java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label22_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:25:43,125 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:25:43,128 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:25:43,141 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:25:43,141 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:25:43,142 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:25:43,143 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:25:43,145 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:25:43,146 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:25:43,148 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:25:43,149 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:25:43,149 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:25:43,150 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:25:43,151 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:25:43,152 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:25:43,153 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:25:43,154 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:25:43,156 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:25:43,158 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:25:43,159 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:25:43,160 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:25:43,162 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:25:43,164 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 15:25:43,164 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 15:25:43,164 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 15:25:43,165 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 15:25:43,166 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 15:25:43,167 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 15:25:43,168 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 15:25:43,169 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 15:25:43,169 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 15:25:43,170 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 15:25:43,170 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:25:43,171 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:25:43,171 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:25:43,172 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:25:43,172 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 15:25:43,194 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:25:43,195 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:25:43,196 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:25:43,196 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:25:43,197 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:25:43,197 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:25:43,197 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 15:25:43,197 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:25:43,197 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:25:43,198 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 15:25:43,198 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:25:43,198 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:25:43,199 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:25:43,199 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:25:43,200 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:25:43,200 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:25:43,200 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:25:43,200 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:25:43,200 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:25:43,200 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:25:43,201 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:25:43,201 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:25:43,201 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:25:43,201 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:25:43,203 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:25:43,203 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:25:43,203 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:25:43,203 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:25:43,204 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:25:43,204 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:25:43,204 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:25:43,204 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:25:43,205 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:25:43,205 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:25:43,267 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:25:43,284 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:25:43,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:25:43,291 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:25:43,292 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:25:43,292 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label22_true-unreach-call.c [2018-09-15 15:25:43,655 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b760b0497/ef0730be57234d44b7ff3e6a501aa64a/FLAG0ed78c7e8 [2018-09-15 15:25:44,101 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:25:44,103 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label22_true-unreach-call.c [2018-09-15 15:25:44,130 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b760b0497/ef0730be57234d44b7ff3e6a501aa64a/FLAG0ed78c7e8 [2018-09-15 15:25:44,153 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b760b0497/ef0730be57234d44b7ff3e6a501aa64a [2018-09-15 15:25:44,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:25:44,172 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:25:44,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:25:44,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:25:44,183 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:25:44,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:25:44" (1/1) ... [2018-09-15 15:25:44,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f06a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:44, skipping insertion in model container [2018-09-15 15:25:44,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:25:44" (1/1) ... [2018-09-15 15:25:44,201 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:25:45,209 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:25:45,228 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:25:45,659 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:25:45,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:45 WrapperNode [2018-09-15 15:25:45,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:25:45,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:25:45,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:25:45,904 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:25:45,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:45" (1/1) ... [2018-09-15 15:25:46,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:45" (1/1) ... [2018-09-15 15:25:46,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:25:46,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:25:46,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:25:46,211 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:25:46,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:45" (1/1) ... [2018-09-15 15:25:46,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:45" (1/1) ... [2018-09-15 15:25:46,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:45" (1/1) ... [2018-09-15 15:25:46,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:45" (1/1) ... [2018-09-15 15:25:46,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:45" (1/1) ... [2018-09-15 15:25:46,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:45" (1/1) ... [2018-09-15 15:25:47,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:45" (1/1) ... [2018-09-15 15:25:47,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:25:47,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:25:47,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:25:47,067 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:25:47,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:45" (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 [2018-09-15 15:25:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:25:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:25:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 15:25:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 15:25:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 15:25:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 15:25:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:25:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:25:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:25:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:26:01,417 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:26:01,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:26:01 BoogieIcfgContainer [2018-09-15 15:26:01,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:26:01,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:26:01,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:26:01,423 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:26:01,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:25:44" (1/3) ... [2018-09-15 