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/Problem19_label37_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 13:25:45,439 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 13:25:45,441 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 13:25:45,453 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 13:25:45,454 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 13:25:45,455 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 13:25:45,456 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 13:25:45,458 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 13:25:45,460 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 13:25:45,461 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 13:25:45,461 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 13:25:45,462 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 13:25:45,463 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 13:25:45,464 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 13:25:45,465 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 13:25:45,466 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 13:25:45,467 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 13:25:45,469 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 13:25:45,471 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 13:25:45,480 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 13:25:45,481 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 13:25:45,483 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 13:25:45,485 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 13:25:45,491 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 13:25:45,491 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 13:25:45,492 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 13:25:45,493 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 13:25:45,494 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 13:25:45,495 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 13:25:45,496 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 13:25:45,499 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 13:25:45,500 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 13:25:45,500 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 13:25:45,501 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 13:25:45,503 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 13:25:45,504 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 13:25:45,506 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 13:25:45,535 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 13:25:45,536 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 13:25:45,537 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 13:25:45,537 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 13:25:45,538 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 13:25:45,538 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 13:25:45,538 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 13:25:45,538 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 13:25:45,542 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 13:25:45,542 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 13:25:45,542 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 13:25:45,542 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 13:25:45,543 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 13:25:45,543 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 13:25:45,543 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 13:25:45,544 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 13:25:45,544 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 13:25:45,544 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 13:25:45,544 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 13:25:45,544 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 13:25:45,546 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 13:25:45,546 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 13:25:45,547 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 13:25:45,547 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 13:25:45,547 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 13:25:45,548 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 13:25:45,548 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 13:25:45,548 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 13:25:45,548 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 13:25:45,548 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 13:25:45,549 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 13:25:45,549 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 13:25:45,549 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 13:25:45,549 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 13:25:45,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 13:25:45,625 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 13:25:45,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 13:25:45,631 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 13:25:45,631 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 13:25:45,632 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label37_true-unreach-call.c [2018-09-19 13:25:45,987 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59396b4f0/a265b4db6b354a4cb6eb05f7a4767560/FLAG8ddac61d8 [2018-09-19 13:25:46,597 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 13:25:46,599 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label37_true-unreach-call.c [2018-09-19 13:25:46,645 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59396b4f0/a265b4db6b354a4cb6eb05f7a4767560/FLAG8ddac61d8 [2018-09-19 13:25:46,668 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59396b4f0/a265b4db6b354a4cb6eb05f7a4767560 [2018-09-19 13:25:46,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 13:25:46,687 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 13:25:46,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 13:25:46,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 13:25:46,695 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 13:25:46,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:25:46" (1/1) ... [2018-09-19 13:25:46,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f06a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:46, skipping insertion in model container [2018-09-19 13:25:46,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:25:46" (1/1) ... [2018-09-19 13:25:46,712 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 13:25:48,801 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 13:25:48,823 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 13:25:49,867 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 13:25:50,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:50 WrapperNode [2018-09-19 13:25:50,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 13:25:50,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 13:25:50,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 13:25:50,438 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 13:25:50,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:50" (1/1) ... [2018-09-19 13:25:50,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:50" (1/1) ... [2018-09-19 13:25:50,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 13:25:50,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 13:25:50,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 13:25:50,725 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 13:25:51,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:50" (1/1) ... [2018-09-19 13:25:51,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:50" (1/1) ... [2018-09-19 13:25:51,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:50" (1/1) ... [2018-09-19 13:25:51,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:50" (1/1) ... [2018-09-19 13:25:52,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:50" (1/1) ... [2018-09-19 13:25:52,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:50" (1/1) ... [2018-09-19 13:25:52,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:50" (1/1) ... [2018-09-19 13:25:52,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 13:25:52,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 13:25:52,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 13:25:52,491 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 13:25:52,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:50" (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 13:25:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 13:25:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 13:25:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-19 13:25:52,566 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-19 13:25:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-19 13:25:52,566 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-19 13:25:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 13:25:52,566 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 13:25:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 13:25:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 13:25:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 13:25:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 13:25:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 13:25:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 13:25:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 13:25:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 13:25:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 13:25:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 13:26:10,759 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 13:26:10,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:26:10 BoogieIcfgContainer [2018-09-19 13:26:10,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 13:26:10,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 13:26:10,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 13:26:10,764 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 13:26:10,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:25:46" (1/3) ... [2018-09-19 13:26:10,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12590736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:26:10, skipping insertion in model container [2018-09-19 13:26:10,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:25:50" (2/3) ... [2018-09-19 13:26:10,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12590736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:26:10, skipping insertion in model container [2018-09-19 13:26:10,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:26:10" (3/3) ... [2018-09-19 13:26:10,768 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label37_true-unreach-call.c [2018-09-19 13:26:10,778 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 13:26:10,788 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 13:26:10,854 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 13:26:10,855 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 13:26:10,855 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 13:26:10,855 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 13:26:10,855 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 13:26:10,855 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 13:26:10,855 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 13:26:10,856 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 13:26:10,856 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 13:26:10,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-19 13:26:10,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-19 13:26:10,921 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:26:10,923 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] [2018-09-19 13:26:10,925 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:26:10,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1282298446, now seen corresponding path program 1 times [2018-09-19 13:26:10,932 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:26:10,932 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 46 with the following transitions: [2018-09-19 13:26:10,935 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], [5486], [5488], [6806], [6810], [6816], [6820], [6837], [6838], [6839], [6841] [2018-09-19 13:26:10,987 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:26:10,988 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:26:11,304 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:26:11,309 INFO L272 AbstractInterpreter]: Visited 44 different actions 44 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 13:26:11,357 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:26:11,493 INFO L232 lantSequenceWeakener]: Weakened 42 states. On average, predicates are now at 77% of their original sizes. [2018-09-19 13:26:11,493 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:26:11,720 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:26:11,722 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:26:11,722 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 13:26:11,722 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:26:11,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 13:26:11,742 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 13:26:11,742 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 13:26:11,745 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 6 states. [2018-09-19 13:26:32,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:26:32,590 INFO L93 Difference]: Finished difference Result 4946 states and 9354 transitions. [2018-09-19 13:26:32,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 13:26:32,596 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-09-19 13:26:32,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:26:32,649 INFO L225 Difference]: With dead ends: 4946 [2018-09-19 13:26:32,649 INFO L226 Difference]: Without dead ends: 3166 [2018-09-19 13:26:32,666 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 13:26:32,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2018-09-19 13:26:32,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3164. [2018-09-19 13:26:32,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3164 states. [2018-09-19 13:26:32,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 4690 transitions. [2018-09-19 13:26:32,868 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 4690 transitions. Word has length 45 [2018-09-19 13:26:32,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:26:32,868 INFO L480 AbstractCegarLoop]: Abstraction has 3164 states and 4690 transitions. [2018-09-19 13:26:32,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 13:26:32,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 4690 transitions. [2018-09-19 13:26:32,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-09-19 13:26:32,883 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:26:32,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:32,884 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:26:32,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1695521518, now seen corresponding path program 1 times [2018-09-19 13:26:32,890 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:26:32,891 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 286 with the following transitions: [2018-09-19 13:26:32,892 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], [5486], [5488], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [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] [2018-09-19 13:26:32,913 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:26:32,913 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:26:33,657 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:26:33,657 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. [2018-09-19 13:26:33,693 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:26:34,397 INFO L232 lantSequenceWeakener]: Weakened 282 states. On average, predicates are now at 75.33% of their original sizes. [2018-09-19 13:26:34,400 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:26:35,143 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:26:35,144 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:26:35,144 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:26:35,144 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:26:35,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:26:35,150 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:26:35,150 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:26:35,151 INFO L87 Difference]: Start difference. First operand 3164 states and 4690 transitions. Second operand 10 states. [2018-09-19 13:27:06,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:27:06,421 INFO L93 Difference]: Finished difference Result 6334 states and 10742 transitions. [2018-09-19 13:27:06,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:27:06,422 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 285 [2018-09-19 13:27:06,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:27:06,445 INFO L225 Difference]: With dead ends: 6334 [2018-09-19 13:27:06,445 INFO L226 Difference]: Without dead ends: 4566 [2018-09-19 13:27:06,452 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 291 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:27:06,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states. [2018-09-19 13:27:06,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 4561. [2018-09-19 13:27:06,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4561 states. [2018-09-19 13:27:06,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4561 states to 4561 states and 6104 transitions. [2018-09-19 13:27:06,558 INFO L78 Accepts]: Start accepts. Automaton has 4561 states and 6104 transitions. Word has length 285 [2018-09-19 13:27:06,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:27:06,562 INFO L480 AbstractCegarLoop]: Abstraction has 4561 states and 6104 transitions. [2018-09-19 13:27:06,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:27:06,563 INFO L276 IsEmpty]: Start isEmpty. Operand 4561 states and 6104 transitions. [2018-09-19 13:27:06,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-09-19 13:27:06,585 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:27:06,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:06,586 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:27:06,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1605730102, now seen corresponding path program 1 times [2018-09-19 13:27:06,587 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:27:06,587 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 542 with the following transitions: [2018-09-19 13:27:06,590 INFO L202 CegarAbsIntRunner]: [0], [1], [4196], [4200], [4204], [4208], [4212], [4216], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4279], [4290], [4294], [4298], [4309], [4313], [4317], [4321], [4325], [4329], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4396], [4400], [4404], [4408], [4412], [4416], [4420], [4431], [4435], [4439], [4443], [4454], [4458], [4462], [4466], [4470], [4474], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4553], [4557], [4561], [4565], [4569], [4573], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4620], [4624], [4628], [4632], [4636], [4647], [4651], [4655], [4659], [4663], [4667], [4671], [4675], [4679], [4690], [4694], [4698], [4709], [4713], [4717], [4721], [4725], [4729], [4733], [4737], [4741], [4745], [4749], [4753], [4764], [4768], [4772], [4776], [4780], [4784], [4788], [4792], [4803], [4807], [4811], [4815], [4819], [4823], [4827], [4831], [4835], [4839], [4843], [4847], [4858], [4862], [4873], [4877], [4881], [4885], [4896], [4900], [4904], [4908], [4912], [4916], [4920], [4924], [4935], [4939], [4943], [4954], [4958], [4962], [4966], [4970], [4974], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5094], [5105], [5109], [5120], [5124], [5128], [5132], [5136], [5140], [5143], [5226], [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], [5486], [5488], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [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], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6604], [6608], [6619], [6623], [6634], [6645], [6649], [6653], [6657], [6661], [6665], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6712], [6716], [6727], [6731], [6735], [6739], [6743], [6747], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6801], [6802], [6806], [6810], [6816], [6820], [6822], [6835], [6836], [6837], [6838], [6839], [6841], [6842] [2018-09-19 13:27:06,610 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:27:06,611 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:27:07,176 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:27:07,836 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:27:07,836 INFO L272 AbstractInterpreter]: Visited 503 different actions 1000 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 13:27:07,877 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:27:08,846 INFO L232 lantSequenceWeakener]: Weakened 538 states. On average, predicates are now at 75.18% of their original sizes. [2018-09-19 13:27:08,846 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:27:10,416 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:27:10,417 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:27:10,417 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 13:27:10,417 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:27:10,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 13:27:10,419 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 13:27:10,420 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-09-19 13:27:10,420 INFO L87 Difference]: Start difference. First operand 4561 states and 6104 transitions. Second operand 14 states. [2018-09-19 13:27:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:27:36,582 INFO L93 Difference]: Finished difference Result 7729 states and 12158 transitions. [2018-09-19 13:27:36,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 13:27:36,583 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 541 [2018-09-19 13:27:36,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:27:36,609 INFO L225 Difference]: With dead ends: 7729 [2018-09-19 13:27:36,609 INFO L226 Difference]: Without dead ends: 5961 [2018-09-19 13:27:36,615 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 552 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2018-09-19 13:27:36,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5961 states. [2018-09-19 13:27:36,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5961 to 5958. [2018-09-19 13:27:36,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5958 states. [2018-09-19 13:27:36,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 7534 transitions. [2018-09-19 13:27:36,752 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 7534 transitions. Word has length 541 [2018-09-19 13:27:36,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:27:36,754 INFO L480 AbstractCegarLoop]: Abstraction has 5958 states and 7534 transitions. [2018-09-19 13:27:36,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 13:27:36,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 7534 transitions. [2018-09-19 13:27:36,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2018-09-19 13:27:36,767 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:27:36,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:36,768 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:27:36,768 INFO L82 PathProgramCache]: Analyzing trace with hash 103668270, now seen corresponding path program 1 times [2018-09-19 13:27:36,768 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:27:36,769 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 555 with the following transitions: [2018-09-19 13:27:36,771 INFO L202 CegarAbsIntRunner]: [0], [1], [4196], [4200], [4204], [4208], [4212], [4216], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4279], [4290], [4294], [4298], [4309], [4313], [4317], [4321], [4325], [4329], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4396], [4400], [4404], [4408], [4412], [4416], [4420], [4431], [4435], [4439], [4443], [4454], [4458], [4462], [4466], [4470], [4474], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4553], [4557], [4561], [4565], [4569], [4573], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4620], [4624], [4628], [4632], [4636], [4647], [4651], [4655], [4659], [4663], [4667], [4671], [4675], [4679], [4690], [4694], [4698], [4709], [4713], [4717], [4721], [4725], [4729], [4733], [4737], [4741], [4745], [4749], [4753], [4764], [4768], [4772], [4776], [4780], [4784], [4788], [4792], [4803], [4807], [4811], [4815], [4819], [4823], [4827], [4831], [4835], [4839], [4843], [4847], [4858], [4862], [4873], [4877], [4881], [4885], [4896], [4900], [4904], [4908], [4912], [4916], [4920], [4924], [4935], [4939], [4943], [4954], [4958], [4962], [4966], [4970], [4974], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5094], [5105], [5109], [5120], [5124], [5128], [5132], [5136], [5140], [5144], [5148], [5152], [5156], [5167], [5171], [5175], [5179], [5183], [5187], [5191], [5195], [5199], [5202], [5226], [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], [5486], [5488], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [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], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6604], [6608], [6619], [6623], [6634], [6645], [6649], [6653], [6657], [6661], [6665], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6712], [6716], [6727], [6731], [6735], [6739], [6743], [6747], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6801], [6802], [6806], [6810], [6816], [6820], [6822], [6835], [6836], [6837], [6838], [6839], [6841], [6842] [2018-09-19 13:27:36,780 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:27:36,781 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:27:37,542 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:27:37,542 INFO L272 AbstractInterpreter]: Visited 516 different actions 1026 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 13:27:37,579 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:27:38,232 INFO L232 lantSequenceWeakener]: Weakened 551 states. On average, predicates are now at 75.17% of their original sizes. [2018-09-19 13:27:38,232 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:27:38,815 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:27:38,815 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:27:38,815 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 13:27:38,815 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:27:38,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 13:27:38,817 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 13:27:38,817 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-09-19 13:27:38,817 INFO L87 Difference]: Start difference. First operand 5958 states and 7534 transitions. Second operand 14 states. [2018-09-19 13:28:20,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:28:20,658 INFO L93 Difference]: Finished difference Result 9124 states and 13583 transitions. [2018-09-19 13:28:20,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 13:28:20,665 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 554 [2018-09-19 13:28:20,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:28:20,693 INFO L225 Difference]: With dead ends: 9124 [2018-09-19 13:28:20,693 INFO L226 Difference]: Without dead ends: 7356 [2018-09-19 13:28:20,700 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 565 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2018-09-19 13:28:20,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7356 states. [2018-09-19 13:28:20,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7356 to 7353. [2018-09-19 13:28:20,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7353 states. [2018-09-19 13:28:20,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7353 states to 7353 states and 8947 transitions. [2018-09-19 13:28:20,840 INFO L78 Accepts]: Start accepts. Automaton has 7353 states and 8947 transitions. Word has length 554 [2018-09-19 13:28:20,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:28:20,842 INFO L480 AbstractCegarLoop]: Abstraction has 7353 states and 8947 transitions. [2018-09-19 13:28:20,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 13:28:20,842 INFO L276 IsEmpty]: Start isEmpty. Operand 7353 states and 8947 transitions. [2018-09-19 13:28:20,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2018-09-19 13:28:20,858 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:28:20,858 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:20,859 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:28:20,859 INFO L82 PathProgramCache]: Analyzing trace with hash -387991424, now seen corresponding path program 1 times [2018-09-19 13:28:20,859 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:28:20,859 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 651 with the following transitions: [2018-09-19 13:28:20,860 INFO L202 CegarAbsIntRunner]: [0], [1], [4196], [4200], [4204], [4208], [4212], [4216], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4279], [4290], [4294], [4298], [4309], [4313], [4317], [4321], [4325], [4329], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4396], [4400], [4404], [4408], [4412], [4416], [4420], [4431], [4435], [4439], [4443], [4454], [4458], [4462], [4466], [4470], [4474], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4553], [4557], [4561], [4565], [4569], [4573], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4620], [4624], [4628], [4632], [4636], [4647], [4651], [4655], [4659], [4663], [4667], [4671], [4675], [4679], [4690], [4694], [4698], [4709], [4713], [4717], [4721], [4725], [4729], [4733], [4737], [4741], [4745], [4749], [4753], [4764], [4768], [4772], [4776], [4780], [4784], [4788], [4792], [4803], [4807], [4811], [4815], [4819], [4823], [4827], [4831], [4835], [4839], [4843], [4847], [4858], [4862], [4873], [4877], [4881], [4885], [4896], [4900], [4904], [4908], [4912], [4916], [4920], [4924], [4935], [4939], [4943], [4954], [4958], [4962], [4966], [4970], [4974], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5094], [5105], [5109], [5120], [5124], [5128], [5132], [5136], [5140], [5143], [5226], [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], [5486], [5488], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [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], [5917], [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], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6604], [6608], [6619], [6623], [6634], [6645], [6649], [6653], [6657], [6661], [6665], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6712], [6716], [6727], [6731], [6735], [6739], [6743], [6747], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6801], [6802], [6806], [6810], [6816], [6820], [6822], [6835], [6836], [6837], [6838], [6839], [6841], [6842] [2018-09-19 13:28:20,868 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:28:20,869 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:28:21,273 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:28:21,863 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:28:21,863 INFO L272 AbstractInterpreter]: Visited 504 different actions 1503 times. Merged at 7 different actions 13 times. Never widened. Found 3 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 13:28:21,873 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:28:22,597 INFO L232 lantSequenceWeakener]: Weakened 647 states. On average, predicates are now at 75.16% of their original sizes. [2018-09-19 13:28:22,597 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:28:22,810 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:28:22,810 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:28:22,811 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 13:28:22,811 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:28:22,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 13:28:22,812 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 13:28:22,812 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-09-19 13:28:22,812 INFO L87 Difference]: Start difference. First operand 7353 states and 8947 transitions. Second operand 14 states. [2018-09-19 13:28:48,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:28:48,479 INFO L93 Difference]: Finished difference Result 10543 states and 15031 transitions. [2018-09-19 13:28:48,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 13:28:48,484 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 650 [2018-09-19 13:28:48,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:28:48,516 INFO L225 Difference]: With dead ends: 10543 [2018-09-19 13:28:48,516 INFO L226 Difference]: Without dead ends: 8775 [2018-09-19 13:28:48,530 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 661 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2018-09-19 13:28:48,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8775 states. [2018-09-19 13:28:48,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8775 to 8767. [2018-09-19 13:28:48,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8767 states. [2018-09-19 13:28:48,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8767 states to 8767 states and 10419 transitions. [2018-09-19 13:28:48,688 INFO L78 Accepts]: Start accepts. Automaton has 8767 states and 10419 transitions. Word has length 650 [2018-09-19 13:28:48,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:28:48,690 INFO L480 AbstractCegarLoop]: Abstraction has 8767 states and 10419 transitions. [2018-09-19 13:28:48,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 13:28:48,690 INFO L276 IsEmpty]: Start isEmpty. Operand 8767 states and 10419 transitions. [2018-09-19 13:28:48,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2018-09-19 13:28:48,717 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:28:48,717 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:48,718 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:28:48,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1151899865, now seen corresponding path program 1 times [2018-09-19 13:28:48,718 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:28:48,719 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 759 with the following transitions: [2018-09-19 13:28:48,721 INFO L202 CegarAbsIntRunner]: [0], [1], [4196], [4200], [4204], [4208], [4212], [4216], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4279], [4290], [4294], [4298], [4309], [4313], [4317], [4321], [4325], [4329], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4396], [4400], [4404], [4408], [4412], [4416], [4420], [4431], [4435], [4439], [4443], [4454], [4458], [4462], [4466], [4470], [4474], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4553], [4557], [4561], [4565], [4569], [4573], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4620], [4624], [4628], [4632], [4636], [4647], [4651], [4655], [4659], [4663], [4667], [4671], [4675], [4679], [4690], [4694], [4698], [4709], [4713], [4717], [4721], [4725], [4729], [4733], [4737], [4741], [4745], [4749], [4753], [4764], [4768], [4772], [4776], [4780], [4784], [4788], [4792], [4803], [4807], [4811], [4815], [4819], [4823], [4827], [4831], [4835], [4839], [4843], [4847], [4858], [4862], [4873], [4877], [4881], [4885], [4896], [4900], [4904], [4908], [4912], [4916], [4920], [4924], [4935], [4939], [4943], [4954], [4958], [4962], [4966], [4970], [4974], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5094], [5105], [5109], [5120], [5124], [5128], [5132], [5136], [5140], [5143], [5226], [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], [5486], [5488], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [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], [6432], [6437], [6439], [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], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6604], [6608], [6619], [6623], [6634], [6645], [6649], [6653], [6657], [6661], [6665], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6712], [6716], [6727], [6731], [6735], [6739], [6743], [6747], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6801], [6802], [6806], [6810], [6816], [6820], [6822], [6835], [6836], [6837], [6838], [6839], [6841], [6842] [2018-09-19 13:28:48,729 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:28:48,729 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:28:49,138 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:28:49,632 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:28:49,633 INFO L272 AbstractInterpreter]: Visited 506 different actions 1507 times. Merged at 7 different actions 13 times. Never widened. Found 3 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 13:28:49,670 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:28:50,369 INFO L232 lantSequenceWeakener]: Weakened 755 states. On average, predicates are now at 75.16% of their original sizes. [2018-09-19 13:28:50,369 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:28:50,727 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:28:50,727 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:28:50,727 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-19 13:28:50,727 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:28:50,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-19 13:28:50,728 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-19 13:28:50,729 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2018-09-19 13:28:50,729 INFO L87 Difference]: Start difference. First operand 8767 states and 10419 transitions. Second operand 16 states. [2018-09-19 13:29:38,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:29:38,398 INFO L93 Difference]: Finished difference Result 11933 states and 16468 transitions. [2018-09-19 13:29:38,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-19 13:29:38,405 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 758 [2018-09-19 13:29:38,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:29:38,428 INFO L225 Difference]: With dead ends: 11933 [2018-09-19 13:29:38,428 INFO L226 Difference]: Without dead ends: 10165 [2018-09-19 13:29:38,435 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 778 GetRequests, 743 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=1149, Unknown=0, NotChecked=0, Total=1332 [2018-09-19 13:29:38,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10165 states. [2018-09-19 13:29:38,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10165 to 10161. [2018-09-19 13:29:38,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10161 states. [2018-09-19 13:29:38,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10161 states to 10161 states and 11825 transitions. [2018-09-19 13:29:38,582 INFO L78 Accepts]: Start accepts. Automaton has 10161 states and 11825 transitions. Word has length 758 [2018-09-19 13:29:38,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:29:38,584 INFO L480 AbstractCegarLoop]: Abstraction has 10161 states and 11825 transitions. [2018-09-19 13:29:38,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-19 13:29:38,584 INFO L276 IsEmpty]: Start isEmpty. Operand 10161 states and 11825 transitions. [2018-09-19 13:29:38,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2018-09-19 13:29:38,595 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:29:38,595 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:29:38,596 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:29:38,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1099275817, now seen corresponding path program 1 times [2018-09-19 13:29:38,596 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:29:38,598 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 777 with the following transitions: [2018-09-19 13:29:38,599 INFO L202 CegarAbsIntRunner]: [0], [1], [4196], [4200], [4204], [4208], [4212], [4216], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4279], [4290], [4294], [4298], [4309], [4313], [4317], [4321], [4325], [4329], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4396], [4400], [4404], [4408], [4412], [4416], [4420], [4431], [4435], [4439], [4443], [4454], [4458], [4462], [4466], [4470], [4474], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4553], [4557], [4561], [4565], [4569], [4573], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4620], [4624], [4628], [4632], [4636], [4647], [4651], [4655], [4659], [4663], [4667], [4671], [4675], [4679], [4690], [4694], [4698], [4709], [4713], [4717], [4721], [4725], [4729], [4733], [4737], [4741], [4745], [4749], [4753], [4764], [4768], [4772], [4776], [4780], [4784], [4788], [4792], [4803], [4807], [4811], [4815], [4819], [4823], [4827], [4831], [4835], [4839], [4843], [4847], [4858], [4862], [4873], [4877], [4881], [4885], [4896], [4900], [4904], [4908], [4912], [4916], [4920], [4924], [4935], [4939], [4943], [4954], [4958], [4962], [4966], [4970], [4974], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5094], [5105], [5109], [5120], [5124], [5128], [5132], [5136], [5140], [5143], [5226], [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], [5486], [5488], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [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], [6540], [6541], [6545], [6549], [6553], [6557], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6604], [6608], [6619], [6623], [6634], [6645], [6649], [6653], [6657], [6661], [6665], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6712], [6716], [6727], [6731], [6735], [6739], [6743], [6747], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6801], [6802], [6806], [6810], [6816], [6820], [6822], [6835], [6836], [6837], [6838], [6839], [6841], [6842] [2018-09-19 13:29:38,606 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:29:38,607 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:29:39,019 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:29:39,764 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:29:39,767 INFO L272 AbstractInterpreter]: Visited 504 different actions 1503 times. Merged at 7 different actions 13 times. Never widened. Found 3 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 13:29:39,801 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:29:40,992 INFO L232 lantSequenceWeakener]: Weakened 773 states. On average, predicates are now at 75.13% of their original sizes. [2018-09-19 13:29:40,992 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:29:41,186 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:29:41,187 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:29:41,187 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 13:29:41,187 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:29:41,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 13:29:41,188 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 13:29:41,188 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-09-19 13:29:41,189 INFO L87 Difference]: Start difference. First operand 10161 states and 11825 transitions. Second operand 14 states. Received shutdown request... [2018-09-19 13:29:43,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-19 13:29:43,486 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 13:29:43,492 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 13:29:43,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:29:43 BoogieIcfgContainer [2018-09-19 13:29:43,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 13:29:43,493 INFO L168 Benchmark]: Toolchain (without parser) took 236809.38 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 913.1 MB. Max. memory is 7.1 GB. [2018-09-19 13:29:43,495 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 13:29:43,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3749.58 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 194.5 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -105.0 MB). Peak memory consumption was 488.2 MB. Max. memory is 7.1 GB. [2018-09-19 13:29:43,496 INFO L168 Benchmark]: Boogie Procedure Inliner took 286.78 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. [2018-09-19 13:29:43,497 INFO L168 Benchmark]: Boogie Preprocessor took 1765.50 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 857.7 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -867.6 MB). Peak memory consumption was 127.8 MB. Max. memory is 7.1 GB. [2018-09-19 13:29:43,498 INFO L168 Benchmark]: RCFGBuilder took 18269.42 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 253.8 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 149.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-19 13:29:43,499 INFO L168 Benchmark]: TraceAbstraction took 212731.04 ms. Allocated memory was 2.8 GB in the beginning and 3.8 GB in the end (delta: 935.3 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -553.4 MB). Peak memory consumption was 381.9 MB. Max. memory is 7.1 GB. [2018-09-19 13:29:43,505 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 3749.58 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 194.5 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -105.0 MB). Peak memory consumption was 488.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 286.78 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1765.50 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 857.7 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -867.6 MB). Peak memory consumption was 127.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18269.42 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 253.8 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 149.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 212731.04 ms. Allocated memory was 2.8 GB in the beginning and 3.8 GB in the end (delta: 935.3 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -553.4 MB). Peak memory consumption was 381.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 130). Cancelled while BasicCegarLoop was constructing difference of abstraction (10161states) and FLOYD_HOARE automaton (currently 9 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (353 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 212.6s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 196.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11684 SDtfs, 24618 SDslu, 6333 SDs, 0 SdLazy, 134526 SolverSat, 8320 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 168.4s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 3672 GetRequests, 3528 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10161occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.4s AbstIntTime, 7 AbstIntIterations, 7 AbstIntStrong, 0.9987839503598873 AbsIntWeakeningRatio, 0.05024986118822876 AbsIntAvgWeakeningVarsNumRemoved, 24.01082731815658 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 25 StatesRemovedByMinimization, 6 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/Problem19_label37_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_13-29-43-526.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label37_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_13-29-43-526.csv Completed graceful shutdown