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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label08_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 12:50:44,980 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 12:50:44,982 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 12:50:44,994 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 12:50:44,994 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 12:50:44,995 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 12:50:44,997 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 12:50:44,998 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 12:50:45,000 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 12:50:45,001 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 12:50:45,002 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 12:50:45,002 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 12:50:45,003 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 12:50:45,004 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 12:50:45,005 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 12:50:45,006 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 12:50:45,007 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 12:50:45,008 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 12:50:45,011 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 12:50:45,012 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 12:50:45,013 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 12:50:45,015 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 12:50:45,017 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 12:50:45,017 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 12:50:45,018 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 12:50:45,019 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 12:50:45,020 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 12:50:45,020 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 12:50:45,021 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 12:50:45,022 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 12:50:45,023 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 12:50:45,023 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 12:50:45,024 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 12:50:45,024 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 12:50:45,025 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 12:50:45,026 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 12:50:45,026 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-19 12:50:45,042 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 12:50:45,042 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 12:50:45,043 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 12:50:45,043 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 12:50:45,043 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 12:50:45,043 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 12:50:45,044 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 12:50:45,044 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 12:50:45,044 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 12:50:45,044 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 12:50:45,044 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 12:50:45,044 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 12:50:45,045 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 12:50:45,045 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 12:50:45,045 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 12:50:45,046 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 12:50:45,046 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 12:50:45,046 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 12:50:45,046 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 12:50:45,046 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 12:50:45,047 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 12:50:45,047 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 12:50:45,047 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 12:50:45,047 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 12:50:45,048 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 12:50:45,048 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 12:50:45,048 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 12:50:45,048 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 12:50:45,048 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 12:50:45,049 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 12:50:45,049 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 12:50:45,049 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 12:50:45,049 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 12:50:45,049 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 12:50:45,096 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 12:50:45,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 12:50:45,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 12:50:45,113 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 12:50:45,114 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 12:50:45,115 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label08_true-unreach-call.c [2018-09-19 12:50:45,468 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97e4b890f/62c9b34637ae4beea58a2486c5d9483c/FLAG1234f0c67 [2018-09-19 12:50:45,981 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 12:50:45,982 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label08_true-unreach-call.c [2018-09-19 12:50:46,022 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97e4b890f/62c9b34637ae4beea58a2486c5d9483c/FLAG1234f0c67 [2018-09-19 12:50:46,038 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97e4b890f/62c9b34637ae4beea58a2486c5d9483c [2018-09-19 12:50:46,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 12:50:46,052 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 12:50:46,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 12:50:46,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 12:50:46,061 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 12:50:46,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:50:46" (1/1) ... [2018-09-19 12:50:46,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d736107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:46, skipping insertion in model container [2018-09-19 12:50:46,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:50:46" (1/1) ... [2018-09-19 12:50:46,080 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 12:50:47,556 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:50:47,578 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 12:50:48,321 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:50:48,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:48 WrapperNode [2018-09-19 12:50:48,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 12:50:48,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 12:50:48,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 12:50:48,776 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 12:50:48,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:48" (1/1) ... [2018-09-19 12:50:48,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:48" (1/1) ... [2018-09-19 12:50:49,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 12:50:49,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 12:50:49,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 12:50:49,072 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 12:50:49,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:48" (1/1) ... [2018-09-19 12:50:49,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:48" (1/1) ... [2018-09-19 12:50:49,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:48" (1/1) ... [2018-09-19 12:50:49,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:48" (1/1) ... [2018-09-19 12:50:50,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:48" (1/1) ... [2018-09-19 12:50:50,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:48" (1/1) ... [2018-09-19 12:50:50,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:48" (1/1) ... [2018-09-19 12:50:50,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 12:50:50,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 12:50:50,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 12:50:50,302 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 12:50:50,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:48" (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 12:50:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 12:50:50,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 12:50:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 12:50:50,377 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 12:50:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 12:50:50,377 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 12:50:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 12:50:50,378 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 12:50:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 12:50:50,378 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 12:50:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 12:50:50,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 12:50:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 12:50:50,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 12:51:01,366 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 12:51:01,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:51:01 BoogieIcfgContainer [2018-09-19 12:51:01,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 12:51:01,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 12:51:01,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 12:51:01,371 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 12:51:01,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 12:50:46" (1/3) ... [2018-09-19 12:51:01,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44136062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:51:01, skipping insertion in model container [2018-09-19 12:51:01,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:48" (2/3) ... [2018-09-19 12:51:01,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44136062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:51:01, skipping insertion in model container [2018-09-19 12:51:01,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:51:01" (3/3) ... [2018-09-19 12:51:01,374 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label08_true-unreach-call.c [2018-09-19 12:51:01,385 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 12:51:01,395 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 12:51:01,460 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 12:51:01,461 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 12:51:01,461 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 12:51:01,462 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 12:51:01,462 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 12:51:01,462 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 12:51:01,462 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 12:51:01,462 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 12:51:01,462 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 12:51:01,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-19 12:51:01,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-09-19 12:51:01,517 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:01,518 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:51:01,519 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:01,524 INFO L82 PathProgramCache]: Analyzing trace with hash 332151899, now seen corresponding path program 1 times [2018-09-19 12:51:01,526 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:01,527 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 58 with the following transitions: [2018-09-19 12:51:01,529 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2983], [2985], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-19 12:51:01,573 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:01,573 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:01,994 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:51:01,996 INFO L272 AbstractInterpreter]: Visited 56 different actions 56 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 12:51:02,047 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:51:02,277 INFO L232 lantSequenceWeakener]: Weakened 54 states. On average, predicates are now at 73.02% of their original sizes. [2018-09-19 12:51:02,277 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:51:02,479 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:51:02,482 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:51:02,483 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 12:51:02,483 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:51:02,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 12:51:02,496 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 12:51:02,497 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:51:02,501 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-19 12:51:18,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:51:18,319 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-19 12:51:18,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 12:51:18,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-09-19 12:51:18,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:51:18,357 INFO L225 Difference]: With dead ends: 3044 [2018-09-19 12:51:18,357 INFO L226 Difference]: Without dead ends: 1922 [2018-09-19 12:51:18,369 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:51:18,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-19 12:51:18,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-19 12:51:18,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-19 12:51:18,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-19 12:51:18,523 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 57 [2018-09-19 12:51:18,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:51:18,524 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-19 12:51:18,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 12:51:18,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-19 12:51:18,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-09-19 12:51:18,533 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:18,534 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:51:18,534 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:18,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1246735848, now seen corresponding path program 1 times [2018-09-19 12:51:18,535 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:18,535 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 159 with the following transitions: [2018-09-19 12:51:18,536 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2983], [2985], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:51:18,543 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:18,543 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:18,883 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:51:18,884 INFO L272 AbstractInterpreter]: Visited 108 different actions 311 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:51:18,929 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:51:19,272 INFO L232 lantSequenceWeakener]: Weakened 155 states. On average, predicates are now at 71.65% of their original sizes. [2018-09-19 12:51:19,274 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:51:19,726 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:51:19,726 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:51:19,727 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:51:19,727 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:51:19,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:51:19,728 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:51:19,729 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:51:19,729 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-19 12:51:45,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:51:45,584 INFO L93 Difference]: Finished difference Result 3841 states and 6447 transitions. [2018-09-19 12:51:45,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:51:45,586 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2018-09-19 12:51:45,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:51:45,601 INFO L225 Difference]: With dead ends: 3841 [2018-09-19 12:51:45,602 INFO L226 Difference]: Without dead ends: 2731 [2018-09-19 12:51:45,606 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 164 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:51:45,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2018-09-19 12:51:45,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2726. [2018-09-19 12:51:45,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-19 12:51:45,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3662 transitions. [2018-09-19 12:51:45,681 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3662 transitions. Word has length 158 [2018-09-19 12:51:45,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:51:45,682 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3662 transitions. [2018-09-19 12:51:45,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:51:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3662 transitions. [2018-09-19 12:51:45,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-09-19 12:51:45,688 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:45,688 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:51:45,689 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:45,689 INFO L82 PathProgramCache]: Analyzing trace with hash -440333859, now seen corresponding path program 1 times [2018-09-19 12:51:45,689 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:45,689 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 188 with the following transitions: [2018-09-19 12:51:45,690 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2983], [2985], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:51:45,696 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:45,696 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:45,850 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:51:46,234 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:51:46,235 INFO L272 AbstractInterpreter]: Visited 137 different actions 398 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:51:46,269 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:51:46,735 INFO L232 lantSequenceWeakener]: Weakened 184 states. On average, predicates are now at 71.52% of their original sizes. [2018-09-19 12:51:46,735 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:51:46,997 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:51:46,997 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:51:46,997 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:51:46,998 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:51:46,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:51:46,999 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:51:46,999 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:51:46,999 INFO L87 Difference]: Start difference. First operand 2726 states and 3662 transitions. Second operand 10 states. [2018-09-19 12:51:58,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:51:58,381 INFO L93 Difference]: Finished difference Result 4658 states and 7291 transitions. [2018-09-19 12:51:58,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:51:58,383 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 187 [2018-09-19 12:51:58,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:51:58,511 INFO L225 Difference]: With dead ends: 4658 [2018-09-19 12:51:58,511 INFO L226 Difference]: Without dead ends: 3548 [2018-09-19 12:51:58,516 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 193 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:51:58,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2018-09-19 12:51:58,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3542. [2018-09-19 12:51:58,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3542 states. [2018-09-19 12:51:58,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 4500 transitions. [2018-09-19 12:51:58,606 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 4500 transitions. Word has length 187 [2018-09-19 12:51:58,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:51:58,607 INFO L480 AbstractCegarLoop]: Abstraction has 3542 states and 4500 transitions. [2018-09-19 12:51:58,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:51:58,607 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 4500 transitions. [2018-09-19 12:51:58,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-09-19 12:51:58,617 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:58,617 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 12:51:58,617 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:58,618 INFO L82 PathProgramCache]: Analyzing trace with hash -542865317, now seen corresponding path program 1 times [2018-09-19 12:51:58,618 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:58,618 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 253 with the following transitions: [2018-09-19 12:51:58,619 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2983], [2985], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:51:58,629 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:58,629 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:58,814 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:51:59,005 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:51:59,006 INFO L272 AbstractInterpreter]: Visited 109 different actions 423 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:51:59,049 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:51:59,443 INFO L232 lantSequenceWeakener]: Weakened 249 states. On average, predicates are now at 71.38% of their original sizes. [2018-09-19 12:51:59,444 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:51:59,750 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:51:59,750 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:51:59,750 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:51:59,750 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:51:59,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:51:59,751 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:51:59,751 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:51:59,752 INFO L87 Difference]: Start difference. First operand 3542 states and 4500 transitions. Second operand 10 states. [2018-09-19 12:52:17,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:52:17,818 INFO L93 Difference]: Finished difference Result 6286 states and 8969 transitions. [2018-09-19 12:52:17,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:52:17,825 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 252 [2018-09-19 12:52:17,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:52:17,844 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 12:52:17,844 INFO L226 Difference]: Without dead ends: 4360 [2018-09-19 12:52:17,852 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 258 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:52:17,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2018-09-19 12:52:17,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 4349. [2018-09-19 12:52:17,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4349 states. [2018-09-19 12:52:17,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4349 states to 4349 states and 5346 transitions. [2018-09-19 12:52:17,974 INFO L78 Accepts]: Start accepts. Automaton has 4349 states and 5346 transitions. Word has length 252 [2018-09-19 12:52:17,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:52:17,976 INFO L480 AbstractCegarLoop]: Abstraction has 4349 states and 5346 transitions. [2018-09-19 12:52:17,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:52:17,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4349 states and 5346 transitions. [2018-09-19 12:52:17,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-09-19 12:52:17,981 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:52:17,982 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:52:17,982 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:52:17,982 INFO L82 PathProgramCache]: Analyzing trace with hash 814441843, now seen corresponding path program 1 times [2018-09-19 12:52:17,983 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:52:17,983 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 265 with the following transitions: [2018-09-19 12:52:17,983 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2983], [2985], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:52:17,988 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:52:17,989 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:52:18,178 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:52:18,468 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:52:18,468 INFO L272 AbstractInterpreter]: Visited 114 different actions 554 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:52:18,506 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:52:19,076 INFO L232 lantSequenceWeakener]: Weakened 261 states. On average, predicates are now at 71.35% of their original sizes. [2018-09-19 12:52:19,076 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:52:19,257 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:52:19,258 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:52:19,258 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:52:19,258 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:52:19,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:52:19,259 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:52:19,259 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:52:19,259 INFO L87 Difference]: Start difference. First operand 4349 states and 5346 transitions. Second operand 10 states. [2018-09-19 12:52:41,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:52:41,292 INFO L93 Difference]: Finished difference Result 7115 states and 9845 transitions. [2018-09-19 12:52:41,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 12:52:41,294 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 264 [2018-09-19 12:52:41,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:52:41,314 INFO L225 Difference]: With dead ends: 7115 [2018-09-19 12:52:41,314 INFO L226 Difference]: Without dead ends: 5189 [2018-09-19 12:52:41,320 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 271 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:52:41,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5189 states. [2018-09-19 12:52:41,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5189 to 5167. [2018-09-19 12:52:41,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5167 states. [2018-09-19 12:52:41,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 6284 transitions. [2018-09-19 12:52:41,413 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 6284 transitions. Word has length 264 [2018-09-19 12:52:41,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:52:41,414 INFO L480 AbstractCegarLoop]: Abstraction has 5167 states and 6284 transitions. [2018-09-19 12:52:41,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:52:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 6284 transitions. [2018-09-19 12:52:41,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-09-19 12:52:41,419 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:52:41,419 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:52:41,420 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:52:41,420 INFO L82 PathProgramCache]: Analyzing trace with hash -311464300, now seen corresponding path program 1 times [2018-09-19 12:52:41,420 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:52:41,420 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 281 with the following transitions: [2018-09-19 12:52:41,421 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2983], [2985], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3572], [3576], [3580], [3591], [3595], [3599], [3603], [3614], [3618], [3622], [3626], [3630], [3634], [3638], [3642], [3646], [3650], [3654], [3658], [3662], [3666], [3670], [3674], [3678], [3682], [3686], [3690], [3694], [3698], [3709], [3713], [3717], [3721], [3725], [3729], [3733], [3737], [3741], [3745], [3749], [3753], [3757], [3768], [3772], [3776], [3780], [3784], [3788], [3792], [3796], [3800], [3804], [3815], [3819], [3823], [3827], [3831], [3835], [3839], [3843], [3847], [3851], [3862], [3865], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:52:41,426 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:52:41,426 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:52:41,695 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:52:42,345 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:52:42,346 INFO L272 AbstractInterpreter]: Visited 230 different actions 677 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:52:42,377 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:52:42,976 INFO L232 lantSequenceWeakener]: Weakened 277 states. On average, predicates are now at 71.29% of their original sizes. [2018-09-19 12:52:42,977 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:52:43,151 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:52:43,152 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:52:43,152 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:52:43,152 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:52:43,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:52:43,153 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:52:43,153 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:52:43,153 INFO L87 Difference]: Start difference. First operand 5167 states and 6284 transitions. Second operand 10 states. [2018-09-19 12:53:01,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:01,909 INFO L93 Difference]: Finished difference Result 9545 states and 12511 transitions. [2018-09-19 12:53:01,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:53:01,910 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 280 [2018-09-19 12:53:01,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:01,935 INFO L225 Difference]: With dead ends: 9545 [2018-09-19 12:53:01,935 INFO L226 Difference]: Without dead ends: 6800 [2018-09-19 12:53:01,943 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 286 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:53:01,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6800 states. [2018-09-19 12:53:02,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6800 to 6794. [2018-09-19 12:53:02,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6794 states. [2018-09-19 12:53:02,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 7947 transitions. [2018-09-19 12:53:02,062 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 7947 transitions. Word has length 280 [2018-09-19 12:53:02,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:02,063 INFO L480 AbstractCegarLoop]: Abstraction has 6794 states and 7947 transitions. [2018-09-19 12:53:02,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:02,063 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 7947 transitions. [2018-09-19 12:53:02,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-09-19 12:53:02,069 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:02,069 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 12:53:02,069 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:02,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1937538090, now seen corresponding path program 1 times [2018-09-19 12:53:02,070 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:02,070 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 289 with the following transitions: [2018-09-19 12:53:02,070 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2983], [2985], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:02,074 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:02,074 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:02,214 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:02,671 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:02,671 INFO L272 AbstractInterpreter]: Visited 138 different actions 675 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:53:02,712 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:03,154 INFO L232 lantSequenceWeakener]: Weakened 285 states. On average, predicates are now at 71.31% of their original sizes. [2018-09-19 12:53:03,155 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:03,270 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:03,271 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:03,271 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:03,271 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:03,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:03,272 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:03,272 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:03,272 INFO L87 Difference]: Start difference. First operand 6794 states and 7947 transitions. Second operand 10 states. [2018-09-19 12:53:16,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:16,447 INFO L93 Difference]: Finished difference Result 13654 states and 16856 transitions. [2018-09-19 12:53:16,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:53:16,448 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 288 [2018-09-19 12:53:16,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:16,473 INFO L225 Difference]: With dead ends: 13654 [2018-09-19 12:53:16,473 INFO L226 Difference]: Without dead ends: 9279 [2018-09-19 12:53:16,484 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 295 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:53:16,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9279 states. [2018-09-19 12:53:16,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9279 to 9252. [2018-09-19 12:53:16,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9252 states. [2018-09-19 12:53:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9252 states to 9252 states and 10537 transitions. [2018-09-19 12:53:16,630 INFO L78 Accepts]: Start accepts. Automaton has 9252 states and 10537 transitions. Word has length 288 [2018-09-19 12:53:16,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:16,631 INFO L480 AbstractCegarLoop]: Abstraction has 9252 states and 10537 transitions. [2018-09-19 12:53:16,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:16,631 INFO L276 IsEmpty]: Start isEmpty. Operand 9252 states and 10537 transitions. [2018-09-19 12:53:16,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2018-09-19 12:53:16,638 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:16,639 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:53:16,639 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:16,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1301716654, now seen corresponding path program 1 times [2018-09-19 12:53:16,639 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:16,640 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 331 with the following transitions: [2018-09-19 12:53:16,640 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2983], [2985], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3159], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:16,643 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:16,643 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:16,835 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:18,292 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:18,292 INFO L272 AbstractInterpreter]: Visited 110 different actions 647 times. Merged at 8 different actions 42 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:53:18,312 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:18,848 INFO L232 lantSequenceWeakener]: Weakened 327 states. On average, predicates are now at 71.27% of their original sizes. [2018-09-19 12:53:18,848 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:18,943 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:18,944 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:18,944 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:18,944 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:18,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:18,945 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:18,945 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:18,945 INFO L87 Difference]: Start difference. First operand 