java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label11_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 13:00:35,239 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 13:00:35,241 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 13:00:35,253 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 13:00:35,254 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 13:00:35,255 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 13:00:35,256 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 13:00:35,258 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 13:00:35,259 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 13:00:35,260 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 13:00:35,261 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 13:00:35,261 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 13:00:35,262 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 13:00:35,263 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 13:00:35,264 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 13:00:35,265 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 13:00:35,266 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 13:00:35,268 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 13:00:35,270 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 13:00:35,271 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 13:00:35,273 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 13:00:35,274 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 13:00:35,276 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 13:00:35,277 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 13:00:35,277 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 13:00:35,278 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 13:00:35,279 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 13:00:35,280 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 13:00:35,281 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 13:00:35,282 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 13:00:35,282 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 13:00:35,283 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 13:00:35,283 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 13:00:35,283 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 13:00:35,284 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 13:00:35,287 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 13:00:35,287 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-19 13:00:35,313 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 13:00:35,313 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 13:00:35,314 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 13:00:35,314 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 13:00:35,314 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 13:00:35,315 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 13:00:35,315 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 13:00:35,315 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 13:00:35,315 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 13:00:35,315 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 13:00:35,316 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 13:00:35,316 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 13:00:35,316 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 13:00:35,317 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 13:00:35,317 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 13:00:35,317 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 13:00:35,317 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 13:00:35,317 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 13:00:35,318 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 13:00:35,318 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 13:00:35,318 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 13:00:35,318 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 13:00:35,318 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 13:00:35,318 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 13:00:35,319 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 13:00:35,319 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 13:00:35,319 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 13:00:35,319 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 13:00:35,319 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 13:00:35,320 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 13:00:35,320 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 13:00:35,320 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 13:00:35,320 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 13:00:35,320 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 13:00:35,381 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 13:00:35,393 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 13:00:35,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 13:00:35,401 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 13:00:35,401 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 13:00:35,402 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label11_true-unreach-call.c [2018-09-19 13:00:35,754 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a966f5ddb/2ab02ae73fd341ae83578690b696b74c/FLAG3d3f019ae [2018-09-19 13:00:36,172 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 13:00:36,174 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label11_true-unreach-call.c [2018-09-19 13:00:36,196 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a966f5ddb/2ab02ae73fd341ae83578690b696b74c/FLAG3d3f019ae [2018-09-19 13:00:36,221 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a966f5ddb/2ab02ae73fd341ae83578690b696b74c [2018-09-19 13:00:36,234 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 13:00:36,238 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 13:00:36,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 13:00:36,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 13:00:36,247 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 13:00:36,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:00:36" (1/1) ... [2018-09-19 13:00:36,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17fd54c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:36, skipping insertion in model container [2018-09-19 13:00:36,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:00:36" (1/1) ... [2018-09-19 13:00:36,263 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 13:00:37,099 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 13:00:37,117 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 13:00:37,396 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 13:00:37,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:37 WrapperNode [2018-09-19 13:00:37,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 13:00:37,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 13:00:37,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 13:00:37,551 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 13:00:37,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:37" (1/1) ... [2018-09-19 13:00:37,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:37" (1/1) ... [2018-09-19 13:00:37,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 13:00:37,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 13:00:37,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 13:00:37,793 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 13:00:38,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:37" (1/1) ... [2018-09-19 13:00:38,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:37" (1/1) ... [2018-09-19 13:00:38,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:37" (1/1) ... [2018-09-19 13:00:38,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:37" (1/1) ... [2018-09-19 13:00:38,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:37" (1/1) ... [2018-09-19 13:00:38,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:37" (1/1) ... [2018-09-19 13:00:38,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:37" (1/1) ... [2018-09-19 13:00:38,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 13:00:38,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 13:00:38,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 13:00:38,507 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 13:00:38,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 13:00:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 13:00:38,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 13:00:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 13:00:38,582 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 13:00:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 13:00:38,582 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 13:00:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 13:00:38,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 13:00:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 13:00:38,583 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 13:00:47,841 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 13:00:47,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:00:47 BoogieIcfgContainer [2018-09-19 13:00:47,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 13:00:47,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 13:00:47,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 13:00:47,848 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 13:00:47,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:00:36" (1/3) ... [2018-09-19 13:00:47,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12471b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:00:47, skipping insertion in model container [2018-09-19 13:00:47,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:00:37" (2/3) ... [2018-09-19 13:00:47,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12471b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:00:47, skipping insertion in model container [2018-09-19 13:00:47,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:00:47" (3/3) ... [2018-09-19 13:00:47,856 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label11_true-unreach-call.c [2018-09-19 13:00:47,867 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 13:00:47,877 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 13:00:47,942 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 