java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:42:22,430 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:42:22,433 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:42:22,447 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:42:22,447 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:42:22,448 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:42:22,450 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:42:22,451 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:42:22,453 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:42:22,456 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:42:22,458 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:42:22,458 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:42:22,459 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:42:22,460 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:42:22,461 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:42:22,462 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:42:22,463 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:42:22,465 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:42:22,467 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:42:22,469 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:42:22,470 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:42:22,472 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:42:22,474 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 15:42:22,474 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 15:42:22,475 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 15:42:22,479 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 15:42:22,480 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 15:42:22,481 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 15:42:22,482 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 15:42:22,485 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 15:42:22,485 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 15:42:22,486 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 15:42:22,486 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:42:22,486 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:42:22,491 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:42:22,492 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:42:22,492 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 15:42:22,522 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:42:22,522 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:42:22,523 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:42:22,523 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:42:22,523 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:42:22,523 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:42:22,524 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 15:42:22,524 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:42:22,524 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:42:22,524 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 15:42:22,524 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:42:22,525 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:42:22,526 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:42:22,526 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:42:22,527 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:42:22,527 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:42:22,527 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:42:22,527 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:42:22,527 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:42:22,528 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:42:22,528 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:42:22,528 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:42:22,528 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:42:22,529 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:42:22,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:42:22,530 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:42:22,530 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:42:22,531 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:42:22,531 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:42:22,531 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:42:22,531 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:42:22,531 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:42:22,532 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:42:22,532 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:42:22,597 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:42:22,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:42:22,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:42:22,621 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:42:22,622 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:42:22,623 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-09-15 15:42:22,997 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f2076f05/183d4d734f0544958ad538e49b7184e5/FLAG59a2ed87d [2018-09-15 15:42:23,597 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:42:23,598 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-09-15 15:42:23,650 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f2076f05/183d4d734f0544958ad538e49b7184e5/FLAG59a2ed87d [2018-09-15 15:42:23,666 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f2076f05/183d4d734f0544958ad538e49b7184e5 [2018-09-15 15:42:23,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:42:23,682 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:42:23,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:42:23,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:42:23,691 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:42:23,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:42:23" (1/1) ... [2018-09-15 15:42:23,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d288cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:23, skipping insertion in model container [2018-09-15 15:42:23,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:42:23" (1/1) ... [2018-09-15 15:42:23,708 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:42:25,768 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:42:25,787 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:42:26,944 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:42:27,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:27 WrapperNode [2018-09-15 15:42:27,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:42:27,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:42:27,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:42:27,591 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:42:27,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:27" (1/1) ... [2018-09-15 15:42:27,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:27" (1/1) ... [2018-09-15 15:42:29,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:42:29,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:42:29,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:42:29,074 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:42:29,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:27" (1/1) ... [2018-09-15 15:42:29,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:27" (1/1) ... [2018-09-15 15:42:29,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:27" (1/1) ... [2018-09-15 15:42:29,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:27" (1/1) ... [2018-09-15 15:42:29,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:27" (1/1) ... [2018-09-15 15:42:29,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:27" (1/1) ... [2018-09-15 15:42:29,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:27" (1/1) ... [2018-09-15 15:42:29,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:42:29,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:42:29,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:42:29,959 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:42:29,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:42:30,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:42:30,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:42:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-15 15:42:30,058 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-15 15:42:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-15 15:42:30,059 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-15 15:42:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-15 15:42:30,059 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-15 15:42:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 15:42:30,059 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 15:42:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 15:42:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 15:42:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 15:42:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 15:42:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:42:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:42:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:42:30,062 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:42:48,671 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:42:48,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:42:48 BoogieIcfgContainer [2018-09-15 15:42:48,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:42:48,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:42:48,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:42:48,677 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:42:48,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:42:23" (1/3) ... [2018-09-15 15:42:48,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77fae08d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:42:48, skipping insertion in model container [2018-09-15 15:42:48,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:42:27" (2/3) ... [2018-09-15 15:42:48,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77fae08d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:42:48, skipping insertion in model container [2018-09-15 15:42:48,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:42:48" (3/3) ... [2018-09-15 15:42:48,680 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label45_true-unreach-call.c [2018-09-15 15:42:48,690 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:42:48,700 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:42:48,782 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:42:48,783 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:42:48,783 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:42:48,783 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:42:48,784 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:42:48,784 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:42:48,784 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:42:48,784 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:42:48,784 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:42:48,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-15 15:42:48,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-15 15:42:48,847 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:42:48,848 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] [2018-09-15 15:42:48,849 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:42:48,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1607603996, now seen corresponding path program 1 times [2018-09-15 15:42:48,855 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:42:48,856 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 55 with the following transitions: [2018-09-15 15:42:48,858 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5558], [5560], [6806], [6810], [6816], [6820], [6837], [6838], [6839], [6841] [2018-09-15 15:42:48,897 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:42:48,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:42:49,737 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:42:49,738 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 15:42:49,782 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:42:50,403 INFO L232 lantSequenceWeakener]: Weakened 51 states. On average, predicates are now at 77.38% of their original sizes. [2018-09-15 15:42:50,403 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:42:50,671 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:42:50,672 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:42:50,673 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 15:42:50,673 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:42:50,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 15:42:50,686 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 15:42:50,687 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:42:50,690 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 6 states. [2018-09-15 15:43:12,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:43:12,871 INFO L93 Difference]: Finished difference Result 4946 states and 9354 transitions. [2018-09-15 15:43:12,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 15:43:12,877 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2018-09-15 15:43:12,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:43:12,932 INFO L225 Difference]: With dead ends: 4946 [2018-09-15 15:43:12,933 INFO L226 Difference]: Without dead ends: 3166 [2018-09-15 15:43:12,951 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:43:12,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2018-09-15 15:43:13,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3164. [2018-09-15 15:43:13,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3164 states. [2018-09-15 15:43:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 4690 transitions. [2018-09-15 15:43:13,154 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 4690 transitions. Word has length 54 [2018-09-15 15:43:13,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:43:13,155 INFO L480 AbstractCegarLoop]: Abstraction has 3164 states and 4690 transitions. [2018-09-15 15:43:13,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 15:43:13,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 4690 transitions. [2018-09-15 15:43:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-09-15 15:43:13,179 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:43:13,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:43:13,180 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:43:13,181 INFO L82 PathProgramCache]: Analyzing trace with hash -988047293, now seen corresponding path program 1 times [2018-09-15 15:43:13,181 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:43:13,181 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 295 with the following transitions: [2018-09-15 15:43:13,183 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5558], [5560], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6421], [6425], [6429], [6440], [6444], [6455], [6459], [6463], [6467], [6471], [6475], [6486], [6490], [6494], [6498], [6502], [6506], [6510], [6514], [6525], [6529], [6533], [6537], [6541], [6545], [6549], [6553], [6557], [6560], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-09-15 15:43:13,202 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:43:13,203 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:46:28,970 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:46:28,971 INFO L272 AbstractInterpreter]: Visited 247 different actions 487 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 15:46:28,980 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown