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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label11_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:57:50,662 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:57:50,665 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:57:50,678 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:57:50,678 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:57:50,679 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:57:50,681 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:57:50,683 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:57:50,685 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:57:50,686 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:57:50,687 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:57:50,687 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:57:50,688 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:57:50,689 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:57:50,690 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:57:50,691 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:57:50,692 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:57:50,694 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:57:50,696 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:57:50,698 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:57:50,700 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:57:50,701 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:57:50,704 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 10:57:50,704 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 10:57:50,704 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 10:57:50,705 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 10:57:50,707 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 10:57:50,707 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 10:57:50,708 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 10:57:50,710 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 10:57:50,710 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 10:57:50,711 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 10:57:50,711 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 10:57:50,712 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 10:57:50,713 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 10:57:50,714 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 10:57:50,714 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 10:57:50,731 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:57:50,732 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:57:50,733 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:57:50,733 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:57:50,733 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:57:50,734 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:57:50,734 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:57:50,734 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:57:50,734 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:57:50,735 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:57:50,735 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:57:50,735 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:57:50,735 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:57:50,736 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:57:50,737 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:57:50,737 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:57:50,737 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:57:50,737 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:57:50,738 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:57:50,738 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:57:50,738 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:57:50,738 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:57:50,738 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:57:50,739 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:57:50,739 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:57:50,739 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:57:50,739 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:57:50,740 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:57:50,740 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:57:50,740 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:57:50,740 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:57:50,740 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:57:50,741 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:57:50,741 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:57:50,741 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:57:50,808 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:57:50,828 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:57:50,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:57:50,836 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:57:50,836 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:57:50,837 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label11_true-unreach-call.c [2018-09-19 10:57:51,219 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af39b1313/19982ced971b4fe18e11dc97e7a70cab/FLAG4be928799 [2018-09-19 10:57:51,582 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:57:51,583 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label11_true-unreach-call.c [2018-09-19 10:57:51,608 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af39b1313/19982ced971b4fe18e11dc97e7a70cab/FLAG4be928799 [2018-09-19 10:57:51,625 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af39b1313/19982ced971b4fe18e11dc97e7a70cab [2018-09-19 10:57:51,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:57:51,645 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:57:51,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:57:51,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:57:51,658 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:57:51,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:57:51" (1/1) ... [2018-09-19 10:57:51,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f9d2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:51, skipping insertion in model container [2018-09-19 10:57:51,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:57:51" (1/1) ... [2018-09-19 10:57:51,677 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:57:52,486 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:57:52,506 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:57:52,756 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:57:52,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:52 WrapperNode [2018-09-19 10:57:52,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:57:52,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:57:52,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:57:52,871 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:57:52,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:52" (1/1) ... [2018-09-19 10:57:52,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:52" (1/1) ... [2018-09-19 10:57:53,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:57:53,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:57:53,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:57:53,095 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:57:53,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:52" (1/1) ... [2018-09-19 10:57:53,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:52" (1/1) ... [2018-09-19 10:57:53,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:52" (1/1) ... [2018-09-19 10:57:53,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:52" (1/1) ... [2018-09-19 10:57:53,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:52" (1/1) ... [2018-09-19 10:57:53,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:52" (1/1) ... [2018-09-19 10:57:53,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:52" (1/1) ... [2018-09-19 10:57:53,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:57:53,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:57:53,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:57:53,627 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:57:53,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:52" (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 10:57:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:57:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:57:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 10:57:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 10:57:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:57:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:57:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:57:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:57:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:57:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:58:00,094 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:58:00,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:58:00 BoogieIcfgContainer [2018-09-19 10:58:00,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:58:00,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:58:00,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:58:00,101 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:58:00,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:57:51" (1/3) ... [2018-09-19 10:58:00,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d92c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:58:00, skipping insertion in model container [2018-09-19 10:58:00,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:57:52" (2/3) ... [2018-09-19 10:58:00,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d92c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:58:00, skipping insertion in model container [2018-09-19 10:58:00,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:58:00" (3/3) ... [2018-09-19 10:58:00,107 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label11_true-unreach-call.c [2018-09-19 10:58:00,118 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:58:00,131 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:58:00,200 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:58:00,201 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:58:00,201 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:58:00,202 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:58:00,202 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:58:00,202 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:58:00,202 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:58:00,202 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:58:00,202 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:58:00,245 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-19 10:58:00,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-19 10:58:00,257 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:58:00,259 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:58:00,260 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:58:00,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1469466684, now seen corresponding path program 1 times [2018-09-19 10:58:00,267 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:58:00,268 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 63 with the following transitions: [2018-09-19 10:58:00,271 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [575], [577], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-19 10:58:00,342 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:58:00,342 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:58:01,860 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:58:01,863 INFO L272 AbstractInterpreter]: Visited 61 different actions 61 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 10:58:01,896 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:58:02,752 INFO L232 lantSequenceWeakener]: Weakened 60 states. On average, predicates are now at 80.73% of their original sizes. [2018-09-19 10:58:02,753 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:58:03,078 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:58:03,080 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:58:03,080 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:58:03,081 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:58:03,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:58:03,095 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:58:03,095 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:58:03,098 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-19 10:58:14,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:58:14,130 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-19 10:58:14,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:58:14,136 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2018-09-19 10:58:14,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:58:14,167 INFO L225 Difference]: With dead ends: 1158 [2018-09-19 10:58:14,167 INFO L226 Difference]: Without dead ends: 746 [2018-09-19 10:58:14,175 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:58:14,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-19 10:58:14,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-19 10:58:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-19 10:58:14,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-19 10:58:14,273 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 62 [2018-09-19 10:58:14,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:58:14,274 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-19 10:58:14,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:58:14,274 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-19 10:58:14,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-09-19 10:58:14,283 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:58:14,283 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 10:58:14,283 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:58:14,284 INFO L82 PathProgramCache]: Analyzing trace with hash -222323610, now seen corresponding path program 1 times [2018-09-19 10:58:14,284 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:58:14,284 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2018-09-19 10:58:14,285 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [575], [577], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 10:58:14,297 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:58:14,297 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:58:16,597 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:58:20,955 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:58:20,955 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:58:20,961 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:58:21,985 INFO L232 lantSequenceWeakener]: Weakened 152 states. On average, predicates are now at 78.7% of their original sizes. [2018-09-19 10:58:21,986 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:58:22,481 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:58:22,482 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:58:22,482 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 10:58:22,482 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:58:22,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 10:58:22,484 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 10:58:22,484 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 10:58:22,484 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-19 10:58:37,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:58:37,168 INFO L93 Difference]: Finished difference Result 1772 states and 3024 transitions. [2018-09-19 10:58:37,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:58:37,169 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 154 [2018-09-19 10:58:37,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:58:37,179 INFO L225 Difference]: With dead ends: 1772 [2018-09-19 10:58:37,179 INFO L226 Difference]: Without dead ends: 1372 [2018-09-19 10:58:37,182 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 162 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-09-19 10:58:37,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2018-09-19 10:58:37,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1094. [2018-09-19 10:58:37,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2018-09-19 10:58:37,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1441 transitions. [2018-09-19 10:58:37,238 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1441 transitions. Word has length 154 [2018-09-19 10:58:37,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:58:37,239 INFO L480 AbstractCegarLoop]: Abstraction has 1094 states and 1441 transitions. [2018-09-19 10:58:37,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 10:58:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1441 transitions. [2018-09-19 10:58:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-09-19 10:58:37,245 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:58:37,245 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 10:58:37,246 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:58:37,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1955628894, now seen corresponding path program 1 times [2018-09-19 10:58:37,246 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:58:37,247 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-09-19 10:58:37,247 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [575], [577], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 10:58:37,254 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:58:37,254 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:58:40,329 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:58:46,314 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:58:46,314 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:58:46,343 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:58:47,538 INFO L232 lantSequenceWeakener]: Weakened 188 states. On average, predicates are now at 78.42% of their original sizes. [2018-09-19 10:58:47,538 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:58:48,005 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:58:48,005 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:58:48,006 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 10:58:48,006 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:58:48,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 10:58:48,009 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 10:58:48,009 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 10:58:48,010 INFO L87 Difference]: Start difference. First operand 1094 states and 1441 transitions. Second operand 11 states. [2018-09-19 10:59:02,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:59:02,602 INFO L93 Difference]: Finished difference Result 2749 states and 4050 transitions. [2018-09-19 10:59:02,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:59:02,608 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 190 [2018-09-19 10:59:02,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:59:02,618 INFO L225 Difference]: With dead ends: 2749 [2018-09-19 10:59:02,619 INFO L226 Difference]: Without dead ends: 1999 [2018-09-19 10:59:02,622 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 198 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 10:59:02,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2018-09-19 10:59:02,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1450. [2018-09-19 10:59:02,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-09-19 10:59:02,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1815 transitions. [2018-09-19 10:59:02,681 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1815 transitions. Word has length 190 [2018-09-19 10:59:02,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:59:02,682 INFO L480 AbstractCegarLoop]: Abstraction has 1450 states and 1815 transitions. [2018-09-19 10:59:02,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 10:59:02,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1815 transitions. [2018-09-19 10:59:02,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-09-19 10:59:02,689 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:59:02,689 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 10:59:02,690 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:59:02,690 INFO L82 PathProgramCache]: Analyzing trace with hash 634710398, now seen corresponding path program 1 times [2018-09-19 10:59:02,690 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:59:02,691 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 303 with the following transitions: [2018-09-19 10:59:02,692 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [575], [577], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 10:59:02,702 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:59:02,703 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:59:15,200 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:59:15,201 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:59:15,207 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:59:16,556 INFO L232 lantSequenceWeakener]: Weakened 300 states. On average, predicates are now at 77.99% of their original sizes. [2018-09-19 10:59:16,556 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:59:16,924 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:59:16,925 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:59:16,925 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:59:16,925 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:59:16,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:59:16,926 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:59:16,926 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:59:16,927 INFO L87 Difference]: Start difference. First operand 1450 states and 1815 transitions. Second operand 13 states. [2018-09-19 10:59:33,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:59:33,123 INFO L93 Difference]: Finished difference Result 2897 states and 3954 transitions. [2018-09-19 10:59:33,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:59:33,125 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 302 [2018-09-19 10:59:33,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:59:33,136 INFO L225 Difference]: With dead ends: 2897 [2018-09-19 10:59:33,136 INFO L226 Difference]: Without dead ends: 1793 [2018-09-19 10:59:33,140 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 312 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-19 10:59:33,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2018-09-19 10:59:33,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1790. [2018-09-19 10:59:33,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2018-09-19 10:59:33,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2172 transitions. [2018-09-19 10:59:33,200 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2172 transitions. Word has length 302 [2018-09-19 10:59:33,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:59:33,201 