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/Problem10_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 09:56:44,376 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 09:56:44,378 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 09:56:44,391 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 09:56:44,392 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 09:56:44,393 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 09:56:44,394 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 09:56:44,396 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 09:56:44,398 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 09:56:44,399 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 09:56:44,400 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 09:56:44,400 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 09:56:44,401 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 09:56:44,402 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 09:56:44,403 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 09:56:44,404 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 09:56:44,405 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 09:56:44,407 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 09:56:44,409 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 09:56:44,411 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 09:56:44,412 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 09:56:44,413 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 09:56:44,416 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 09:56:44,416 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 09:56:44,417 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 09:56:44,418 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 09:56:44,419 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 09:56:44,420 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 09:56:44,420 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 09:56:44,422 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 09:56:44,422 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 09:56:44,423 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 09:56:44,423 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 09:56:44,423 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 09:56:44,424 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 09:56:44,425 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 09:56:44,425 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 09:56:44,442 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 09:56:44,442 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 09:56:44,443 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 09:56:44,444 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 09:56:44,444 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 09:56:44,444 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 09:56:44,444 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 09:56:44,444 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 09:56:44,445 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 09:56:44,445 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 09:56:44,445 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 09:56:44,445 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 09:56:44,445 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 09:56:44,446 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 09:56:44,446 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 09:56:44,446 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 09:56:44,447 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 09:56:44,447 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 09:56:44,447 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 09:56:44,447 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 09:56:44,447 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 09:56:44,448 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 09:56:44,448 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 09:56:44,448 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 09:56:44,448 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 09:56:44,449 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 09:56:44,449 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 09:56:44,449 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 09:56:44,449 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 09:56:44,450 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 09:56:44,450 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 09:56:44,450 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 09:56:44,450 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 09:56:44,450 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 09:56:44,451 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 09:56:44,495 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 09:56:44,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 09:56:44,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 09:56:44,514 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 09:56:44,514 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 09:56:44,515 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label09_true-unreach-call.c [2018-09-19 09:56:44,884 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e018ce7/0835aac28ebf4b788b442ac3ac2b5358/FLAG1e7c9f28b [2018-09-19 09:56:45,177 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 09:56:45,178 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label09_true-unreach-call.c [2018-09-19 09:56:45,200 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e018ce7/0835aac28ebf4b788b442ac3ac2b5358/FLAG1e7c9f28b [2018-09-19 09:56:45,220 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e018ce7/0835aac28ebf4b788b442ac3ac2b5358 [2018-09-19 09:56:45,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 09:56:45,237 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 09:56:45,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 09:56:45,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 09:56:45,248 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 09:56:45,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 09:56:45" (1/1) ... [2018-09-19 09:56:45,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54315448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45, skipping insertion in model container [2018-09-19 09:56:45,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 09:56:45" (1/1) ... [2018-09-19 09:56:45,268 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 09:56:45,743 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 09:56:45,767 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 09:56:45,924 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 09:56:45,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45 WrapperNode [2018-09-19 09:56:45,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 09:56:45,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 09:56:45,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 09:56:45,976 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 09:56:45,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45" (1/1) ... [2018-09-19 09:56:46,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45" (1/1) ... [2018-09-19 09:56:46,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 09:56:46,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 09:56:46,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 09:56:46,077 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 09:56:46,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45" (1/1) ... [2018-09-19 09:56:46,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45" (1/1) ... [2018-09-19 09:56:46,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45" (1/1) ... [2018-09-19 09:56:46,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45" (1/1) ... [2018-09-19 09:56:46,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45" (1/1) ... [2018-09-19 09:56:46,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45" (1/1) ... [2018-09-19 09:56:46,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45" (1/1) ... [2018-09-19 09:56:46,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 09:56:46,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 09:56:46,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 09:56:46,353 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 09:56:46,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45" (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 09:56:46,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 09:56:46,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 09:56:46,445 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 09:56:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 09:56:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 09:56:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 09:56:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 09:56:46,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 09:56:49,718 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 09:56:49,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 09:56:49 BoogieIcfgContainer [2018-09-19 09:56:49,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 09:56:49,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 09:56:49,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 09:56:49,725 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 09:56:49,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 09:56:45" (1/3) ... [2018-09-19 09:56:49,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@677b08c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 09:56:49, skipping insertion in model container [2018-09-19 09:56:49,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:56:45" (2/3) ... [2018-09-19 09:56:49,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@677b08c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 09:56:49, skipping insertion in model container [2018-09-19 09:56:49,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 09:56:49" (3/3) ... [2018-09-19 09:56:49,729 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label09_true-unreach-call.c [2018-09-19 09:56:49,739 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 09:56:49,747 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 09:56:49,804 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 09:56:49,805 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 09:56:49,805 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 09:56:49,805 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 09:56:49,805 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 09:56:49,806 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 09:56:49,806 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 09:56:49,806 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 09:56:49,807 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 09:56:49,835 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 09:56:49,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-09-19 09:56:49,846 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:56:49,847 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, 1] [2018-09-19 09:56:49,849 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:56:49,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1006724975, now seen corresponding path program 1 times [2018-09-19 09:56:49,856 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:56:49,857 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 64 with the following transitions: [2018-09-19 09:56:49,860 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 09:56:49,927 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:56:49,927 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:56:51,480 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:56:51,481 INFO L272 AbstractInterpreter]: Visited 62 different actions 62 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 09:56:51,500 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:56:52,357 INFO L232 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 75.99% of their original sizes. [2018-09-19 09:56:52,358 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:56:52,730 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:56:52,733 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:56:52,734 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 09:56:52,734 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:56:52,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 09:56:52,751 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 09:56:52,752 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 09:56:52,755 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 09:56:57,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:56:57,359 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 09:56:57,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 09:56:57,361 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2018-09-19 09:56:57,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:56:57,378 INFO L225 Difference]: With dead ends: 576 [2018-09-19 09:56:57,378 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 09:56:57,386 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 62 GetRequests, 58 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 09:56:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 09:56:57,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 09:56:57,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 09:56:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 09:56:57,460 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 63 [2018-09-19 09:56:57,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:56:57,461 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 09:56:57,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 09:56:57,461 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 09:56:57,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-19 09:56:57,468 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:56:57,469 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, 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] [2018-09-19 09:56:57,469 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:56:57,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1804038429, now seen corresponding path program 1 times [2018-09-19 09:56:57,470 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:56:57,470 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-09-19 09:56:57,470 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:56:57,477 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:56:57,477 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:56:58,874 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:57:01,851 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:57:01,852 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 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 09:57:01,861 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:57:02,826 INFO L232 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 74.3% of their original sizes. [2018-09-19 09:57:02,826 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:57:03,359 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:57:03,360 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:57:03,360 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:57:03,360 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:57:03,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:57:03,362 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:57:03,362 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:57:03,362 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 09:57:10,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:57:10,367 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 09:57:10,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 09:57:10,372 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2018-09-19 09:57:10,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:57:10,380 INFO L225 Difference]: With dead ends: 717 [2018-09-19 09:57:10,381 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 09:57:10,385 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 140 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 09:57:10,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 09:57:10,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 09:57:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 09:57:10,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 669 transitions. [2018-09-19 09:57:10,424 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 669 transitions. Word has length 134 [2018-09-19 09:57:10,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:57:10,426 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 669 transitions. [2018-09-19 09:57:10,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:57:10,426 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 669 transitions. [2018-09-19 09:57:10,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-09-19 09:57:10,430 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:57:10,430 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, 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] [2018-09-19 09:57:10,431 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:57:10,431 INFO L82 PathProgramCache]: Analyzing trace with hash -213235556, now seen corresponding path program 1 times [2018-09-19 09:57:10,431 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:57:10,432 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-09-19 09:57:10,432 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:57:10,437 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:57:10,437 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:57:15,129 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:57:16,727 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:57:16,727 INFO L272 AbstractInterpreter]: Visited 87 different actions 248 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 09:57:16,748 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:57:17,663 INFO L232 lantSequenceWeakener]: Weakened 141 states. On average, predicates are now at 74.2% of their original sizes. [2018-09-19 09:57:17,663 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:57:18,506 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:57:18,507 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:57:18,507 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 09:57:18,507 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:57:18,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 09:57:18,508 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 09:57:18,508 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 09:57:18,509 INFO L87 Difference]: Start difference. First operand 505 states and 669 transitions. Second operand 13 states. [2018-09-19 09:57:27,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:57:27,742 INFO L93 Difference]: Finished difference Result 1333 states and 2096 transitions. [2018-09-19 09:57:27,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 09:57:27,744 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 143 [2018-09-19 09:57:27,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:57:27,752 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 09:57:27,752 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 09:57:27,755 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 157 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 09:57:27,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 09:57:27,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 09:57:27,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 09:57:27,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 953 transitions. [2018-09-19 09:57:27,799 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 953 transitions. Word has length 143 [2018-09-19 09:57:27,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:57:27,800 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 953 transitions. [2018-09-19 09:57:27,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 09:57:27,800 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 953 transitions. [2018-09-19 09:57:27,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-09-19 09:57:27,805 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:57:27,805 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, 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] [2018-09-19 09:57:27,806 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:57:27,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1373428132, now seen corresponding path program 1 times [2018-09-19 09:57:27,806 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:57:27,806 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-09-19 09:57:27,807 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:57:27,813 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:57:27,813 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:57:30,480 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:57:35,789 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:57:35,790 INFO L272 AbstractInterpreter]: Visited 123 different actions 356 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 09:57:35,795 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:57:36,623 INFO L232 lantSequenceWeakener]: Weakened 177 states. On average, predicates are now at 73.9% of their original sizes. [2018-09-19 09:57:36,623 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:57:36,998 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:57:36,998 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:57:36,999 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 09:57:36,999 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:57:36,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 09:57:37,000 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 09:57:37,000 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 09:57:37,000 INFO L87 Difference]: Start difference. First operand 762 states and 953 transitions. Second operand 12 states. [2018-09-19 09:57:48,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:57:48,184 INFO L93 Difference]: Finished difference Result 1677 states and 2220 transitions. [2018-09-19 09:57:48,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:57:48,186 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 179 [2018-09-19 09:57:48,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:57:48,192 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 09:57:48,193 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 09:57:48,195 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 187 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-19 09:57:48,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 09:57:48,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 09:57:48,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 09:57:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1287 transitions. [2018-09-19 09:57:48,238 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1287 transitions. Word has length 179 [2018-09-19 09:57:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:57:48,238 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1287 transitions. [2018-09-19 09:57:48,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 09:57:48,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1287 transitions. [2018-09-19 09:57:48,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-09-19 09:57:48,242 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:57:48,243 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, 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] [2018-09-19 09:57:48,243 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:57:48,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1760883555, now seen corresponding path program 1 times [2018-09-19 09:57:48,244 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:57:48,244 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-09-19 09:57:48,244 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:57:48,251 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:57:48,251 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:57:57,278 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:57:57,278 INFO L272 AbstractInterpreter]: Visited 142 different actions 413 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 09:57:57,285 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:57:58,121 INFO L232 lantSequenceWeakener]: Weakened 196 states. On average, predicates are now at 73.79% of their original sizes. [2018-09-19 09:57:58,121 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:57:58,490 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:57:58,490 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:57:58,491 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 09:57:58,491 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:57:58,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 09:57:58,491 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 09:57:58,492 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 09:57:58,492 INFO L87 Difference]: Start difference. First operand 1056 states and 1287 transitions. Second operand 12 states. [2018-09-19 09:58:05,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:58:05,461 INFO L93 Difference]: Finished difference Result 2268 states and 2899 transitions. [2018-09-19 09:58:05,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 09:58:05,471 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 198 [2018-09-19 09:58:05,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:58:05,478 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 09:58:05,478 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 09:58:05,482 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 207 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 09:58:05,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 09:58:05,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 09:58:05,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 09:58:05,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1615 transitions. [2018-09-19 09:58:05,534 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1615 transitions. Word has length 198 [2018-09-19 09:58:05,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:58:05,535 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1615 transitions. [2018-09-19 09:58:05,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 09:58:05,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1615 transitions. [2018-09-19 09:58:05,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-09-19 09:58:05,539 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:58:05,539 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:58:05,540 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:58:05,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1022007002, now seen corresponding path program 1 times [2018-09-19 09:58:05,540 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:58:05,541 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-09-19 09:58:05,541 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:58:05,544 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:58:05,544 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:58:07,050 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:58:12,099 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:58:12,099 INFO L272 AbstractInterpreter]: Visited 84 different actions 323 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:58:12,107 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:58:12,962 INFO L232 lantSequenceWeakener]: Weakened 208 states. On average, predicates are now at 73.77% of their original sizes. [2018-09-19 09:58:12,962 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:58:13,226 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:58:13,227 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:58:13,227 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:58:13,227 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:58:13,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:58:13,227 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:58:13,227 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:58:13,228 INFO L87 Difference]: Start difference. First operand 1352 states and 1615 transitions. Second operand 10 states. [2018-09-19 09:58:21,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:58:21,962 INFO L93 Difference]: Finished difference Result 2719 states and 3388 transitions. [2018-09-19 09:58:21,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:58:21,963 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 210 [2018-09-19 09:58:21,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:58:21,971 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 09:58:21,971 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 09:58:21,976 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 217 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 09:58:21,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 09:58:22,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 09:58:22,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 09:58:22,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1792 transitions. [2018-09-19 09:58:22,038 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1792 transitions. Word has length 210 [2018-09-19 09:58:22,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:58:22,039 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1792 transitions. [2018-09-19 09:58:22,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:58:22,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1792 transitions. [2018-09-19 09:58:22,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-09-19 09:58:22,043 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:58:22,043 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:58:22,044 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:58:22,044 INFO L82 PathProgramCache]: Analyzing trace with hash 548154890, now seen corresponding path program 1 times [2018-09-19 09:58:22,044 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:58:22,045 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-09-19 09:58:22,045 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [526], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:58:22,048 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:58:22,048 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:58:23,524 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:58:28,928 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:58:28,928 INFO L272 AbstractInterpreter]: Visited 86 different actions 333 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 09:58:28,933 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:58:29,709 INFO L232 lantSequenceWeakener]: Weakened 210 states. On average, predicates are now at 73.76% of their original sizes. [2018-09-19 09:58:29,709 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:58:29,974 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:58:29,974 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:58:29,974 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:58:29,974 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:58:29,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:58:29,975 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:58:29,975 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:58:29,975 INFO L87 Difference]: Start difference. First operand 1503 states and 1792 transitions. Second operand 10 states. [2018-09-19 09:58:34,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:58:34,400 INFO L93 Difference]: Finished difference Result 3020 states and 3751 transitions. [2018-09-19 09:58:34,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:58:34,405 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2018-09-19 09:58:34,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:58:34,414 INFO L225 Difference]: With dead ends: 3020 [2018-09-19 09:58:34,415 INFO L226 Difference]: Without dead ends: 1671 [2018-09-19 09:58:34,420 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 219 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 09:58:34,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2018-09-19 09:58:34,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1654. [2018-09-19 09:58:34,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2018-09-19 09:58:34,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 1988 transitions. [2018-09-19 09:58:34,492 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 1988 transitions. Word has length 212 [2018-09-19 09:58:34,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:58:34,493 INFO L480 AbstractCegarLoop]: Abstraction has 1654 states and 1988 transitions. [2018-09-19 09:58:34,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:58:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 1988 transitions. [2018-09-19 09:58:34,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-09-19 09:58:34,498 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:58:34,498 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, 3, 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] [2018-09-19 09:58:34,499 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:58:34,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1737244626, now seen corresponding path program 1 times [2018-09-19 09:58:34,499 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:58:34,499 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-09-19 09:58:34,500 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:58:34,502 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:58:34,502 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:58:35,691 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:58:41,058 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:58:41,058 INFO L272 AbstractInterpreter]: Visited 90 different actions 349 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 09:58:41,064 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:58:41,884 INFO L232 lantSequenceWeakener]: Weakened 214 states. On average, predicates are now at 73.74% of their original sizes. [2018-09-19 09:58:41,884 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:58:42,169 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:58:42,170 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:58:42,170 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:58:42,170 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:58:42,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:58:42,171 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:58:42,171 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:58:42,172 INFO L87 Difference]: Start difference. First operand 1654 states and 1988 transitions. Second operand 10 states. [2018-09-19 09:58:49,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:58:49,820 INFO L93 Difference]: Finished difference Result 3477 states and 4328 transitions. [2018-09-19 09:58:49,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:58:49,821 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 216 [2018-09-19 09:58:49,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:58:49,833 INFO L225 Difference]: With dead ends: 3477 [2018-09-19 09:58:49,833 INFO L226 Difference]: Without dead ends: 1977 [2018-09-19 09:58:49,838 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 223 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 09:58:49,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2018-09-19 09:58:49,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1954. [2018-09-19 09:58:49,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2018-09-19 09:58:49,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2362 transitions. [2018-09-19 09:58:49,917 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2362 transitions. Word has length 216 [2018-09-19 09:58:49,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:58:49,918 INFO L480 AbstractCegarLoop]: Abstraction has 1954 states and 2362 transitions. [2018-09-19 09:58:49,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:58:49,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2362 transitions. [2018-09-19 09:58:49,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-09-19 09:58:49,923 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:58:49,923 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, 3, 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] [2018-09-19 09:58:49,923 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:58:49,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1450135938, now seen corresponding path program 1 times [2018-09-19 09:58:49,924 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:58:49,924 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 223 with the following transitions: [2018-09-19 09:58:49,924 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:58:49,927 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:58:49,928 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:58:51,476 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:59:01,088 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:59:01,089 INFO L272 AbstractInterpreter]: Visited 96 different actions 373 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 09:59:01,095 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:59:02,033 INFO L232 lantSequenceWeakener]: Weakened 220 states. On average, predicates are now at 73.71% of their original sizes. [2018-09-19 09:59:02,033 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:59:02,324 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:59:02,325 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:59:02,325 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:59:02,325 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:59:02,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:59:02,326 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:59:02,326 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:59:02,326 INFO L87 Difference]: Start difference. First operand 1954 states and 2362 transitions. Second operand 10 states. [2018-09-19 09:59:09,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:59:09,677 INFO L93 Difference]: Finished difference Result 3932 states and 4909 transitions. [2018-09-19 09:59:09,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:59:09,684 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 222 [2018-09-19 09:59:09,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:59:09,693 INFO L225 Difference]: With dead ends: 3932 [2018-09-19 09:59:09,694 INFO L226 Difference]: Without dead ends: 2132 [2018-09-19 09:59:09,698 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 229 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 09:59:09,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2018-09-19 09:59:09,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2109. [2018-09-19 09:59:09,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2109 states. [2018-09-19 09:59:09,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2577 transitions. [2018-09-19 09:59:09,775 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2577 transitions. Word has length 222 [2018-09-19 09:59:09,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:59:09,776 INFO L480 AbstractCegarLoop]: Abstraction has 2109 states and 2577 transitions. [2018-09-19 09:59:09,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:59:09,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2577 transitions. [2018-09-19 09:59:09,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-09-19 09:59:09,782 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:59:09,782 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, 3, 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] [2018-09-19 09:59:09,783 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:59:09,783 INFO L82 PathProgramCache]: Analyzing trace with hash -204011611, now seen corresponding path program 1 times [2018-09-19 09:59:09,783 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:59:09,783 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 232 with the following transitions: [2018-09-19 09:59:09,784 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [602], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:59:09,787 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:59:09,787 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:59:11,182 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:59:21,442 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:59:21,442 INFO L272 AbstractInterpreter]: Visited 105 different actions 407 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:59:21,448 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:59:22,489 INFO L232 lantSequenceWeakener]: Weakened 229 states. On average, predicates are now at 73.68% of their original sizes. [2018-09-19 09:59:22,489 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:59:22,811 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:59:22,812 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:59:22,812 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 09:59:22,812 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:59:22,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 09:59:22,812 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 09:59:22,813 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 09:59:22,813 INFO L87 Difference]: Start difference. First operand 2109 states and 2577 transitions. Second operand 11 states. [2018-09-19 09:59:28,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:59:28,105 INFO L93 Difference]: Finished difference Result 4320 states and 5463 transitions. [2018-09-19 09:59:28,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 09:59:28,105 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 231 [2018-09-19 09:59:28,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:59:28,114 INFO L225 Difference]: With dead ends: 4320 [2018-09-19 09:59:28,115 INFO L226 Difference]: Without dead ends: 2365 [2018-09-19 09:59:28,119 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 09:59:28,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2018-09-19 09:59:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2262. [2018-09-19 09:59:28,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2018-09-19 09:59:28,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 2792 transitions. [2018-09-19 09:59:28,197 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 2792 transitions. Word has length 231 [2018-09-19 09:59:28,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:59:28,198 INFO L480 AbstractCegarLoop]: Abstraction has 2262 states and 2792 transitions. [2018-09-19 09:59:28,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 09:59:28,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 2792 transitions. [2018-09-19 09:59:28,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-09-19 09:59:28,203 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:59:28,204 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, 3, 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] [2018-09-19 09:59:28,204 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:59:28,204 INFO L82 PathProgramCache]: Analyzing trace with hash 717537937, now seen corresponding path program 1 times [2018-09-19 09:59:28,204 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:59:28,204 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 238 with the following transitions: [2018-09-19 09:59:28,205 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [626], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:59:28,207 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:59:28,207 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:59:29,540 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:59:37,302 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:59:37,303 INFO L272 AbstractInterpreter]: Visited 111 different actions 433 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 09:59:37,311 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:59:38,507 INFO L232 lantSequenceWeakener]: Weakened 235 states. On average, predicates are now at 73.65% of their original sizes. [2018-09-19 09:59:38,507 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:59:38,845 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:59:38,846 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:59:38,846 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 09:59:38,846 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:59:38,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 09:59:38,847 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 09:59:38,847 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 09:59:38,848 INFO L87 Difference]: Start difference. First operand 2262 states and 2792 transitions. Second operand 11 states. [2018-09-19 09:59:47,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:59:47,184 INFO L93 Difference]: Finished difference Result 4808 states and 6139 transitions. [2018-09-19 09:59:47,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 09:59:47,185 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 237 [2018-09-19 09:59:47,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:59:47,193 INFO L225 Difference]: With dead ends: 4808 [2018-09-19 09:59:47,193 INFO L226 Difference]: Without dead ends: 2700 [2018-09-19 09:59:47,197 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 245 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 09:59:47,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2018-09-19 09:59:47,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2670. [2018-09-19 09:59:47,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2670 states. [2018-09-19 09:59:47,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3328 transitions. [2018-09-19 09:59:47,285 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3328 transitions. Word has length 237 [2018-09-19 09:59:47,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:59:47,287 INFO L480 AbstractCegarLoop]: Abstraction has 2670 states and 3328 transitions. [2018-09-19 09:59:47,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 