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_label22_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 03:27:14,786 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 03:27:14,790 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 03:27:14,808 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 03:27:14,809 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 03:27:14,810 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 03:27:14,811 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 03:27:14,813 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 03:27:14,816 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 03:27:14,818 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 03:27:14,819 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 03:27:14,821 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 03:27:14,821 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 03:27:14,824 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 03:27:14,825 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 03:27:14,826 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 03:27:14,827 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 03:27:14,828 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 03:27:14,830 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 03:27:14,832 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 03:27:14,833 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 03:27:14,834 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 03:27:14,836 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 03:27:14,843 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 03:27:14,843 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 03:27:14,844 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 03:27:14,845 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 03:27:14,845 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 03:27:14,860 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 03:27:14,860 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 03:27:14,861 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 03:27:14,862 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 03:27:14,862 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 03:27:14,862 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 03:27:14,862 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 03:27:14,862 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 03:27:14,862 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 03:27:14,863 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 03:27:14,863 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 03:27:14,863 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 03:27:14,864 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 03:27:14,864 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 03:27:14,864 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 03:27:14,864 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 03:27:14,864 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 03:27:14,865 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 03:27:14,865 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 03:27:14,865 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 03:27:14,865 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 03:27:14,865 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 03:27:14,866 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 03:27:14,866 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 03:27:14,866 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:27:14,866 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 03:27:14,866 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 03:27:14,867 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 03:27:14,867 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 03:27:14,867 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 03:27:14,867 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 03:27:14,867 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 03:27:14,867 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 03:27:14,868 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 03:27:14,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 03:27:14,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 03:27:14,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 03:27:14,952 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 03:27:14,953 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 03:27:14,953 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label22_true-unreach-call.c [2018-09-19 03:27:15,314 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea9dff55e/535adff9b65940c1b10f40157853cb88/FLAGc2c957019 [2018-09-19 03:27:15,607 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 03:27:15,608 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label22_true-unreach-call.c [2018-09-19 03:27:15,632 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea9dff55e/535adff9b65940c1b10f40157853cb88/FLAGc2c957019 [2018-09-19 03:27:15,650 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea9dff55e/535adff9b65940c1b10f40157853cb88 [2018-09-19 03:27:15,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 03:27:15,663 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 03:27:15,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 03:27:15,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 03:27:15,676 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 03:27:15,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:27:15" (1/1) ... [2018-09-19 03:27:15,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afab507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:15, skipping insertion in model container [2018-09-19 03:27:15,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:27:15" (1/1) ... [2018-09-19 03:27:15,693 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 03:27:16,188 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:27:16,207 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 03:27:16,303 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:27:16,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16 WrapperNode [2018-09-19 03:27:16,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 03:27:16,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 03:27:16,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 03:27:16,365 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 03:27:16,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 03:27:16,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 03:27:16,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 03:27:16,488 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 03:27:16,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 03:27:16,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 03:27:16,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 03:27:16,807 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 03:27:16,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (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 03:27:16,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 03:27:16,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 03:27:16,891 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 03:27:16,891 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 03:27:16,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 03:27:16,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 03:27:16,892 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 03:27:16,892 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 03:27:20,397 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 03:27:20,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:27:20 BoogieIcfgContainer [2018-09-19 03:27:20,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 03:27:20,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 03:27:20,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 03:27:20,403 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 03:27:20,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:27:15" (1/3) ... [2018-09-19 