13:00:47,943 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 13:00:47,943 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 13:00:47,943 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 13:00:47,944 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 13:00:47,944 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 13:00:47,944 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 13:00:47,944 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 13:00:47,944 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 13:00:47,987 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-19 13:00:47,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-19 13:00:47,998 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:00:47,999 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:00:48,000 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:00:48,005 INFO L82 PathProgramCache]: Analyzing trace with hash -383317628, now seen corresponding path program 1 times [2018-09-19 13:00:48,007 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:00:48,008 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 63 with the following transitions: [2018-09-19 13:00:48,010 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-19 13:00:48,057 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:00:48,057 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:00:48,367 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:00:48,372 INFO L272 AbstractInterpreter]: Visited 61 different actions 61 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 13:00:48,423 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:00:48,667 INFO L232 lantSequenceWeakener]: Weakened 59 states. On average, predicates are now at 80.4% of their original sizes. [2018-09-19 13:00:48,667 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:00:48,962 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:00:48,964 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:00:48,965 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 13:00:48,965 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:00:48,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 13:00:48,979 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 13:00:48,980 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 13:00:48,983 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-19 13:00:56,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:00:56,837 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-19 13:00:56,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 13:00:56,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2018-09-19 13:00:56,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:00:56,861 INFO L225 Difference]: With dead ends: 1184 [2018-09-19 13:00:56,861 INFO L226 Difference]: Without dead ends: 744 [2018-09-19 13:00:56,875 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 13:00:56,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-19 13:00:56,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-19 13:00:56,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-19 13:00:56,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-19 13:00:56,976 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 62 [2018-09-19 13:00:56,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:00:56,977 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-19 13:00:56,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 13:00:56,977 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-19 13:00:56,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-09-19 13:00:56,991 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:00:56,992 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:00:56,992 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:00:56,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1659206605, now seen corresponding path program 1 times [2018-09-19 13:00:56,993 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:00:56,993 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 159 with the following transitions: [2018-09-19 13:00:56,995 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:00:57,001 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:00:57,001 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:00:57,116 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:00:57,249 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:00:57,249 INFO L272 AbstractInterpreter]: Visited 103 different actions 296 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 13:00:57,288 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:00:57,513 INFO L232 lantSequenceWeakener]: Weakened 155 states. On average, predicates are now at 78.52% of their original sizes. [2018-09-19 13:00:57,514 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:00:58,112 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:00:58,112 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:00:58,112 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:00:58,112 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:00:58,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:00:58,114 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:00:58,114 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:00:58,115 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 10 states. [2018-09-19 13:01:11,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:01:11,232 INFO L93 Difference]: Finished difference Result 1490 states and 2443 transitions. [2018-09-19 13:01:11,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:01:11,232 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2018-09-19 13:01:11,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:01:11,241 INFO L225 Difference]: With dead ends: 1490 [2018-09-19 13:01:11,241 INFO L226 Difference]: Without dead ends: 1062 [2018-09-19 13:01:11,245 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 164 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:01:11,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2018-09-19 13:01:11,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1057. [2018-09-19 13:01:11,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2018-09-19 13:01:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1402 transitions. [2018-09-19 13:01:11,298 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1402 transitions. Word has length 158 [2018-09-19 13:01:11,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:01:11,299 INFO L480 AbstractCegarLoop]: Abstraction has 1057 states and 1402 transitions. [2018-09-19 13:01:11,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:01:11,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1402 transitions. [2018-09-19 13:01:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-09-19 13:01:11,309 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:01:11,310 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:01:11,311 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:01:11,311 INFO L82 PathProgramCache]: Analyzing trace with hash 939179250, now seen corresponding path program 1 times [2018-09-19 13:01:11,311 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:01:11,311 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 338 with the following transitions: [2018-09-19 13:01:11,312 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:01:11,323 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:01:11,324 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:01:11,752 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:01:12,119 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:01:12,119 INFO L272 AbstractInterpreter]: Visited 282 different actions 833 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 13:01:12,158 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:01:12,615 INFO L232 lantSequenceWeakener]: Weakened 334 states. On average, predicates are now at 77.85% of their original sizes. [2018-09-19 13:01:12,615 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:01:12,857 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:01:12,857 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:01:12,858 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:01:12,858 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:01:12,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:01:12,859 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:01:12,860 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:01:12,860 INFO L87 Difference]: Start difference. First operand 1057 states and 1402 transitions. Second operand 10 states. [2018-09-19 13:01:18,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:01:18,601 INFO L93 Difference]: Finished difference Result 1799 states and 2766 transitions. [2018-09-19 13:01:18,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:01:18,610 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 337 [2018-09-19 13:01:18,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:01:18,619 INFO L225 Difference]: With dead ends: 1799 [2018-09-19 13:01:18,619 INFO L226 Difference]: Without dead ends: 1371 [2018-09-19 13:01:18,622 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 343 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:01:18,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2018-09-19 13:01:18,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1368. [2018-09-19 13:01:18,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1368 states. [2018-09-19 13:01:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1728 transitions. [2018-09-19 13:01:18,664 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1728 transitions. Word has length 337 [2018-09-19 13:01:18,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:01:18,665 INFO L480 AbstractCegarLoop]: Abstraction has 1368 states and 1728 transitions. [2018-09-19 13:01:18,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:01:18,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1728 transitions. [2018-09-19 13:01:18,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-09-19 13:01:18,682 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:01:18,682 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:01:18,683 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:01:18,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1853896762, now seen corresponding path program 1 times [2018-09-19 13:01:18,683 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:01:18,683 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 350 with the following transitions: [2018-09-19 13:01:18,684 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:01:18,693 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:01:18,693 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:01:18,954 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:01:19,432 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:01:19,432 INFO L272 AbstractInterpreter]: Visited 294 different actions 869 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 13:01:19,458 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:01:19,887 INFO L232 lantSequenceWeakener]: Weakened 346 states. On average, predicates are now at 77.83% of their original sizes. [2018-09-19 13:01:19,887 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:01:20,122 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:01:20,123 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:01:20,123 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:01:20,123 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:01:20,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:01:20,125 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:01:20,125 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:01:20,125 INFO L87 Difference]: Start difference. First operand 1368 states and 1728 transitions. Second operand 10 states. [2018-09-19 13:01:26,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:01:26,065 INFO L93 Difference]: Finished difference Result 2110 states and 3092 transitions. [2018-09-19 13:01:26,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:01:26,067 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 349 [2018-09-19 13:01:26,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:01:26,076 INFO L225 Difference]: With dead ends: 2110 [2018-09-19 13:01:26,077 INFO L226 Difference]: Without dead ends: 1682 [2018-09-19 13:01:26,079 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 355 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:01:26,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2018-09-19 13:01:26,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1678. [2018-09-19 13:01:26,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1678 states. [2018-09-19 13:01:26,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 2057 transitions. [2018-09-19 13:01:26,120 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 2057 transitions. Word has length 349 [2018-09-19 13:01:26,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:01:26,121 INFO L480 AbstractCegarLoop]: Abstraction has 1678 states and 2057 transitions. [2018-09-19 13:01:26,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:01:26,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 2057 transitions. [2018-09-19 13:01:26,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2018-09-19 13:01:26,130 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:01:26,130 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:01:26,131 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:01:26,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1230814021, now seen corresponding path program 1 times [2018-09-19 13:01:26,131 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:01:26,131 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 420 with the following transitions: [2018-09-19 13:01:26,132 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:01:26,138 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:01:26,138 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:01:26,477 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:01:27,365 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:01:27,365 INFO L272 AbstractInterpreter]: Visited 295 different actions 1458 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 13:01:27,393 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:01:27,886 INFO L232 lantSequenceWeakener]: Weakened 416 states. On average, predicates are now at 77.76% of their original sizes. [2018-09-19 13:01:27,886 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:01:28,083 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:01:28,083 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:01:28,083 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:01:28,084 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:01:28,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:01:28,084 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:01:28,085 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:01:28,085 INFO L87 Difference]: Start difference. First operand 1678 states and 2057 transitions. Second operand 10 states. [2018-09-19 13:01:35,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:01:35,886 INFO L93 Difference]: Finished difference Result 2764 states and 3783 transitions. [2018-09-19 13:01:35,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:01:35,891 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 419 [2018-09-19 13:01:35,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:01:35,901 INFO L225 Difference]: With dead ends: 2764 [2018-09-19 13:01:35,902 INFO L226 Difference]: Without dead ends: 2336 [2018-09-19 13:01:35,904 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 425 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:01:35,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2018-09-19 13:01:35,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2330. [2018-09-19 13:01:35,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2330 states. [2018-09-19 13:01:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 2771 transitions. [2018-09-19 13:01:35,955 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 2771 transitions. Word has length 419 [2018-09-19 13:01:35,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:01:35,956 INFO L480 AbstractCegarLoop]: Abstraction has 2330 states and 2771 transitions. [2018-09-19 13:01:35,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:01:35,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 2771 transitions. [2018-09-19 13:01:35,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2018-09-19 13:01:35,964 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:01:35,965 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:01:35,965 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:01:35,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1446382830, now seen corresponding path program 1 times [2018-09-19 13:01:35,966 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:01:35,966 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 428 with the following transitions: [2018-09-19 13:01:35,967 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [605], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:01:35,973 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:01:35,973 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:01:36,167 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:01:36,985 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:01:36,986 INFO L272 AbstractInterpreter]: Visited 295 different actions 1167 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 13:01:37,019 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:01:37,569 INFO L232 lantSequenceWeakener]: Weakened 424 states. On average, predicates are now at 77.75% of their original sizes. [2018-09-19 13:01:37,569 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:01:37,768 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:01:37,769 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:01:37,769 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:01:37,769 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:01:37,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:01:37,770 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:01:37,770 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:01:37,770 INFO L87 Difference]: Start difference. First operand 2330 states and 2771 transitions. Second operand 10 states. [2018-09-19 13:01:42,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:01:42,997 INFO L93 Difference]: Finished difference Result 3099 states and 4164 transitions. [2018-09-19 13:01:43,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:01:43,004 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 427 [2018-09-19 13:01:43,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:01:43,016 INFO L225 Difference]: With dead ends: 3099 [2018-09-19 13:01:43,017 INFO L226 Difference]: Without dead ends: 2671 [2018-09-19 13:01:43,020 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 433 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:01:43,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2018-09-19 13:01:43,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2665. [2018-09-19 13:01:43,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2665 states. [2018-09-19 13:01:43,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3152 transitions. [2018-09-19 13:01:43,078 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3152 transitions. Word has length 427 [2018-09-19 13:01:43,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:01:43,079 INFO L480 AbstractCegarLoop]: Abstraction has 2665 states and 3152 transitions. [2018-09-19 13:01:43,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:01:43,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3152 transitions. [2018-09-19 13:01:43,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2018-09-19 13:01:43,085 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:01:43,085 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:01:43,086 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:01:43,086 INFO L82 PathProgramCache]: Analyzing trace with hash 260590601, now seen corresponding path program 1 times [2018-09-19 13:01:43,086 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:01:43,086 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 434 with the following transitions: [2018-09-19 13:01:43,087 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:01:43,091 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:01:43,092 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:01:43,135 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:01:43,651 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:01:43,651 INFO L272 AbstractInterpreter]: Visited 283 different actions 1123 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:01:43,658 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:01:44,018 INFO L232 lantSequenceWeakener]: Weakened 430 states. On average, predicates are now at 77.74% of their original sizes. [2018-09-19 13:01:44,018 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:01:44,122 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:01:44,123 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:01:44,123 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:01:44,123 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:01:44,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:01:44,125 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:01:44,126 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:01:44,126 INFO L87 Difference]: Start difference. First operand 2665 states and 3152 transitions. Second operand 10 states. [2018-09-19 13:01:52,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:01:52,934 INFO L93 Difference]: Finished difference Result 3423 states and 4534 transitions. [2018-09-19 13:01:52,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:01:52,934 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 433 [2018-09-19 13:01:52,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:01:52,949 INFO L225 Difference]: With dead ends: 3423 [2018-09-19 13:01:52,949 INFO L226 Difference]: Without dead ends: 2995 [2018-09-19 13:01:52,952 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 439 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:01:52,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2018-09-19 13:01:53,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2990. [2018-09-19 13:01:53,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2990 states. [2018-09-19 13:01:53,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 3506 transitions. [2018-09-19 13:01:53,019 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 3506 transitions. Word has length 433 [2018-09-19 13:01:53,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:01:53,020 INFO L480 AbstractCegarLoop]: Abstraction has 2990 states and 3506 transitions. [2018-09-19 13:01:53,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:01:53,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 3506 transitions. [2018-09-19 13:01:53,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2018-09-19 13:01:53,030 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:01:53,031 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:01:53,031 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:01:53,031 INFO L82 PathProgramCache]: Analyzing trace with hash -118170415, now seen corresponding path program 1 times [2018-09-19 13:01:53,032 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:01:53,032 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 446 with the following transitions: [2018-09-19 13:01:53,032 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:01:53,038 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:01:53,039 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:01:53,082 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:01:53,798 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:01:53,798 INFO L272 AbstractInterpreter]: Visited 295 different actions 1461 times. Merged at 7 different actions 30 times. Never widened. Found 6 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:01:53,805 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:01:54,174 INFO L232 lantSequenceWeakener]: Weakened 442 states. On average, predicates are now at 77.73% of their original sizes. [2018-09-19 13:01:54,175 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:01:54,302 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:01:54,303 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:01:54,303 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:01:54,303 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:01:54,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:01:54,304 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:01:54,304 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:01:54,304 INFO L87 Difference]: Start difference. First operand 2990 states and 3506 transitions. Second operand 10 states. [2018-09-19 13:02:00,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:02:00,984 INFO L93 Difference]: Finished difference Result 3768 states and 4910 transitions. [2018-09-19 13:02:00,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:02:00,986 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 445 [2018-09-19 13:02:00,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:02:00,999 INFO L225 Difference]: With dead ends: 3768 [2018-09-19 13:02:00,999 INFO L226 Difference]: Without dead ends: 3340 [2018-09-19 13:02:01,002 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 451 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:02:01,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2018-09-19 13:02:01,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 3327. [2018-09-19 13:02:01,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3327 states. [2018-09-19 13:02:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 3891 transitions. [2018-09-19 13:02:01,068 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 3891 transitions. Word has length 445 [2018-09-19 13:02:01,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:02:01,069 INFO L480 AbstractCegarLoop]: Abstraction has 3327 states and 3891 transitions. [2018-09-19 13:02:01,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:02:01,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 3891 transitions. [2018-09-19 13:02:01,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2018-09-19 13:02:01,075 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:02:01,076 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:02:01,076 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:02:01,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1258199524, now seen corresponding path program 1 times [2018-09-19 13:02:01,076 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:02:01,077 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 462 with the following transitions: [2018-09-19 13:02:01,077 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:02:01,082 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:02:01,082 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:02:01,263 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:02:03,758 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:02:03,759 INFO L272 AbstractInterpreter]: Visited 295 different actions 1750 times. Merged at 7 different actions 35 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:02:03,773 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:02:04,403 INFO L232 lantSequenceWeakener]: Weakened 458 states. On average, predicates are now at 77.72% of their original sizes. [2018-09-19 13:02:04,404 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:02:04,504 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:02:04,505 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:02:04,505 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:02:04,505 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:02:04,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:02:04,506 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:02:04,506 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:02:04,506 INFO L87 Difference]: Start difference. First operand 3327 states and 3891 transitions. Second operand 10 states. [2018-09-19 13:02:13,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:02:13,132 INFO L93 Difference]: Finished difference Result 4111 states and 5313 transitions. [2018-09-19 13:02:13,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 13:02:13,133 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 461 [2018-09-19 13:02:13,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:02:13,149 INFO L225 Difference]: With dead ends: 4111 [2018-09-19 13:02:13,149 INFO L226 Difference]: Without dead ends: 3683 [2018-09-19 13:02:13,153 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 467 GetRequests, 452 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:02:13,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3683 states. [2018-09-19 13:02:13,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3683 to 3665. [2018-09-19 13:02:13,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3665 states. [2018-09-19 13:02:13,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3665 states to 3665 states and 4355 transitions. [2018-09-19 13:02:13,226 INFO L78 Accepts]: Start accepts. Automaton has 3665 states and 4355 transitions. Word has length 461 [2018-09-19 13:02:13,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:02:13,228 INFO L480 AbstractCegarLoop]: Abstraction has 3665 states and 4355 transitions. [2018-09-19 13:02:13,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:02:13,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 4355 transitions. [2018-09-19 13:02:13,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2018-09-19 13:02:13,236 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:02:13,236 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:02:13,236 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:02:13,237 INFO L82 PathProgramCache]: Analyzing trace with hash 719410752, now seen corresponding path program 1 times [2018-09-19 13:02:13,237 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:02:13,237 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 501 with the following transitions: [2018-09-19 13:02:13,238 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1036], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:02:13,242 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:02:13,243 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:02:13,424 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:02:13,797 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:02:13,797 INFO L272 AbstractInterpreter]: Visited 283 different actions 1119 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 13:02:13,809 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:02:14,203 INFO L232 lantSequenceWeakener]: Weakened 497 states. On average, predicates are now at 77.68% of their original sizes. [2018-09-19 13:02:14,203 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:02:14,308 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:02:14,308 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:02:14,308 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:02:14,308 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:02:14,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:02:14,309 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:02:14,309 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:02:14,310 INFO L87 Difference]: Start difference. First operand 3665 states and 4355 transitions. Second operand 10 states. [2018-09-19 13:02:19,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:02:19,276 INFO L93 Difference]: Finished difference Result 5718 states and 7223 transitions. [2018-09-19 13:02:19,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:02:19,283 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 500 [2018-09-19 13:02:19,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:02:19,301 INFO L225 Difference]: With dead ends: 5718 [2018-09-19 13:02:19,301 INFO L226 Difference]: Without dead ends: 4952 [2018-09-19 13:02:19,306 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 506 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:02:19,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4952 states. [2018-09-19 13:02:19,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4952 to 4945. [2018-09-19 13:02:19,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4945 states. [2018-09-19 13:02:19,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4945 states to 4945 states and 5728 transitions. [2018-09-19 13:02:19,401 INFO L78 Accepts]: Start accepts. Automaton has 4945 states and 5728 transitions. Word has length 500 [2018-09-19 13:02:19,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:02:19,402 INFO L480 AbstractCegarLoop]: Abstraction has 4945 states and 5728 transitions. [2018-09-19 13:02:19,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:02:19,402 INFO L276 IsEmpty]: Start isEmpty. Operand 4945 states and 5728 transitions. [2018-09-19 13:02:19,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2018-09-19 13:02:19,414 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:02:19,415 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:02:19,415 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:02:19,416 INFO L82 PathProgramCache]: Analyzing trace with hash 2053527032, now seen corresponding path program 1 times [2018-09-19 13:02:19,416 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:02:19,416 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 513 with the following transitions: [2018-09-19 13:02:19,418 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1036], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:02:19,422 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:02:19,423 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:02:19,639 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:02:20,348 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:02:20,349 INFO L272 AbstractInterpreter]: Visited 295 different actions 1458 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 13:02:20,353 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:02:20,828 INFO L232 lantSequenceWeakener]: Weakened 509 states. On average, predicates are now at 77.67% of their original sizes. [2018-09-19 13:02:20,828 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:02:20,939 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:02:20,939 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:02:20,939 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:02:20,939 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:02:20,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:02:20,940 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:02:20,940 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:02:20,940 INFO L87 Difference]: Start difference. First operand 4945 states and 5728 transitions. Second operand 10 states. [2018-09-19 13:02:30,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:02:30,238 INFO L93 Difference]: Finished difference Result 7064 states and 8742 transitions. [2018-09-19 13:02:30,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:02:30,239 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 512 [2018-09-19 13:02:30,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:02:30,271 INFO L225 Difference]: With dead ends: 7064 [2018-09-19 13:02:30,272 INFO L226 Difference]: Without dead ends: 6298 [2018-09-19 13:02:30,283 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 518 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:02:30,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6298 states. [2018-09-19 13:02:30,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6298 to 6285. [2018-09-19 13:02:30,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6285 states. [2018-09-19 13:02:30,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6285 states to 6285 states and 7258 transitions. [2018-09-19 13:02:30,420 INFO L78 Accepts]: Start accepts. Automaton has 6285 states and 7258 transitions. Word has length 512 [2018-09-19 13:02:30,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:02:30,421 INFO L480 AbstractCegarLoop]: Abstraction has 6285 states and 7258 transitions. [2018-09-19 13:02:30,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:02:30,421 INFO L276 IsEmpty]: Start isEmpty. Operand 6285 states and 7258 transitions. [2018-09-19 13:02:30,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2018-09-19 13:02:30,431 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:02:30,432 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:02:30,432 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:02:30,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1303924953, now seen corresponding path program 1 times [2018-09-19 13:02:30,432 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:02:30,433 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 532 with the following transitions: [2018-09-19 13:02:30,433 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:02:30,438 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:02:30,439 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:02:30,625 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:02:34,181 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:02:34,182 INFO L272 AbstractInterpreter]: Visited 296 different actions 2355 times. Merged at 8 different actions 64 times. Widened at 1 different actions 3 times. Found 15 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:02:34,190 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:02:35,027 INFO L232 lantSequenceWeakener]: Weakened 528 states. On average, predicates are now at 77.67% of their original sizes. [2018-09-19 13:02:35,027 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:02:35,135 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:02:35,136 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:02:35,136 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:02:35,136 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:02:35,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:02:35,136 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:02:35,137 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:02:35,137 INFO L87 Difference]: Start difference. First operand 6285 states and 7258 transitions. Second operand 10 states. [2018-09-19 13:02:45,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:02:45,842 INFO L93 Difference]: Finished difference Result 9105 states and 11045 transitions. [2018-09-19 13:02:45,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:02:45,842 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 531 [2018-09-19 13:02:45,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:02:45,862 INFO L225 Difference]: With dead ends: 9105 [2018-09-19 13:02:45,862 INFO L226 Difference]: Without dead ends: 8339 [2018-09-19 13:02:45,869 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 538 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:02:45,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8339 states. [2018-09-19 13:02:45,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8339 to 8291. [2018-09-19 13:02:45,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8291 states. [2018-09-19 13:02:46,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8291 states to 8291 states and 9652 transitions. [2018-09-19 13:02:46,010 INFO L78 Accepts]: Start accepts. Automaton has 8291 states and 9652 transitions. Word has length 531 [2018-09-19 13:02:46,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:02:46,011 INFO L480 AbstractCegarLoop]: Abstraction has 8291 states and 9652 transitions. [2018-09-19 13:02:46,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:02:46,011 INFO L276 IsEmpty]: Start isEmpty. Operand 8291 states and 9652 transitions. [2018-09-19 13:02:46,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2018-09-19 13:02:46,023 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:02:46,023 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:02:46,023 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:02:46,024 INFO L82 PathProgramCache]: Analyzing trace with hash -672005946, now seen corresponding path program 1 times [2018-09-19 13:02:46,024 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:02:46,024 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 533 with the following transitions: [2018-09-19 13:02:46,025 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [570], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:02:46,030 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:02:46,030 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:02:46,199 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:02:47,749 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:02:47,750 INFO L272 AbstractInterpreter]: Visited 296 different actions 1469 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:02:47,758 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:02:48,759 INFO L232 lantSequenceWeakener]: Weakened 529 states. On average, predicates are now at 77.67% of their original sizes. [2018-09-19 13:02:48,759 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:02:48,874 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:02:48,874 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:02:48,874 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:02:48,874 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:02:48,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:02:48,875 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:02:48,875 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:02:48,875 INFO L87 Difference]: Start difference. First operand 8291 states and 9652 transitions. Second operand 10 states. [2018-09-19 13:02:57,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:02:57,963 INFO L93 Difference]: Finished difference Result 14488 states and 17566 transitions. [2018-09-19 13:02:57,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 13:02:57,963 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 532 [2018-09-19 13:02:57,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:02:58,000 INFO L225 Difference]: With dead ends: 14488 [2018-09-19 13:02:58,000 INFO L226 Difference]: Without dead ends: 13357 [2018-09-19 13:02:58,010 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 539 GetRequests, 523 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:02:58,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13357 states. [2018-09-19 13:02:58,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13357 to 13283. [2018-09-19 13:02:58,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13283 states. [2018-09-19 13:02:58,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13283 states to 13283 states and 15588 transitions. [2018-09-19 13:02:58,222 INFO L78 Accepts]: Start accepts. Automaton has 13283 states and 15588 transitions. Word has length 532 [2018-09-19 13:02:58,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:02:58,223 INFO L480 AbstractCegarLoop]: Abstraction has 13283 states and 15588 transitions. [2018-09-19 13:02:58,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:02:58,223 INFO L276 IsEmpty]: Start isEmpty. Operand 13283 states and 15588 transitions. [2018-09-19 13:02:58,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2018-09-19 13:02:58,236 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:02:58,237 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:02:58,237 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:02:58,237 INFO L82 PathProgramCache]: Analyzing trace with hash -163278530, now seen corresponding path program 1 times [2018-09-19 13:02:58,237 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:02:58,238 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 537 with the following transitions: [2018-09-19 13:02:58,238 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [593], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:02:58,243 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:02:58,243 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:02:58,410 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:03:01,337 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:03:01,337 INFO L272 AbstractInterpreter]: Visited 296 different actions 2058 times. Merged at 8 different actions 52 times. Widened at 1 different actions 2 times. Found 12 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:03:01,348 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:03:02,295 INFO L232 lantSequenceWeakener]: Weakened 533 states. On average, predicates are now at 77.67% of their original sizes. [2018-09-19 13:03:02,295 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:03:02,776 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:03:02,777 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:03:02,777 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:03:02,777 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:03:02,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:03:02,778 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:03:02,779 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:03:02,779 INFO L87 Difference]: Start difference. First operand 13283 states and 15588 transitions. Second operand 10 states. [2018-09-19 13:03:15,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:03:15,015 INFO L93 Difference]: Finished difference Result 17037 states and 21293 transitions. [2018-09-19 13:03:15,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:03:15,015 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 536 [2018-09-19 13:03:15,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:03:15,045 INFO L225 Difference]: With dead ends: 17037 [2018-09-19 13:03:15,045 INFO L226 Difference]: Without dead ends: 14836 [2018-09-19 13:03:15,055 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 543 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:03:15,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14836 states. [2018-09-19 13:03:15,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14836 to 14721. [2018-09-19 13:03:15,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14721 states. [2018-09-19 13:03:15,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14721 states to 14721 states and 17676 transitions. [2018-09-19 13:03:15,275 INFO L78 Accepts]: Start accepts. Automaton has 14721 states and 17676 transitions. Word has length 536 [2018-09-19 13:03:15,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:03:15,276 INFO L480 AbstractCegarLoop]: Abstraction has 14721 states and 17676 transitions. [2018-09-19 13:03:15,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:03:15,277 INFO L276 IsEmpty]: Start isEmpty. Operand 14721 states and 17676 transitions. [2018-09-19 13:03:15,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2018-09-19 13:03:15,290 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:03:15,291 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:03:15,291 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:03:15,291 INFO L82 PathProgramCache]: Analyzing trace with hash -893394224, now seen corresponding path program 1 times [2018-09-19 13:03:15,291 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:03:15,292 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 540 with the following transitions: [2018-09-19 13:03:15,292 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [605], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:03:15,297 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:03:15,297 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:03:15,473 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:03:18,060 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:03:18,060 INFO L272 AbstractInterpreter]: Visited 296 different actions 1766 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 11 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:03:18,065 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:03:19,148 INFO L232 lantSequenceWeakener]: Weakened 536 states. On average, predicates are now at 77.67% of their original sizes. [2018-09-19 13:03:19,148 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:03:19,251 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:03:19,252 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:03:19,252 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:03:19,252 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:03:19,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:03:19,253 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:03:19,253 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:03:19,253 INFO L87 Difference]: Start difference. First operand 14721 states and 17676 transitions. Second operand 10 states. [2018-09-19 13:03:26,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:03:26,143 INFO L93 Difference]: Finished difference Result 19962 states and 25822 transitions. [2018-09-19 13:03:26,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:03:26,146 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 539 [2018-09-19 13:03:26,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:03:26,179 INFO L225 Difference]: With dead ends: 19962 [2018-09-19 13:03:26,180 INFO L226 Difference]: Without dead ends: 16662 [2018-09-19 13:03:26,191 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 546 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:03:26,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16662 states. [2018-09-19 13:03:26,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16662 to 16556. [2018-09-19 13:03:26,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16556 states. [2018-09-19 13:03:26,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16556 states to 16556 states and 20518 transitions. [2018-09-19 13:03:26,432 INFO L78 Accepts]: Start accepts. Automaton has 16556 states and 20518 transitions. Word has length 539 [2018-09-19 13:03:26,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:03:26,433 INFO L480 AbstractCegarLoop]: Abstraction has 16556 states and 20518 transitions. [2018-09-19 13:03:26,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:03:26,433 INFO L276 IsEmpty]: Start isEmpty. Operand 16556 states and 20518 transitions. [2018-09-19 13:03:26,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-09-19 13:03:26,448 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:03:26,448 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:03:26,449 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:03:26,449 INFO L82 PathProgramCache]: Analyzing trace with hash 442544524, now seen corresponding path program 1 times [2018-09-19 13:03:26,449 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:03:26,449 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 542 with the following transitions: [2018-09-19 13:03:26,450 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:03:26,455 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:03:26,455 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:03:26,637 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:03:28,650 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:03:28,651 INFO L272 AbstractInterpreter]: Visited 296 different actions 1764 times. Merged at 8 different actions 43 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:03:28,656 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:03:29,321 INFO L232 lantSequenceWeakener]: Weakened 538 states. On average, predicates are now at 77.67% of their original sizes. [2018-09-19 13:03:29,321 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:03:29,420 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:03:29,420 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:03:29,421 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:03:29,421 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:03:29,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:03:29,422 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:03:29,422 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:03:29,422 INFO L87 Difference]: Start difference. First operand 16556 states and 20518 transitions. Second operand 10 states. [2018-09-19 13:03:38,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:03:38,304 INFO L93 Difference]: Finished difference Result 22485 states and 29787 transitions. [2018-09-19 13:03:38,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:03:38,306 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 541 [2018-09-19 13:03:38,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:03:38,343 INFO L225 Difference]: With dead ends: 22485 [2018-09-19 13:03:38,344 INFO L226 Difference]: Without dead ends: 17350 [2018-09-19 13:03:38,358 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 548 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:03:38,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17350 states. [2018-09-19 13:03:38,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17350 to 17249. [2018-09-19 13:03:38,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17249 states. [2018-09-19 13:03:38,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17249 states to 17249 states and 21581 transitions. [2018-09-19 13:03:38,601 INFO L78 Accepts]: Start accepts. Automaton has 17249 states and 21581 transitions. Word has length 541 [2018-09-19 13:03:38,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:03:38,601 INFO L480 AbstractCegarLoop]: Abstraction has 17249 states and 21581 transitions. [2018-09-19 13:03:38,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:03:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 17249 states and 21581 transitions. [2018-09-19 13:03:38,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2018-09-19 13:03:38,614 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:03:38,615 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:03:38,615 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:03:38,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1682223662, now seen corresponding path program 1 times [2018-09-19 13:03:38,615 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:03:38,616 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 545 with the following transitions: [2018-09-19 13:03:38,616 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [625], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:03:38,621 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:03:38,622 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:03:38,767 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:03:41,942 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:03:41,942 INFO L272 AbstractInterpreter]: Visited 296 different actions 1469 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:03:41,948 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:03:43,398 INFO L232 lantSequenceWeakener]: Weakened 541 states. On average, predicates are now at 77.66% of their original sizes. [2018-09-19 13:03:43,398 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:03:43,737 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:03:43,737 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:03:43,737 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:03:43,737 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:03:43,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:03:43,738 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:03:43,738 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:03:43,738 INFO L87 Difference]: Start difference. First operand 17249 states and 21581 transitions. Second operand 10 states. [2018-09-19 13:03:53,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:03:53,060 INFO L93 Difference]: Finished difference Result 24691 states and 33201 transitions. [2018-09-19 13:03:53,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:03:53,060 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 544 [2018-09-19 13:03:53,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:03:53,098 INFO L225 Difference]: With dead ends: 24691 [2018-09-19 13:03:53,098 INFO L226 Difference]: Without dead ends: 18863 [2018-09-19 13:03:53,115 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 551 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:03:53,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18863 states. [2018-09-19 13:03:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18863 to 18723. [2018-09-19 13:03:53,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18723 states. [2018-09-19 13:03:53,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18723 states to 18723 states and 23934 transitions. [2018-09-19 13:03:53,380 INFO L78 Accepts]: Start accepts. Automaton has 18723 states and 23934 transitions. Word has length 544 [2018-09-19 13:03:53,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:03:53,381 INFO L480 AbstractCegarLoop]: Abstraction has 18723 states and 23934 transitions. [2018-09-19 13:03:53,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:03:53,381 INFO L276 IsEmpty]: Start isEmpty. Operand 18723 states and 23934 transitions. [2018-09-19 13:03:53,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2018-09-19 13:03:53,390 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:03:53,391 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:03:53,391 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:03:53,391 INFO L82 PathProgramCache]: Analyzing trace with hash 919266820, now seen corresponding path program 1 times [2018-09-19 13:03:53,392 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:03:53,392 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 546 with the following transitions: [2018-09-19 13:03:53,392 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:03:53,396 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:03:53,397 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:03:53,561 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:03:55,312 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:03:55,312 INFO L272 AbstractInterpreter]: Visited 296 different actions 1469 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:03:55,318 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:03:55,991 INFO L232 lantSequenceWeakener]: Weakened 542 states. On average, predicates are now at 77.66% of their original sizes. [2018-09-19 13:03:55,992 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:03:56,101 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:03:56,101 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:03:56,101 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:03:56,101 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:03:56,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:03:56,102 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:03:56,102 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:03:56,102 INFO L87 Difference]: Start difference. First operand 18723 states and 23934 transitions. Second operand 10 states. [2018-09-19 13:04:03,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:04:03,895 INFO L93 Difference]: Finished difference Result 28018 states and 38584 transitions. [2018-09-19 13:04:03,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:04:03,897 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 545 [2018-09-19 13:04:03,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:04:03,944 INFO L225 Difference]: With dead ends: 28018 [2018-09-19 13:04:03,945 INFO L226 Difference]: Without dead ends: 20716 [2018-09-19 13:04:03,962 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 552 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:04:03,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20716 states. [2018-09-19 13:04:04,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20716 to 20545. [2018-09-19 13:04:04,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20545 states. [2018-09-19 13:04:04,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20545 states to 20545 states and 26955 transitions. [2018-09-19 13:04:04,257 INFO L78 Accepts]: Start accepts. Automaton has 20545 states and 26955 transitions. Word has length 545 [2018-09-19 13:04:04,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:04:04,258 INFO L480 AbstractCegarLoop]: Abstraction has 20545 states and 26955 transitions. [2018-09-19 13:04:04,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:04:04,258 INFO L276 IsEmpty]: Start isEmpty. Operand 20545 states and 26955 transitions. [2018-09-19 13:04:04,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2018-09-19 13:04:04,268 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:04:04,269 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 13:04:04,269 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:04:04,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1603701478, now seen corresponding path program 1 times [2018-09-19 13:04:04,269 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:04:04,269 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 561 with the following transitions: [2018-09-19 13:04:04,270 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1311], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:04:04,273 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:04:04,274 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:04:04,655 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:04:04,957 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:04:04,957 INFO L272 AbstractInterpreter]: Visited 283 different actions 1119 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 13:04:04,965 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:04:05,383 INFO L232 lantSequenceWeakener]: Weakened 557 states. On average, predicates are now at 77.64% of their original sizes. [2018-09-19 13:04:05,383 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:04:05,484 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:04:05,484 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:04:05,485 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:04:05,485 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:04:05,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:04:05,485 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:04:05,486 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:04:05,486 INFO L87 Difference]: Start difference. First operand 20545 states and 26955 transitions. Second operand 10 states. [2018-09-19 13:04:14,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:04:14,362 INFO L93 Difference]: Finished difference Result 30967 states and 42989 transitions. [2018-09-19 13:04:14,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:04:14,372 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 560 [2018-09-19 13:04:14,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:04:14,412 INFO L225 Difference]: With dead ends: 30967 [2018-09-19 13:04:14,412 INFO L226 Difference]: Without dead ends: 21843 [2018-09-19 13:04:14,431 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 566 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:04:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21843 states. [2018-09-19 13:04:14,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21843 to 21831. [2018-09-19 13:04:14,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21831 states. [2018-09-19 13:04:14,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21831 states to 21831 states and 28351 transitions. [2018-09-19 13:04:14,700 INFO L78 Accepts]: Start accepts. Automaton has 21831 states and 28351 transitions. Word has length 560 [2018-09-19 13:04:14,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:04:14,700 INFO L480 AbstractCegarLoop]: Abstraction has 21831 states and 28351 transitions. [2018-09-19 13:04:14,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:04:14,701 INFO L276 IsEmpty]: Start isEmpty. Operand 21831 states and 28351 transitions. [2018-09-19 13:04:14,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2018-09-19 13:04:14,715 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:04:14,715 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:04:14,715 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:04:14,716 INFO L82 PathProgramCache]: Analyzing trace with hash -890633102, now seen corresponding path program 1 times [2018-09-19 13:04:14,716 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:04:14,716 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 564 with the following transitions: [2018-09-19 13:04:14,716 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [722], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:04:14,720 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:04:14,721 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:04:14,896 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:04:17,863 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:04:17,863 INFO L272 AbstractInterpreter]: Visited 296 different actions 2059 times. Merged at 8 different actions 53 times. Widened at 1 different actions 2 times. Found 12 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:04:17,872 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:04:18,624 INFO L232 lantSequenceWeakener]: Weakened 560 states. On average, predicates are now at 77.65% of their original sizes. [2018-09-19 13:04:18,624 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:04:18,726 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:04:18,726 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:04:18,726 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:04:18,726 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:04:18,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:04:18,727 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:04:18,727 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:04:18,727 INFO L87 Difference]: Start difference. First operand 21831 states and 28351 transitions. Second operand 10 states. [2018-09-19 13:04:31,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:04:31,449 INFO L93 Difference]: Finished difference Result 37926 states and 52963 transitions. [2018-09-19 13:04:31,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:04:31,450 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 563 [2018-09-19 13:04:31,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:04:31,505 INFO L225 Difference]: With dead ends: 37926 [2018-09-19 13:04:31,505 INFO L226 Difference]: Without dead ends: 25444 [2018-09-19 13:04:31,523 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 570 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:04:31,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25444 states. [2018-09-19 13:04:31,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25444 to 25262. [2018-09-19 13:04:31,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25262 states. [2018-09-19 13:04:31,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25262 states to 25262 states and 33397 transitions. [2018-09-19 13:04:31,810 INFO L78 Accepts]: Start accepts. Automaton has 25262 states and 33397 transitions. Word has length 563 [2018-09-19 13:04:31,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:04:31,811 INFO L480 AbstractCegarLoop]: Abstraction has 25262 states and 33397 transitions. [2018-09-19 13:04:31,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:04:31,811 INFO L276 IsEmpty]: Start isEmpty. Operand 25262 states and 33397 transitions. [2018-09-19 13:04:31,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2018-09-19 13:04:31,823 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:04:31,823 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 13:04:31,823 INFO L423 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:04:31,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1633243346, now seen corresponding path program 1 times [2018-09-19 13:04:31,824 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:04:31,824 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 573 with the following transitions: [2018-09-19 13:04:31,824 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1311], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:04:31,828 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:04:31,828 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:04:31,963 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:04:32,476 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:04:32,476 INFO L272 AbstractInterpreter]: Visited 295 different actions 1458 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 13:04:32,484 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:04:32,982 INFO L232 lantSequenceWeakener]: Weakened 569 states. On average, predicates are now at 77.63% of their original sizes. [2018-09-19 13:04:32,982 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:04:33,082 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:04:33,082 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:04:33,082 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:04:33,083 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:04:33,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:04:33,083 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:04:33,083 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:04:33,084 INFO L87 Difference]: Start difference. First operand 25262 states and 33397 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 13:04:36,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 13:04:36,139 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 13:04:36,145 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 13:04:36,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:04:36 BoogieIcfgContainer [2018-09-19 13:04:36,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 13:04:36,147 INFO L168 Benchmark]: Toolchain (without parser) took 239911.79 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -430.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-19 13:04:36,148 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 13:04:36,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1311.55 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-19 13:04:36,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 241.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 13:04:36,150 INFO L168 Benchmark]: Boogie Preprocessor took 714.15 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 863.0 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-19 13:04:36,151 INFO L168 Benchmark]: RCFGBuilder took 9335.71 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 301.2 MB). Peak memory consumption was 301.2 MB. Max. memory is 7.1 GB. [2018-09-19 13:04:36,151 INFO L168 Benchmark]: TraceAbstraction took 228302.13 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.5 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 120.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-09-19 13:04:36,156 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1311.55 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 241.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 714.15 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 863.0 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9335.71 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 301.2 MB). Peak memory consumption was 301.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228302.13 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.5 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 120.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 172]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 172). Cancelled while BasicCegarLoop was constructing difference of abstraction (25262states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (2078 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 228.2s OverallTime, 21 OverallIterations, 4 TraceHistogramMax, 174.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7822 SDtfs, 26338 SDslu, 10314 SDs, 0 SdLazy, 80623 SolverSat, 5730 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 152.3s Time, PredicateUnifierStatistics: 42 DeclaredPredicates, 9693 GetRequests, 9381 SyntacticMatches, 0 SemanticMatches, 312 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25262occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 33.5s AbstIntTime, 21 AbstIntIterations, 21 AbstIntStrong, 0.9982929059916739 AbsIntWeakeningRatio, 0.059088528025144055 AbsIntAvgWeakeningVarsNumRemoved, 23.49156626506024 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.9s AutomataMinimizationTime, 20 MinimizatonAttempts, 1031 StatesRemovedByMinimization, 20 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/Problem15_label11_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_13-04-36-168.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label11_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_13-04-36-168.csv Completed graceful shutdown