09:59:47,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3328 transitions. [2018-09-19 09:59:47,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-09-19 09:59:47,293 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:59:47,293 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, 3, 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] [2018-09-19 09:59:47,293 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:59:47,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1764441162, now seen corresponding path program 1 times [2018-09-19 09:59:47,293 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:59:47,294 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 245 with the following transitions: [2018-09-19 09:59:47,294 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:59:47,297 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:59:47,297 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:59:48,701 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:59:57,654 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:59:57,654 INFO L272 AbstractInterpreter]: Visited 118 different actions 459 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:59:57,664 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:59:58,610 INFO L232 lantSequenceWeakener]: Weakened 242 states. On average, predicates are now at 73.62% of their original sizes. [2018-09-19 09:59:58,611 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:59:58,989 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:59:58,990 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:59:58,990 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 09:59:58,990 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:59:58,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 09:59:58,991 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 09:59:58,991 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 09:59:58,991 INFO L87 Difference]: Start difference. First operand 2670 states and 3328 transitions. Second operand 11 states. [2018-09-19 10:00:04,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:00:04,282 INFO L93 Difference]: Finished difference Result 5752 states and 7377 transitions. [2018-09-19 10:00:04,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:00:04,283 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 244 [2018-09-19 10:00:04,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:00:04,296 INFO L225 Difference]: With dead ends: 5752 [2018-09-19 10:00:04,296 INFO L226 Difference]: Without dead ends: 3236 [2018-09-19 10:00:04,301 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 252 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 10:00:04,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states. [2018-09-19 10:00:04,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 3129. [2018-09-19 10:00:04,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3129 states. [2018-09-19 10:00:04,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 3930 transitions. [2018-09-19 10:00:04,408 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 3930 transitions. Word has length 244 [2018-09-19 10:00:04,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:00:04,409 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 3930 transitions. [2018-09-19 10:00:04,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 10:00:04,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 3930 transitions. [2018-09-19 10:00:04,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-09-19 10:00:04,416 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:00:04,417 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, 3, 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] [2018-09-19 10:00:04,417 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:00:04,417 INFO L82 PathProgramCache]: Analyzing trace with hash 961463493, now seen corresponding path program 1 times [2018-09-19 10:00:04,418 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:00:04,418 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 248 with the following transitions: [2018-09-19 10:00:04,418 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:00:04,423 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:00:04,423 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:00:05,782 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:00:14,719 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:00:14,719 INFO L272 AbstractInterpreter]: Visited 121 different actions 471 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:00:14,728 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:00:15,833 INFO L232 lantSequenceWeakener]: Weakened 245 states. On average, predicates are now at 73.61% of their original sizes. [2018-09-19 10:00:15,833 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:00:16,306 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:00:16,306 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:00:16,307 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:00:16,307 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:00:16,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:00:16,308 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:00:16,308 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:00:16,308 INFO L87 Difference]: Start difference. First operand 3129 states and 3930 transitions. Second operand 13 states. [2018-09-19 10:00:27,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:00:27,495 INFO L93 Difference]: Finished difference Result 6701 states and 8709 transitions. [2018-09-19 10:00:27,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:00:27,496 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 247 [2018-09-19 10:00:27,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:00:27,509 INFO L225 Difference]: With dead ends: 6701 [2018-09-19 10:00:27,510 INFO L226 Difference]: Without dead ends: 3726 [2018-09-19 10:00:27,515 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 259 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 10:00:27,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2018-09-19 10:00:27,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3529. [2018-09-19 10:00:27,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3529 states. [2018-09-19 10:00:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 4443 transitions. [2018-09-19 10:00:27,631 INFO L78 Accepts]: Start accepts. Automaton has 3529 states and 4443 transitions. Word has length 247 [2018-09-19 10:00:27,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:00:27,632 INFO L480 AbstractCegarLoop]: Abstraction has 3529 states and 4443 transitions. [2018-09-19 10:00:27,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:00:27,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3529 states and 4443 transitions. [2018-09-19 10:00:27,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-09-19 10:00:27,639 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:00:27,640 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, 3, 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] [2018-09-19 10:00:27,640 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:00:27,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1051659692, now seen corresponding path program 1 times [2018-09-19 10:00:27,640 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:00:27,641 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 253 with the following transitions: [2018-09-19 10:00:27,641 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:00:27,644 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:00:27,644 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:00:30,192 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:00:41,239 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:00:41,239 INFO L272 AbstractInterpreter]: Visited 124 different actions 603 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:00:41,246 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:00:42,298 INFO L232 lantSequenceWeakener]: Weakened 250 states. On average, predicates are now at 73.6% of their original sizes. [2018-09-19 10:00:42,299 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:00:42,566 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:00:42,567 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:00:42,567 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:00:42,567 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:00:42,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:00:42,568 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:00:42,568 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:00:42,568 INFO L87 Difference]: Start difference. First operand 3529 states and 4443 transitions. Second operand 10 states. [2018-09-19 10:00:47,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:00:47,693 INFO L93 Difference]: Finished difference Result 7079 states and 9092 transitions. [2018-09-19 10:00:47,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:00:47,695 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 252 [2018-09-19 10:00:47,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:00:47,719 INFO L225 Difference]: With dead ends: 7079 [2018-09-19 10:00:47,722 INFO L226 Difference]: Without dead ends: 3704 [2018-09-19 10:00:47,734 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 259 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 10:00:47,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2018-09-19 10:00:47,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3677. [2018-09-19 10:00:47,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3677 states. [2018-09-19 10:00:47,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3677 states to 3677 states and 4642 transitions. [2018-09-19 10:00:47,881 INFO L78 Accepts]: Start accepts. Automaton has 3677 states and 4642 transitions. Word has length 252 [2018-09-19 10:00:47,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:00:47,882 INFO L480 AbstractCegarLoop]: Abstraction has 3677 states and 4642 transitions. [2018-09-19 10:00:47,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:00:47,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3677 states and 4642 transitions. [2018-09-19 10:00:47,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-09-19 10:00:47,889 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:00:47,889 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, 3, 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] [2018-09-19 10:00:47,890 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:00:47,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1711369822, now seen corresponding path program 1 times [2018-09-19 10:00:47,890 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:00:47,890 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 257 with the following transitions: [2018-09-19 10:00:47,891 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [702], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:00:47,894 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:00:47,895 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:00:49,553 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:01:02,606 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:01:02,606 INFO L272 AbstractInterpreter]: Visited 130 different actions 634 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 10:01:02,614 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:01:03,786 INFO L232 lantSequenceWeakener]: Weakened 254 states. On average, predicates are now at 73.58% of their original sizes. [2018-09-19 10:01:03,787 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:01:04,497 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:01:04,497 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:01:04,498 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:01:04,498 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:01:04,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:01:04,498 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:01:04,498 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:01:04,499 INFO L87 Difference]: Start difference. First operand 3677 states and 4642 transitions. Second operand 13 states. Received shutdown request... [2018-09-19 10:01:05,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 10:01:05,525 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:01:05,531 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:01:05,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:01:05 BoogieIcfgContainer [2018-09-19 10:01:05,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:01:05,533 INFO L168 Benchmark]: Toolchain (without parser) took 260299.24 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 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 813.4 MB. Max. memory is 7.1 GB. [2018-09-19 10:01:05,534 INFO L168 Benchmark]: CDTParser took 0.25 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 10:01:05,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 10:01:05,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.72 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 10:01:05,536 INFO L168 Benchmark]: Boogie Preprocessor took 275.83 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -841.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2018-09-19 10:01:05,537 INFO L168 Benchmark]: RCFGBuilder took 3367.78 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 110.4 MB). Peak memory consumption was 110.4 MB. Max. memory is 7.1 GB. [2018-09-19 10:01:05,538 INFO L168 Benchmark]: TraceAbstraction took 255810.33 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 741.9 MB. Max. memory is 7.1 GB. [2018-09-19 10:01:05,543 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 736.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 100.72 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 275.83 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -841.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3367.78 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 110.4 MB). Peak memory consumption was 110.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 255810.33 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 741.9 MB. 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 (3677states) and FLOYD_HOARE automaton (currently 7 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (58 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 255.7s OverallTime, 15 OverallIterations, 3 TraceHistogramMax, 103.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2721 SDtfs, 10527 SDslu, 5223 SDs, 0 SdLazy, 27790 SolverSat, 2524 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 90.2s Time, PredicateUnifierStatistics: 30 DeclaredPredicates, 3154 GetRequests, 2897 SyntacticMatches, 0 SemanticMatches, 257 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 10.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3677occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 130.3s AbstIntTime, 15 AbstIntIterations, 15 AbstIntStrong, 0.9946632486751931 AbsIntWeakeningRatio, 0.11687025420931 AbsIntAvgWeakeningVarsNumRemoved, 880.3542423241994 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 792 StatesRemovedByMinimization, 14 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/Problem10_label09_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-01-05-559.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label09_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-01-05-559.csv Completed graceful shutdown