,008 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 06:22:53,008 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 06:22:53,009 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 06:22:53,009 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 06:22:53,009 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 06:22:53,009 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 06:22:53,009 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 06:22:53,009 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 06:22:53,010 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 06:22:53,010 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 06:22:53,010 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 06:22:53,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 06:22:53,012 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 06:22:53,012 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 06:22:53,012 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 06:22:53,012 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 06:22:53,013 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 06:22:53,013 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 06:22:53,013 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 06:22:53,013 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 06:22:53,014 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 06:22:53,064 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 06:22:53,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 06:22:53,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 06:22:53,083 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 06:22:53,084 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 06:22:53,085 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c [2018-09-19 06:22:53,446 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b74d6cf/98137420e7bc47c9b2d7873f00cb835f/FLAGc6402f412 [2018-09-19 06:22:53,805 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 06:22:53,808 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c [2018-09-19 06:22:53,829 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b74d6cf/98137420e7bc47c9b2d7873f00cb835f/FLAGc6402f412 [2018-09-19 06:22:53,845 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b74d6cf/98137420e7bc47c9b2d7873f00cb835f [2018-09-19 06:22:53,854 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 06:22:53,858 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 06:22:53,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 06:22:53,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 06:22:53,865 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 06:22:53,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 06:22:53" (1/1) ... [2018-09-19 06:22:53,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59918db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:53, skipping insertion in model container [2018-09-19 06:22:53,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 06:22:53" (1/1) ... [2018-09-19 06:22:53,880 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 06:22:54,641 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 06:22:54,662 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 06:22:54,916 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 06:22:55,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:55 WrapperNode [2018-09-19 06:22:55,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 06:22:55,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 06:22:55,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 06:22:55,034 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 06:22:55,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:55" (1/1) ... [2018-09-19 06:22:55,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:55" (1/1) ... [2018-09-19 06:22:55,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 06:22:55,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 06:22:55,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 06:22:55,280 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 06:22:55,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:55" (1/1) ... [2018-09-19 06:22:55,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:55" (1/1) ... [2018-09-19 06:22:55,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:55" (1/1) ... [2018-09-19 06:22:55,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:55" (1/1) ... [2018-09-19 06:22:55,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:55" (1/1) ... [2018-09-19 06:22:55,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:55" (1/1) ... [2018-09-19 06:22:55,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:55" (1/1) ... [2018-09-19 06:22:55,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 06:22:55,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 06:22:55,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 06:22:55,916 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 06:22:55,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:55" (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 06:22:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 06:22:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 06:22:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 06:22:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 06:22:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 06:22:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 06:22:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 06:22:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 06:22:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 06:22:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 06:23:02,678 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 06:23:02,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 06:23:02 BoogieIcfgContainer [2018-09-19 06:23:02,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 06:23:02,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 06:23:02,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 06:23:02,684 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 06:23:02,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 06:22:53" (1/3) ... [2018-09-19 06:23:02,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d45118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 06:23:02, skipping insertion in model container [2018-09-19 06:23:02,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:22:55" (2/3) ... [2018-09-19 06:23:02,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d45118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 06:23:02, skipping insertion in model container [2018-09-19 06:23:02,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 06:23:02" (3/3) ... [2018-09-19 06:23:02,689 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label35_true-unreach-call.c [2018-09-19 06:23:02,697 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 06:23:02,705 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 06:23:02,756 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 06:23:02,757 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 06:23:02,757 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 06:23:02,758 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 06:23:02,758 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 06:23:02,758 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 06:23:02,758 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 06:23:02,758 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 06:23:02,758 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 06:23:02,791 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-19 06:23:02,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-19 06:23:02,800 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:23:02,802 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] [2018-09-19 06:23:02,803 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:23:02,808 INFO L82 PathProgramCache]: Analyzing trace with hash -524388215, now seen corresponding path program 1 times [2018-09-19 06:23:02,810 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:23:02,811 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 44 with the following transitions: [2018-09-19 06:23:02,813 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-19 06:23:02,854 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:23:02,854 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:23:03,064 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:23:03,066 INFO L272 AbstractInterpreter]: Visited 42 different actions 42 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 06:23:03,099 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:23:03,223 INFO L232 lantSequenceWeakener]: Weakened 40 states. On average, predicates are now at 79.73% of their original sizes. [2018-09-19 06:23:03,223 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:23:03,409 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:23:03,411 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:23:03,411 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 06:23:03,412 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:23:03,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 06:23:03,425 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 06:23:03,426 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 06:23:03,428 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-19 06:23:11,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:23:11,663 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-19 06:23:11,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 06:23:11,665 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-09-19 06:23:11,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:23:11,688 INFO L225 Difference]: With dead ends: 1184 [2018-09-19 06:23:11,688 INFO L226 Difference]: Without dead ends: 744 [2018-09-19 06:23:11,696 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 06:23:11,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-19 06:23:11,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-19 06:23:11,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-19 06:23:11,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-19 06:23:11,810 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 43 [2018-09-19 06:23:11,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:23:11,810 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-19 06:23:11,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 06:23:11,811 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-19 06:23:11,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-09-19 06:23:11,823 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:23:11,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:23:11,824 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:23:11,825 INFO L82 PathProgramCache]: Analyzing trace with hash 360966111, now seen corresponding path program 1 times [2018-09-19 06:23:11,825 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:23:11,825 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 140 with the following transitions: [2018-09-19 06:23:11,826 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:23:11,838 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:23:11,838 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:23:11,982 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:23:12,263 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:23:12,264 INFO L272 AbstractInterpreter]: Visited 103 different actions 296 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 06:23:12,310 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:23:12,516 INFO L232 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 78.06% of their original sizes. [2018-09-19 06:23:12,517 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:23:13,042 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:23:13,043 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:23:13,043 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:23:13,043 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:23:13,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:23:13,045 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:23:13,045 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:23:13,045 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 10 states. [2018-09-19 06:23:20,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:23:20,502 INFO L93 Difference]: Finished difference Result 1490 states and 2443 transitions. [2018-09-19 06:23:20,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:23:20,504 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 139 [2018-09-19 06:23:20,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:23:20,511 INFO L225 Difference]: With dead ends: 1490 [2018-09-19 06:23:20,511 INFO L226 Difference]: Without dead ends: 1062 [2018-09-19 06:23:20,515 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 06:23:20,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2018-09-19 06:23:20,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1057. [2018-09-19 06:23:20,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2018-09-19 06:23:20,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1402 transitions. [2018-09-19 06:23:20,559 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1402 transitions. Word has length 139 [2018-09-19 06:23:20,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:23:20,561 INFO L480 AbstractCegarLoop]: Abstraction has 1057 states and 1402 transitions. [2018-09-19 06:23:20,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:23:20,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1402 transitions. [2018-09-19 06:23:20,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-09-19 06:23:20,571 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:23:20,572 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:23:20,572 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:23:20,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1491337604, now seen corresponding path program 1 times [2018-09-19 06:23:20,572 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:23:20,573 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 319 with the following transitions: [2018-09-19 06:23:20,574 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:23:20,584 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:23:20,584 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:23:20,779 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:23:20,912 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:23:20,912 INFO L272 AbstractInterpreter]: Visited 282 different actions 558 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 06:23:20,941 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:23:21,242 INFO L232 lantSequenceWeakener]: Weakened 315 states. On average, predicates are now at 77.61% of their original sizes. [2018-09-19 06:23:21,243 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:23:21,736 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:23:21,737 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:23:21,737 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:23:21,737 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:23:21,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:23:21,739 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:23:21,739 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:23:21,740 INFO L87 Difference]: Start difference. First operand 1057 states and 1402 transitions. Second operand 10 states. [2018-09-19 06:23:33,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:23:33,439 INFO L93 Difference]: Finished difference Result 1799 states and 2766 transitions. [2018-09-19 06:23:33,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:23:33,447 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 318 [2018-09-19 06:23:33,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:23:33,456 INFO L225 Difference]: With dead ends: 1799 [2018-09-19 06:23:33,456 INFO L226 Difference]: Without dead ends: 1371 [2018-09-19 06:23:33,459 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 324 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 06:23:33,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2018-09-19 06:23:33,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1368. [2018-09-19 06:23:33,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1368 states. [2018-09-19 06:23:33,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1728 transitions. [2018-09-19 06:23:33,497 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1728 transitions. Word has length 318 [2018-09-19 06:23:33,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:23:33,498 INFO L480 AbstractCegarLoop]: Abstraction has 1368 states and 1728 transitions. [2018-09-19 06:23:33,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:23:33,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1728 transitions. [2018-09-19 06:23:33,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2018-09-19 06:23:33,507 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:23:33,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:23:33,508 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:23:33,508 INFO L82 PathProgramCache]: Analyzing trace with hash 939396788, now seen corresponding path program 1 times [2018-09-19 06:23:33,508 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:23:33,509 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 331 with the following transitions: [2018-09-19 06:23:33,510 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:23:33,519 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:23:33,519 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:23:33,695 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:23:34,029 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:23:34,029 INFO L272 AbstractInterpreter]: Visited 294 different actions 869 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 06:23:34,035 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:23:34,318 INFO L232 lantSequenceWeakener]: Weakened 327 states. On average, predicates are now at 77.6% of their original sizes. [2018-09-19 06:23:34,318 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:23:34,849 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:23:34,849 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:23:34,850 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:23:34,850 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:23:34,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:23:34,851 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:23:34,851 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:23:34,851 INFO L87 Difference]: Start difference. First operand 1368 states and 1728 transitions. Second operand 10 states. [2018-09-19 06:23:40,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:23:40,778 INFO L93 Difference]: Finished difference Result 2110 states and 3092 transitions. [2018-09-19 06:23:40,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:23:40,783 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 330 [2018-09-19 06:23:40,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:23:40,793 INFO L225 Difference]: With dead ends: 2110 [2018-09-19 06:23:40,793 INFO L226 Difference]: Without dead ends: 1682 [2018-09-19 06:23:40,796 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 336 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 06:23:40,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2018-09-19 06:23:40,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1678. [2018-09-19 06:23:40,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1678 states. [2018-09-19 06:23:40,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 2057 transitions. [2018-09-19 06:23:40,840 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 2057 transitions. Word has length 330 [2018-09-19 06:23:40,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:23:40,841 INFO L480 AbstractCegarLoop]: Abstraction has 1678 states and 2057 transitions. [2018-09-19 06:23:40,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:23:40,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 2057 transitions. [2018-09-19 06:23:40,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-09-19 06:23:40,849 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:23:40,849 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 06:23:40,850 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:23:40,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1750250360, now seen corresponding path program 1 times [2018-09-19 06:23:40,850 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:23:40,851 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 401 with the following transitions: [2018-09-19 06:23:40,851 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:23:40,859 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:23:40,860 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:23:41,023 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:23:41,783 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:23:41,783 INFO L272 AbstractInterpreter]: Visited 295 different actions 1458 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 06:23:41,794 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:23:42,091 INFO L232 lantSequenceWeakener]: Weakened 397 states. On average, predicates are now at 77.57% of their original sizes. [2018-09-19 06:23:42,091 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:23:42,403 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:23:42,404 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:23:42,404 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:23:42,404 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:23:42,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:23:42,405 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:23:42,405 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:23:42,405 INFO L87 Difference]: Start difference. First operand 1678 states and 2057 transitions. Second operand 10 states. [2018-09-19 06:23:53,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:23:53,492 INFO L93 Difference]: Finished difference Result 2764 states and 3783 transitions. [2018-09-19 06:23:53,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:23:53,493 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 400 [2018-09-19 06:23:53,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:23:53,505 INFO L225 Difference]: With dead ends: 2764 [2018-09-19 06:23:53,505 INFO L226 Difference]: Without dead ends: 2336 [2018-09-19 06:23:53,508 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 406 GetRequests, 391 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 06:23:53,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2018-09-19 06:23:53,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2330. [2018-09-19 06:23:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2330 states. [2018-09-19 06:23:53,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 2771 transitions. [2018-09-19 06:23:53,566 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 2771 transitions. Word has length 400 [2018-09-19 06:23:53,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:23:53,567 INFO L480 AbstractCegarLoop]: Abstraction has 2330 states and 2771 transitions. [2018-09-19 06:23:53,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:23:53,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 2771 transitions. [2018-09-19 06:23:53,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2018-09-19 06:23:53,577 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:23:53,578 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 06:23:53,578 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:23:53,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1829162625, now seen corresponding path program 1 times [2018-09-19 06:23:53,579 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:23:53,579 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 409 with the following transitions: [2018-09-19 06:23:53,580 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [605], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:23:53,585 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:23:53,585 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:23:53,862 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:23:54,442 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:23:54,442 INFO L272 AbstractInterpreter]: Visited 295 different actions 1167 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 06:23:54,480 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:23:54,812 INFO L232 lantSequenceWeakener]: Weakened 405 states. On average, predicates are now at 77.56% of their original sizes. [2018-09-19 06:23:54,812 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:23:54,948 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:23:54,948 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:23:54,949 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:23:54,949 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:23:54,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:23:54,949 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:23:54,950 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:23:54,950 INFO L87 Difference]: Start difference. First operand 2330 states and 2771 transitions. Second operand 10 states. [2018-09-19 06:24:03,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:24:03,282 INFO L93 Difference]: Finished difference Result 3099 states and 4164 transitions. [2018-09-19 06:24:03,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:24:03,287 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 408 [2018-09-19 06:24:03,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:24:03,306 INFO L225 Difference]: With dead ends: 3099 [2018-09-19 06:24:03,307 INFO L226 Difference]: Without dead ends: 2671 [2018-09-19 06:24:03,309 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 414 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 06:24:03,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2018-09-19 06:24:03,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2665. [2018-09-19 06:24:03,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2665 states. [2018-09-19 06:24:03,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3152 transitions. [2018-09-19 06:24:03,377 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3152 transitions. Word has length 408 [2018-09-19 06:24:03,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:24:03,379 INFO L480 AbstractCegarLoop]: Abstraction has 2665 states and 3152 transitions. [2018-09-19 06:24:03,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:24:03,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3152 transitions. [2018-09-19 06:24:03,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-09-19 06:24:03,384 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:24:03,385 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 06:24:03,385 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:24:03,385 INFO L82 PathProgramCache]: Analyzing trace with hash 2065101670, now seen corresponding path program 1 times [2018-09-19 06:24:03,386 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:24:03,386 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 415 with the following transitions: [2018-09-19 06:24:03,386 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:24:03,392 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:24:03,392 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:24:03,425 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:24:03,859 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:24:03,859 INFO L272 AbstractInterpreter]: Visited 283 different actions 1123 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 06:24:03,888 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:24:04,126 INFO L232 lantSequenceWeakener]: Weakened 411 states. On average, predicates are now at 77.56% of their original sizes. [2018-09-19 06:24:04,127 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:24:04,218 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:24:04,219 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:24:04,219 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:24:04,219 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:24:04,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:24:04,220 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:24:04,220 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:24:04,220 INFO L87 Difference]: Start difference. First operand 2665 states and 3152 transitions. Second operand 10 states. [2018-09-19 06:24:11,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:24:11,563 INFO L93 Difference]: Finished difference Result 3423 states and 4534 transitions. [2018-09-19 06:24:11,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:24:11,567 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 414 [2018-09-19 06:24:11,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:24:11,585 INFO L225 Difference]: With dead ends: 3423 [2018-09-19 06:24:11,585 INFO L226 Difference]: Without dead ends: 2995 [2018-09-19 06:24:11,588 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 420 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 06:24:11,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2018-09-19 06:24:11,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2990. [2018-09-19 06:24:11,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2990 states. [2018-09-19 06:24:11,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 3506 transitions. [2018-09-19 06:24:11,664 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 3506 transitions. Word has length 414 [2018-09-19 06:24:11,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:24:11,669 INFO L480 AbstractCegarLoop]: Abstraction has 2990 states and 3506 transitions. [2018-09-19 06:24:11,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:24:11,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 3506 transitions. [2018-09-19 06:24:11,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2018-09-19 06:24:11,675 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:24:11,676 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 06:24:11,676 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:24:11,676 INFO L82 PathProgramCache]: Analyzing trace with hash -890309474, now seen corresponding path program 1 times [2018-09-19 06:24:11,677 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:24:11,677 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 427 with the following transitions: [2018-09-19 06:24:11,678 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:24:11,684 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:24:11,684 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:24:11,726 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:24:12,487 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:24:12,487 INFO L272 AbstractInterpreter]: Visited 295 different actions 1461 times. Merged at 7 different actions 30 times. Never widened. Found 6 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 06:24:12,527 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:24:12,809 INFO L232 lantSequenceWeakener]: Weakened 423 states. On average, predicates are now at 77.55% of their original sizes. [2018-09-19 06:24:12,809 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:24:12,925 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:24:12,925 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:24:12,925 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:24:12,925 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:24:12,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:24:12,926 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:24:12,926 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:24:12,927 INFO L87 Difference]: Start difference. First operand 2990 states and 3506 transitions. Second operand 10 states. [2018-09-19 06:24:18,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:24:18,309 INFO L93 Difference]: Finished difference Result 3768 states and 4910 transitions. [2018-09-19 06:24:18,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:24:18,311 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 426 [2018-09-19 06:24:18,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:24:18,325 INFO L225 Difference]: With dead ends: 3768 [2018-09-19 06:24:18,325 INFO L226 Difference]: Without dead ends: 3340 [2018-09-19 06:24:18,328 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 432 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 06:24:18,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2018-09-19 06:24:18,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 3327. [2018-09-19 06:24:18,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3327 states. [2018-09-19 06:24:18,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 3891 transitions. [2018-09-19 06:24:18,407 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 3891 transitions. Word has length 426 [2018-09-19 06:24:18,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:24:18,408 INFO L480 AbstractCegarLoop]: Abstraction has 3327 states and 3891 transitions. [2018-09-19 06:24:18,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:24:18,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 3891 transitions. [2018-09-19 06:24:18,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2018-09-19 06:24:18,415 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:24:18,415 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:24:18,415 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:24:18,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1926329105, now seen corresponding path program 1 times [2018-09-19 06:24:18,416 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:24:18,416 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 443 with the following transitions: [2018-09-19 06:24:18,417 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:24:18,422 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:24:18,422 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:24:18,558 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:24:20,482 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:24:20,483 INFO L272 AbstractInterpreter]: Visited 295 different actions 1750 times. Merged at 7 different actions 35 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 06:24:20,490 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:24:21,204 INFO L232 lantSequenceWeakener]: Weakened 439 states. On average, predicates are now at 77.54% of their original sizes. [2018-09-19 06:24:21,205 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:24:21,404 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:24:21,405 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:24:21,405 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:24:21,405 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:24:21,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:24:21,406 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:24:21,406 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:24:21,406 INFO L87 Difference]: Start difference. First operand 3327 states and 3891 transitions. Second operand 10 states. [2018-09-19 06:24:30,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:24:30,494 INFO L93 Difference]: Finished difference Result 4111 states and 5313 transitions. [2018-09-19 06:24:30,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 06:24:30,494 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 442 [2018-09-19 06:24:30,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:24:30,508 INFO L225 Difference]: With dead ends: 4111 [2018-09-19 06:24:30,508 INFO L226 Difference]: Without dead ends: 3683 [2018-09-19 06:24:30,512 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 448 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 06:24:30,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3683 states. [2018-09-19 06:24:30,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3683 to 3665. [2018-09-19 06:24:30,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3665 states. [2018-09-19 06:24:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3665 states to 3665 states and 4355 transitions. [2018-09-19 06:24:30,586 INFO L78 Accepts]: Start accepts. Automaton has 3665 states and 4355 transitions. Word has length 442 [2018-09-19 06:24:30,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:24:30,587 INFO L480 AbstractCegarLoop]: Abstraction has 3665 states and 4355 transitions. [2018-09-19 06:24:30,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:24:30,588 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 4355 transitions. [2018-09-19 06:24:30,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2018-09-19 06:24:30,594 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:24:30,595 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 06:24:30,595 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:24:30,595 INFO L82 PathProgramCache]: Analyzing trace with hash 267927469, now seen corresponding path program 1 times [2018-09-19 06:24:30,595 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:24:30,596 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 482 with the following transitions: [2018-09-19 06:24:30,596 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1036], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:24:30,600 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:24:30,601 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:24:30,733 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:24:31,039 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:24:31,039 INFO L272 AbstractInterpreter]: Visited 283 different actions 1119 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 06:24:31,062 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:24:31,483 INFO L232 lantSequenceWeakener]: Weakened 478 states. On average, predicates are now at 77.52% of their original sizes. [2018-09-19 06:24:31,484 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:24:31,569 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:24:31,569 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:24:31,569 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:24:31,569 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:24:31,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:24:31,570 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:24:31,570 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:24:31,571 INFO L87 Difference]: Start difference. First operand 3665 states and 4355 transitions. Second operand 10 states. [2018-09-19 06:24:41,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:24:41,568 INFO L93 Difference]: Finished difference Result 4763 states and 6203 transitions. [2018-09-19 06:24:41,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:24:41,574 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 481 [2018-09-19 06:24:41,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:24:41,588 INFO L225 Difference]: With dead ends: 4763 [2018-09-19 06:24:41,588 INFO L226 Difference]: Without dead ends: 3997 [2018-09-19 06:24:41,592 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 487 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 06:24:41,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3997 states. [2018-09-19 06:24:41,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3997 to 3988. [2018-09-19 06:24:41,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3988 states. [2018-09-19 06:24:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3988 states to 3988 states and 4706 transitions. [2018-09-19 06:24:41,665 INFO L78 Accepts]: Start accepts. Automaton has 3988 states and 4706 transitions. Word has length 481 [2018-09-19 06:24:41,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:24:41,666 INFO L480 AbstractCegarLoop]: Abstraction has 3988 states and 4706 transitions. [2018-09-19 06:24:41,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:24:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3988 states and 4706 transitions. [2018-09-19 06:24:41,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2018-09-19 06:24:41,675 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:24:41,675 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 06:24:41,675 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:24:41,676 INFO L82 PathProgramCache]: Analyzing trace with hash -904133515, now seen corresponding path program 1 times [2018-09-19 06:24:41,676 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:24:41,676 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 494 with the following transitions: [2018-09-19 06:24:41,679 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1036], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:24:41,685 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:24:41,685 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:24:41,811 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:24:42,293 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:24:42,293 INFO L272 AbstractInterpreter]: Visited 295 different actions 1458 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 06:24:42,334 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:24:42,639 INFO L232 lantSequenceWeakener]: Weakened 490 states. On average, predicates are now at 77.51% of their original sizes. [2018-09-19 06:24:42,639 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:24:42,738 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:24:42,739 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:24:42,739 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:24:42,739 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:24:42,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:24:42,739 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:24:42,740 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:24:42,740 INFO L87 Difference]: Start difference. First operand 3988 states and 4706 transitions. Second operand 10 states. [2018-09-19 06:24:47,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:24:47,657 INFO L93 Difference]: Finished difference Result 5104 states and 6576 transitions. [2018-09-19 06:24:47,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:24:47,658 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 493 [2018-09-19 06:24:47,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:24:47,673 INFO L225 Difference]: With dead ends: 5104 [2018-09-19 06:24:47,673 INFO L226 Difference]: Without dead ends: 4338 [2018-09-19 06:24:47,677 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 499 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 06:24:47,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4338 states. [2018-09-19 06:24:47,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4338 to 4323. [2018-09-19 06:24:47,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4323 states. [2018-09-19 06:24:47,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 5090 transitions. [2018-09-19 06:24:47,752 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 5090 transitions. Word has length 493 [2018-09-19 06:24:47,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:24:47,753 INFO L480 AbstractCegarLoop]: Abstraction has 4323 states and 5090 transitions. [2018-09-19 06:24:47,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:24:47,753 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 5090 transitions. [2018-09-19 06:24:47,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2018-09-19 06:24:47,761 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:24:47,761 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:47,762 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:24:47,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1710384923, now seen corresponding path program 1 times [2018-09-19 06:24:47,762 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:24:47,762 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 513 with the following transitions: [2018-09-19 06:24:47,763 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:24:47,768 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:24:47,768 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:24:47,892 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:24:50,599 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:24:50,600 INFO L272 AbstractInterpreter]: Visited 296 different actions 2355 times. Merged at 8 different actions 64 times. Widened at 1 different actions 3 times. Found 15 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 06:24:50,605 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:24:51,122 INFO L232 lantSequenceWeakener]: Weakened 509 states. On average, predicates are now at 77.52% of their original sizes. [2018-09-19 06:24:51,122 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:24:51,230 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:24:51,231 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:24:51,231 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:24:51,231 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:24:51,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:24:51,232 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:24:51,232 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:24:51,232 INFO L87 Difference]: Start difference. First operand 4323 states and 5090 transitions. Second operand 10 states. [2018-09-19 06:25:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:25:01,093 INFO L93 Difference]: Finished difference Result 6815 states and 8507 transitions. [2018-09-19 06:25:01,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:25:01,094 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 512 [2018-09-19 06:25:01,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:25:01,118 INFO L225 Difference]: With dead ends: 6815 [2018-09-19 06:25:01,118 INFO L226 Difference]: Without dead ends: 6049 [2018-09-19 06:25:01,122 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 519 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 06:25:01,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6049 states. [2018-09-19 06:25:01,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6049 to 6002. [2018-09-19 06:25:01,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6002 states. [2018-09-19 06:25:01,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6002 states to 6002 states and 7115 transitions. [2018-09-19 06:25:01,215 INFO L78 Accepts]: Start accepts. Automaton has 6002 states and 7115 transitions. Word has length 512 [2018-09-19 06:25:01,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:25:01,216 INFO L480 AbstractCegarLoop]: Abstraction has 6002 states and 7115 transitions. [2018-09-19 06:25:01,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:25:01,216 INFO L276 IsEmpty]: Start isEmpty. Operand 6002 states and 7115 transitions. [2018-09-19 06:25:01,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2018-09-19 06:25:01,225 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:25:01,225 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:25:01,226 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:25:01,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1825120392, now seen corresponding path program 1 times [2018-09-19 06:25:01,226 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:25:01,226 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 514 with the following transitions: [2018-09-19 06:25:01,227 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [570], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:25:01,232 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:25:01,232 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:25:01,357 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:25:02,706 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:25:02,706 INFO L272 AbstractInterpreter]: Visited 296 different actions 1469 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 06:25:02,714 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:25:03,227 INFO L232 lantSequenceWeakener]: Weakened 510 states. On average, predicates are now at 77.52% of their original sizes. [2018-09-19 06:25:03,227 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:25:03,316 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:25:03,317 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:25:03,317 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:25:03,317 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:25:03,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:25:03,318 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:25:03,318 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:25:03,318 INFO L87 Difference]: Start difference. First operand 6002 states and 7115 transitions. Second operand 10 states. [2018-09-19 06:25:13,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:25:13,326 INFO L93 Difference]: Finished difference Result 10559 states and 13211 transitions. [2018-09-19 06:25:13,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 06:25:13,326 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 513 [2018-09-19 06:25:13,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:25:13,350 INFO L225 Difference]: With dead ends: 10559 [2018-09-19 06:25:13,351 INFO L226 Difference]: Without dead ends: 9428 [2018-09-19 06:25:13,357 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 520 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 06:25:13,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9428 states. [2018-09-19 06:25:13,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9428 to 9359. [2018-09-19 06:25:13,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9359 states. [2018-09-19 06:25:13,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9359 states to 9359 states and 11238 transitions. [2018-09-19 06:25:13,506 INFO L78 Accepts]: Start accepts. Automaton has 9359 states and 11238 transitions. Word has length 513 [2018-09-19 06:25:13,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:25:13,506 INFO L480 AbstractCegarLoop]: Abstraction has 9359 states and 11238 transitions. [2018-09-19 06:25:13,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:25:13,507 INFO L276 IsEmpty]: Start isEmpty. Operand 9359 states and 11238 transitions. [2018-09-19 06:25:13,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2018-09-19 06:25:13,517 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:25:13,517 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:25:13,517 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:25:13,518 INFO L82 PathProgramCache]: Analyzing trace with hash -754234736, now seen corresponding path program 1 times [2018-09-19 06:25:13,518 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:25:13,518 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 518 with the following transitions: [2018-09-19 06:25:13,519 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [593], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:25:13,523 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:25:13,524 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:25:13,645 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:25:16,142 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:25:16,142 INFO L272 AbstractInterpreter]: Visited 296 different actions 2058 times. Merged at 8 different actions 52 times. Widened at 1 different actions 2 times. Found 12 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 06:25:16,152 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:25:16,634 INFO L232 lantSequenceWeakener]: Weakened 514 states. On average, predicates are now at 77.52% of their original sizes. [2018-09-19 06:25:16,634 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:25:16,728 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:25:16,728 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:25:16,729 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:25:16,729 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:25:16,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:25:16,730 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:25:16,730 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:25:16,730 INFO L87 Difference]: Start difference. First operand 9359 states and 11238 transitions. Second operand 10 states. [2018-09-19 06:25:26,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:25:26,460 INFO L93 Difference]: Finished difference Result 13103 states and 16927 transitions. [2018-09-19 06:25:26,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:25:26,460 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 517 [2018-09-19 06:25:26,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:25:26,488 INFO L225 Difference]: With dead ends: 13103 [2018-09-19 06:25:26,488 INFO L226 Difference]: Without dead ends: 10902 [2018-09-19 06:25:26,496 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 524 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 06:25:26,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10902 states. [2018-09-19 06:25:26,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10902 to 10799. [2018-09-19 06:25:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10799 states. [2018-09-19 06:25:26,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10799 states to 10799 states and 13322 transitions. [2018-09-19 06:25:26,663 INFO L78 Accepts]: Start accepts. Automaton has 10799 states and 13322 transitions. Word has length 517 [2018-09-19 06:25:26,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:25:26,664 INFO L480 AbstractCegarLoop]: Abstraction has 10799 states and 13322 transitions. [2018-09-19 06:25:26,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:25:26,664 INFO L276 IsEmpty]: Start isEmpty. Operand 10799 states and 13322 transitions. [2018-09-19 06:25:26,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2018-09-19 06:25:26,675 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:25:26,676 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:25:26,676 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:25:26,676 INFO L82 PathProgramCache]: Analyzing trace with hash -651043876, now seen corresponding path program 1 times [2018-09-19 06:25:26,676 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:25:26,677 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 521 with the following transitions: [2018-09-19 06:25:26,677 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [605], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:25:26,682 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:25:26,682 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:25:26,791 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:25:28,676 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:25:28,676 INFO L272 AbstractInterpreter]: Visited 296 different actions 1766 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 11 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 06:25:28,682 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:25:29,318 INFO L232 lantSequenceWeakener]: Weakened 517 states. On average, predicates are now at 77.52% of their original sizes. [2018-09-19 06:25:29,318 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:25:29,538 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:25:29,538 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:25:29,538 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:25:29,538 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:25:29,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:25:29,539 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:25:29,539 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:25:29,539 INFO L87 Difference]: Start difference. First operand 10799 states and 13322 transitions. Second operand 10 states. [2018-09-19 06:25:36,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:25:36,914 INFO L93 Difference]: Finished difference Result 16040 states and 21468 transitions. [2018-09-19 06:25:36,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:25:36,914 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 520 [2018-09-19 06:25:36,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:25:36,953 INFO L225 Difference]: With dead ends: 16040 [2018-09-19 06:25:36,953 INFO L226 Difference]: Without dead ends: 12740 [2018-09-19 06:25:36,963 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 527 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 06:25:36,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12740 states. [2018-09-19 06:25:37,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12740 to 12634. [2018-09-19 06:25:37,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12634 states. [2018-09-19 06:25:37,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12634 states to 12634 states and 16164 transitions. [2018-09-19 06:25:37,156 INFO L78 Accepts]: Start accepts. Automaton has 12634 states and 16164 transitions. Word has length 520 [2018-09-19 06:25:37,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:25:37,157 INFO L480 AbstractCegarLoop]: Abstraction has 12634 states and 16164 transitions. [2018-09-19 06:25:37,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:25:37,157 INFO L276 IsEmpty]: Start isEmpty. Operand 12634 states and 16164 transitions. [2018-09-19 06:25:37,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2018-09-19 06:25:37,168 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:25:37,169 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:25:37,169 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:25:37,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1377426784, now seen corresponding path program 1 times [2018-09-19 06:25:37,169 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:25:37,170 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 523 with the following transitions: [2018-09-19 06:25:37,170 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:25:37,175 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:25:37,176 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:25:37,297 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:25:38,739 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:25:38,740 INFO L272 AbstractInterpreter]: Visited 296 different actions 1764 times. Merged at 8 different actions 43 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 06:25:38,777 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:25:39,191 INFO L232 lantSequenceWeakener]: Weakened 519 states. On average, predicates are now at 77.52% of their original sizes. [2018-09-19 06:25:39,192 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:25:39,277 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:25:39,278 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:25:39,278 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:25:39,278 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:25:39,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:25:39,278 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:25:39,279 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:25:39,279 INFO L87 Difference]: Start difference. First operand 12634 states and 16164 transitions. Second operand 10 states. [2018-09-19 06:25:47,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:25:47,541 INFO L93 Difference]: Finished difference Result 18563 states and 25433 transitions. [2018-09-19 06:25:47,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:25:47,542 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 522 [2018-09-19 06:25:47,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:25:47,569 INFO L225 Difference]: With dead ends: 18563 [2018-09-19 06:25:47,569 INFO L226 Difference]: Without dead ends: 13428 [2018-09-19 06:25:47,582 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 529 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 06:25:47,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13428 states. [2018-09-19 06:25:47,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13428 to 13327. [2018-09-19 06:25:47,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13327 states. [2018-09-19 06:25:47,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13327 states to 13327 states and 17227 transitions. [2018-09-19 06:25:47,771 INFO L78 Accepts]: Start accepts. Automaton has 13327 states and 17227 transitions. Word has length 522 [2018-09-19 06:25:47,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:25:47,771 INFO L480 AbstractCegarLoop]: Abstraction has 13327 states and 17227 transitions. [2018-09-19 06:25:47,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:25:47,772 INFO L276 IsEmpty]: Start isEmpty. Operand 13327 states and 17227 transitions. [2018-09-19 06:25:47,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2018-09-19 06:25:47,783 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:25:47,784 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:25:47,784 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:25:47,784 INFO L82 PathProgramCache]: Analyzing trace with hash 896360096, now seen corresponding path program 1 times [2018-09-19 06:25:47,784 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:25:47,785 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 526 with the following transitions: [2018-09-19 06:25:47,785 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [625], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:25:47,790 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:25:47,790 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:25:47,908 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:25:50,334 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:25:50,334 INFO L272 AbstractInterpreter]: Visited 296 different actions 1469 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 06:25:50,341 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:25:51,371 INFO L232 lantSequenceWeakener]: Weakened 522 states. On average, predicates are now at 77.51% of their original sizes. [2018-09-19 06:25:51,373 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:25:51,454 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:25:51,454 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:25:51,454 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:25:51,454 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:25:51,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:25:51,455 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:25:51,455 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:25:51,455 INFO L87 Difference]: Start difference. First operand 13327 states and 17227 transitions. Second operand 10 states. [2018-09-19 06:26:02,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:26:02,701 INFO L93 Difference]: Finished difference Result 20769 states and 28847 transitions. [2018-09-19 06:26:02,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:26:02,701 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 525 [2018-09-19 06:26:02,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:26:02,728 INFO L225 Difference]: With dead ends: 20769 [2018-09-19 06:26:02,728 INFO L226 Difference]: Without dead ends: 14941 [2018-09-19 06:26:02,741 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 532 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 06:26:02,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14941 states. [2018-09-19 06:26:02,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14941 to 14801. [2018-09-19 06:26:02,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14801 states. [2018-09-19 06:26:02,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14801 states to 14801 states and 19580 transitions. [2018-09-19 06:26:02,950 INFO L78 Accepts]: Start accepts. Automaton has 14801 states and 19580 transitions. Word has length 525 [2018-09-19 06:26:02,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:26:02,951 INFO L480 AbstractCegarLoop]: Abstraction has 14801 states and 19580 transitions. [2018-09-19 06:26:02,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:26:02,951 INFO L276 IsEmpty]: Start isEmpty. Operand 14801 states and 19580 transitions. [2018-09-19 06:26:02,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2018-09-19 06:26:02,962 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:26:02,962 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:26:02,962 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:26:02,963 INFO L82 PathProgramCache]: Analyzing trace with hash -765630040, now seen corresponding path program 1 times [2018-09-19 06:26:02,963 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:26:02,963 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 527 with the following transitions: [2018-09-19 06:26:02,964 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:26:02,968 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:26:02,969 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:26:03,088 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:26:04,309 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:26:04,310 INFO L272 AbstractInterpreter]: Visited 296 different actions 1469 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 06:26:04,314 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:26:04,745 INFO L232 lantSequenceWeakener]: Weakened 523 states. On average, predicates are now at 77.51% of their original sizes. [2018-09-19 06:26:04,745 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:26:04,845 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:26:04,845 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:26:04,845 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:26:04,845 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:26:04,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:26:04,846 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:26:04,846 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:26:04,846 INFO L87 Difference]: Start difference. First operand 14801 states and 19580 transitions. Second operand 10 states. [2018-09-19 06:26:15,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:26:15,772 INFO L93 Difference]: Finished difference Result 24096 states and 34230 transitions. [2018-09-19 06:26:15,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:26:15,774 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 526 [2018-09-19 06:26:15,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:26:15,812 INFO L225 Difference]: With dead ends: 24096 [2018-09-19 06:26:15,812 INFO L226 Difference]: Without dead ends: 16794 [2018-09-19 06:26:15,830 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 533 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 06:26:15,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16794 states. [2018-09-19 06:26:16,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16794 to 16623. [2018-09-19 06:26:16,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16623 states. [2018-09-19 06:26:16,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16623 states to 16623 states and 22601 transitions. [2018-09-19 06:26:16,080 INFO L78 Accepts]: Start accepts. Automaton has 16623 states and 22601 transitions. Word has length 526 [2018-09-19 06:26:16,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:26:16,081 INFO L480 AbstractCegarLoop]: Abstraction has 16623 states and 22601 transitions. [2018-09-19 06:26:16,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:26:16,081 INFO L276 IsEmpty]: Start isEmpty. Operand 16623 states and 22601 transitions. [2018-09-19 06:26:16,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-09-19 06:26:16,093 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:26:16,094 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:26:16,094 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:26:16,094 INFO L82 PathProgramCache]: Analyzing trace with hash 133880595, now seen corresponding path program 1 times [2018-09-19 06:26:16,095 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:26:16,095 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 542 with the following transitions: [2018-09-19 06:26:16,095 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1311], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:26:16,099 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:26:16,099 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:26:16,217 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:26:16,487 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:26:16,487 INFO L272 AbstractInterpreter]: Visited 283 different actions 1119 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 06:26:16,488 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:26:16,742 INFO L232 lantSequenceWeakener]: Weakened 538 states. On average, predicates are now at 77.49% of their original sizes. [2018-09-19 06:26:16,743 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:26:16,830 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:26:16,830 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:26:16,830 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:26:16,830 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:26:16,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:26:16,831 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:26:16,831 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:26:16,831 INFO L87 Difference]: Start difference. First operand 16623 states and 22601 transitions. Second operand 10 states. [2018-09-19 06:26:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:26:26,355 INFO L93 Difference]: Finished difference Result 27042 states and 38632 transitions. [2018-09-19 06:26:26,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:26:26,359 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 541 [2018-09-19 06:26:26,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:26:26,400 INFO L225 Difference]: With dead ends: 27042 [2018-09-19 06:26:26,401 INFO L226 Difference]: Without dead ends: 17918 [2018-09-19 06:26:26,420 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 547 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 06:26:26,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17918 states. [2018-09-19 06:26:26,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17918 to 17909. [2018-09-19 06:26:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17909 states. [2018-09-19 06:26:26,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17909 states to 17909 states and 23997 transitions. [2018-09-19 06:26:26,676 INFO L78 Accepts]: Start accepts. Automaton has 17909 states and 23997 transitions. Word has length 541 [2018-09-19 06:26:26,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:26:26,677 INFO L480 AbstractCegarLoop]: Abstraction has 17909 states and 23997 transitions. [2018-09-19 06:26:26,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:26:26,677 INFO L276 IsEmpty]: Start isEmpty. Operand 17909 states and 23997 transitions. [2018-09-19 06:26:26,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2018-09-19 06:26:26,693 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:26:26,694 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:26:26,694 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:26:26,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1213273030, now seen corresponding path program 1 times [2018-09-19 06:26:26,694 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:26:26,695 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 545 with the following transitions: [2018-09-19 06:26:26,695 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [722], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:26:26,699 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:26:26,699 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:26:26,794 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:26:28,761 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:26:28,761 INFO L272 AbstractInterpreter]: Visited 296 different actions 2059 times. Merged at 8 different actions 53 times. Widened at 1 different actions 2 times. Found 12 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 06:26:28,767 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:26:29,264 INFO L232 lantSequenceWeakener]: Weakened 541 states. On average, predicates are now at 77.51% of their original sizes. [2018-09-19 06:26:29,264 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:26:29,353 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:26:29,353 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:26:29,353 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:26:29,353 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:26:29,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:26:29,354 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:26:29,354 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:26:29,354 INFO L87 Difference]: Start difference. First operand 17909 states and 23997 transitions. Second operand 10 states. [2018-09-19 06:26:38,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:26:38,567 INFO L93 Difference]: Finished difference Result 33332 states and 47836 transitions. [2018-09-19 06:26:38,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:26:38,568 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 544 [2018-09-19 06:26:38,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:26:38,614 INFO L225 Difference]: With dead ends: 33332 [2018-09-19 06:26:38,615 INFO L226 Difference]: Without dead ends: 21522 [2018-09-19 06:26:38,636 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 551 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 06:26:38,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21522 states. [2018-09-19 06:26:39,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21522 to 21340. [2018-09-19 06:26:39,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21340 states. [2018-09-19 06:26:39,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21340 states to 21340 states and 29043 transitions. [2018-09-19 06:26:39,159 INFO L78 Accepts]: Start accepts. Automaton has 21340 states and 29043 transitions. Word has length 544 [2018-09-19 06:26:39,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:26:39,159 INFO L480 AbstractCegarLoop]: Abstraction has 21340 states and 29043 transitions. [2018-09-19 06:26:39,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:26:39,159 INFO L276 IsEmpty]: Start isEmpty. Operand 21340 states and 29043 transitions. [2018-09-19 06:26:39,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2018-09-19 06:26:39,171 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:26:39,172 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 06:26:39,172 INFO L423 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:26:39,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1852179419, now seen corresponding path program 1 times [2018-09-19 06:26:39,172 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:26:39,173 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 554 with the following transitions: [2018-09-19 06:26:39,173 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1311], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:26:39,177 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:26:39,177 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:26:39,265 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:26:39,687 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:26:39,688 INFO L272 AbstractInterpreter]: Visited 295 different actions 1458 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 06:26:39,697 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:26:39,995 INFO L232 lantSequenceWeakener]: Weakened 550 states. On average, predicates are now at 77.48% of their original sizes. [2018-09-19 06:26:39,996 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:26:40,081 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:26:40,081 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:26:40,081 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:26:40,081 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:26:40,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:26:40,082 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:26:40,082 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:26:40,082 INFO L87 Difference]: Start difference. First operand 21340 states and 29043 transitions. Second operand 10 states. [2018-09-19 06:26:48,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:26:48,273 INFO L93 Difference]: Finished difference Result 35263 states and 50281 transitions. [2018-09-19 06:26:48,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:26:48,283 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 553 [2018-09-19 06:26:48,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:26:48,328 INFO L225 Difference]: With dead ends: 35263 [2018-09-19 06:26:48,329 INFO L226 Difference]: Without dead ends: 22700 [2018-09-19 06:26:48,349 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 559 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 06:26:48,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22700 states. [2018-09-19 06:26:48,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22700 to 22680. [2018-09-19 06:26:48,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22680 states. [2018-09-19 06:26:48,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22680 states to 22680 states and 30582 transitions. [2018-09-19 06:26:48,671 INFO L78 Accepts]: Start accepts. Automaton has 22680 states and 30582 transitions. Word has length 553 [2018-09-19 06:26:48,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:26:48,671 INFO L480 AbstractCegarLoop]: Abstraction has 22680 states and 30582 transitions. [2018-09-19 06:26:48,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:26:48,671 INFO L276 IsEmpty]: Start isEmpty. Operand 22680 states and 30582 transitions. [2018-09-19 06:26:48,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2018-09-19 06:26:48,681 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:26:48,681 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:26:48,682 INFO L423 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:26:48,682 INFO L82 PathProgramCache]: Analyzing trace with hash -818297821, now seen corresponding path program 1 times [2018-09-19 06:26:48,682 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:26:48,682 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 556 with the following transitions: [2018-09-19 06:26:48,682 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [766], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 06:26:48,686 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:26:48,686 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:26:48,778 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:26:50,244 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:26:50,244 INFO L272 AbstractInterpreter]: Visited 296 different actions 1764 times. Merged at 8 different actions 43 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 06:26:50,253 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:26:50,905 INFO L232 lantSequenceWeakener]: Weakened 552 states. On average, predicates are now at 77.5% of their original sizes. [2018-09-19 06:26:50,905 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:26:51,080 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:26:51,081 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:26:51,081 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:26:51,081 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:26:51,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:26:51,081 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:26:51,082 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:26:51,082 INFO L87 Difference]: Start difference. First operand 22680 states and 30582 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 06:26:57,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:26:57,979 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 06:26:57,986 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 06:26:57,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 06:26:57 BoogieIcfgContainer [2018-09-19 06:26:57,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 06:26:57,987 INFO L168 Benchmark]: Toolchain (without parser) took 244132.47 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.0 GB). Peak memory consumption was 454.6 MB. Max. memory is 7.1 GB. [2018-09-19 06:26:57,989 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 06:26:57,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1174.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-19 06:26:57,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 245.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 06:26:57,990 INFO L168 Benchmark]: Boogie Preprocessor took 634.98 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 897.1 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-19 06:26:57,991 INFO L168 Benchmark]: RCFGBuilder took 6763.83 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 289.9 MB). Peak memory consumption was 289.9 MB. Max. memory is 7.1 GB. [2018-09-19 06:26:57,992 INFO L168 Benchmark]: TraceAbstraction took 235306.55 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 155.8 MB. Max. memory is 7.1 GB. [2018-09-19 06:26:57,996 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1174.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 245.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 634.98 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 897.1 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6763.83 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 289.9 MB). Peak memory consumption was 289.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235306.55 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 155.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 115). Cancelled while BasicCegarLoop was constructing difference of abstraction (22680states) and FLOYD_HOARE automaton (currently 17 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (36585 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 235.2s OverallTime, 22 OverallIterations, 4 TraceHistogramMax, 191.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8383 SDtfs, 27074 SDslu, 11963 SDs, 0 SdLazy, 90475 SolverSat, 6213 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 167.4s Time, PredicateUnifierStatistics: 44 DeclaredPredicates, 9856 GetRequests, 9528 SyntacticMatches, 0 SemanticMatches, 328 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22680occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 27.1s AbstIntTime, 22 AbstIntIterations, 22 AbstIntStrong, 0.9982160601985752 AbsIntWeakeningRatio, 0.06144329896907216 AbsIntAvgWeakeningVarsNumRemoved, 21.265051546391753 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 21 MinimizatonAttempts, 1034 StatesRemovedByMinimization, 21 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/Problem15_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_06-26-58-009.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_06-26-58-009.csv Completed graceful shutdown