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/Problem17_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 23:19:14,329 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 23:19:14,331 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 23:19:14,346 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 23:19:14,347 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 23:19:14,348 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 23:19:14,350 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 23:19:14,352 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 23:19:14,354 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 23:19:14,355 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 23:19:14,356 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 23:19:14,356 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 23:19:14,357 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 23:19:14,358 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 23:19:14,359 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 23:19:14,360 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 23:19:14,361 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 23:19:14,363 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 23:19:14,365 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 23:19:14,366 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 23:19:14,368 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 23:19:14,369 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 23:19:14,371 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 23:19:14,371 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 23:19:14,372 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 23:19:14,372 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 23:19:14,373 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 23:19:14,374 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 23:19:14,375 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 23:19:14,376 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 23:19:14,377 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 23:19:14,377 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 23:19:14,378 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 23:19:14,378 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 23:19:14,379 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 23:19:14,379 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 23:19:14,380 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 [2018-09-15 23:19:14,398 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 23:19:14,398 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 23:19:14,399 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 23:19:14,399 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 23:19:14,400 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 23:19:14,400 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 23:19:14,400 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 23:19:14,400 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 23:19:14,401 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 23:19:14,401 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 23:19:14,401 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 23:19:14,402 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 23:19:14,402 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 23:19:14,402 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 23:19:14,402 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 23:19:14,403 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 23:19:14,403 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 23:19:14,403 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 23:19:14,403 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 23:19:14,404 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 23:19:14,404 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 23:19:14,404 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 23:19:14,404 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 23:19:14,404 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 23:19:14,405 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 23:19:14,405 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 23:19:14,405 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 23:19:14,405 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 23:19:14,406 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 23:19:14,406 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 23:19:14,406 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 23:19:14,406 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 23:19:14,406 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 23:19:14,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 23:19:14,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 23:19:14,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 23:19:14,480 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 23:19:14,480 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 23:19:14,481 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c [2018-09-15 23:19:14,896 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/218c345be/01ffcc2379854bf4bd063a6ecb02983b/FLAG3cf754319 [2018-09-15 23:19:15,332 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 23:19:15,334 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c [2018-09-15 23:19:15,358 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/218c345be/01ffcc2379854bf4bd063a6ecb02983b/FLAG3cf754319 [2018-09-15 23:19:15,375 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/218c345be/01ffcc2379854bf4bd063a6ecb02983b [2018-09-15 23:19:15,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 23:19:15,391 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 23:19:15,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 23:19:15,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 23:19:15,401 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 23:19:15,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:19:15" (1/1) ... [2018-09-15 23:19:15,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c5c827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:15, skipping insertion in model container [2018-09-15 23:19:15,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:19:15" (1/1) ... [2018-09-15 23:19:15,419 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 23:19:16,386 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 23:19:16,407 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 23:19:17,106 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 23:19:17,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:17 WrapperNode [2018-09-15 23:19:17,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 23:19:17,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 23:19:17,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 23:19:17,328 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 23:19:17,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:17" (1/1) ... [2018-09-15 23:19:17,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:17" (1/1) ... [2018-09-15 23:19:17,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 23:19:17,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 23:19:17,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 23:19:17,599 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 23:19:18,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:17" (1/1) ... [2018-09-15 23:19:18,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:17" (1/1) ... [2018-09-15 23:19:18,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:17" (1/1) ... [2018-09-15 23:19:18,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:17" (1/1) ... [2018-09-15 23:19:18,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:17" (1/1) ... [2018-09-15 23:19:18,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:17" (1/1) ... [2018-09-15 23:19:18,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:17" (1/1) ... [2018-09-15 23:19:18,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 23:19:18,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 23:19:18,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 23:19:18,625 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 23:19:18,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 23:19:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 23:19:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 23:19:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 23:19:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 23:19:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 23:19:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 23:19:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 23:19:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 23:19:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 23:19:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 23:19:31,287 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 23:19:31,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:19:31 BoogieIcfgContainer [2018-09-15 23:19:31,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 23:19:31,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 23:19:31,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 23:19:31,295 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 23:19:31,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:19:15" (1/3) ... [2018-09-15 23:19:31,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb7cbe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:19:31, skipping insertion in model container [2018-09-15 23:19:31,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:19:17" (2/3) ... [2018-09-15 23:19:31,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb7cbe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:19:31, skipping insertion in model container [2018-09-15 23:19:31,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:19:31" (3/3) ... [2018-09-15 23:19:31,299 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label01_true-unreach-call.c [2018-09-15 23:19:31,309 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 23:19:31,320 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 23:19:31,384 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 23:19:31,385 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 23:19:31,385 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 23:19:31,385 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 23:19:31,386 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 23:19:31,386 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 23:19:31,386 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 23:19:31,386 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 23:19:31,386 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 23:19:31,428 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-15 23:19:31,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-15 23:19:31,445 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:19:31,447 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] [2018-09-15 23:19:31,448 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:19:31,454 INFO L82 PathProgramCache]: Analyzing trace with hash -412274706, now seen corresponding path program 1 times [2018-09-15 23:19:31,456 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:19:31,458 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 54 with the following transitions: [2018-09-15 23:19:31,460 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [2283], [2287], [2293], [2297], [2306], [2307], [2308], [2310] [2018-09-15 23:19:31,509 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:19:31,509 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:19:32,952 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:19:32,954 INFO L272 AbstractInterpreter]: Visited 52 different actions 52 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 23:19:33,010 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:19:33,756 INFO L232 lantSequenceWeakener]: Weakened 50 states. On average, predicates are now at 77.34% of their original sizes. [2018-09-15 23:19:33,757 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:19:33,988 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:19:33,989 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:19:33,989 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 23:19:33,990 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:19:33,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 23:19:34,002 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 23:19:34,003 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 23:19:34,005 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-09-15 23:19:44,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:19:44,739 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-09-15 23:19:44,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 23:19:44,741 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2018-09-15 23:19:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:19:44,766 INFO L225 Difference]: With dead ends: 1642 [2018-09-15 23:19:44,767 INFO L226 Difference]: Without dead ends: 1036 [2018-09-15 23:19:44,776 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 23:19:44,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-09-15 23:19:44,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-09-15 23:19:44,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-09-15 23:19:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-09-15 23:19:44,910 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 53 [2018-09-15 23:19:44,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:19:44,910 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-09-15 23:19:44,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 23:19:44,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-09-15 23:19:44,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-09-15 23:19:44,918 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:19:44,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 23:19:44,919 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:19:44,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1326175065, now seen corresponding path program 1 times [2018-09-15 23:19:44,919 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:19:44,919 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-09-15 23:19:44,920 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 23:19:44,925 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:19:44,925 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:19:52,109 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:19:59,688 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:19:59,688 INFO L272 AbstractInterpreter]: Visited 82 different actions 157 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 23:19:59,694 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:20:07,204 INFO L232 lantSequenceWeakener]: Weakened 125 states. On average, predicates are now at 76.03% of their original sizes. [2018-09-15 23:20:07,205 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:20:07,425 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:20:07,425 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:20:07,425 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 23:20:07,426 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:20:07,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 23:20:07,429 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 23:20:07,429 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 23:20:07,430 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 11 states. [2018-09-15 23:20:24,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:20:24,865 INFO L93 Difference]: Finished difference Result 2502 states and 4301 transitions. [2018-09-15 23:20:24,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 23:20:24,867 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 128 [2018-09-15 23:20:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:20:24,880 INFO L225 Difference]: With dead ends: 2502 [2018-09-15 23:20:24,880 INFO L226 Difference]: Without dead ends: 1908 [2018-09-15 23:20:24,883 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 23:20:24,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2018-09-15 23:20:24,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1905. [2018-09-15 23:20:24,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1905 states. [2018-09-15 23:20:24,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2402 transitions. [2018-09-15 23:20:24,939 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2402 transitions. Word has length 128 [2018-09-15 23:20:24,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:20:24,940 INFO L480 AbstractCegarLoop]: Abstraction has 1905 states and 2402 transitions. [2018-09-15 23:20:24,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 23:20:24,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2402 transitions. [2018-09-15 23:20:24,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-09-15 23:20:24,945 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:20:24,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 23:20:24,946 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:20:24,946 INFO L82 PathProgramCache]: Analyzing trace with hash 89172255, now seen corresponding path program 1 times [2018-09-15 23:20:24,946 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:20:24,946 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-09-15 23:20:24,947 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 23:20:24,951 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:20:24,951 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:20:29,146 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:20:38,513 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:20:38,514 INFO L272 AbstractInterpreter]: Visited 95 different actions 184 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 23:20:38,522 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:20:48,971 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 75.94% of their original sizes. [2018-09-15 23:20:48,972 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:20:49,107 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:20:49,107 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:20:49,108 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 23:20:49,108 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:20:49,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 23:20:49,109 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 23:20:49,109 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 23:20:49,109 INFO L87 Difference]: Start difference. First operand 1905 states and 2402 transitions. Second operand 11 states. [2018-09-15 23:21:01,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:21:01,690 INFO L93 Difference]: Finished difference Result 2938 states and 4330 transitions. [2018-09-15 23:21:01,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 23:21:01,698 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 141 [2018-09-15 23:21:01,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:21:01,714 INFO L225 Difference]: With dead ends: 2938 [2018-09-15 23:21:01,714 INFO L226 Difference]: Without dead ends: 2344 [2018-09-15 23:21:01,717 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-15 23:21:01,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2018-09-15 23:21:01,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 2341. [2018-09-15 23:21:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2341 states. [2018-09-15 23:21:01,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2341 states to 2341 states and 2853 transitions. [2018-09-15 23:21:01,781 INFO L78 Accepts]: Start accepts. Automaton has 2341 states and 2853 transitions. Word has length 141 [2018-09-15 23:21:01,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:21:01,782 INFO L480 AbstractCegarLoop]: Abstraction has 2341 states and 2853 transitions. [2018-09-15 23:21:01,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 23:21:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2341 states and 2853 transitions. [2018-09-15 23:21:01,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-09-15 23:21:01,794 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:21:01,794 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 23:21:01,794 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:21:01,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1537057674, now seen corresponding path program 1 times [2018-09-15 23:21:01,796 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:21:01,796 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-09-15 23:21:01,797 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 23:21:01,802 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:21:01,802 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:21:07,494 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:21:41,179 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:21:41,179 INFO L272 AbstractInterpreter]: Visited 96 different actions 465 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 23:21:41,189 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:21:51,345 INFO L232 lantSequenceWeakener]: Weakened 213 states. On average, predicates are now at 75.65% of their original sizes. [2018-09-15 23:21:51,346 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:21:51,569 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:21:51,569 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:21:51,569 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 23:21:51,570 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:21:51,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 23:21:51,571 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 23:21:51,571 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-15 23:21:51,571 INFO L87 Difference]: Start difference. First operand 2341 states and 2853 transitions. Second operand 13 states. [2018-09-15 23:22:09,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:22:09,501 INFO L93 Difference]: Finished difference Result 3487 states and 4982 transitions. [2018-09-15 23:22:09,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 23:22:09,502 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 216 [2018-09-15 23:22:09,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:22:09,515 INFO L225 Difference]: With dead ends: 3487 [2018-09-15 23:22:09,515 INFO L226 Difference]: Without dead ends: 2893 [2018-09-15 23:22:09,519 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 227 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2018-09-15 23:22:09,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2018-09-15 23:22:09,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2888. [2018-09-15 23:22:09,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2888 states. [2018-09-15 23:22:09,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3487 transitions. [2018-09-15 23:22:09,593 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3487 transitions. Word has length 216 [2018-09-15 23:22:09,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:22:09,594 INFO L480 AbstractCegarLoop]: Abstraction has 2888 states and 3487 transitions. [2018-09-15 23:22:09,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-15 23:22:09,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3487 transitions. [2018-09-15 23:22:09,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-09-15 23:22:09,599 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:22:09,600 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 23:22:09,600 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:22:09,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1931953849, now seen corresponding path program 1 times [2018-09-15 23:22:09,601 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:22:09,601 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 229 with the following transitions: [2018-09-15 23:22:09,601 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 23:22:09,605 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:22:09,605 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:22:13,592 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:23:17,993 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:23:17,994 INFO L272 AbstractInterpreter]: Visited 96 different actions 280 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-15 23:23:18,000 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown