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_label16_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:02:50,695 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:02:50,697 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:02:50,709 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:02:50,710 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:02:50,711 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:02:50,712 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:02:50,714 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:02:50,715 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:02:50,716 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:02:50,717 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:02:50,717 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:02:50,718 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:02:50,719 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:02:50,720 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:02:50,721 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:02:50,722 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:02:50,723 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:02:50,725 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:02:50,727 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:02:50,728 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:02:50,729 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:02:50,732 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 15:02:50,732 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 15:02:50,732 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 15:02:50,733 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 15:02:50,734 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 15:02:50,735 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 15:02:50,736 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 15:02:50,737 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 15:02:50,740 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 15:02:50,741 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 15:02:50,741 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:02:50,742 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:02:50,743 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:02:50,743 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:02:50,746 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 [2018-09-15 15:02:50,771 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:02:50,771 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:02:50,772 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:02:50,772 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:02:50,772 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:02:50,773 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:02:50,773 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 15:02:50,773 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:02:50,773 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:02:50,773 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 15:02:50,774 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:02:50,774 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:02:50,775 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:02:50,775 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:02:50,775 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:02:50,775 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:02:50,775 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:02:50,776 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:02:50,776 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:02:50,776 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:02:50,776 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:02:50,776 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:02:50,777 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:02:50,777 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:02:50,777 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:02:50,777 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:02:50,777 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:02:50,778 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:02:50,778 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:02:50,778 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:02:50,778 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:02:50,778 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:02:50,779 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:02:50,779 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:02:50,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:02:50,839 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:02:50,847 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:02:50,849 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:02:50,849 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:02:50,850 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label16_true-unreach-call.c [2018-09-15 15:02:51,203 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3084a21f0/17e9604387d9434ebaa1285f423145db/FLAGeaaa80b9c [2018-09-15 15:02:51,579 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:02:51,580 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label16_true-unreach-call.c [2018-09-15 15:02:51,602 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3084a21f0/17e9604387d9434ebaa1285f423145db/FLAGeaaa80b9c [2018-09-15 15:02:51,622 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3084a21f0/17e9604387d9434ebaa1285f423145db [2018-09-15 15:02:51,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:02:51,635 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:02:51,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:02:51,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:02:51,644 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:02:51,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:02:51" (1/1) ... [2018-09-15 15:02:51,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f57d78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:51, skipping insertion in model container [2018-09-15 15:02:51,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:02:51" (1/1) ... [2018-09-15 15:02:51,659 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:02:52,529 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:02:52,549 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:02:52,825 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:02:52,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:52 WrapperNode [2018-09-15 15:02:52,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:02:52,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:02:52,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:02:52,963 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:02:52,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:52" (1/1) ... [2018-09-15 15:02:53,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:52" (1/1) ... [2018-09-15 15:02:53,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:02:53,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:02:53,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:02:53,189 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:02:53,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:52" (1/1) ... [2018-09-15 15:02:53,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:52" (1/1) ... [2018-09-15 15:02:53,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:52" (1/1) ... [2018-09-15 15:02:53,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:52" (1/1) ... [2018-09-15 15:02:53,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:52" (1/1) ... [2018-09-15 15:02:53,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:52" (1/1) ... [2018-09-15 15:02:53,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:52" (1/1) ... [2018-09-15 15:02:53,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:02:53,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:02:53,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:02:53,902 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:02:53,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:52" (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 [2018-09-15 15:02:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:02:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:02:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 15:02:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 15:02:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 15:02:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 15:02:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:02:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:02:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:02:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:03:04,156 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:03:04,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:03:04 BoogieIcfgContainer [2018-09-15 15:03:04,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:03:04,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:03:04,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:03:04,161 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:03:04,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:02:51" (1/3) ... [2018-09-15 15:03:04,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c96b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:03:04, skipping insertion in model container [2018-09-15 15:03:04,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:02:52" (2/3) ... [2018-09-15 15:03:04,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c96b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:03:04, skipping insertion in model container [2018-09-15 15:03:04,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:03:04" (3/3) ... [2018-09-15 15:03:04,165 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label16_true-unreach-call.c [2018-09-15 15:03:04,173 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:03:04,181 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:03:04,246 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:03:04,247 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:03:04,247 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:03:04,247 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:03:04,247 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:03:04,247 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:03:04,248 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:03:04,248 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:03:04,248 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:03:04,279 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-15 15:03:04,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-09-15 15:03:04,290 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:03:04,291 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, 1, 1, 1, 1, 1] [2018-09-15 15:03:04,292 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:03:04,298 INFO L82 PathProgramCache]: Analyzing trace with hash 539142097, now seen corresponding path program 1 times [2018-09-15 15:03:04,301 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:03:04,302 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 70 with the following transitions: [2018-09-15 15:03:04,305 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], [489], [497], [505], [513], [521], [525], [527], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-15 15:03:04,358 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:03:04,358 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:03:04,837 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:03:04,839 INFO L272 AbstractInterpreter]: Visited 68 different actions 68 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 15:03:04,885 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:03:05,226 INFO L232 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 80.55% of their original sizes. [2018-09-15 15:03:05,226 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:03:05,472 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:03:05,475 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:03:05,476 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 15:03:05,476 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:03:05,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 15:03:05,488 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 15:03:05,489 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:03:05,491 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-15 15:03:12,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:03:12,287 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-15 15:03:12,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 15:03:12,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2018-09-15 15:03:12,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:03:12,314 INFO L225 Difference]: With dead ends: 1184 [2018-09-15 15:03:12,314 INFO L226 Difference]: Without dead ends: 744 [2018-09-15 15:03:12,330 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:03:12,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-15 15:03:12,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-15 15:03:12,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-15 15:03:12,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-15 15:03:12,458 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 69 [2018-09-15 15:03:12,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:03:12,459 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-15 15:03:12,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 15:03:12,460 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-15 15:03:12,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-09-15 15:03:12,469 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:03:12,470 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, 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] [2018-09-15 15:03:12,471 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:03:12,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1355795975, now seen corresponding path program 1 times [2018-09-15 15:03:12,471 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:03:12,471 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 166 with the following transitions: [2018-09-15 15:03:12,472 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], [489], [497], [505], [513], [521], [525], [527], [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] [2018-09-15 15:03:12,477 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:03:12,478 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:03:15,172 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:03:17,134 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:03:17,134 INFO L272 AbstractInterpreter]: Visited 103 different actions 199 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 15:03:17,143 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:03:19,348 INFO L232 lantSequenceWeakener]: Weakened 162 states. On average, predicates are now at 78.69% of their original sizes. [2018-09-15 15:03:19,349 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:03:19,750 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:03:19,751 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:03:19,751 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 15:03:19,751 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:03:19,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 15:03:19,753 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 15:03:19,753 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 15:03:19,753 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 11 states. [2018-09-15 15:03:27,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:03:27,715 INFO L93 Difference]: Finished difference Result 1792 states and 3044 transitions. [2018-09-15 15:03:27,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 15:03:27,717 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 165 [2018-09-15 15:03:27,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:03:27,734 INFO L225 Difference]: With dead ends: 1792 [2018-09-15 15:03:27,734 INFO L226 Difference]: Without dead ends: 1364 [2018-09-15 15:03:27,739 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 15:03:27,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-15 15:03:27,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1361. [2018-09-15 15:03:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1361 states. [2018-09-15 15:03:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1709 transitions. [2018-09-15 15:03:27,794 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1709 transitions. Word has length 165 [2018-09-15 15:03:27,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:03:27,795 INFO L480 AbstractCegarLoop]: Abstraction has 1361 states and 1709 transitions. [2018-09-15 15:03:27,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 15:03:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1709 transitions. [2018-09-15 15:03:27,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-09-15 15:03:27,812 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:03:27,812 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, 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] [2018-09-15 15:03:27,813 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:03:27,813 INFO L82 PathProgramCache]: Analyzing trace with hash 590941292, now seen corresponding path program 1 times [2018-09-15 15:03:27,816 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:03:27,817 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 251 with the following transitions: [2018-09-15 15:03:27,817 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], [489], [497], [505], [513], [521], [525], [527], [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], [1115], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 15:03:27,827 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:03:27,827 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:03:46,125 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:04:03,619 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:04:03,620 INFO L272 AbstractInterpreter]: Visited 188 different actions 369 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 15:04:03,643 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:04:22,406 INFO L232 lantSequenceWeakener]: Weakened 247 states. On average, predicates are now at 78.2% of their original sizes. [2018-09-15 15:04:22,406 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:04:22,538 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:04:22,539 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:04:22,539 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 15:04:22,539 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:04:22,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 15:04:22,542 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 15:04:22,542 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 15:04:22,543 INFO L87 Difference]: Start difference. First operand 1361 states and 1709 transitions. Second operand 12 states. [2018-09-15 15:04:33,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:04:33,275 INFO L93 Difference]: Finished difference Result 2411 states and 3681 transitions. [2018-09-15 15:04:33,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 15:04:33,279 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 250 [2018-09-15 15:04:33,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:04:33,294 INFO L225 Difference]: With dead ends: 2411 [2018-09-15 15:04:33,294 INFO L226 Difference]: Without dead ends: 1983 [2018-09-15 15:04:33,298 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 257 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 15:04:33,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2018-09-15 15:04:33,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1980. [2018-09-15 15:04:33,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1980 states. [2018-09-15 15:04:33,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2346 transitions. [2018-09-15 15:04:33,363 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2346 transitions. Word has length 250 [2018-09-15 15:04:33,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:04:33,364 INFO L480 AbstractCegarLoop]: Abstraction has 1980 states and 2346 transitions. [2018-09-15 15:04:33,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 15:04:33,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2346 transitions. [2018-09-15 15:04:33,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2018-09-15 15:04:33,373 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:04:33,374 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, 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] [2018-09-15 15:04:33,374 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:04:33,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1084484308, now seen corresponding path program 1 times [2018-09-15 15:04:33,375 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:04:33,375 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 308 with the following transitions: [2018-09-15 15:04:33,376 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], [489], [497], [505], [513], [521], [525], [527], [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], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 15:04:33,393 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:04:33,393 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:04:55,449 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:05:17,241 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:05:17,242 INFO L272 AbstractInterpreter]: Visited 245 different actions 483 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 15:05:17,287 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:05:40,395 INFO L232 lantSequenceWeakener]: Weakened 304 states. On average, predicates are now at 78.03% of their original sizes. [2018-09-15 15:05:40,395 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:05:40,607 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:05:40,607 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:05:40,607 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 15:05:40,607 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:05:40,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 15:05:40,608 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 15:05:40,610 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 15:05:40,611 INFO L87 Difference]: Start difference. First operand 1980 states and 2346 transitions. Second operand 12 states. [2018-09-15 15:05:47,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:05:47,542 INFO L93 Difference]: Finished difference Result 3030 states and 4318 transitions. [2018-09-15 15:05:47,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 15:05:47,549 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 307 [2018-09-15 15:05:47,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:05:47,564 INFO L225 Difference]: With dead ends: 3030 [2018-09-15 15:05:47,564 INFO L226 Difference]: Without dead ends: 2602 [2018-09-15 15:05:47,568 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 314 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 15:05:47,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2018-09-15 15:05:47,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2599. [2018-09-15 15:05:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2599 states. [2018-09-15 15:05:47,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 2983 transitions. [2018-09-15 15:05:47,655 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 2983 transitions. Word has length 307 [2018-09-15 15:05:47,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:05:47,656 INFO L480 AbstractCegarLoop]: Abstraction has 2599 states and 2983 transitions. [2018-09-15 15:05:47,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 15:05:47,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 2983 transitions. [2018-09-15 15:05:47,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-09-15 15:05:47,663 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:05:47,663 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, 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] [2018-09-15 15:05:47,663 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:05:47,664 INFO L82 PathProgramCache]: Analyzing trace with hash 530742453, now seen corresponding path program 1 times [2018-09-15 15:05:47,664 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:05:47,664 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 309 with the following transitions: [2018-09-15 15:05:47,665 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], [489], [497], [505], [513], [521], [525], [527], [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], [1382], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 15:05:47,671 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:05:47,671 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:06:09,082 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:06:30,555 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:06:30,555 INFO L272 AbstractInterpreter]: Visited 246 different actions 485 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 15:06:30,563 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:06:53,202 INFO L232 lantSequenceWeakener]: Weakened 305 states. On average, predicates are now at 78.02% of their original sizes. [2018-09-15 15:06:53,204 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:06:53,366 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:06:53,367 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:06:53,367 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 15:06:53,367 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:06:53,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 15:06:53,368 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 15:06:53,368 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-09-15 15:06:53,369 INFO L87 Difference]: Start difference. First operand 2599 states and 2983 transitions. Second operand 13 states. [2018-09-15 15:07:04,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:07:04,567 INFO L93 Difference]: Finished difference Result 3649 states and 4955 transitions. [2018-09-15 15:07:04,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 15:07:04,568 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 308 [2018-09-15 15:07:04,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:07:04,584 INFO L225 Difference]: With dead ends: 3649 [2018-09-15 15:07:04,584 INFO L226 Difference]: Without dead ends: 3221 [2018-09-15 15:07:04,589 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 316 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-15 15:07:04,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3221 states. [2018-09-15 15:07:04,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3221 to 3218. [2018-09-15 15:07:04,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3218 states. [2018-09-15 15:07:04,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 3620 transitions. [2018-09-15 15:07:04,678 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 3620 transitions. Word has length 308 [2018-09-15 15:07:04,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:07:04,679 INFO L480 AbstractCegarLoop]: Abstraction has 3218 states and 3620 transitions. [2018-09-15 15:07:04,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-15 15:07:04,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 3620 transitions. [2018-09-15 15:07:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-09-15 15:07:04,688 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:07:04,688 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, 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] [2018-09-15 15:07:04,689 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:07:04,689 INFO L82 PathProgramCache]: Analyzing trace with hash -670424668, now seen corresponding path program 1 times [2018-09-15 15:07:04,689 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:07:04,690 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 345 with the following transitions: [2018-09-15 15:07:04,691 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], [489], [497], [505], [513], [521], [525], [527], [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] [2018-09-15 15:07:04,697 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:07:04,697 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown