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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label03_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 03:21:23,636 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 03:21:23,638 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 03:21:23,655 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 03:21:23,655 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 03:21:23,656 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 03:21:23,657 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 03:21:23,659 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 03:21:23,661 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 03:21:23,662 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 03:21:23,662 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 03:21:23,663 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 03:21:23,664 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 03:21:23,665 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 03:21:23,666 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 03:21:23,667 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 03:21:23,668 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 03:21:23,669 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 03:21:23,671 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 03:21:23,673 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 03:21:23,674 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 03:21:23,675 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 03:21:23,677 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 03:21:23,686 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 03:21:23,711 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 03:21:23,712 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 03:21:23,713 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 03:21:23,713 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 03:21:23,713 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 03:21:23,713 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 03:21:23,713 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 03:21:23,714 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 03:21:23,714 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 03:21:23,714 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 03:21:23,714 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 03:21:23,714 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 03:21:23,715 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 03:21:23,715 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 03:21:23,716 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 03:21:23,716 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 03:21:23,716 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 03:21:23,717 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 03:21:23,717 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 03:21:23,717 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 03:21:23,717 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 03:21:23,717 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 03:21:23,717 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 03:21:23,718 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 03:21:23,718 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:21:23,718 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 03:21:23,718 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 03:21:23,720 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 03:21:23,720 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 03:21:23,720 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 03:21:23,720 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 03:21:23,721 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 03:21:23,721 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 03:21:23,721 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 03:21:23,767 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 03:21:23,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 03:21:23,783 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 03:21:23,785 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 03:21:23,785 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 03:21:23,786 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label03_true-unreach-call.c [2018-09-19 03:21:24,129 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/244529b56/4bf1f1f79d7742719b58eebcc037431f/FLAGa50b63fc1 [2018-09-19 03:21:24,372 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 03:21:24,372 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label03_true-unreach-call.c [2018-09-19 03:21:24,397 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/244529b56/4bf1f1f79d7742719b58eebcc037431f/FLAGa50b63fc1 [2018-09-19 03:21:24,422 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/244529b56/4bf1f1f79d7742719b58eebcc037431f [2018-09-19 03:21:24,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 03:21:24,437 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 03:21:24,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 03:21:24,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 03:21:24,450 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 03:21:24,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:21:24" (1/1) ... [2018-09-19 03:21:24,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a6b79aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:24, skipping insertion in model container [2018-09-19 03:21:24,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:21:24" (1/1) ... [2018-09-19 03:21:24,468 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 03:21:24,987 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:21:25,009 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 03:21:25,107 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:21:25,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:25 WrapperNode [2018-09-19 03:21:25,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 03:21:25,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 03:21:25,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 03:21:25,177 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 03:21:25,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:25" (1/1) ... [2018-09-19 03:21:25,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:25" (1/1) ... [2018-09-19 03:21:25,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 03:21:25,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 03:21:25,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 03:21:25,289 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 03:21:25,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:25" (1/1) ... [2018-09-19 03:21:25,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:25" (1/1) ... [2018-09-19 03:21:25,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:25" (1/1) ... [2018-09-19 03:21:25,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:25" (1/1) ... [2018-09-19 03:21:25,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:25" (1/1) ... [2018-09-19 03:21:25,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:25" (1/1) ... [2018-09-19 03:21:25,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:25" (1/1) ... [2018-09-19 03:21:25,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 03:21:25,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 03:21:25,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 03:21:25,550 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 03:21:25,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:25" (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 03:21:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 03:21:25,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 03:21:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 03:21:25,627 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 03:21:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 03:21:25,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 03:21:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 03:21:25,628 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 03:21:28,814 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 03:21:28,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:21:28 BoogieIcfgContainer [2018-09-19 03:21:28,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 03:21:28,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 03:21:28,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 03:21:28,819 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 03:21:28,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:21:24" (1/3) ... [2018-09-19 03:21:28,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5389b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:21:28, skipping insertion in model container [2018-09-19 03:21:28,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:21:25" (2/3) ... [2018-09-19 03:21:28,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5389b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:21:28, skipping insertion in model container [2018-09-19 03:21:28,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:21:28" (3/3) ... [2018-09-19 03:21:28,824 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label03_true-unreach-call.c [2018-09-19 03:21:28,835 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 03:21:28,845 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 03:21:28,901 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 03:21:28,902 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 03:21:28,902 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 03:21:28,902 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 03:21:28,902 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 03:21:28,902 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 03:21:28,903 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 03:21:28,903 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 03:21:28,903 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 03:21:28,941 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 03:21:28,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-19 03:21:28,950 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:21:28,951 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:21:28,953 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:21:28,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1405656705, now seen corresponding path program 1 times [2018-09-19 03:21:28,962 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:21:28,963 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 44 with the following transitions: [2018-09-19 03:21:28,967 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 03:21:29,063 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:21:29,063 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:21:30,407 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:21:30,408 INFO L272 AbstractInterpreter]: Visited 42 different actions 42 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 03:21:30,424 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:21:30,973 INFO L232 lantSequenceWeakener]: Weakened 41 states. On average, predicates are now at 75.36% of their original sizes. [2018-09-19 03:21:30,973 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:21:31,297 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:21:31,300 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:21:31,300 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 03:21:31,300 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:21:31,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 03:21:31,317 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 03:21:31,318 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:21:31,321 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 03:21:34,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:21:34,654 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 03:21:34,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 03:21:34,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-09-19 03:21:34,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:21:34,687 INFO L225 Difference]: With dead ends: 576 [2018-09-19 03:21:34,687 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 03:21:34,701 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 38 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 03:21:34,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 03:21:34,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 03:21:34,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 03:21:34,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 03:21:34,778 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 43 [2018-09-19 03:21:34,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:21:34,779 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 03:21:34,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 03:21:34,779 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 03:21:34,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-09-19 03:21:34,785 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:21:34,785 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:21:34,786 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:21:34,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1018978157, now seen corresponding path program 1 times [2018-09-19 03:21:34,786 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:21:34,786 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 115 with the following transitions: [2018-09-19 03:21:34,787 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:21:34,793 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:21:34,794 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:21:36,496 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:21:39,834 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:21:39,835 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 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 03:21:39,842 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:21:40,833 INFO L232 lantSequenceWeakener]: Weakened 112 states. On average, predicates are now at 73.77% of their original sizes. [2018-09-19 03:21:40,833 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:21:41,436 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:21:41,436 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:21:41,436 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:21:41,436 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:21:41,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:21:41,438 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:21:41,438 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:21:41,438 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 03:21:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:21:46,984 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 03:21:46,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 03:21:46,986 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 114 [2018-09-19 03:21:46,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:21:46,992 INFO L225 Difference]: With dead ends: 717 [2018-09-19 03:21:46,992 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 03:21:46,995 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 120 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 03:21:46,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 03:21:47,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 03:21:47,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 03:21:47,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 659 transitions. [2018-09-19 03:21:47,035 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 659 transitions. Word has length 114 [2018-09-19 03:21:47,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:21:47,036 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 659 transitions. [2018-09-19 03:21:47,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:21:47,037 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 659 transitions. [2018-09-19 03:21:47,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-19 03:21:47,041 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:21:47,042 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:21:47,042 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:21:47,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1444484276, now seen corresponding path program 1 times [2018-09-19 03:21:47,043 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:21:47,043 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2018-09-19 03:21:47,043 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:21:47,048 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:21:47,048 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:21:51,597 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:21:53,761 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:21:53,761 INFO L272 AbstractInterpreter]: Visited 87 different actions 248 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 03:21:53,770 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:21:54,813 INFO L232 lantSequenceWeakener]: Weakened 121 states. On average, predicates are now at 73.69% of their original sizes. [2018-09-19 03:21:54,814 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:21:55,636 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:21:55,637 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:21:55,637 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:21:55,637 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:21:55,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:21:55,638 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:21:55,638 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:21:55,639 INFO L87 Difference]: Start difference. First operand 505 states and 659 transitions. Second operand 13 states. [2018-09-19 03:22:04,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:22:04,346 INFO L93 Difference]: Finished difference Result 1333 states and 2076 transitions. [2018-09-19 03:22:04,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 03:22:04,349 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 123 [2018-09-19 03:22:04,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:22:04,356 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 03:22:04,356 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 03:22:04,358 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 03:22:04,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 03:22:04,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 03:22:04,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 03:22:04,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 943 transitions. [2018-09-19 03:22:04,403 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 943 transitions. Word has length 123 [2018-09-19 03:22:04,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:22:04,404 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 943 transitions. [2018-09-19 03:22:04,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:22:04,404 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 943 transitions. [2018-09-19 03:22:04,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-09-19 03:22:04,412 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:22:04,412 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:22:04,412 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:22:04,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1342877780, now seen corresponding path program 1 times [2018-09-19 03:22:04,413 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:22:04,413 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 160 with the following transitions: [2018-09-19 03:22:04,413 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:22:04,419 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:22:04,419 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:22:07,726 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:22:15,020 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:22:15,020 INFO L272 AbstractInterpreter]: Visited 123 different actions 356 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 03:22:15,025 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:22:16,381 INFO L232 lantSequenceWeakener]: Weakened 157 states. On average, predicates are now at 73.47% of their original sizes. [2018-09-19 03:22:16,382 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:22:16,985 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:22:16,985 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:22:16,986 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:22:16,986 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:22:16,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:22:16,987 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:22:16,987 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:22:16,987 INFO L87 Difference]: Start difference. First operand 762 states and 943 transitions. Second operand 12 states. [2018-09-19 03:22:22,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:22:22,719 INFO L93 Difference]: Finished difference Result 1677 states and 2200 transitions. [2018-09-19 03:22:22,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:22:22,720 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 159 [2018-09-19 03:22:22,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:22:22,726 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 03:22:22,726 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 03:22:22,729 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 167 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-19 03:22:22,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 03:22:22,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 03:22:22,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 03:22:22,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1277 transitions. [2018-09-19 03:22:22,771 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1277 transitions. Word has length 159 [2018-09-19 03:22:22,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:22:22,772 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1277 transitions. [2018-09-19 03:22:22,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:22:22,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1277 transitions. [2018-09-19 03:22:22,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-09-19 03:22:22,776 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:22:22,777 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:22:22,777 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:22:22,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1331084013, now seen corresponding path program 1 times [2018-09-19 03:22:22,777 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:22:22,778 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 179 with the following transitions: [2018-09-19 03:22:22,778 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:22:22,786 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:22:22,787 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:22:33,058 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:22:33,058 INFO L272 AbstractInterpreter]: Visited 142 different actions 413 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 03:22:33,062 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:22:34,271 INFO L232 lantSequenceWeakener]: Weakened 176 states. On average, predicates are now at 73.39% of their original sizes. [2018-09-19 03:22:34,271 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:22:34,658 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:22:34,658 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:22:34,659 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:22:34,659 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:22:34,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:22:34,660 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:22:34,660 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:22:34,660 INFO L87 Difference]: Start difference. First operand 1056 states and 1277 transitions. Second operand 12 states. [2018-09-19 03:22:40,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:22:40,194 INFO L93 Difference]: Finished difference Result 2268 states and 2879 transitions. [2018-09-19 03:22:40,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 03:22:40,195 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 178 [2018-09-19 03:22:40,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:22:40,203 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 03:22:40,203 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 03:22:40,207 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 187 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 03:22:40,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 03:22:40,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 03:22:40,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 03:22:40,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1605 transitions. [2018-09-19 03:22:40,281 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1605 transitions. Word has length 178 [2018-09-19 03:22:40,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:22:40,282 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1605 transitions. [2018-09-19 03:22:40,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:22:40,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1605 transitions. [2018-09-19 03:22:40,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-09-19 03:22:40,287 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:22:40,287 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:22:40,288 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:22:40,288 INFO L82 PathProgramCache]: Analyzing trace with hash -975903850, now seen corresponding path program 1 times [2018-09-19 03:22:40,288 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:22:40,289 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-09-19 03:22:40,289 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:22:40,302 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:22:40,303 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:22:42,029 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:22:47,170 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:22:47,170 INFO L272 AbstractInterpreter]: Visited 84 different actions 323 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 03:22:47,174 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:22:48,285 INFO L232 lantSequenceWeakener]: Weakened 188 states. On average, predicates are now at 73.4% of their original sizes. [2018-09-19 03:22:48,286 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:22:48,629 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:22:48,629 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:22:48,630 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:22:48,630 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:22:48,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:22:48,631 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:22:48,631 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:22:48,631 INFO L87 Difference]: Start difference. First operand 1352 states and 1605 transitions. Second operand 10 states. [2018-09-19 03:22:56,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:22:56,209 INFO L93 Difference]: Finished difference Result 2719 states and 3368 transitions. [2018-09-19 03:22:56,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:22:56,211 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2018-09-19 03:22:56,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:22:56,220 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 03:22:56,220 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 03:22:56,224 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 197 GetRequests, 181 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 03:22:56,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 03:22:56,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 03:22:56,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 03:22:56,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1772 transitions. [2018-09-19 03:22:56,287 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1772 transitions. Word has length 190 [2018-09-19 03:22:56,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:22:56,288 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1772 transitions. [2018-09-19 03:22:56,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:22:56,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1772 transitions. [2018-09-19 03:22:56,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-09-19 03:22:56,291 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:22:56,292 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:22:56,292 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:22:56,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1029393779, now seen corresponding path program 1 times [2018-09-19 03:22:56,292 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:22:56,293 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-09-19 03:22:56,293 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:22:56,296 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:22:56,296 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:22:59,983 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:23:04,087 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:23:04,088 INFO L272 AbstractInterpreter]: Visited 88 different actions 341 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 03:23:04,089 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:23:05,371 INFO L232 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 73.36% of their original sizes. [2018-09-19 03:23:05,372 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:23:05,834 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:23:05,834 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:23:05,834 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:23:05,835 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:23:05,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:23:05,835 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:23:05,835 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:23:05,836 INFO L87 Difference]: Start difference. First operand 1503 states and 1772 transitions. Second operand 13 states. [2018-09-19 03:23:14,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:23:14,533 INFO L93 Difference]: Finished difference Result 3686 states and 4637 transitions. [2018-09-19 03:23:14,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:23:14,540 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 201 [2018-09-19 03:23:14,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:23:14,554 INFO L225 Difference]: With dead ends: 3686 [2018-09-19 03:23:14,555 INFO L226 Difference]: Without dead ends: 2337 [2018-09-19 03:23:14,560 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 213 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:23:14,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2018-09-19 03:23:14,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2189. [2018-09-19 03:23:14,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2018-09-19 03:23:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2615 transitions. [2018-09-19 03:23:14,655 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2615 transitions. Word has length 201 [2018-09-19 03:23:14,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:23:14,657 INFO L480 AbstractCegarLoop]: Abstraction has 2189 states and 2615 transitions. [2018-09-19 03:23:14,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:23:14,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2615 transitions. [2018-09-19 03:23:14,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-09-19 03:23:14,661 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:23:14,661 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:23:14,662 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:23:14,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1417352025, now seen corresponding path program 1 times [2018-09-19 03:23:14,662 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:23:14,662 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-09-19 03:23:14,663 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:23:14,666 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:23:14,666 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:23:18,183 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:23:32,230 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:23:32,230 INFO L272 AbstractInterpreter]: Visited 96 different actions 555 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:23:32,240 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:23:33,714 INFO L232 lantSequenceWeakener]: Weakened 209 states. On average, predicates are now at 73.33% of their original sizes. [2018-09-19 03:23:33,715 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:23:34,149 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:23:34,149 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:23:34,150 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:23:34,150 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:23:34,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:23:34,150 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:23:34,151 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:23:34,151 INFO L87 Difference]: Start difference. First operand 2189 states and 2615 transitions. Second operand 13 states. [2018-09-19 03:23:45,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:23:45,567 INFO L93 Difference]: Finished difference Result 5360 states and 6747 transitions. [2018-09-19 03:23:45,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:23:45,568 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 211 [2018-09-19 03:23:45,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:23:45,582 INFO L225 Difference]: With dead ends: 5360 [2018-09-19 03:23:45,582 INFO L226 Difference]: Without dead ends: 3325 [2018-09-19 03:23:45,588 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 223 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:23:45,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2018-09-19 03:23:45,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 3019. [2018-09-19 03:23:45,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3019 states. [2018-09-19 03:23:45,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 3715 transitions. [2018-09-19 03:23:45,696 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 3715 transitions. Word has length 211 [2018-09-19 03:23:45,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:23:45,702 INFO L480 AbstractCegarLoop]: Abstraction has 3019 states and 3715 transitions. [2018-09-19 03:23:45,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:23:45,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 3715 transitions. [2018-09-19 03:23:45,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-09-19 03:23:45,707 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:23:45,707 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:23:45,708 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:23:45,708 INFO L82 PathProgramCache]: Analyzing trace with hash 652203189, now seen corresponding path program 1 times [2018-09-19 03:23:45,708 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:23:45,708 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-09-19 03:23:45,709 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:23:45,712 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:23:45,712 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:23:46,989 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:23:57,254 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:23:57,254 INFO L272 AbstractInterpreter]: Visited 121 different actions 471 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 03:23:57,264 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:23:58,498 INFO L232 lantSequenceWeakener]: Weakened 225 states. On average, predicates are now at 73.29% of their original sizes. [2018-09-19 03:23:58,498 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:23:58,981 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:23:58,981 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:23:58,982 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:23:58,982 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:23:58,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:23:58,982 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:23:58,983 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:23:58,983 INFO L87 Difference]: Start difference. First operand 3019 states and 3715 transitions. Second operand 13 states. [2018-09-19 03:24:06,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:24:06,593 INFO L93 Difference]: Finished difference Result 6300 states and 8063 transitions. [2018-09-19 03:24:06,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:24:06,598 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 227 [2018-09-19 03:24:06,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:24:06,611 INFO L225 Difference]: With dead ends: 6300 [2018-09-19 03:24:06,611 INFO L226 Difference]: Without dead ends: 3435 [2018-09-19 03:24:06,619 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:24:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2018-09-19 03:24:06,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3305. [2018-09-19 03:24:06,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3305 states. [2018-09-19 03:24:06,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4062 transitions. [2018-09-19 03:24:06,736 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4062 transitions. Word has length 227 [2018-09-19 03:24:06,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:24:06,737 INFO L480 AbstractCegarLoop]: Abstraction has 3305 states and 4062 transitions. [2018-09-19 03:24:06,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:24:06,737 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4062 transitions. [2018-09-19 03:24:06,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-09-19 03:24:06,745 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:24:06,745 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:24:06,745 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:24:06,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1611377340, now seen corresponding path program 1 times [2018-09-19 03:24:06,746 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:24:06,746 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 233 with the following transitions: [2018-09-19 03:24:06,746 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:24:06,749 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:24:06,750 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:24:09,552 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:24:21,613 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:24:21,613 INFO L272 AbstractInterpreter]: Visited 124 different actions 603 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 03:24:21,622 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:24:22,859 INFO L232 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 73.28% of their original sizes. [2018-09-19 03:24:22,860 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:24:23,149 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:24:23,150 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:24:23,150 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:24:23,150 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:24:23,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:24:23,151 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:24:23,151 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:24:23,151 INFO L87 Difference]: Start difference. First operand 3305 states and 4062 transitions. Second operand 10 states. [2018-09-19 03:24:27,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:24:27,414 INFO L93 Difference]: Finished difference Result 6634 states and 8307 transitions. [2018-09-19 03:24:27,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:24:27,416 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 232 [2018-09-19 03:24:27,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:24:27,429 INFO L225 Difference]: With dead ends: 6634 [2018-09-19 03:24:27,430 INFO L226 Difference]: Without dead ends: 3483 [2018-09-19 03:24:27,437 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 223 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 03:24:27,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2018-09-19 03:24:27,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3457. [2018-09-19 03:24:27,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3457 states. [2018-09-19 03:24:27,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 4260 transitions. [2018-09-19 03:24:27,551 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 4260 transitions. Word has length 232 [2018-09-19 03:24:27,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:24:27,552 INFO L480 AbstractCegarLoop]: Abstraction has 3457 states and 4260 transitions. [2018-09-19 03:24:27,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:24:27,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 4260 transitions. [2018-09-19 03:24:27,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-09-19 03:24:27,558 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:24:27,558 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:27,558 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:24:27,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1618094157, now seen corresponding path program 1 times [2018-09-19 03:24:27,559 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:24:27,559 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-09-19 03:24:27,559 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:24:27,562 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:24:27,563 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:24:32,204 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:24:44,933 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:24:44,933 INFO L272 AbstractInterpreter]: Visited 118 different actions 687 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:24:44,939 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:24:46,554 INFO L232 lantSequenceWeakener]: Weakened 231 states. On average, predicates are now at 73.27% of their original sizes. [2018-09-19 03:24:46,555 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:24:47,284 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:24:47,285 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:24:47,285 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:24:47,285 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:24:47,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:24:47,285 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:24:47,286 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:24:47,286 INFO L87 Difference]: Start difference. First operand 3457 states and 4260 transitions. Second operand 13 states. [2018-09-19 03:24:54,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:24:54,802 INFO L93 Difference]: Finished difference Result 8601 states and 11011 transitions. [2018-09-19 03:24:54,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:24:54,804 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 233 [2018-09-19 03:24:54,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:24:54,825 INFO L225 Difference]: With dead ends: 8601 [2018-09-19 03:24:54,826 INFO L226 Difference]: Without dead ends: 5298 [2018-09-19 03:24:54,835 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 245 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:24:54,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2018-09-19 03:24:54,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 4845. [2018-09-19 03:24:54,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4845 states. [2018-09-19 03:24:54,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4845 states to 4845 states and 6065 transitions. [2018-09-19 03:24:54,981 INFO L78 Accepts]: Start accepts. Automaton has 4845 states and 6065 transitions. Word has length 233 [2018-09-19 03:24:54,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:24:54,982 INFO L480 AbstractCegarLoop]: Abstraction has 4845 states and 6065 transitions. [2018-09-19 03:24:54,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:24:54,982 INFO L276 IsEmpty]: Start isEmpty. Operand 4845 states and 6065 transitions. [2018-09-19 03:24:54,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-09-19 03:24:54,989 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:24:54,989 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:54,990 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:24:54,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1772666429, now seen corresponding path program 1 times [2018-09-19 03:24:54,990 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:24:54,990 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-09-19 03:24:54,991 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:24:54,994 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:24:54,994 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:24:57,777 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:25:13,138 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:25:13,139 INFO L272 AbstractInterpreter]: Visited 124 different actions 723 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:25:13,145 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:25:14,397 INFO L232 lantSequenceWeakener]: Weakened 239 states. On average, predicates are now at 73.26% of their original sizes. [2018-09-19 03:25:14,398 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:25:14,735 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:25:14,735 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:25:14,735 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 03:25:14,736 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:25:14,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 03:25:14,736 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 03:25:14,737 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 03:25:14,737 INFO L87 Difference]: Start difference. First operand 4845 states and 6065 transitions. Second operand 11 states. [2018-09-19 03:25:19,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:25:19,954 INFO L93 Difference]: Finished difference Result 9755 states and 12399 transitions. [2018-09-19 03:25:19,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:25:19,956 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 241 [2018-09-19 03:25:19,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:25:19,975 INFO L225 Difference]: With dead ends: 9755 [2018-09-19 03:25:19,975 INFO L226 Difference]: Without dead ends: 5064 [2018-09-19 03:25:19,985 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 249 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 03:25:19,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5064 states. [2018-09-19 03:25:20,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5064 to 5004. [2018-09-19 03:25:20,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5004 states. [2018-09-19 03:25:20,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5004 states to 5004 states and 6279 transitions. [2018-09-19 03:25:20,152 INFO L78 Accepts]: Start accepts. Automaton has 5004 states and 6279 transitions. Word has length 241 [2018-09-19 03:25:20,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:25:20,153 INFO L480 AbstractCegarLoop]: Abstraction has 5004 states and 6279 transitions. [2018-09-19 03:25:20,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 03:25:20,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5004 states and 6279 transitions. [2018-09-19 03:25:20,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-09-19 03:25:20,164 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:25:20,164 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:25:20,165 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:25:20,165 INFO L82 PathProgramCache]: Analyzing trace with hash 538960288, now seen corresponding path program 1 times [2018-09-19 03:25:20,165 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:25:20,165 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-09-19 03:25:20,166 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [626], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:25:20,171 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:25:20,172 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:25:23,457 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:25:38,888 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:25:38,888 INFO L272 AbstractInterpreter]: Visited 124 different actions 723 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. Received shutdown request... [2018-09-19 03:25:38,896 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:25:40,293 INFO L232 lantSequenceWeakener]: Weakened 260 states. On average, predicates are now at 73.21% of their original sizes. [2018-09-19 03:25:40,293 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:25:40,320 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 03:25:40,324 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 03:25:40,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:25:40 BoogieIcfgContainer [2018-09-19 03:25:40,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 03:25:40,325 INFO L168 Benchmark]: Toolchain (without parser) took 255890.89 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 4.0 GB in the end (delta: -2.6 GB). Peak memory consumption was 106.0 MB. Max. memory is 7.1 GB. [2018-09-19 03:25:40,327 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 03:25:40,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 03:25:40,328 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 03:25:40,329 INFO L168 Benchmark]: Boogie Preprocessor took 261.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 785.4 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -873.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2018-09-19 03:25:40,330 INFO L168 Benchmark]: RCFGBuilder took 3264.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 7.1 GB. [2018-09-19 03:25:40,330 INFO L168 Benchmark]: TraceAbstraction took 251508.90 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 4.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2018-09-19 03:25:40,337 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 737.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 111.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 261.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 785.4 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -873.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3264.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 251508.90 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 4.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 112). Cancelled while BasicCegarLoop was analyzing trace of length 263 with TraceHistMax 3, 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 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 251.4s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 81.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2362 SDtfs, 12573 SDslu, 2722 SDs, 0 SdLazy, 19312 SolverSat, 2841 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 69.3s Time, PredicateUnifierStatistics: 24 DeclaredPredicates, 2258 GetRequests, 2028 SyntacticMatches, 0 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5004occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 147.1s AbstIntTime, 13 AbstIntIterations, 13 AbstIntStrong, 0.9942497608868509 AbsIntWeakeningRatio, 0.12578092461474386 AbsIntAvgWeakeningVarsNumRemoved, 890.8663057059558 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 1388 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label03_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_03-25-40-350.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label03_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_03-25-40-350.csv Completed graceful shutdown