INFO L480 AbstractCegarLoop]: Abstraction has 1790 states and 2172 transitions. [2018-09-19 10:59:33,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:59:33,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2172 transitions. [2018-09-19 10:59:33,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-09-19 10:59:33,207 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:59:33,207 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 10:59:33,208 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:59:33,208 INFO L82 PathProgramCache]: Analyzing trace with hash -444036114, now seen corresponding path program 1 times [2018-09-19 10:59:33,208 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:59:33,209 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 311 with the following transitions: [2018-09-19 10:59:33,209 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [575], [577], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 10:59:33,224 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:59:33,224 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:59:51,327 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:59:51,327 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:59:51,330 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:59:52,682 INFO L232 lantSequenceWeakener]: Weakened 308 states. On average, predicates are now at 77.98% of their original sizes. [2018-09-19 10:59:52,682 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:59:53,086 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:59:53,087 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:59:53,087 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:59:53,087 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:59:53,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:59:53,088 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:59:53,088 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:59:53,089 INFO L87 Difference]: Start difference. First operand 1790 states and 2172 transitions. Second operand 14 states. [2018-09-19 11:00:09,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:00:09,485 INFO L93 Difference]: Finished difference Result 3242 states and 4318 transitions. [2018-09-19 11:00:09,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 11:00:09,488 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 310 [2018-09-19 11:00:09,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:00:09,499 INFO L225 Difference]: With dead ends: 3242 [2018-09-19 11:00:09,500 INFO L226 Difference]: Without dead ends: 2138 [2018-09-19 11:00:09,504 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 322 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-09-19 11:00:09,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2018-09-19 11:00:09,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2132. [2018-09-19 11:00:09,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2018-09-19 11:00:09,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2533 transitions. [2018-09-19 11:00:09,571 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2533 transitions. Word has length 310 [2018-09-19 11:00:09,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:00:09,572 INFO L480 AbstractCegarLoop]: Abstraction has 2132 states and 2533 transitions. [2018-09-19 11:00:09,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 11:00:09,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2533 transitions. [2018-09-19 11:00:09,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2018-09-19 11:00:09,581 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:00:09,582 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:09,582 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:00:09,583 INFO L82 PathProgramCache]: Analyzing trace with hash -215739872, now seen corresponding path program 1 times [2018-09-19 11:00:09,583 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:00:09,583 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 395 with the following transitions: [2018-09-19 11:00:09,584 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [575], [577], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:00:09,595 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:00:09,595 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:00:11,281 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:00:34,803 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:00:34,803 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 11:00:34,813 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:00:36,687 INFO L232 lantSequenceWeakener]: Weakened 392 states. On average, predicates are now at 77.85% of their original sizes. [2018-09-19 11:00:36,688 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:00:37,028 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:00:37,028 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:00:37,029 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:00:37,029 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:00:37,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:00:37,030 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:00:37,030 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:00:37,030 INFO L87 Difference]: Start difference. First operand 2132 states and 2533 transitions. Second operand 11 states. [2018-09-19 11:00:55,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:00:55,220 INFO L93 Difference]: Finished difference Result 4495 states and 5901 transitions. [2018-09-19 11:00:55,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 11:00:55,222 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 394 [2018-09-19 11:00:55,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:00:55,236 INFO L225 Difference]: With dead ends: 4495 [2018-09-19 11:00:55,236 INFO L226 Difference]: Without dead ends: 3049 [2018-09-19 11:00:55,240 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 404 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-09-19 11:00:55,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2018-09-19 11:00:55,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 2489. [2018-09-19 11:00:55,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2018-09-19 11:00:55,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 2917 transitions. [2018-09-19 11:00:55,312 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 2917 transitions. Word has length 394 [2018-09-19 11:00:55,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:00:55,313 INFO L480 AbstractCegarLoop]: Abstraction has 2489 states and 2917 transitions. [2018-09-19 11:00:55,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:00:55,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 2917 transitions. [2018-09-19 11:00:55,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2018-09-19 11:00:55,324 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:00:55,324 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:55,325 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:00:55,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1195338597, now seen corresponding path program 1 times [2018-09-19 11:00:55,325 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:00:55,325 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 412 with the following transitions: [2018-09-19 11:00:55,326 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [575], [577], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:00:55,332 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:00:55,332 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:01:03,608 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:01:20,658 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:01:20,658 INFO L272 AbstractInterpreter]: Visited 256 different actions 1013 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 11:01:20,715 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:01:22,483 INFO L232 lantSequenceWeakener]: Weakened 409 states. On average, predicates are now at 77.82% of their original sizes. [2018-09-19 11:01:22,484 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:01:22,856 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:01:22,857 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:01:22,857 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 11:01:22,857 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:01:22,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 11:01:22,858 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 11:01:22,858 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 11:01:22,858 INFO L87 Difference]: Start difference. First operand 2489 states and 2917 transitions. Second operand 13 states. [2018-09-19 11:01:37,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:01:37,430 INFO L93 Difference]: Finished difference Result 4647 states and 5816 transitions. [2018-09-19 11:01:37,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 11:01:37,432 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 411 [2018-09-19 11:01:37,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:01:37,445 INFO L225 Difference]: With dead ends: 4647 [2018-09-19 11:01:37,446 INFO L226 Difference]: Without dead ends: 2844 [2018-09-19 11:01:37,450 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 421 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2018-09-19 11:01:37,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2018-09-19 11:01:37,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2833. [2018-09-19 11:01:37,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2833 states. [2018-09-19 11:01:37,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 3297 transitions. [2018-09-19 11:01:37,527 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 3297 transitions. Word has length 411 [2018-09-19 11:01:37,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:01:37,528 INFO L480 AbstractCegarLoop]: Abstraction has 2833 states and 3297 transitions. [2018-09-19 11:01:37,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 11:01:37,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 3297 transitions. [2018-09-19 11:01:37,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2018-09-19 11:01:37,536 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:01:37,536 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:37,536 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:01:37,537 INFO L82 PathProgramCache]: Analyzing trace with hash 2114645272, now seen corresponding path program 1 times [2018-09-19 11:01:37,537 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:01:37,537 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 431 with the following transitions: [2018-09-19 11:01:37,538 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [575], [577], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:01:37,544 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:01:37,545 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:01:40,437 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:02:02,733 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:02:02,734 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 11:02:02,740 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:02:04,441 INFO L232 lantSequenceWeakener]: Weakened 428 states. On average, predicates are now at 77.8% of their original sizes. [2018-09-19 11:02:04,441 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:02:04,731 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:02:04,731 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:02:04,731 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:02:04,732 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:02:04,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:02:04,732 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:02:04,732 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:02:04,733 INFO L87 Difference]: Start difference. First operand 2833 states and 3297 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 11:02:10,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 11:02:10,462 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 11:02:10,468 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 11:02:10,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:02:10 BoogieIcfgContainer [2018-09-19 11:02:10,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:02:10,469 INFO L168 Benchmark]: Toolchain (without parser) took 258828.78 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -632.1 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-19 11:02:10,471 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 11:02:10,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1222.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-09-19 11:02:10,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 223.40 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-19 11:02:10,473 INFO L168 Benchmark]: Boogie Preprocessor took 532.09 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 837.3 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -972.0 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2018-09-19 11:02:10,474 INFO L168 Benchmark]: RCFGBuilder took 6468.46 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 248.6 MB). Peak memory consumption was 248.6 MB. Max. memory is 7.1 GB. [2018-09-19 11:02:10,475 INFO L168 Benchmark]: TraceAbstraction took 250371.58 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -35.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-19 11:02:10,480 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1222.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 223.40 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 532.09 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 837.3 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -972.0 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6468.46 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 248.6 MB). Peak memory consumption was 248.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 250371.58 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -35.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 172]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 172). Cancelled while BasicCegarLoop was constructing difference of abstraction (2833states) and FLOYD_HOARE automaton (currently 15 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (921 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 250.2s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 111.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2813 SDtfs, 14139 SDslu, 3126 SDs, 0 SdLazy, 34806 SolverSat, 3332 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 99.5s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 2318 GetRequests, 2171 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2833occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 123.8s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9964767995633688 AbsIntWeakeningRatio, 0.07661469933184856 AbsIntAvgWeakeningVarsNumRemoved, 905.6026726057906 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 1409 StatesRemovedByMinimization, 7 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/Problem16_label11_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-02-10-493.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label11_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-02-10-493.csv Completed graceful shutdown