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_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 23:02:32,159 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 23:02:32,161 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 23:02:32,178 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 23:02:32,179 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 23:02:32,180 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 23:02:32,184 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 23:02:32,187 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 23:02:32,189 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 23:02:32,192 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 23:02:32,193 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 23:02:32,193 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 23:02:32,194 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 23:02:32,198 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 23:02:32,199 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 23:02:32,200 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 23:02:32,208 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 23:02:32,213 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 23:02:32,218 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 23:02:32,220 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 23:02:32,224 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 23:02:32,225 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 23:02:32,231 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 23:02:32,231 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 23:02:32,231 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 23:02:32,233 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 23:02:32,234 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 23:02:32,235 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 23:02:32,236 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 23:02:32,241 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 23:02:32,241 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 23:02:32,242 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 23:02:32,244 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 23:02:32,244 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 23:02:32,246 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 23:02:32,247 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 23:02:32,247 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 [2018-09-15 23:02:32,280 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 23:02:32,280 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 23:02:32,281 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 23:02:32,282 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 23:02:32,282 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 23:02:32,282 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 23:02:32,282 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 23:02:32,282 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 23:02:32,283 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 23:02:32,283 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 23:02:32,283 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 23:02:32,287 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 23:02:32,288 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 23:02:32,288 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 23:02:32,288 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 23:02:32,288 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 23:02:32,289 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 23:02:32,289 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 23:02:32,289 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 23:02:32,289 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 23:02:32,291 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 23:02:32,291 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 23:02:32,291 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 23:02:32,291 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 23:02:32,292 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 23:02:32,292 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 23:02:32,292 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 23:02:32,292 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 23:02:32,293 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 23:02:32,293 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 23:02:32,293 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 23:02:32,293 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 23:02:32,293 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 23:02:32,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 23:02:32,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 23:02:32,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 23:02:32,371 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 23:02:32,372 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 23:02:32,373 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c [2018-09-15 23:02:32,774 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a2d7678b/6aac80cc95c34d1381dfa596a537918b/FLAGaec932d97 [2018-09-15 23:02:33,217 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 23:02:33,218 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c [2018-09-15 23:02:33,243 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a2d7678b/6aac80cc95c34d1381dfa596a537918b/FLAGaec932d97 [2018-09-15 23:02:33,260 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a2d7678b/6aac80cc95c34d1381dfa596a537918b [2018-09-15 23:02:33,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 23:02:33,277 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 23:02:33,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 23:02:33,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 23:02:33,286 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 23:02:33,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:02:33" (1/1) ... [2018-09-15 23:02:33,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f57d78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:33, skipping insertion in model container [2018-09-15 23:02:33,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:02:33" (1/1) ... [2018-09-15 23:02:33,303 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 23:02:34,220 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 23:02:34,241 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 23:02:34,544 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 23:02:34,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:34 WrapperNode [2018-09-15 23:02:34,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 23:02:34,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 23:02:34,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 23:02:34,680 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 23:02:34,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:34" (1/1) ... [2018-09-15 23:02:34,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:34" (1/1) ... [2018-09-15 23:02:35,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 23:02:35,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 23:02:35,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 23:02:35,002 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 23:02:35,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:34" (1/1) ... [2018-09-15 23:02:35,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:34" (1/1) ... [2018-09-15 23:02:35,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:34" (1/1) ... [2018-09-15 23:02:35,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:34" (1/1) ... [2018-09-15 23:02:35,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:34" (1/1) ... [2018-09-15 23:02:35,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:34" (1/1) ... [2018-09-15 23:02:35,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:34" (1/1) ... [2018-09-15 23:02:35,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 23:02:35,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 23:02:35,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 23:02:35,666 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 23:02:35,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 23:02:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 23:02:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 23:02:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 23:02:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 23:02:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 23:02:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 23:02:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 23:02:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 23:02:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 23:02:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 23:02:42,868 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 23:02:42,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:02:42 BoogieIcfgContainer [2018-09-15 23:02:42,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 23:02:42,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 23:02:42,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 23:02:42,876 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 23:02:42,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:02:33" (1/3) ... [2018-09-15 23:02:42,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c96b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:02:42, skipping insertion in model container [2018-09-15 23:02:42,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:02:34" (2/3) ... [2018-09-15 23:02:42,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c96b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:02:42, skipping insertion in model container [2018-09-15 23:02:42,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:02:42" (3/3) ... [2018-09-15 23:02:42,880 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label35_true-unreach-call.c [2018-09-15 23:02:42,890 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 23:02:42,900 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 23:02:42,970 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 23:02:42,971 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 23:02:42,971 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 23:02:42,971 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 23:02:42,971 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 23:02:42,972 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 23:02:42,972 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 23:02:42,972 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 23:02:42,972 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 23:02:43,003 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-15 23:02:43,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-15 23:02:43,013 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:02:43,014 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] [2018-09-15 23:02:43,015 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:02:43,021 INFO L82 PathProgramCache]: Analyzing trace with hash -524388215, now seen corresponding path program 1 times [2018-09-15 23:02:43,024 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:02:43,025 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 44 with the following transitions: [2018-09-15 23:02:43,027 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], [317], [319], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-15 23:02:43,071 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:02:43,071 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:02:43,519 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:02:43,521 INFO L272 AbstractInterpreter]: Visited 42 different actions 42 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 23:02:43,568 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:02:43,842 INFO L232 lantSequenceWeakener]: Weakened 40 states. On average, predicates are now at 79.73% of their original sizes. [2018-09-15 23:02:43,842 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:02:44,097 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:02:44,098 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:02:44,099 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 23:02:44,099 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:02:44,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 23:02:44,112 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 23:02:44,113 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 23:02:44,116 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-15 23:02:51,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:02:51,406 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-15 23:02:51,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 23:02:51,408 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-09-15 23:02:51,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:02:51,431 INFO L225 Difference]: With dead ends: 1184 [2018-09-15 23:02:51,432 INFO L226 Difference]: Without dead ends: 744 [2018-09-15 23:02:51,442 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 23:02:51,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-15 23:02:51,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-15 23:02:51,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-15 23:02:51,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-15 23:02:51,554 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 43 [2018-09-15 23:02:51,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:02:51,555 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-15 23:02:51,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 23:02:51,555 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-15 23:02:51,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-09-15 23:02:51,562 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:02:51,563 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 23:02:51,563 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:02:51,564 INFO L82 PathProgramCache]: Analyzing trace with hash 360966111, now seen corresponding path program 1 times [2018-09-15 23:02:51,564 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:02:51,564 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 140 with the following transitions: [2018-09-15 23:02:51,565 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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [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] [2018-09-15 23:02:51,572 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:02:51,572 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:02:55,164 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:02:57,752 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:02:57,752 INFO L272 AbstractInterpreter]: Visited 103 different actions 199 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 23:02:57,796 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:03:00,523 INFO L232 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 78.09% of their original sizes. [2018-09-15 23:03:00,523 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:03:00,991 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:03:00,992 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:03:00,992 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 23:03:00,992 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:03:00,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 23:03:00,993 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 23:03:00,994 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 23:03:00,994 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 11 states. [2018-09-15 23:03:10,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:03:10,333 INFO L93 Difference]: Finished difference Result 1792 states and 3044 transitions. [2018-09-15 23:03:10,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 23:03:10,334 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 139 [2018-09-15 23:03:10,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:03:10,343 INFO L225 Difference]: With dead ends: 1792 [2018-09-15 23:03:10,343 INFO L226 Difference]: Without dead ends: 1364 [2018-09-15 23:03:10,347 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 145 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 23:03:10,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-15 23:03:10,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1361. [2018-09-15 23:03:10,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1361 states. [2018-09-15 23:03:10,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1709 transitions. [2018-09-15 23:03:10,413 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1709 transitions. Word has length 139 [2018-09-15 23:03:10,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:03:10,414 INFO L480 AbstractCegarLoop]: Abstraction has 1361 states and 1709 transitions. [2018-09-15 23:03:10,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 23:03:10,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1709 transitions. [2018-09-15 23:03:10,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-09-15 23:03:10,428 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:03:10,429 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 23:03:10,429 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:03:10,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1680489284, now seen corresponding path program 1 times [2018-09-15 23:03:10,430 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:03:10,430 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-09-15 23:03:10,431 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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [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], [1115], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 23:03:10,442 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:03:10,442 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:03:31,776 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:03:51,847 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:03:51,847 INFO L272 AbstractInterpreter]: Visited 188 different actions 369 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 23:03:51,878 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:04:13,419 INFO L232 lantSequenceWeakener]: Weakened 221 states. On average, predicates are now at 77.77% of their original sizes. [2018-09-15 23:04:13,420 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:04:13,599 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:04:13,600 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:04:13,600 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 23:04:13,600 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:04:13,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 23:04:13,601 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 23:04:13,601 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 23:04:13,602 INFO L87 Difference]: Start difference. First operand 1361 states and 1709 transitions. Second operand 12 states. [2018-09-15 23:04:24,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:04:24,906 INFO L93 Difference]: Finished difference Result 2411 states and 3681 transitions. [2018-09-15 23:04:24,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 23:04:24,917 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 224 [2018-09-15 23:04:24,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:04:24,928 INFO L225 Difference]: With dead ends: 2411 [2018-09-15 23:04:24,929 INFO L226 Difference]: Without dead ends: 1983 [2018-09-15 23:04:24,932 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 231 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 23:04:24,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2018-09-15 23:04:24,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1980. [2018-09-15 23:04:24,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1980 states. [2018-09-15 23:04:24,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2346 transitions. [2018-09-15 23:04:24,987 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2346 transitions. Word has length 224 [2018-09-15 23:04:24,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:04:24,988 INFO L480 AbstractCegarLoop]: Abstraction has 1980 states and 2346 transitions. [2018-09-15 23:04:24,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 23:04:24,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2346 transitions. [2018-09-15 23:04:24,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2018-09-15 23:04:24,993 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:04:24,993 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 23:04:24,994 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:04:24,994 INFO L82 PathProgramCache]: Analyzing trace with hash -2101964052, now seen corresponding path program 1 times [2018-09-15 23:04:24,994 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:04:24,995 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 282 with the following transitions: [2018-09-15 23:04:24,995 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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [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], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 23:04:25,003 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:04:25,003 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:04:50,355 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:05:15,297 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:05:15,297 INFO L272 AbstractInterpreter]: Visited 245 different actions 483 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 23:05:15,312 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:05:41,127 INFO L232 lantSequenceWeakener]: Weakened 278 states. On average, predicates are now at 77.67% of their original sizes. [2018-09-15 23:05:41,128 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:05:41,313 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:05:41,313 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:05:41,313 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 23:05:41,314 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:05:41,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 23:05:41,315 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 23:05:41,315 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 23:05:41,315 INFO L87 Difference]: Start difference. First operand 1980 states and 2346 transitions. Second operand 12 states. [2018-09-15 23:05:48,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:05:48,043 INFO L93 Difference]: Finished difference Result 3030 states and 4318 transitions. [2018-09-15 23:05:48,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 23:05:48,051 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 281 [2018-09-15 23:05:48,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:05:48,066 INFO L225 Difference]: With dead ends: 3030 [2018-09-15 23:05:48,066 INFO L226 Difference]: Without dead ends: 2602 [2018-09-15 23:05:48,071 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 288 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 23:05:48,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2018-09-15 23:05:48,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2599. [2018-09-15 23:05:48,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2599 states. [2018-09-15 23:05:48,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 2983 transitions. [2018-09-15 23:05:48,159 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 2983 transitions. Word has length 281 [2018-09-15 23:05:48,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:05:48,160 INFO L480 AbstractCegarLoop]: Abstraction has 2599 states and 2983 transitions. [2018-09-15 23:05:48,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 23:05:48,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 2983 transitions. [2018-09-15 23:05:48,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-09-15 23:05:48,166 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:05:48,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 23:05:48,167 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:05:48,168 INFO L82 PathProgramCache]: Analyzing trace with hash -782680883, now seen corresponding path program 1 times [2018-09-15 23:05:48,168 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:05:48,168 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 283 with the following transitions: [2018-09-15 23:05:48,169 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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [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], [1382], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 23:05:48,179 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:05:48,179 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:06:13,891 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:06:39,303 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:06:39,304 INFO L272 AbstractInterpreter]: Visited 246 different actions 485 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 23:06:39,342 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown