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_label55_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 06:24:22,435 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 06:24:22,437 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 06:24:22,449 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 06:24:22,449 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 06:24:22,450 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 06:24:22,451 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 06:24:22,453 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 06:24:22,455 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 06:24:22,455 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 06:24:22,456 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 06:24:22,457 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 06:24:22,458 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 06:24:22,459 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 06:24:22,460 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 06:24:22,460 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 06:24:22,461 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 06:24:22,463 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 06:24:22,465 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 06:24:22,467 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 06:24:22,468 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 06:24:22,469 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 06:24:22,471 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 06:24:22,472 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 06:24:22,472 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 06:24:22,473 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 06:24:22,474 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 06:24:22,475 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 06:24:22,475 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 06:24:22,477 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 06:24:22,477 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 06:24:22,478 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 06:24:22,478 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 06:24:22,478 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 06:24:22,479 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 06:24:22,480 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 06:24:22,480 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 06:24:22,512 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 06:24:22,512 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 06:24:22,513 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 06:24:22,513 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 06:24:22,513 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 06:24:22,513 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 06:24:22,514 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 06:24:22,514 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 06:24:22,514 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 06:24:22,514 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-19 06:24:22,514 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 06:24:22,515 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 06:24:22,515 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 06:24:22,518 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 06:24:22,518 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 06:24:22,519 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 06:24:22,519 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 06:24:22,519 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 06:24:22,519 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 06:24:22,519 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 06:24:22,519 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 06:24:22,520 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 06:24:22,520 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 06:24:22,520 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 06:24:22,520 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 06:24:22,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 06:24:22,522 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 06:24:22,522 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 06:24:22,523 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 06:24:22,523 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 06:24:22,523 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 06:24:22,523 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 06:24:22,523 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 06:24:22,524 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 06:24:22,524 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 06:24:22,591 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 06:24:22,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 06:24:22,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 06:24:22,613 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 06:24:22,613 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 06:24:22,614 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label55_true-unreach-call.c [2018-09-19 06:24:22,964 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80881fa0/47aa85f4bedb4c41a9e7f615118f34e4/FLAGbd66a84e1 [2018-09-19 06:24:23,301 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 06:24:23,303 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label55_true-unreach-call.c [2018-09-19 06:24:23,322 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80881fa0/47aa85f4bedb4c41a9e7f615118f34e4/FLAGbd66a84e1 [2018-09-19 06:24:23,342 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80881fa0/47aa85f4bedb4c41a9e7f615118f34e4 [2018-09-19 06:24:23,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 06:24:23,357 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 06:24:23,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 06:24:23,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 06:24:23,364 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 06:24:23,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 06:24:23" (1/1) ... [2018-09-19 06:24:23,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6652310c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:23, skipping insertion in model container [2018-09-19 06:24:23,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 06:24:23" (1/1) ... [2018-09-19 06:24:23,380 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 06:24:24,328 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 06:24:24,346 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 06:24:24,601 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 06:24:24,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:24 WrapperNode [2018-09-19 06:24:24,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 06:24:24,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 06:24:24,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 06:24:24,725 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 06:24:24,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:24" (1/1) ... [2018-09-19 06:24:24,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:24" (1/1) ... [2018-09-19 06:24:24,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 06:24:24,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 06:24:24,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 06:24:24,935 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 06:24:25,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:24" (1/1) ... [2018-09-19 06:24:25,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:24" (1/1) ... [2018-09-19 06:24:25,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:24" (1/1) ... [2018-09-19 06:24:25,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:24" (1/1) ... [2018-09-19 06:24:25,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:24" (1/1) ... [2018-09-19 06:24:25,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:24" (1/1) ... [2018-09-19 06:24:25,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:24" (1/1) ... [2018-09-19 06:24:25,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 06:24:25,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 06:24:25,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 06:24:25,556 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 06:24:25,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:24" (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 06:24:25,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 06:24:25,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 06:24:25,615 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 06:24:25,615 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 06:24:25,615 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 06:24:25,615 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 06:24:25,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 06:24:25,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 06:24:25,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 06:24:25,616 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 06:24:33,179 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 06:24:33,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 06:24:33 BoogieIcfgContainer [2018-09-19 06:24:33,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 06:24:33,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 06:24:33,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 06:24:33,184 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 06:24:33,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 06:24:23" (1/3) ... [2018-09-19 06:24:33,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d479be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 06:24:33, skipping insertion in model container [2018-09-19 06:24:33,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:24:24" (2/3) ... [2018-09-19 06:24:33,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d479be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 06:24:33, skipping insertion in model container [2018-09-19 06:24:33,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 06:24:33" (3/3) ... [2018-09-19 06:24:33,188 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label55_true-unreach-call.c [2018-09-19 06:24:33,195 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 06:24:33,203 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 06:24:33,254 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 06:24:33,255 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 06:24:33,255 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 06:24:33,255 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 06:24:33,255 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 06:24:33,255 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 06:24:33,255 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 06:24:33,256 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 06:24:33,256 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 06:24:33,296 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-19 06:24:33,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-19 06:24:33,307 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:24:33,308 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:24:33,309 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:24:33,315 INFO L82 PathProgramCache]: Analyzing trace with hash 999091244, now seen corresponding path program 1 times [2018-09-19 06:24:33,318 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:24:33,319 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 65 with the following transitions: [2018-09-19 06:24:33,322 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-19 06:24:33,368 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:24:33,368 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:24:33,596 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:24:33,599 INFO L272 AbstractInterpreter]: Visited 63 different actions 63 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 06:24:33,653 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:24:33,844 INFO L232 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 80.45% of their original sizes. [2018-09-19 06:24:33,845 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:24:34,108 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:24:34,112 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:24:34,113 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 06:24:34,113 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:24:34,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 06:24:34,127 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 06:24:34,128 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 06:24:34,131 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-19 06:24:43,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:24:43,205 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-19 06:24:43,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 06:24:43,209 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-09-19 06:24:43,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:24:43,233 INFO L225 Difference]: With dead ends: 1184 [2018-09-19 06:24:43,233 INFO L226 Difference]: Without dead ends: 744 [2018-09-19 06:24:43,241 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 06:24:43,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-19 06:24:43,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-19 06:24:43,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-19 06:24:43,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-19 06:24:43,339 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 64 [2018-09-19 06:24:43,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:24:43,340 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-19 06:24:43,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 06:24:43,340 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-19 06:24:43,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-09-19 06:24:43,349 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:24:43,350 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 06:24:43,350 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:24:43,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1748039701, now seen corresponding path program 1 times [2018-09-19 06:24:43,351 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:24:43,351 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 161 with the following transitions: [2018-09-19 06:24:43,352 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:24:43,359 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:24:43,359 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:24:43,474 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:24:43,648 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:24:43,648 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 06:24:43,688 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:24:43,930 INFO L232 lantSequenceWeakener]: Weakened 157 states. On average, predicates are now at 78.56% of their original sizes. [2018-09-19 06:24:43,930 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:24:44,261 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:24:44,262 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:24:44,262 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:24:44,262 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:24:44,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:24:44,264 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:24:44,264 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:24:44,264 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 10 states. [2018-09-19 06:24:52,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:24:52,935 INFO L93 Difference]: Finished difference Result 1490 states and 2443 transitions. [2018-09-19 06:24:52,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:24:52,935 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2018-09-19 06:24:52,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:24:52,942 INFO L225 Difference]: With dead ends: 1490 [2018-09-19 06:24:52,943 INFO L226 Difference]: Without dead ends: 1062 [2018-09-19 06:24:52,946 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 166 GetRequests, 151 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 06:24:52,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2018-09-19 06:24:52,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1057. [2018-09-19 06:24:52,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2018-09-19 06:24:52,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1402 transitions. [2018-09-19 06:24:52,997 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1402 transitions. Word has length 160 [2018-09-19 06:24:52,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:24:52,998 INFO L480 AbstractCegarLoop]: Abstraction has 1057 states and 1402 transitions. [2018-09-19 06:24:52,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:24:52,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1402 transitions. [2018-09-19 06:24:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2018-09-19 06:24:53,010 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:24:53,010 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 06:24:53,011 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:24:53,011 INFO L82 PathProgramCache]: Analyzing trace with hash -171562950, now seen corresponding path program 1 times [2018-09-19 06:24:53,011 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:24:53,012 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 340 with the following transitions: [2018-09-19 06:24:53,013 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:24:53,024 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:24:53,025 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:24:53,274 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:24:53,499 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:24:53,499 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 06:24:53,537 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:24:53,838 INFO L232 lantSequenceWeakener]: Weakened 336 states. On average, predicates are now at 77.88% of their original sizes. [2018-09-19 06:24:53,839 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:24:54,434 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:24:54,435 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:24:54,435 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:24:54,435 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:24:54,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:24:54,437 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:24:54,437 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:24:54,438 INFO L87 Difference]: Start difference. First operand 1057 states and 1402 transitions. Second operand 10 states. [2018-09-19 06:25:02,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:25:02,473 INFO L93 Difference]: Finished difference Result 1799 states and 2766 transitions. [2018-09-19 06:25:02,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:25:02,474 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 339 [2018-09-19 06:25:02,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:25:02,489 INFO L225 Difference]: With dead ends: 1799 [2018-09-19 06:25:02,490 INFO L226 Difference]: Without dead ends: 1371 [2018-09-19 06:25:02,493 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 345 GetRequests, 330 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 06:25:02,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2018-09-19 06:25:02,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1368. [2018-09-19 06:25:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1368 states. [2018-09-19 06:25:02,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1728 transitions. [2018-09-19 06:25:02,539 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1728 transitions. Word has length 339 [2018-09-19 06:25:02,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:25:02,540 INFO L480 AbstractCegarLoop]: Abstraction has 1368 states and 1728 transitions. [2018-09-19 06:25:02,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:25:02,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1728 transitions. [2018-09-19 06:25:02,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2018-09-19 06:25:02,549 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:25:02,550 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 06:25:02,550 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:25:02,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1402519938, now seen corresponding path program 1 times [2018-09-19 06:25:02,551 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:25:02,551 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 352 with the following transitions: [2018-09-19 06:25:02,553 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:25:02,570 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:25:02,570 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:25:02,735 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:25:03,025 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:25:03,026 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 06:25:03,066 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:25:03,442 INFO L232 lantSequenceWeakener]: Weakened 348 states. On average, predicates are now at 77.86% of their original sizes. [2018-09-19 06:25:03,443 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:25:03,716 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:25:03,716 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:25:03,716 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:25:03,716 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:25:03,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:25:03,718 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:25:03,718 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:25:03,718 INFO L87 Difference]: Start difference. First operand 1368 states and 1728 transitions. Second operand 10 states. [2018-09-19 06:25:11,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:25:11,818 INFO L93 Difference]: Finished difference Result 2110 states and 3092 transitions. [2018-09-19 06:25:11,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:25:11,820 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 351 [2018-09-19 06:25:11,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:25:11,828 INFO L225 Difference]: With dead ends: 2110 [2018-09-19 06:25:11,829 INFO L226 Difference]: Without dead ends: 1682 [2018-09-19 06:25:11,831 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 357 GetRequests, 342 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 06:25:11,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2018-09-19 06:25:11,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1678. [2018-09-19 06:25:11,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1678 states. [2018-09-19 06:25:11,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 2057 transitions. [2018-09-19 06:25:11,870 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 2057 transitions. Word has length 351 [2018-09-19 06:25:11,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:25:11,871 INFO L480 AbstractCegarLoop]: Abstraction has 1678 states and 2057 transitions. [2018-09-19 06:25:11,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:25:11,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 2057 transitions. [2018-09-19 06:25:11,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2018-09-19 06:25:11,881 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:25:11,881 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 06:25:11,882 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:25:11,882 INFO L82 PathProgramCache]: Analyzing trace with hash -2115160659, now seen corresponding path program 1 times [2018-09-19 06:25:11,882 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:25:11,882 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 422 with the following transitions: [2018-09-19 06:25:11,883 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:25:11,888 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:25:11,889 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:25:12,033 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:25:12,723 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:25:12,723 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 06:25:12,754 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:25:13,109 INFO L232 lantSequenceWeakener]: Weakened 418 states. On average, predicates are now at 77.78% of their original sizes. [2018-09-19 06:25:13,110 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:25:13,199 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:25:13,200 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:25:13,200 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:25:13,200 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:25:13,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:25:13,201 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:25:13,201 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:25:13,202 INFO L87 Difference]: Start difference. First operand 1678 states and 2057 transitions. Second operand 10 states. [2018-09-19 06:25:19,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:25:19,082 INFO L93 Difference]: Finished difference Result 2764 states and 3783 transitions. [2018-09-19 06:25:19,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:25:19,083 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 421 [2018-09-19 06:25:19,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:25:19,095 INFO L225 Difference]: With dead ends: 2764 [2018-09-19 06:25:19,095 INFO L226 Difference]: Without dead ends: 2336 [2018-09-19 06:25:19,098 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 427 GetRequests, 412 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 06:25:19,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2018-09-19 06:25:19,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2330. [2018-09-19 06:25:19,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2330 states. [2018-09-19 06:25:19,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 2771 transitions. [2018-09-19 06:25:19,155 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 2771 transitions. Word has length 421 [2018-09-19 06:25:19,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:25:19,156 INFO L480 AbstractCegarLoop]: Abstraction has 2330 states and 2771 transitions. [2018-09-19 06:25:19,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:25:19,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 2771 transitions. [2018-09-19 06:25:19,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2018-09-19 06:25:19,166 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:25:19,167 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 06:25:19,167 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:25:19,168 INFO L82 PathProgramCache]: Analyzing trace with hash -9125610, now seen corresponding path program 1 times [2018-09-19 06:25:19,168 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:25:19,168 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 430 with the following transitions: [2018-09-19 06:25:19,169 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:25:19,174 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:25:19,174 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:25:19,536 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:25:20,132 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:25:20,132 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 06:25:20,170 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:25:20,586 INFO L232 lantSequenceWeakener]: Weakened 426 states. On average, predicates are now at 77.77% of their original sizes. [2018-09-19 06:25:20,586 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:25:20,872 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:25:20,873 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:25:20,873 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:25:20,873 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:25:20,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:25:20,874 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:25:20,874 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:25:20,875 INFO L87 Difference]: Start difference. First operand 2330 states and 2771 transitions. Second operand 10 states. [2018-09-19 06:25:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:25:26,418 INFO L93 Difference]: Finished difference Result 3099 states and 4164 transitions. [2018-09-19 06:25:26,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:25:26,421 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 429 [2018-09-19 06:25:26,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:25:26,434 INFO L225 Difference]: With dead ends: 3099 [2018-09-19 06:25:26,434 INFO L226 Difference]: Without dead ends: 2671 [2018-09-19 06:25:26,437 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 435 GetRequests, 420 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 06:25:26,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2018-09-19 06:25:26,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2665. [2018-09-19 06:25:26,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2665 states. [2018-09-19 06:25:26,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3152 transitions. [2018-09-19 06:25:26,500 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3152 transitions. Word has length 429 [2018-09-19 06:25:26,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:25:26,501 INFO L480 AbstractCegarLoop]: Abstraction has 2665 states and 3152 transitions. [2018-09-19 06:25:26,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:25:26,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3152 transitions. [2018-09-19 06:25:26,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2018-09-19 06:25:26,511 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:25:26,511 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:25:26,512 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:25:26,512 INFO L82 PathProgramCache]: Analyzing trace with hash -813205071, now seen corresponding path program 1 times [2018-09-19 06:25:26,512 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:25:26,514 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 436 with the following transitions: [2018-09-19 06:25:26,514 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:25:26,519 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:25:26,519 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:25:26,551 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:25:27,107 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:25:27,108 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 06:25:27,130 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:25:27,400 INFO L232 lantSequenceWeakener]: Weakened 432 states. On average, predicates are now at 77.76% of their original sizes. [2018-09-19 06:25:27,401 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:25:27,571 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:25:27,571 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:25:27,571 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:25:27,571 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:25:27,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:25:27,572 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:25:27,572 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:25:27,573 INFO L87 Difference]: Start difference. First operand 2665 states and 3152 transitions. Second operand 10 states. [2018-09-19 06:25:36,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:25:36,541 INFO L93 Difference]: Finished difference Result 3423 states and 4534 transitions. [2018-09-19 06:25:36,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:25:36,543 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 435 [2018-09-19 06:25:36,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:25:36,559 INFO L225 Difference]: With dead ends: 3423 [2018-09-19 06:25:36,560 INFO L226 Difference]: Without dead ends: 2995 [2018-09-19 06:25:36,563 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 441 GetRequests, 426 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 06:25:36,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2018-09-19 06:25:36,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2990. [2018-09-19 06:25:36,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2990 states. [2018-09-19 06:25:36,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 3506 transitions. [2018-09-19 06:25:36,631 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 3506 transitions. Word has length 435 [2018-09-19 06:25:36,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:25:36,636 INFO L480 AbstractCegarLoop]: Abstraction has 2990 states and 3506 transitions. [2018-09-19 06:25:36,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:25:36,636 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 3506 transitions. [2018-09-19 06:25:36,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2018-09-19 06:25:36,642 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:25:36,643 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:25:36,643 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:25:36,644 INFO L82 PathProgramCache]: Analyzing trace with hash -405759879, now seen corresponding path program 1 times [2018-09-19 06:25:36,644 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:25:36,644 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 448 with the following transitions: [2018-09-19 06:25:36,646 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:25:36,650 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:25:36,650 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:25:36,684 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:25:37,495 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:25:37,495 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 06:25:37,532 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:25:37,868 INFO L232 lantSequenceWeakener]: Weakened 444 states. On average, predicates are now at 77.75% of their original sizes. [2018-09-19 06:25:37,868 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:25:37,972 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:25:37,973 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:25:37,973 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:25:37,973 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:25:37,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:25:37,974 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:25:37,974 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:25:37,974 INFO L87 Difference]: Start difference. First operand 2990 states and 3506 transitions. Second operand 10 states. [2018-09-19 06:25:43,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:25:43,665 INFO L93 Difference]: Finished difference Result 3768 states and 4910 transitions. [2018-09-19 06:25:43,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:25:43,666 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 447 [2018-09-19 06:25:43,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:25:43,681 INFO L225 Difference]: With dead ends: 3768 [2018-09-19 06:25:43,681 INFO L226 Difference]: Without dead ends: 3340 [2018-09-19 06:25:43,685 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 453 GetRequests, 438 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 06:25:43,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2018-09-19 06:25:43,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 3327. [2018-09-19 06:25:43,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3327 states. [2018-09-19 06:25:43,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 3891 transitions. [2018-09-19 06:25:43,770 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 3891 transitions. Word has length 447 [2018-09-19 06:25:43,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:25:43,771 INFO L480 AbstractCegarLoop]: Abstraction has 3327 states and 3891 transitions. [2018-09-19 06:25:43,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:25:43,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 3891 transitions. [2018-09-19 06:25:43,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2018-09-19 06:25:43,777 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:25:43,778 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:25:43,778 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:25:43,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1731361084, now seen corresponding path program 1 times [2018-09-19 06:25:43,779 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:25:43,779 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 464 with the following transitions: [2018-09-19 06:25:43,780 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:25:43,785 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:25:43,785 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:25:43,921 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:25:45,427 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:25:45,428 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 06:25:45,434 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:25:45,867 INFO L232 lantSequenceWeakener]: Weakened 460 states. On average, predicates are now at 77.73% of their original sizes. [2018-09-19 06:25:45,867 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:25:46,003 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:25:46,003 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:25:46,003 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:25:46,003 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:25:46,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:25:46,004 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:25:46,004 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:25:46,004 INFO L87 Difference]: Start difference. First operand 3327 states and 3891 transitions. Second operand 10 states. [2018-09-19 06:25:54,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:25:54,556 INFO L93 Difference]: Finished difference Result 4111 states and 5313 transitions. [2018-09-19 06:25:54,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 06:25:54,558 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 463 [2018-09-19 06:25:54,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:25:54,575 INFO L225 Difference]: With dead ends: 4111 [2018-09-19 06:25:54,575 INFO L226 Difference]: Without dead ends: 3683 [2018-09-19 06:25:54,578 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 469 GetRequests, 454 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 06:25:54,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3683 states. [2018-09-19 06:25:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3683 to 3665. [2018-09-19 06:25:54,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3665 states. [2018-09-19 06:25:54,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3665 states to 3665 states and 4355 transitions. [2018-09-19 06:25:54,648 INFO L78 Accepts]: Start accepts. Automaton has 3665 states and 4355 transitions. Word has length 463 [2018-09-19 06:25:54,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:25:54,649 INFO L480 AbstractCegarLoop]: Abstraction has 3665 states and 4355 transitions. [2018-09-19 06:25:54,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:25:54,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 4355 transitions. [2018-09-19 06:25:54,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2018-09-19 06:25:54,657 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:25:54,657 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:25:54,658 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:25:54,658 INFO L82 PathProgramCache]: Analyzing trace with hash 781600232, now seen corresponding path program 1 times [2018-09-19 06:25:54,658 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:25:54,658 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 503 with the following transitions: [2018-09-19 06:25:54,659 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:25:54,663 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:25:54,663 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:25:54,789 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:25:55,070 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:25:55,071 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 06:25:55,075 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:25:55,368 INFO L232 lantSequenceWeakener]: Weakened 499 states. On average, predicates are now at 77.7% of their original sizes. [2018-09-19 06:25:55,369 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:25:55,458 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:25:55,458 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:25:55,458 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:25:55,459 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:25:55,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:25:55,459 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:25:55,460 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:25:55,460 INFO L87 Difference]: Start difference. First operand 3665 states and 4355 transitions. Second operand 10 states. [2018-09-19 06:26:04,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:26:04,268 INFO L93 Difference]: Finished difference Result 4763 states and 6203 transitions. [2018-09-19 06:26:04,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:26:04,269 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 502 [2018-09-19 06:26:04,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:26:04,285 INFO L225 Difference]: With dead ends: 4763 [2018-09-19 06:26:04,285 INFO L226 Difference]: Without dead ends: 3997 [2018-09-19 06:26:04,289 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 508 GetRequests, 493 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 06:26:04,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3997 states. [2018-09-19 06:26:04,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3997 to 3988. [2018-09-19 06:26:04,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3988 states. [2018-09-19 06:26:04,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3988 states to 3988 states and 4706 transitions. [2018-09-19 06:26:04,359 INFO L78 Accepts]: Start accepts. Automaton has 3988 states and 4706 transitions. Word has length 502 [2018-09-19 06:26:04,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:26:04,360 INFO L480 AbstractCegarLoop]: Abstraction has 3988 states and 4706 transitions. [2018-09-19 06:26:04,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:26:04,360 INFO L276 IsEmpty]: Start isEmpty. Operand 3988 states and 4706 transitions. [2018-09-19 06:26:04,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2018-09-19 06:26:04,368 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:26:04,369 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:26:04,369 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:26:04,370 INFO L82 PathProgramCache]: Analyzing trace with hash -802592864, now seen corresponding path program 1 times [2018-09-19 06:26:04,370 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:26:04,370 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 515 with the following transitions: [2018-09-19 06:26:04,371 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:26:04,375 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:26:04,375 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:26:04,503 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:26:05,063 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:26:05,063 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 06:26:05,075 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:26:05,370 INFO L232 lantSequenceWeakener]: Weakened 511 states. On average, predicates are now at 77.69% of their original sizes. [2018-09-19 06:26:05,371 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:26:05,462 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:26:05,462 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:26:05,462 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:26:05,462 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:26:05,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:26:05,463 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:26:05,463 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:26:05,463 INFO L87 Difference]: Start difference. First operand 3988 states and 4706 transitions. Second operand 10 states. [2018-09-19 06:26:10,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:26:10,695 INFO L93 Difference]: Finished difference Result 5104 states and 6576 transitions. [2018-09-19 06:26:10,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:26:10,696 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 514 [2018-09-19 06:26:10,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:26:10,711 INFO L225 Difference]: With dead ends: 5104 [2018-09-19 06:26:10,711 INFO L226 Difference]: Without dead ends: 4338 [2018-09-19 06:26:10,715 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 520 GetRequests, 505 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 06:26:10,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4338 states. [2018-09-19 06:26:10,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4338 to 4323. [2018-09-19 06:26:10,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4323 states. [2018-09-19 06:26:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 5090 transitions. [2018-09-19 06:26:10,807 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 5090 transitions. Word has length 514 [2018-09-19 06:26:10,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:26:10,808 INFO L480 AbstractCegarLoop]: Abstraction has 4323 states and 5090 transitions. [2018-09-19 06:26:10,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:26:10,809 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 5090 transitions. [2018-09-19 06:26:10,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2018-09-19 06:26:10,819 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:26:10,820 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 06:26:10,820 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:26:10,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1331691281, now seen corresponding path program 1 times [2018-09-19 06:26:10,821 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:26:10,821 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 534 with the following transitions: [2018-09-19 06:26:10,822 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:26:10,827 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:26:10,827 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:26:11,099 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:26:13,349 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:26:13,349 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 06:26:13,358 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:26:13,852 INFO L232 lantSequenceWeakener]: Weakened 530 states. On average, predicates are now at 77.69% of their original sizes. [2018-09-19 06:26:13,853 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:26:13,944 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:26:13,944 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:26:13,944 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:26:13,944 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:26:13,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:26:13,945 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:26:13,945 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:26:13,945 INFO L87 Difference]: Start difference. First operand 4323 states and 5090 transitions. Second operand 10 states. [2018-09-19 06:26:24,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:26:24,371 INFO L93 Difference]: Finished difference Result 6815 states and 8507 transitions. [2018-09-19 06:26:24,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:26:24,372 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 533 [2018-09-19 06:26:24,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:26:24,387 INFO L225 Difference]: With dead ends: 6815 [2018-09-19 06:26:24,387 INFO L226 Difference]: Without dead ends: 6049 [2018-09-19 06:26:24,391 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 540 GetRequests, 524 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 06:26:24,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6049 states. [2018-09-19 06:26:24,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6049 to 6002. [2018-09-19 06:26:24,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6002 states. [2018-09-19 06:26:24,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6002 states to 6002 states and 7115 transitions. [2018-09-19 06:26:24,485 INFO L78 Accepts]: Start accepts. Automaton has 6002 states and 7115 transitions. Word has length 533 [2018-09-19 06:26:24,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:26:24,486 INFO L480 AbstractCegarLoop]: Abstraction has 6002 states and 7115 transitions. [2018-09-19 06:26:24,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:26:24,487 INFO L276 IsEmpty]: Start isEmpty. Operand 6002 states and 7115 transitions. [2018-09-19 06:26:24,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2018-09-19 06:26:24,498 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:26:24,498 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:26:24,499 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:26:24,499 INFO L82 PathProgramCache]: Analyzing trace with hash -683642098, now seen corresponding path program 1 times [2018-09-19 06:26:24,499 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:26:24,499 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 535 with the following transitions: [2018-09-19 06:26:24,500 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:26:24,505 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:26:24,505 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:26:24,638 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:26:25,898 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:26:25,898 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 06:26:25,904 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:26:26,548 INFO L232 lantSequenceWeakener]: Weakened 531 states. On average, predicates are now at 77.69% of their original sizes. [2018-09-19 06:26:26,548 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:26:26,638 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:26:26,638 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:26:26,638 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:26:26,638 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:26:26,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:26:26,639 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:26:26,639 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:26:26,640 INFO L87 Difference]: Start difference. First operand 6002 states and 7115 transitions. Second operand 10 states. [2018-09-19 06:26:37,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:26:37,772 INFO L93 Difference]: Finished difference Result 10559 states and 13211 transitions. [2018-09-19 06:26:37,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 06:26:37,772 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 534 [2018-09-19 06:26:37,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:26:37,795 INFO L225 Difference]: With dead ends: 10559 [2018-09-19 06:26:37,795 INFO L226 Difference]: Without dead ends: 9428 [2018-09-19 06:26:37,802 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 541 GetRequests, 525 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 06:26:37,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9428 states. [2018-09-19 06:26:37,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9428 to 9359. [2018-09-19 06:26:37,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9359 states. [2018-09-19 06:26:37,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9359 states to 9359 states and 11238 transitions. [2018-09-19 06:26:37,950 INFO L78 Accepts]: Start accepts. Automaton has 9359 states and 11238 transitions. Word has length 534 [2018-09-19 06:26:37,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:26:37,950 INFO L480 AbstractCegarLoop]: Abstraction has 9359 states and 11238 transitions. [2018-09-19 06:26:37,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:26:37,951 INFO L276 IsEmpty]: Start isEmpty. Operand 9359 states and 11238 transitions. [2018-09-19 06:26:37,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2018-09-19 06:26:37,964 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:26:37,964 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 06:26:37,964 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:26:37,965 INFO L82 PathProgramCache]: Analyzing trace with hash 2022159750, now seen corresponding path program 1 times [2018-09-19 06:26:37,965 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:26:37,965 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 539 with the following transitions: [2018-09-19 06:26:37,966 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:26:37,970 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:26:37,971 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:26:38,094 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:26:40,044 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:26:40,044 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 06:26:40,051 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:26:40,527 INFO L232 lantSequenceWeakener]: Weakened 535 states. On average, predicates are now at 77.69% of their original sizes. [2018-09-19 06:26:40,527 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:26:40,931 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:26:40,932 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:26:40,932 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:26:40,932 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:26:40,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:26:40,933 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:26:40,936 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:26:40,936 INFO L87 Difference]: Start difference. First operand 9359 states and 11238 transitions. Second operand 10 states. [2018-09-19 06:26:50,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:26:50,142 INFO L93 Difference]: Finished difference Result 13103 states and 16927 transitions. [2018-09-19 06:26:50,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:26:50,143 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 538 [2018-09-19 06:26:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:26:50,167 INFO L225 Difference]: With dead ends: 13103 [2018-09-19 06:26:50,167 INFO L226 Difference]: Without dead ends: 10902 [2018-09-19 06:26:50,176 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 545 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 06:26:50,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10902 states. [2018-09-19 06:26:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10902 to 10799. [2018-09-19 06:26:50,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10799 states. [2018-09-19 06:26:50,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10799 states to 10799 states and 13322 transitions. [2018-09-19 06:26:50,562 INFO L78 Accepts]: Start accepts. Automaton has 10799 states and 13322 transitions. Word has length 538 [2018-09-19 06:26:50,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:26:50,563 INFO L480 AbstractCegarLoop]: Abstraction has 10799 states and 13322 transitions. [2018-09-19 06:26:50,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:26:50,563 INFO L276 IsEmpty]: Start isEmpty. Operand 10799 states and 13322 transitions. [2018-09-19 06:26:50,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-09-19 06:26:50,576 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:26:50,577 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 06:26:50,577 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:26:50,577 INFO L82 PathProgramCache]: Analyzing trace with hash 93711960, now seen corresponding path program 1 times [2018-09-19 06:26:50,577 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:26:50,578 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 542 with the following transitions: [2018-09-19 06:26:50,578 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:26:50,584 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:26:50,584 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:26:50,709 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:26:52,536 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:26:52,536 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 06:26:52,540 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:26:53,319 INFO L232 lantSequenceWeakener]: Weakened 538 states. On average, predicates are now at 77.68% of their original sizes. [2018-09-19 06:26:53,320 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:26:53,411 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:26:53,411 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:26:53,411 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:26:53,411 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:26:53,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:26:53,412 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:26:53,412 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:26:53,412 INFO L87 Difference]: Start difference. First operand 10799 states and 13322 transitions. Second operand 10 states. [2018-09-19 06:27:01,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:27:01,529 INFO L93 Difference]: Finished difference Result 16040 states and 21468 transitions. [2018-09-19 06:27:01,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:27:01,530 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 541 [2018-09-19 06:27:01,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:27:01,582 INFO L225 Difference]: With dead ends: 16040 [2018-09-19 06:27:01,582 INFO L226 Difference]: Without dead ends: 12740 [2018-09-19 06:27:01,595 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 548 GetRequests, 532 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 06:27:01,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12740 states. [2018-09-19 06:27:01,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12740 to 12634. [2018-09-19 06:27:01,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12634 states. [2018-09-19 06:27:01,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12634 states to 12634 states and 16164 transitions. [2018-09-19 06:27:01,800 INFO L78 Accepts]: Start accepts. Automaton has 12634 states and 16164 transitions. Word has length 541 [2018-09-19 06:27:01,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:27:01,801 INFO L480 AbstractCegarLoop]: Abstraction has 12634 states and 16164 transitions. [2018-09-19 06:27:01,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:27:01,801 INFO L276 IsEmpty]: Start isEmpty. Operand 12634 states and 16164 transitions. [2018-09-19 06:27:01,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2018-09-19 06:27:01,815 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:27:01,816 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 06:27:01,816 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:27:01,816 INFO L82 PathProgramCache]: Analyzing trace with hash -882606572, now seen corresponding path program 1 times [2018-09-19 06:27:01,817 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:27:01,817 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 544 with the following transitions: [2018-09-19 06:27:01,817 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:27:01,823 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:27:01,823 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:27:01,945 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:27:03,319 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:27:03,319 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 06:27:03,356 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:27:03,742 INFO L232 lantSequenceWeakener]: Weakened 540 states. On average, predicates are now at 77.68% of their original sizes. [2018-09-19 06:27:03,742 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:27:03,831 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:27:03,832 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:27:03,832 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:27:03,832 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:27:03,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:27:03,833 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:27:03,833 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:27:03,833 INFO L87 Difference]: Start difference. First operand 12634 states and 16164 transitions. Second operand 10 states. [2018-09-19 06:27:11,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:27:11,943 INFO L93 Difference]: Finished difference Result 18563 states and 25433 transitions. [2018-09-19 06:27:11,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:27:11,944 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 543 [2018-09-19 06:27:11,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:27:11,976 INFO L225 Difference]: With dead ends: 18563 [2018-09-19 06:27:11,976 INFO L226 Difference]: Without dead ends: 13428 [2018-09-19 06:27:11,990 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 550 GetRequests, 534 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 06:27:11,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13428 states. [2018-09-19 06:27:12,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13428 to 13327. [2018-09-19 06:27:12,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13327 states. [2018-09-19 06:27:12,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13327 states to 13327 states and 17227 transitions. [2018-09-19 06:27:12,191 INFO L78 Accepts]: Start accepts. Automaton has 13327 states and 17227 transitions. Word has length 543 [2018-09-19 06:27:12,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:27:12,192 INFO L480 AbstractCegarLoop]: Abstraction has 13327 states and 17227 transitions. [2018-09-19 06:27:12,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:27:12,192 INFO L276 IsEmpty]: Start isEmpty. Operand 13327 states and 17227 transitions. [2018-09-19 06:27:12,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2018-09-19 06:27:12,206 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:27:12,207 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 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 06:27:12,207 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:27:12,207 INFO L82 PathProgramCache]: Analyzing trace with hash 248068726, now seen corresponding path program 1 times [2018-09-19 06:27:12,207 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:27:12,208 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 547 with the following transitions: [2018-09-19 06:27:12,208 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:27:12,213 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:27:12,213 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:27:12,337 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:27:14,821 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:27:14,822 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 06:27:14,829 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:27:15,770 INFO L232 lantSequenceWeakener]: Weakened 543 states. On average, predicates are now at 77.68% of their original sizes. [2018-09-19 06:27:15,770 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:27:16,296 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:27:16,296 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:27:16,296 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:27:16,296 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:27:16,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:27:16,297 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:27:16,297 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:27:16,298 INFO L87 Difference]: Start difference. First operand 13327 states and 17227 transitions. Second operand 10 states. [2018-09-19 06:27:25,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:27:25,823 INFO L93 Difference]: Finished difference Result 20769 states and 28847 transitions. [2018-09-19 06:27:25,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:27:25,824 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 546 [2018-09-19 06:27:25,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:27:25,850 INFO L225 Difference]: With dead ends: 20769 [2018-09-19 06:27:25,850 INFO L226 Difference]: Without dead ends: 14941 [2018-09-19 06:27:25,861 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 553 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 06:27:25,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14941 states. [2018-09-19 06:27:26,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14941 to 14801. [2018-09-19 06:27:26,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14801 states. [2018-09-19 06:27:26,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14801 states to 14801 states and 19580 transitions. [2018-09-19 06:27:26,078 INFO L78 Accepts]: Start accepts. Automaton has 14801 states and 19580 transitions. Word has length 546 [2018-09-19 06:27:26,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:27:26,079 INFO L480 AbstractCegarLoop]: Abstraction has 14801 states and 19580 transitions. [2018-09-19 06:27:26,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:27:26,079 INFO L276 IsEmpty]: Start isEmpty. Operand 14801 states and 19580 transitions. [2018-09-19 06:27:26,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2018-09-19 06:27:26,091 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:27:26,091 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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 06:27:26,091 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:27:26,092 INFO L82 PathProgramCache]: Analyzing trace with hash 596280460, now seen corresponding path program 1 times [2018-09-19 06:27:26,092 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:27:26,092 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 548 with the following transitions: [2018-09-19 06:27:26,092 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:27:26,097 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:27:26,097 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:27:26,211 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:27:27,182 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:27:27,182 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 06:27:27,188 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:27:27,668 INFO L232 lantSequenceWeakener]: Weakened 544 states. On average, predicates are now at 77.68% of their original sizes. [2018-09-19 06:27:27,669 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:27:27,790 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:27:27,790 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:27:27,790 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:27:27,790 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:27:27,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:27:27,791 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:27:27,791 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:27:27,791 INFO L87 Difference]: Start difference. First operand 14801 states and 19580 transitions. Second operand 10 states. [2018-09-19 06:27:38,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:27:38,422 INFO L93 Difference]: Finished difference Result 24096 states and 34230 transitions. [2018-09-19 06:27:38,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:27:38,424 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 547 [2018-09-19 06:27:38,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:27:38,461 INFO L225 Difference]: With dead ends: 24096 [2018-09-19 06:27:38,461 INFO L226 Difference]: Without dead ends: 16794 [2018-09-19 06:27:38,478 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 554 GetRequests, 538 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 06:27:38,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16794 states. [2018-09-19 06:27:38,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16794 to 16623. [2018-09-19 06:27:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16623 states. [2018-09-19 06:27:38,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16623 states to 16623 states and 22601 transitions. [2018-09-19 06:27:38,731 INFO L78 Accepts]: Start accepts. Automaton has 16623 states and 22601 transitions. Word has length 547 [2018-09-19 06:27:38,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:27:38,732 INFO L480 AbstractCegarLoop]: Abstraction has 16623 states and 22601 transitions. [2018-09-19 06:27:38,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:27:38,732 INFO L276 IsEmpty]: Start isEmpty. Operand 16623 states and 22601 transitions. [2018-09-19 06:27:38,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2018-09-19 06:27:38,744 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:27:38,745 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:38,745 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:27:38,745 INFO L82 PathProgramCache]: Analyzing trace with hash 95950402, now seen corresponding path program 1 times [2018-09-19 06:27:38,745 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:27:38,746 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 563 with the following transitions: [2018-09-19 06:27:38,746 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:27:38,750 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:27:38,750 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:27:38,872 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:27:39,154 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:27:39,155 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 06:27:39,162 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:27:39,414 INFO L232 lantSequenceWeakener]: Weakened 559 states. On average, predicates are now at 77.65% of their original sizes. [2018-09-19 06:27:39,415 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:27:39,513 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:27:39,514 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:27:39,514 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:27:39,514 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:27:39,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:27:39,515 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:27:39,515 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:27:39,515 INFO L87 Difference]: Start difference. First operand 16623 states and 22601 transitions. Second operand 10 states. [2018-09-19 06:27:46,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:27:46,893 INFO L93 Difference]: Finished difference Result 27042 states and 38632 transitions. [2018-09-19 06:27:46,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:27:46,895 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 562 [2018-09-19 06:27:46,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:27:46,934 INFO L225 Difference]: With dead ends: 27042 [2018-09-19 06:27:46,935 INFO L226 Difference]: Without dead ends: 17918 [2018-09-19 06:27:46,956 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 568 GetRequests, 553 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 06:27:46,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17918 states. [2018-09-19 06:27:47,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17918 to 17909. [2018-09-19 06:27:47,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17909 states. [2018-09-19 06:27:47,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17909 states to 17909 states and 23997 transitions. [2018-09-19 06:27:47,200 INFO L78 Accepts]: Start accepts. Automaton has 17909 states and 23997 transitions. Word has length 562 [2018-09-19 06:27:47,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:27:47,201 INFO L480 AbstractCegarLoop]: Abstraction has 17909 states and 23997 transitions. [2018-09-19 06:27:47,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:27:47,201 INFO L276 IsEmpty]: Start isEmpty. Operand 17909 states and 23997 transitions. [2018-09-19 06:27:47,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2018-09-19 06:27:47,211 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:27:47,212 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 06:27:47,212 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:27:47,212 INFO L82 PathProgramCache]: Analyzing trace with hash -409958534, now seen corresponding path program 1 times [2018-09-19 06:27:47,212 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:27:47,213 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 566 with the following transitions: [2018-09-19 06:27:47,213 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:27:47,217 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:27:47,217 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:27:47,309 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:27:49,260 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:27:49,261 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 06:27:49,267 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:27:49,749 INFO L232 lantSequenceWeakener]: Weakened 562 states. On average, predicates are now at 77.67% of their original sizes. [2018-09-19 06:27:49,750 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:27:49,845 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:27:49,846 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:27:49,846 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:27:49,846 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:27:49,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:27:49,846 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:27:49,847 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:27:49,847 INFO L87 Difference]: Start difference. First operand 17909 states and 23997 transitions. Second operand 10 states. [2018-09-19 06:28:01,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:28:01,716 INFO L93 Difference]: Finished difference Result 33332 states and 47836 transitions. [2018-09-19 06:28:01,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:28:01,717 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 565 [2018-09-19 06:28:01,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:28:01,765 INFO L225 Difference]: With dead ends: 33332 [2018-09-19 06:28:01,765 INFO L226 Difference]: Without dead ends: 21522 [2018-09-19 06:28:01,787 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 572 GetRequests, 556 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 06:28:01,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21522 states. [2018-09-19 06:28:02,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21522 to 21340. [2018-09-19 06:28:02,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21340 states. [2018-09-19 06:28:02,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21340 states to 21340 states and 29043 transitions. [2018-09-19 06:28:02,091 INFO L78 Accepts]: Start accepts. Automaton has 21340 states and 29043 transitions. Word has length 565 [2018-09-19 06:28:02,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:28:02,091 INFO L480 AbstractCegarLoop]: Abstraction has 21340 states and 29043 transitions. [2018-09-19 06:28:02,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:28:02,092 INFO L276 IsEmpty]: Start isEmpty. Operand 21340 states and 29043 transitions. [2018-09-19 06:28:02,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2018-09-19 06:28:02,103 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:28:02,103 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:02,104 INFO L423 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:28:02,104 INFO L82 PathProgramCache]: Analyzing trace with hash 2131170298, now seen corresponding path program 1 times [2018-09-19 06:28:02,104 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:28:02,104 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 575 with the following transitions: [2018-09-19 06:28:02,105 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:28:02,109 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:28:02,109 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:28:02,199 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:28:02,577 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:28:02,577 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 06:28:02,584 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:28:02,932 INFO L232 lantSequenceWeakener]: Weakened 571 states. On average, predicates are now at 77.64% of their original sizes. [2018-09-19 06:28:02,932 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:28:03,018 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:28:03,019 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:28:03,019 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:28:03,019 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:28:03,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:28:03,019 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:28:03,020 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:28:03,020 INFO L87 Difference]: Start difference. First operand 21340 states and 29043 transitions. Second operand 10 states. [2018-09-19 06:28:08,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:28:08,422 INFO L93 Difference]: Finished difference Result 35263 states and 50281 transitions. [2018-09-19 06:28:08,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 06:28:08,431 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 574 [2018-09-19 06:28:08,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:28:08,478 INFO L225 Difference]: With dead ends: 35263 [2018-09-19 06:28:08,478 INFO L226 Difference]: Without dead ends: 22700 [2018-09-19 06:28:08,499 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 580 GetRequests, 565 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 06:28:08,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22700 states. [2018-09-19 06:28:08,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22700 to 22680. [2018-09-19 06:28:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22680 states. [2018-09-19 06:28:09,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22680 states to 22680 states and 30582 transitions. [2018-09-19 06:28:09,024 INFO L78 Accepts]: Start accepts. Automaton has 22680 states and 30582 transitions. Word has length 574 [2018-09-19 06:28:09,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:28:09,025 INFO L480 AbstractCegarLoop]: Abstraction has 22680 states and 30582 transitions. [2018-09-19 06:28:09,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:28:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand 22680 states and 30582 transitions. [2018-09-19 06:28:09,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2018-09-19 06:28:09,035 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:28:09,035 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 06:28:09,035 INFO L423 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:28:09,036 INFO L82 PathProgramCache]: Analyzing trace with hash 2061581587, now seen corresponding path program 1 times [2018-09-19 06:28:09,036 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:28:09,036 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 577 with the following transitions: [2018-09-19 06:28:09,036 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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 06:28:09,040 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:28:09,040 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:28:09,164 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:28:10,463 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:28:10,463 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 06:28:10,473 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:28:10,882 INFO L232 lantSequenceWeakener]: Weakened 573 states. On average, predicates are now at 77.66% of their original sizes. [2018-09-19 06:28:10,882 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:28:10,969 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:28:10,969 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:28:10,969 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 06:28:10,969 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:28:10,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 06:28:10,970 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 06:28:10,970 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 06:28:10,970 INFO L87 Difference]: Start difference. First operand 22680 states and 30582 transitions. Second operand 10 states. [2018-09-19 06:28:21,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:28:21,699 INFO L93 Difference]: Finished difference Result 36849 states and 52597 transitions. [2018-09-19 06:28:21,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 06:28:21,701 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 576 [2018-09-19 06:28:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:28:21,752 INFO L225 Difference]: With dead ends: 36849 [2018-09-19 06:28:21,752 INFO L226 Difference]: Without dead ends: 24286 [2018-09-19 06:28:21,772 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 583 GetRequests, 567 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 06:28:21,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24286 states. [2018-09-19 06:28:22,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24286 to 24087. [2018-09-19 06:28:22,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24087 states. [2018-09-19 06:28:22,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24087 states to 24087 states and 32751 transitions. [2018-09-19 06:28:22,054 INFO L78 Accepts]: Start accepts. Automaton has 24087 states and 32751 transitions. Word has length 576 [2018-09-19 06:28:22,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:28:22,054 INFO L480 AbstractCegarLoop]: Abstraction has 24087 states and 32751 transitions. [2018-09-19 06:28:22,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 06:28:22,055 INFO L276 IsEmpty]: Start isEmpty. Operand 24087 states and 32751 transitions. [2018-09-19 06:28:22,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2018-09-19 06:28:22,063 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:28:22,063 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-09-19 06:28:22,064 INFO L423 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:28:22,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1644328395, now seen corresponding path program 1 times [2018-09-19 06:28:22,064 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:28:22,064 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 581 with the following transitions: [2018-09-19 06:28:22,065 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], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [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], [782], [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 06:28:22,069 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:28:22,069 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:28:22,157 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 06:28:24,574 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:28:24,574 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 06:28:24,580 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-19 06:28:25,280 INFO L232 lantSequenceWeakener]: Weakened 577 states. On average, predicates are now at 77.66% of their original sizes. [2018-09-19 06:28:25,280 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:28:25,316 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 06:28:25,320 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 06:28:25,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 06:28:25 BoogieIcfgContainer [2018-09-19 06:28:25,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 06:28:25,321 INFO L168 Benchmark]: Toolchain (without parser) took 241966.78 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -300.9 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-19 06:28:25,322 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 06:28:25,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1366.47 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 06:28:25,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 209.90 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 06:28:25,324 INFO L168 Benchmark]: Boogie Preprocessor took 620.37 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 885.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-19 06:28:25,325 INFO L168 Benchmark]: RCFGBuilder took 7624.74 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: 307.7 MB). Peak memory consumption was 307.7 MB. Max. memory is 7.1 GB. [2018-09-19 06:28:25,326 INFO L168 Benchmark]: TraceAbstraction took 232139.25 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 1.7 GB in the end (delta: 267.0 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-19 06:28:25,330 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 1366.47 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 209.90 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 620.37 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 885.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7624.74 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: 307.7 MB). Peak memory consumption was 307.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232139.25 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 1.7 GB in the end (delta: 267.0 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 178]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 178). Cancelled while BasicCegarLoop was analyzing trace of length 581 with TraceHistMax 4, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 232.0s OverallTime, 23 OverallIterations, 4 TraceHistogramMax, 185.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8383 SDtfs, 28777 SDslu, 11168 SDs, 0 SdLazy, 85531 SolverSat, 6286 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 162.7s Time, PredicateUnifierStatistics: 44 DeclaredPredicates, 10318 GetRequests, 9990 SyntacticMatches, 0 SemanticMatches, 328 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24087occurred in iteration=22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 28.0s AbstIntTime, 23 AbstIntIterations, 23 AbstIntStrong, 0.9982949241375886 AbsIntWeakeningRatio, 0.05846755423144959 AbsIntAvgWeakeningVarsNumRemoved, 21.38152872172051 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 22 MinimizatonAttempts, 1233 StatesRemovedByMinimization, 22 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_label55_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_06-28-25-343.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label55_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_06-28-25-343.csv Completed graceful shutdown