03:27:20,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae446a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:27:20, skipping insertion in model container [2018-09-19 03:27:20,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (2/3) ... [2018-09-19 03:27:20,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae446a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:27:20, skipping insertion in model container [2018-09-19 03:27:20,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:27:20" (3/3) ... [2018-09-19 03:27:20,408 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label22_true-unreach-call.c [2018-09-19 03:27:20,417 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 03:27:20,428 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 03:27:20,491 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 03:27:20,492 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 03:27:20,493 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 03:27:20,493 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 03:27:20,493 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 03:27:20,493 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 03:27:20,493 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 03:27:20,494 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 03:27:20,494 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 03:27:20,533 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 03:27:20,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-19 03:27:20,542 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:20,543 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:27:20,544 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:20,550 INFO L82 PathProgramCache]: Analyzing trace with hash 625689180, now seen corresponding path program 1 times [2018-09-19 03:27:20,553 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:20,555 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-09-19 03:27:20,559 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], [249], [253], [255], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 03:27:20,631 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:20,631 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:22,115 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:22,117 INFO L272 AbstractInterpreter]: Visited 43 different actions 43 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 03:27:22,133 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:22,771 INFO L232 lantSequenceWeakener]: Weakened 42 states. On average, predicates are now at 75.4% of their original sizes. [2018-09-19 03:27:22,772 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:23,069 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:23,071 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:23,071 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 03:27:23,071 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:23,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 03:27:23,086 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 03:27:23,087 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:27:23,090 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 03:27:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:26,356 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 03:27:26,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 03:27:26,359 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-09-19 03:27:26,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:26,376 INFO L225 Difference]: With dead ends: 576 [2018-09-19 03:27:26,376 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 03:27:26,384 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 43 GetRequests, 39 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 03:27:26,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 03:27:26,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 03:27:26,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 03:27:26,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 03:27:26,461 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 44 [2018-09-19 03:27:26,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:26,463 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 03:27:26,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 03:27:26,464 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 03:27:26,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-09-19 03:27:26,472 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:26,473 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:27:26,473 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:26,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1967158933, now seen corresponding path program 1 times [2018-09-19 03:27:26,477 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:26,477 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-09-19 03:27:26,478 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], [249], [253], [255], [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 03:27:26,489 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:26,492 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:28,141 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:27:31,218 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:31,218 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 03:27:31,247 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:32,343 INFO L232 lantSequenceWeakener]: Weakened 113 states. On average, predicates are now at 73.8% of their original sizes. [2018-09-19 03:27:32,344 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:33,031 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:33,031 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:33,031 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:27:33,032 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:33,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:27:33,033 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:27:33,033 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:27:33,034 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 03:27:40,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:40,948 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 03:27:40,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 03:27:40,953 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 115 [2018-09-19 03:27:40,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:40,958 INFO L225 Difference]: With dead ends: 717 [2018-09-19 03:27:40,958 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 03:27:40,962 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 03:27:40,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 03:27:40,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 03:27:40,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 03:27:40,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 659 transitions. [2018-09-19 03:27:40,998 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 659 transitions. Word has length 115 [2018-09-19 03:27:40,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:40,999 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 659 transitions. [2018-09-19 03:27:41,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:27:41,000 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 659 transitions. [2018-09-19 03:27:41,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-09-19 03:27:41,003 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:41,004 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:27:41,004 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:41,004 INFO L82 PathProgramCache]: Analyzing trace with hash -344279760, now seen corresponding path program 1 times [2018-09-19 03:27:41,004 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:41,005 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 125 with the following transitions: [2018-09-19 03:27:41,005 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], [249], [253], [255], [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 03:27:41,010 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:41,011 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:46,530 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:27:48,525 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:48,526 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 03:27:48,533 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:49,602 INFO L232 lantSequenceWeakener]: Weakened 122 states. On average, predicates are now at 73.72% of their original sizes. [2018-09-19 03:27:49,603 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:51,169 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:51,169 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:51,170 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:27:51,170 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:51,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:27:51,171 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:27:51,171 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:27:51,172 INFO L87 Difference]: Start difference. First operand 505 states and 659 transitions. Second operand 13 states. [2018-09-19 03:28:02,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:02,575 INFO L93 Difference]: Finished difference Result 1333 states and 2076 transitions. [2018-09-19 03:28:02,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 03:28:02,578 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 124 [2018-09-19 03:28:02,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:02,586 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 03:28:02,586 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 03:28:02,588 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 138 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 03:28:02,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 03:28:02,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 03:28:02,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 03:28:02,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 943 transitions. [2018-09-19 03:28:02,650 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 943 transitions. Word has length 124 [2018-09-19 03:28:02,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:02,651 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 943 transitions. [2018-09-19 03:28:02,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:28:02,651 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 943 transitions. [2018-09-19 03:28:02,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-09-19 03:28:02,655 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:02,656 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:28:02,656 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:02,657 INFO L82 PathProgramCache]: Analyzing trace with hash -679371352, now seen corresponding path program 1 times [2018-09-19 03:28:02,657 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:02,657 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 161 with the following transitions: [2018-09-19 03:28:02,658 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], [249], [253], [255], [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 03:28:02,664 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:02,664 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:05,785 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:13,323 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:13,323 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 03:28:13,336 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:14,452 INFO L232 lantSequenceWeakener]: Weakened 158 states. On average, predicates are now at 73.5% of their original sizes. [2018-09-19 03:28:14,453 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:14,825 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:14,826 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:14,826 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:28:14,826 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:14,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:28:14,827 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:28:14,827 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:28:14,828 INFO L87 Difference]: Start difference. First operand 762 states and 943 transitions. Second operand 12 states. [2018-09-19 03:28:25,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:25,099 INFO L93 Difference]: Finished difference Result 1677 states and 2200 transitions. [2018-09-19 03:28:25,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:28:25,104 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 160 [2018-09-19 03:28:25,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:25,112 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 03:28:25,112 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 03:28:25,114 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 168 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-19 03:28:25,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 03:28:25,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 03:28:25,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 03:28:25,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1277 transitions. [2018-09-19 03:28:25,156 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1277 transitions. Word has length 160 [2018-09-19 03:28:25,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:25,157 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1277 transitions. [2018-09-19 03:28:25,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:28:25,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1277 transitions. [2018-09-19 03:28:25,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-09-19 03:28:25,161 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:25,162 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:28:25,162 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:25,162 INFO L82 PathProgramCache]: Analyzing trace with hash 606530795, now seen corresponding path program 1 times [2018-09-19 03:28:25,162 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:25,163 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-09-19 03:28:25,163 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], [249], [253], [255], [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 03:28:25,169 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:25,169 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:35,778 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:35,779 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 03:28:35,783 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:36,929 INFO L232 lantSequenceWeakener]: Weakened 177 states. On average, predicates are now at 73.41% of their original sizes. [2018-09-19 03:28:36,930 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:37,371 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:37,371 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:37,372 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:28:37,372 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:37,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:28:37,372 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:28:37,372 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:28:37,373 INFO L87 Difference]: Start difference. First operand 1056 states and 1277 transitions. Second operand 12 states. [2018-09-19 03:28:41,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:41,350 INFO L93 Difference]: Finished difference Result 2268 states and 2879 transitions. [2018-09-19 03:28:41,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 03:28:41,352 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 179 [2018-09-19 03:28:41,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:41,360 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 03:28:41,361 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 03:28:41,364 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 188 GetRequests, 168 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 03:28:41,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 03:28:41,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 03:28:41,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 03:28:41,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1605 transitions. [2018-09-19 03:28:41,422 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1605 transitions. Word has length 179 [2018-09-19 03:28:41,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:41,423 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1605 transitions. [2018-09-19 03:28:41,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:28:41,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1605 transitions. [2018-09-19 03:28:41,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-09-19 03:28:41,426 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:41,426 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:28:41,427 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:41,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1994263801, now seen corresponding path program 1 times [2018-09-19 03:28:41,427 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:41,427 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 192 with the following transitions: [2018-09-19 03:28:41,428 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], [249], [253], [255], [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 03:28:41,438 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:41,439 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:42,968 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:48,947 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:48,948 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 03:28:48,954 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:50,117 INFO L232 lantSequenceWeakener]: Weakened 189 states. On average, predicates are now at 73.42% of their original sizes. [2018-09-19 03:28:50,118 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:50,451 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:50,451 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:50,451 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:28:50,451 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:50,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:28:50,452 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:28:50,452 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:28:50,452 INFO L87 Difference]: Start difference. First operand 1352 states and 1605 transitions. Second operand 10 states. [2018-09-19 03:28:59,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:59,305 INFO L93 Difference]: Finished difference Result 2719 states and 3368 transitions. [2018-09-19 03:28:59,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:28:59,307 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 191 [2018-09-19 03:28:59,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:59,318 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 03:28:59,318 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 03:28:59,323 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 198 GetRequests, 182 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 03:28:59,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 03:28:59,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 03:28:59,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 03:28:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1772 transitions. [2018-09-19 03:28:59,387 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1772 transitions. Word has length 191 [2018-09-19 03:28:59,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:59,387 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1772 transitions. [2018-09-19 03:28:59,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:28:59,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1772 transitions. [2018-09-19 03:28:59,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-09-19 03:28:59,393 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:59,393 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:28:59,393 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:59,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1673424808, now seen corresponding path program 1 times [2018-09-19 03:28:59,394 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:59,394 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-09-19 03:28:59,394 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], [249], [253], [255], [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 03:28:59,398 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:59,398 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:03,150 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:29:07,326 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:29:07,326 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 03:29:07,334 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:29:08,436 INFO L232 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 73.38% of their original sizes. [2018-09-19 03:29:08,437 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:08,872 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:29:08,872 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:29:08,872 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:29:08,872 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:29:08,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:29:08,873 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:29:08,873 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:29:08,874 INFO L87 Difference]: Start difference. First operand 1503 states and 1772 transitions. Second operand 13 states. [2018-09-19 03:29:18,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:29:18,224 INFO L93 Difference]: Finished difference Result 3686 states and 4637 transitions. [2018-09-19 03:29:18,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:29:18,225 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 202 [2018-09-19 03:29:18,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:29:18,236 INFO L225 Difference]: With dead ends: 3686 [2018-09-19 03:29:18,236 INFO L226 Difference]: Without dead ends: 2337 [2018-09-19 03:29:18,241 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 214 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:29:18,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2018-09-19 03:29:18,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2189. [2018-09-19 03:29:18,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2018-09-19 03:29:18,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2615 transitions. [2018-09-19 03:29:18,324 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2615 transitions. Word has length 202 [2018-09-19 03:29:18,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:29:18,325 INFO L480 AbstractCegarLoop]: Abstraction has 2189 states and 2615 transitions. [2018-09-19 03:29:18,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:29:18,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2615 transitions. [2018-09-19 03:29:18,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-09-19 03:29:18,330 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:29:18,330 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:29:18,330 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:29:18,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1805242740, now seen corresponding path program 1 times [2018-09-19 03:29:18,331 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:29:18,331 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-09-19 03:29:18,331 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], [249], [253], [255], [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 03:29:18,334 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:29:18,335 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:22,106 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:29:37,639 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:29:37,639 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 03:29:37,646 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:29:39,165 INFO L232 lantSequenceWeakener]: Weakened 210 states. On average, predicates are now at 73.35% of their original sizes. [2018-09-19 03:29:39,166 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:39,662 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:29:39,662 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:29:39,663 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:29:39,663 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:29:39,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:29:39,664 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:29:39,664 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:29:39,664 INFO L87 Difference]: Start difference. First operand 2189 states and 2615 transitions. Second operand 13 states. [2018-09-19 03:29:50,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:29:50,653 INFO L93 Difference]: Finished difference Result 5360 states and 6747 transitions. [2018-09-19 03:29:50,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:29:50,654 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 212 [2018-09-19 03:29:50,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:29:50,669 INFO L225 Difference]: With dead ends: 5360 [2018-09-19 03:29:50,670 INFO L226 Difference]: Without dead ends: 3325 [2018-09-19 03:29:50,677 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 224 GetRequests, 200 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 03:29:50,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2018-09-19 03:29:50,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 3019. [2018-09-19 03:29:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3019 states. [2018-09-19 03:29:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 3715 transitions. [2018-09-19 03:29:50,802 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 3715 transitions. Word has length 212 [2018-09-19 03:29:50,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:29:50,802 INFO L480 AbstractCegarLoop]: Abstraction has 3019 states and 3715 transitions. [2018-09-19 03:29:50,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:29:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 3715 transitions. [2018-09-19 03:29:50,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-09-19 03:29:50,808 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:29:50,808 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:29:50,808 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:29:50,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1541672056, now seen corresponding path program 1 times [2018-09-19 03:29:50,809 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:29:50,809 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 229 with the following transitions: [2018-09-19 03:29:50,809 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], [249], [253], [255], [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 03:29:50,813 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:29:50,813 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:52,468 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:30:02,824 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:30:02,825 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 03:30:02,830 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:30:04,081 INFO L232 lantSequenceWeakener]: Weakened 226 states. On average, predicates are now at 73.31% of their original sizes. [2018-09-19 03:30:04,081 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:30:04,538 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:30:04,538 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:30:04,538 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:30:04,539 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:30:04,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:30:04,539 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:30:04,539 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:30:04,540 INFO L87 Difference]: Start difference. First operand 3019 states and 3715 transitions. Second operand 13 states. [2018-09-19 03:30:14,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:30:14,866 INFO L93 Difference]: Finished difference Result 6300 states and 8063 transitions. [2018-09-19 03:30:14,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:30:14,867 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 228 [2018-09-19 03:30:14,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:30:14,885 INFO L225 Difference]: With dead ends: 6300 [2018-09-19 03:30:14,885 INFO L226 Difference]: Without dead ends: 3435 [2018-09-19 03:30:14,895 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 240 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:30:14,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2018-09-19 03:30:15,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3305. [2018-09-19 03:30:15,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3305 states. [2018-09-19 03:30:15,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4062 transitions. [2018-09-19 03:30:15,018 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4062 transitions. Word has length 228 [2018-09-19 03:30:15,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:30:15,019 INFO L480 AbstractCegarLoop]: Abstraction has 3305 states and 4062 transitions. [2018-09-19 03:30:15,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:30:15,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4062 transitions. [2018-09-19 03:30:15,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-09-19 03:30:15,026 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:30:15,026 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:30:15,026 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:30:15,027 INFO L82 PathProgramCache]: Analyzing trace with hash 234562235, now seen corresponding path program 1 times [2018-09-19 03:30:15,027 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:30:15,027 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-09-19 03:30:15,027 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], [249], [253], [255], [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 03:30:15,031 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:30:15,031 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:30:18,088 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:30:30,536 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:30:30,536 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 03:30:30,546 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:30:31,830 INFO L232 lantSequenceWeakener]: Weakened 231 states. On average, predicates are now at 73.29% of their original sizes. [2018-09-19 03:30:31,830 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:30:32,112 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:30:32,112 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:30:32,113 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:30:32,113 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:30:32,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:30:32,113 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:30:32,113 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:30:32,114 INFO L87 Difference]: Start difference. First operand 3305 states and 4062 transitions. Second operand 10 states. [2018-09-19 03:30:39,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:30:39,288 INFO L93 Difference]: Finished difference Result 6634 states and 8307 transitions. [2018-09-19 03:30:39,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:30:39,289 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 233 [2018-09-19 03:30:39,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:30:39,306 INFO L225 Difference]: With dead ends: 6634 [2018-09-19 03:30:39,306 INFO L226 Difference]: Without dead ends: 3483 [2018-09-19 03:30:39,315 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 240 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 03:30:39,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2018-09-19 03:30:39,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3457. [2018-09-19 03:30:39,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3457 states. [2018-09-19 03:30:39,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 4260 transitions. [2018-09-19 03:30:39,441 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 4260 transitions. Word has length 233 [2018-09-19 03:30:39,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:30:39,441 INFO L480 AbstractCegarLoop]: Abstraction has 3457 states and 4260 transitions. [2018-09-19 03:30:39,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:30:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 4260 transitions. [2018-09-19 03:30:39,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-09-19 03:30:39,448 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:30:39,448 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:30:39,448 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:30:39,449 INFO L82 PathProgramCache]: Analyzing trace with hash -592071320, now seen corresponding path program 1 times [2018-09-19 03:30:39,449 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:30:39,449 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2018-09-19 03:30:39,450 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], [249], [253], [255], [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 03:30:39,453 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:30:39,453 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:30:44,058 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:30:57,481 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:30:57,481 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 03:30:57,490 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:30:59,099 INFO L232 lantSequenceWeakener]: Weakened 232 states. On average, predicates are now at 73.29% of their original sizes. [2018-09-19 03:30:59,099 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:30:59,844 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:30:59,845 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:30:59,845 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:30:59,845 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:30:59,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:30:59,845 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:30:59,846 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:30:59,846 INFO L87 Difference]: Start difference. First operand 3457 states and 4260 transitions. Second operand 13 states. [2018-09-19 03:31:07,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:31:07,624 INFO L93 Difference]: Finished difference Result 8601 states and 11011 transitions. [2018-09-19 03:31:07,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:31:07,625 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 234 [2018-09-19 03:31:07,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:31:07,650 INFO L225 Difference]: With dead ends: 8601 [2018-09-19 03:31:07,651 INFO L226 Difference]: Without dead ends: 5298 [2018-09-19 03:31:07,662 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 246 GetRequests, 222 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 03:31:07,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2018-09-19 03:31:07,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 4845. [2018-09-19 03:31:07,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4845 states. [2018-09-19 03:31:07,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4845 states to 4845 states and 6065 transitions. [2018-09-19 03:31:07,826 INFO L78 Accepts]: Start accepts. Automaton has 4845 states and 6065 transitions. Word has length 234 [2018-09-19 03:31:07,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:31:07,827 INFO L480 AbstractCegarLoop]: Abstraction has 4845 states and 6065 transitions. [2018-09-19 03:31:07,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:31:07,827 INFO L276 IsEmpty]: Start isEmpty. Operand 4845 states and 6065 transitions. [2018-09-19 03:31:07,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-09-19 03:31:07,835 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:31:07,835 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:31:07,835 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:31:07,836 INFO L82 PathProgramCache]: Analyzing trace with hash 927580888, now seen corresponding path program 1 times [2018-09-19 03:31:07,836 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:31:07,836 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 243 with the following transitions: [2018-09-19 03:31:07,836 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], [249], [253], [255], [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 03:31:07,840 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:31:07,840 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:31:10,711 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:31:27,548 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:31:27,549 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 03:31:27,554 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-19 03:31:28,828 INFO L232 lantSequenceWeakener]: Weakened 240 states. On average, predicates are now at 73.27% of their original sizes. [2018-09-19 03:31:28,828 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:31:28,844 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 03:31:28,848 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 03:31:28,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:31:28 BoogieIcfgContainer [2018-09-19 03:31:28,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 03:31:28,850 INFO L168 Benchmark]: Toolchain (without parser) took 253188.56 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -679.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-19 03:31:28,851 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 03:31:28,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.35 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:28,853 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:28,853 INFO L168 Benchmark]: Boogie Preprocessor took 318.97 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -849.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:28,854 INFO L168 Benchmark]: RCFGBuilder took 3591.14 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 98.3 MB). Peak memory consumption was 98.3 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:28,855 INFO L168 Benchmark]: TraceAbstraction took 248449.64 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-19 03:31:28,860 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 698.35 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 122.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 318.97 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -849.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3591.14 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 98.3 MB). Peak memory consumption was 98.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 248449.64 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 115). Cancelled while BasicCegarLoop was analyzing trace of length 243 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, 248.3s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 91.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2167 SDtfs, 11090 SDslu, 4661 SDs, 0 SdLazy, 25167 SolverSat, 2518 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 79.2s Time, PredicateUnifierStatistics: 22 DeclaredPredicates, 2020 GetRequests, 1808 SyntacticMatches, 0 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 887 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4845occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 135.2s AbstIntTime, 12 AbstIntIterations, 12 AbstIntStrong, 0.9941324459644117 AbsIntWeakeningRatio, 0.12825278810408922 AbsIntAvgWeakeningVarsNumRemoved, 890.4423791821562 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 1328 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label22_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_03-31-28-873.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label22_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_03-31-28-873.csv Completed graceful shutdown