9252 states and 10537 transitions. Second operand 10 states. [2018-09-19 12:53:30,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:30,477 INFO L93 Difference]: Finished difference Result 15294 states and 18522 transitions. [2018-09-19 12:53:30,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:53:30,478 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 330 [2018-09-19 12:53:30,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:30,502 INFO L225 Difference]: With dead ends: 15294 [2018-09-19 12:53:30,503 INFO L226 Difference]: Without dead ends: 10085 [2018-09-19 12:53:30,513 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 336 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:53:30,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10085 states. [2018-09-19 12:53:30,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10085 to 10061. [2018-09-19 12:53:30,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10061 states. [2018-09-19 12:53:30,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 11413 transitions. [2018-09-19 12:53:30,659 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 11413 transitions. Word has length 330 [2018-09-19 12:53:30,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:30,660 INFO L480 AbstractCegarLoop]: Abstraction has 10061 states and 11413 transitions. [2018-09-19 12:53:30,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:30,660 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 11413 transitions. [2018-09-19 12:53:30,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2018-09-19 12:53:30,667 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:30,668 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:53:30,668 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:30,668 INFO L82 PathProgramCache]: Analyzing trace with hash -405589310, now seen corresponding path program 1 times [2018-09-19 12:53:30,668 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:30,669 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 341 with the following transitions: [2018-09-19 12:53:30,669 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2983], [2985], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:30,672 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:30,672 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:30,832 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:31,235 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:31,235 INFO L272 AbstractInterpreter]: Visited 115 different actions 675 times. Merged at 8 different actions 40 times. Widened at 1 different actions 1 times. Found 9 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:53:31,244 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:31,697 INFO L232 lantSequenceWeakener]: Weakened 337 states. On average, predicates are now at 71.26% of their original sizes. [2018-09-19 12:53:31,698 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:31,802 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:31,803 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:31,803 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:31,803 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:31,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:31,804 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:31,804 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:31,804 INFO L87 Difference]: Start difference. First operand 10061 states and 11413 transitions. Second operand 10 states. [2018-09-19 12:53:51,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:51,615 INFO L93 Difference]: Finished difference Result 17756 states and 21202 transitions. [2018-09-19 12:53:51,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:53:51,616 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 340 [2018-09-19 12:53:51,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:51,646 INFO L225 Difference]: With dead ends: 17756 [2018-09-19 12:53:51,646 INFO L226 Difference]: Without dead ends: 11734 [2018-09-19 12:53:51,659 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 347 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:53:51,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2018-09-19 12:53:51,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11704. [2018-09-19 12:53:51,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11704 states. [2018-09-19 12:53:51,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11704 states to 11704 states and 13240 transitions. [2018-09-19 12:53:51,841 INFO L78 Accepts]: Start accepts. Automaton has 11704 states and 13240 transitions. Word has length 340 [2018-09-19 12:53:51,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:51,842 INFO L480 AbstractCegarLoop]: Abstraction has 11704 states and 13240 transitions. [2018-09-19 12:53:51,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:51,842 INFO L276 IsEmpty]: Start isEmpty. Operand 11704 states and 13240 transitions. [2018-09-19 12:53:51,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2018-09-19 12:53:51,850 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:51,851 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:53:51,851 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:51,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1430651115, now seen corresponding path program 1 times [2018-09-19 12:53:51,851 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:51,852 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 356 with the following transitions: [2018-09-19 12:53:51,852 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2983], [2985], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3210], [3213], [3217], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:51,854 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:51,855 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:51,998 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:52,565 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:52,565 INFO L272 AbstractInterpreter]: Visited 117 different actions 679 times. Merged at 8 different actions 40 times. Widened at 1 different actions 1 times. Found 8 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:53:52,605 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:53,105 INFO L232 lantSequenceWeakener]: Weakened 352 states. On average, predicates are now at 71.3% of their original sizes. [2018-09-19 12:53:53,105 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:53,807 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:53,807 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:53,807 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 12:53:53,807 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:53,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 12:53:53,808 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 12:53:53,808 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-09-19 12:53:53,808 INFO L87 Difference]: Start difference. First operand 11704 states and 13240 transitions. Second operand 12 states. [2018-09-19 12:54:32,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:54:32,780 INFO L93 Difference]: Finished difference Result 22751 states and 29077 transitions. [2018-09-19 12:54:32,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-19 12:54:32,781 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 355 [2018-09-19 12:54:32,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:54:32,813 INFO L225 Difference]: With dead ends: 22751 [2018-09-19 12:54:32,813 INFO L226 Difference]: Without dead ends: 15901 [2018-09-19 12:54:32,828 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 380 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=220, Invalid=1186, Unknown=0, NotChecked=0, Total=1406 [2018-09-19 12:54:32,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15901 states. [2018-09-19 12:54:33,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15901 to 15812. [2018-09-19 12:54:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15812 states. [2018-09-19 12:54:33,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15812 states to 15812 states and 18058 transitions. [2018-09-19 12:54:33,048 INFO L78 Accepts]: Start accepts. Automaton has 15812 states and 18058 transitions. Word has length 355 [2018-09-19 12:54:33,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:54:33,049 INFO L480 AbstractCegarLoop]: Abstraction has 15812 states and 18058 transitions. [2018-09-19 12:54:33,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 12:54:33,049 INFO L276 IsEmpty]: Start isEmpty. Operand 15812 states and 18058 transitions. [2018-09-19 12:54:33,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-09-19 12:54:33,057 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:54:33,058 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:54:33,058 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:54:33,058 INFO L82 PathProgramCache]: Analyzing trace with hash 716366502, now seen corresponding path program 1 times [2018-09-19 12:54:33,058 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:54:33,059 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 359 with the following transitions: [2018-09-19 12:54:33,059 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2983], [2985], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:54:33,061 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:54:33,061 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:54:33,189 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:54:33,458 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:54:33,458 INFO L272 AbstractInterpreter]: Visited 115 different actions 680 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 11 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:54:33,482 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:54:33,945 INFO L232 lantSequenceWeakener]: Weakened 355 states. On average, predicates are now at 71.24% of their original sizes. [2018-09-19 12:54:33,946 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:54:34,051 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:54:34,051 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:54:34,051 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:54:34,052 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:54:34,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:54:34,052 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:54:34,052 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:54:34,053 INFO L87 Difference]: Start difference. First operand 15812 states and 18058 transitions. Second operand 10 states. [2018-09-19 12:54:48,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:54:48,037 INFO L93 Difference]: Finished difference Result 27654 states and 32817 transitions. [2018-09-19 12:54:48,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:54:48,037 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 358 [2018-09-19 12:54:48,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:54:48,070 INFO L225 Difference]: With dead ends: 27654 [2018-09-19 12:54:48,070 INFO L226 Difference]: Without dead ends: 16696 Received shutdown request... [2018-09-19 12:54:48,091 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 365 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:54:48,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16696 states. [2018-09-19 12:54:48,103 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 12:54:48,107 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 12:54:48,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 12:54:48 BoogieIcfgContainer [2018-09-19 12:54:48,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 12:54:48,108 INFO L168 Benchmark]: Toolchain (without parser) took 242058.84 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -860.2 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-19 12:54:48,110 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 12:54:48,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2721.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2018-09-19 12:54:48,111 INFO L168 Benchmark]: Boogie Procedure Inliner took 296.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:54:48,112 INFO L168 Benchmark]: Boogie Preprocessor took 1229.39 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 996.1 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:54:48,113 INFO L168 Benchmark]: RCFGBuilder took 11064.96 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 162.5 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -20.8 MB). Peak memory consumption was 757.7 MB. Max. memory is 7.1 GB. [2018-09-19 12:54:48,114 INFO L168 Benchmark]: TraceAbstraction took 226740.04 ms. Allocated memory was 2.7 GB in the beginning and 3.8 GB in the end (delta: 1.2 GB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 87.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-19 12:54:48,119 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 2721.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 296.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1229.39 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 996.1 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11064.96 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 162.5 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -20.8 MB). Peak memory consumption was 757.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226740.04 ms. Allocated memory was 2.7 GB in the beginning and 3.8 GB in the end (delta: 1.2 GB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 87.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 162]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 162). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 226.6s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 209.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13177 SDtfs, 30214 SDslu, 10619 SDs, 0 SdLazy, 131907 SolverSat, 9949 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 180.5s Time, PredicateUnifierStatistics: 22 DeclaredPredicates, 2951 GetRequests, 2772 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15812occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.4s AbstIntTime, 11 AbstIntIterations, 11 AbstIntStrong, 0.9974471861340165 AbsIntWeakeningRatio, 0.10286913925822254 AbsIntAvgWeakeningVarsNumRemoved, 23.46256123163051 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 222 StatesRemovedByMinimization, 10 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/Problem13_label08_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_12-54-48-134.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label08_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_12-54-48-134.csv Completed graceful shutdown