15:26:01,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d8b255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:26:01, skipping insertion in model container [2018-09-15 15:26:01,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:25:45" (2/3) ... [2018-09-15 15:26:01,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d8b255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:26:01, skipping insertion in model container [2018-09-15 15:26:01,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:26:01" (3/3) ... [2018-09-15 15:26:01,426 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label22_true-unreach-call.c [2018-09-15 15:26:01,436 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:26:01,445 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:26:01,504 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:26:01,504 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:26:01,505 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:26:01,505 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:26:01,505 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:26:01,505 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:26:01,505 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:26:01,505 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:26:01,506 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:26:01,553 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-15 15:26:01,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-15 15:26:01,561 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:26:01,562 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] [2018-09-15 15:26:01,563 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:26:01,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1623542220, now seen corresponding path program 1 times [2018-09-15 15:26:01,569 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:26:01,570 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 59 with the following transitions: [2018-09-15 15:26:01,573 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1074], [1076], [2283], [2287], [2293], [2297], [2306], [2307], [2308], [2310] [2018-09-15 15:26:01,614 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:26:01,614 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:26:02,935 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:26:02,938 INFO L272 AbstractInterpreter]: Visited 57 different actions 57 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 15:26:02,981 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:26:03,798 INFO L232 lantSequenceWeakener]: Weakened 55 states. On average, predicates are now at 77.51% of their original sizes. [2018-09-15 15:26:03,799 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:26:03,916 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:26:03,918 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:26:03,918 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 15:26:03,918 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:26:03,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 15:26:03,931 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 15:26:03,932 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:26:03,935 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-09-15 15:26:14,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:26:14,630 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-09-15 15:26:14,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 15:26:14,632 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2018-09-15 15:26:14,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:26:14,656 INFO L225 Difference]: With dead ends: 1642 [2018-09-15 15:26:14,656 INFO L226 Difference]: Without dead ends: 1036 [2018-09-15 15:26:14,664 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:26:14,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-09-15 15:26:14,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-09-15 15:26:14,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-09-15 15:26:14,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-09-15 15:26:14,780 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 58 [2018-09-15 15:26:14,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:26:14,780 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-09-15 15:26:14,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 15:26:14,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-09-15 15:26:14,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-09-15 15:26:14,788 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:26:14,788 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:26:14,789 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:26:14,789 INFO L82 PathProgramCache]: Analyzing trace with hash 429401034, now seen corresponding path program 1 times [2018-09-15 15:26:14,789 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:26:14,790 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 134 with the following transitions: [2018-09-15 15:26:14,790 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1074], [1076], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:26:14,798 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:26:14,800 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:26:17,101 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:26:20,092 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:26:20,093 INFO L272 AbstractInterpreter]: Visited 82 different actions 157 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 15:26:20,097 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:26:23,227 INFO L232 lantSequenceWeakener]: Weakened 130 states. On average, predicates are now at 76.15% of their original sizes. [2018-09-15 15:26:23,227 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:26:23,433 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:26:23,433 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:26:23,433 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 15:26:23,433 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:26:23,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 15:26:23,435 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 15:26:23,435 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 15:26:23,435 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 11 states. [2018-09-15 15:26:40,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:26:40,134 INFO L93 Difference]: Finished difference Result 2502 states and 4301 transitions. [2018-09-15 15:26:40,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 15:26:40,135 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 133 [2018-09-15 15:26:40,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:26:40,148 INFO L225 Difference]: With dead ends: 2502 [2018-09-15 15:26:40,148 INFO L226 Difference]: Without dead ends: 1908 [2018-09-15 15:26:40,153 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 139 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 15:26:40,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2018-09-15 15:26:40,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1905. [2018-09-15 15:26:40,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1905 states. [2018-09-15 15:26:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2402 transitions. [2018-09-15 15:26:40,232 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2402 transitions. Word has length 133 [2018-09-15 15:26:40,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:26:40,233 INFO L480 AbstractCegarLoop]: Abstraction has 1905 states and 2402 transitions. [2018-09-15 15:26:40,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 15:26:40,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2402 transitions. [2018-09-15 15:26:40,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-15 15:26:40,248 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:26:40,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:26:40,249 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:26:40,249 INFO L82 PathProgramCache]: Analyzing trace with hash -499815646, now seen corresponding path program 1 times [2018-09-15 15:26:40,250 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:26:40,250 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-09-15 15:26:40,250 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1074], [1076], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:26:40,259 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:26:40,260 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:26:43,560 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:26:52,126 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:26:52,126 INFO L272 AbstractInterpreter]: Visited 95 different actions 184 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 15:26:52,134 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:27:01,448 INFO L232 lantSequenceWeakener]: Weakened 143 states. On average, predicates are now at 76.05% of their original sizes. [2018-09-15 15:27:01,449 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:27:01,581 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:27:01,581 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:27:01,581 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 15:27:01,582 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:27:01,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 15:27:01,582 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 15:27:01,583 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 15:27:01,583 INFO L87 Difference]: Start difference. First operand 1905 states and 2402 transitions. Second operand 11 states. [2018-09-15 15:27:12,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:27:12,441 INFO L93 Difference]: Finished difference Result 2938 states and 4330 transitions. [2018-09-15 15:27:12,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 15:27:12,442 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 146 [2018-09-15 15:27:12,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:27:12,457 INFO L225 Difference]: With dead ends: 2938 [2018-09-15 15:27:12,458 INFO L226 Difference]: Without dead ends: 2344 [2018-09-15 15:27:12,461 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-15 15:27:12,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2018-09-15 15:27:12,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 2341. [2018-09-15 15:27:12,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2341 states. [2018-09-15 15:27:12,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2341 states to 2341 states and 2853 transitions. [2018-09-15 15:27:12,524 INFO L78 Accepts]: Start accepts. Automaton has 2341 states and 2853 transitions. Word has length 146 [2018-09-15 15:27:12,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:27:12,525 INFO L480 AbstractCegarLoop]: Abstraction has 2341 states and 2853 transitions. [2018-09-15 15:27:12,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 15:27:12,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2341 states and 2853 transitions. [2018-09-15 15:27:12,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-09-15 15:27:12,533 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:27:12,534 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:27:12,534 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:27:12,535 INFO L82 PathProgramCache]: Analyzing trace with hash -956217672, now seen corresponding path program 1 times [2018-09-15 15:27:12,535 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:27:12,535 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-09-15 15:27:12,537 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1074], [1076], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:27:12,543 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:27:12,544 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:27:13,772 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:27:41,433 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:27:41,433 INFO L272 AbstractInterpreter]: Visited 96 different actions 465 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 15:27:41,447 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:27:51,016 INFO L232 lantSequenceWeakener]: Weakened 218 states. On average, predicates are now at 75.74% of their original sizes. [2018-09-15 15:27:51,016 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:27:51,213 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:27:51,214 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:27:51,214 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 15:27:51,214 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:27:51,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 15:27:51,216 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 15:27:51,216 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-15 15:27:51,216 INFO L87 Difference]: Start difference. First operand 2341 states and 2853 transitions. Second operand 13 states. [2018-09-15 15:28:02,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:28:02,776 INFO L93 Difference]: Finished difference Result 3487 states and 4982 transitions. [2018-09-15 15:28:02,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 15:28:02,777 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 221 [2018-09-15 15:28:02,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:28:02,791 INFO L225 Difference]: With dead ends: 3487 [2018-09-15 15:28:02,791 INFO L226 Difference]: Without dead ends: 2893 [2018-09-15 15:28:02,795 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 232 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2018-09-15 15:28:02,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2018-09-15 15:28:02,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2888. [2018-09-15 15:28:02,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2888 states. [2018-09-15 15:28:02,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3487 transitions. [2018-09-15 15:28:02,867 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3487 transitions. Word has length 221 [2018-09-15 15:28:02,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:28:02,867 INFO L480 AbstractCegarLoop]: Abstraction has 2888 states and 3487 transitions. [2018-09-15 15:28:02,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-15 15:28:02,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3487 transitions. [2018-09-15 15:28:02,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-09-15 15:28:02,873 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:28:02,873 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:28:02,873 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:28:02,874 INFO L82 PathProgramCache]: Analyzing trace with hash 175110845, now seen corresponding path program 1 times [2018-09-15 15:28:02,874 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:28:02,874 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-09-15 15:28:02,875 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1074], [1076], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:28:02,878 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:28:02,878 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:28:05,882 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:29:06,486 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:29:06,486 INFO L272 AbstractInterpreter]: Visited 96 different actions 280 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-15 15:29:06,509 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:29:29,403 INFO L232 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 75.7% of their original sizes. [2018-09-15 15:29:29,404 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:29:29,524 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:29:29,524 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:29:29,524 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 15:29:29,525 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:29:29,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 15:29:29,525 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 15:29:29,525 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 15:29:29,526 INFO L87 Difference]: Start difference. First operand 2888 states and 3487 transitions. Second operand 10 states. [2018-09-15 15:29:38,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:29:38,652 INFO L93 Difference]: Finished difference Result 3924 states and 5421 transitions. [2018-09-15 15:29:38,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 15:29:38,653 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 233 [2018-09-15 15:29:38,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:29:38,669 INFO L225 Difference]: With dead ends: 3924 [2018-09-15 15:29:38,670 INFO L226 Difference]: Without dead ends: 3330 [2018-09-15 15:29:38,674 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-15 15:29:38,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2018-09-15 15:29:38,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3322. [2018-09-15 15:29:38,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3322 states. [2018-09-15 15:29:38,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3322 states to 3322 states and 3960 transitions. [2018-09-15 15:29:38,765 INFO L78 Accepts]: Start accepts. Automaton has 3322 states and 3960 transitions. Word has length 233 [2018-09-15 15:29:38,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:29:38,766 INFO L480 AbstractCegarLoop]: Abstraction has 3322 states and 3960 transitions. [2018-09-15 15:29:38,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 15:29:38,767 INFO L276 IsEmpty]: Start isEmpty. Operand 3322 states and 3960 transitions. [2018-09-15 15:29:38,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-09-15 15:29:38,773 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:29:38,774 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:29:38,774 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:29:38,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1463101031, now seen corresponding path program 1 times [2018-09-15 15:29:38,774 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:29:38,775 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 309 with the following transitions: [2018-09-15 15:29:38,775 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1074], [1076], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:29:38,778 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:29:38,778 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:29:40,115 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown