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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label20_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 03:27:09,283 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 03:27:09,287 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 03:27:09,305 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 03:27:09,306 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 03:27:09,307 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 03:27:09,308 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 03:27:09,310 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 03:27:09,311 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 03:27:09,312 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 03:27:09,313 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 03:27:09,314 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 03:27:09,315 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 03:27:09,316 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 03:27:09,317 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 03:27:09,317 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 03:27:09,318 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 03:27:09,320 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 03:27:09,322 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 03:27:09,324 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 03:27:09,325 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 03:27:09,327 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 03:27:09,329 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 03:27:09,330 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 03:27:09,330 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 03:27:09,331 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 03:27:09,332 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 03:27:09,333 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 03:27:09,334 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 03:27:09,335 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 03:27:09,335 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 03:27:09,336 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 03:27:09,336 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 03:27:09,336 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 03:27:09,338 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 03:27:09,338 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 03:27:09,339 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 03:27:09,356 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 03:27:09,356 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 03:27:09,357 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 03:27:09,357 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 03:27:09,358 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 03:27:09,358 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 03:27:09,358 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 03:27:09,358 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 03:27:09,358 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 03:27:09,359 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 03:27:09,359 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 03:27:09,359 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 03:27:09,360 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 03:27:09,360 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 03:27:09,360 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 03:27:09,360 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 03:27:09,361 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 03:27:09,361 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 03:27:09,361 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 03:27:09,361 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 03:27:09,361 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 03:27:09,362 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 03:27:09,362 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 03:27:09,362 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 03:27:09,362 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:27:09,363 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 03:27:09,364 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 03:27:09,364 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 03:27:09,364 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 03:27:09,364 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 03:27:09,364 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 03:27:09,365 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 03:27:09,365 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 03:27:09,365 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 03:27:09,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 03:27:09,424 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 03:27:09,428 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 03:27:09,430 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 03:27:09,430 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 03:27:09,431 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label20_true-unreach-call.c [2018-09-19 03:27:09,784 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc77c30b0/056cc61092e447cfb97ac5cfd5d5c5b4/FLAGa2854c03e [2018-09-19 03:27:10,123 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 03:27:10,125 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label20_true-unreach-call.c [2018-09-19 03:27:10,149 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc77c30b0/056cc61092e447cfb97ac5cfd5d5c5b4/FLAGa2854c03e [2018-09-19 03:27:10,176 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc77c30b0/056cc61092e447cfb97ac5cfd5d5c5b4 [2018-09-19 03:27:10,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 03:27:10,196 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 03:27:10,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 03:27:10,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 03:27:10,210 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 03:27:10,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:27:10" (1/1) ... [2018-09-19 03:27:10,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a77e263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:10, skipping insertion in model container [2018-09-19 03:27:10,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:27:10" (1/1) ... [2018-09-19 03:27:10,232 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 03:27:10,785 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:27:10,804 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 03:27:10,958 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:27:11,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:11 WrapperNode [2018-09-19 03:27:11,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 03:27:11,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 03:27:11,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 03:27:11,008 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 03:27:11,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:11" (1/1) ... [2018-09-19 03:27:11,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:11" (1/1) ... [2018-09-19 03:27:11,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 03:27:11,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 03:27:11,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 03:27:11,109 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 03:27:11,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:11" (1/1) ... [2018-09-19 03:27:11,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:11" (1/1) ... [2018-09-19 03:27:11,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:11" (1/1) ... [2018-09-19 03:27:11,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:11" (1/1) ... [2018-09-19 03:27:11,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:11" (1/1) ... [2018-09-19 03:27:11,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:11" (1/1) ... [2018-09-19 03:27:11,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:11" (1/1) ... [2018-09-19 03:27:11,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 03:27:11,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 03:27:11,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 03:27:11,427 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 03:27:11,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:11" (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 03:27:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 03:27:11,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 03:27:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 03:27:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 03:27:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 03:27:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 03:27:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 03:27:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 03:27:14,640 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 03:27:14,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:27:14 BoogieIcfgContainer [2018-09-19 03:27:14,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 03:27:14,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 03:27:14,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 03:27:14,646 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 03:27:14,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:27:10" (1/3) ... [2018-09-19 03:27:14,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5afe8c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:27:14, skipping insertion in model container [2018-09-19 03:27:14,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:11" (2/3) ... [2018-09-19 03:27:14,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5afe8c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:27:14, skipping insertion in model container [2018-09-19 03:27:14,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:27:14" (3/3) ... [2018-09-19 03:27:14,650 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label20_true-unreach-call.c [2018-09-19 03:27:14,660 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 03:27:14,670 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 03:27:14,728 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 03:27:14,729 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 03:27:14,729 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 03:27:14,730 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 03:27:14,730 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 03:27:14,730 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 03:27:14,730 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 03:27:14,731 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 03:27:14,731 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 03:27:14,759 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 03:27:14,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-19 03:27:14,768 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:14,769 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] [2018-09-19 03:27:14,770 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:14,776 INFO L82 PathProgramCache]: Analyzing trace with hash -2089647903, now seen corresponding path program 1 times [2018-09-19 03:27:14,779 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:14,780 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 36 with the following transitions: [2018-09-19 03:27:14,783 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 03:27:14,848 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:14,848 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:15,891 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:15,893 INFO L272 AbstractInterpreter]: Visited 34 different actions 34 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 03:27:15,911 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:16,502 INFO L232 lantSequenceWeakener]: Weakened 33 states. On average, predicates are now at 74.9% of their original sizes. [2018-09-19 03:27:16,503 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:16,846 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:16,848 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:16,849 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 03:27:16,849 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:16,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 03:27:16,863 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 03:27:16,864 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:27:16,867 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 03:27:20,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:20,355 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 03:27:20,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 03:27:20,358 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-09-19 03:27:20,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:20,375 INFO L225 Difference]: With dead ends: 576 [2018-09-19 03:27:20,375 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 03:27:20,390 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:27:20,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 03:27:20,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 03:27:20,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 03:27:20,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 03:27:20,470 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 35 [2018-09-19 03:27:20,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:20,471 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 03:27:20,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 03:27:20,471 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 03:27:20,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-09-19 03:27:20,476 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:20,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:27:20,477 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:20,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1738863731, now seen corresponding path program 1 times [2018-09-19 03:27:20,478 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:20,478 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2018-09-19 03:27:20,479 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:27:20,487 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:20,490 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:22,085 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:27:25,086 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:25,086 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:27:25,100 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:25,896 INFO L232 lantSequenceWeakener]: Weakened 104 states. On average, predicates are now at 73.5% of their original sizes. [2018-09-19 03:27:25,896 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:26,502 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:26,503 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:26,503 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:27:26,503 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:26,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:27:26,504 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:27:26,505 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:27:26,505 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 03:27:34,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:34,968 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 03:27:34,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 03:27:34,971 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2018-09-19 03:27:34,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:34,977 INFO L225 Difference]: With dead ends: 717 [2018-09-19 03:27:34,977 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 03:27:34,980 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 112 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 03:27:34,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 03:27:35,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 03:27:35,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 03:27:35,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 659 transitions. [2018-09-19 03:27:35,019 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 659 transitions. Word has length 106 [2018-09-19 03:27:35,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:35,020 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 659 transitions. [2018-09-19 03:27:35,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:27:35,020 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 659 transitions. [2018-09-19 03:27:35,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-09-19 03:27:35,025 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:35,026 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:27:35,026 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:35,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1902115116, now seen corresponding path program 1 times [2018-09-19 03:27:35,027 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:35,027 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-09-19 03:27:35,027 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:27:35,032 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:35,033 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:38,934 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:27:40,967 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:40,967 INFO L272 AbstractInterpreter]: Visited 87 different actions 248 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:27:40,973 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:41,903 INFO L232 lantSequenceWeakener]: Weakened 113 states. On average, predicates are now at 73.44% of their original sizes. [2018-09-19 03:27:41,904 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:42,825 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:42,825 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:42,825 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:27:42,826 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:42,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:27:42,826 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:27:42,827 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:27:42,827 INFO L87 Difference]: Start difference. First operand 505 states and 659 transitions. Second operand 13 states. [2018-09-19 03:27:53,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:53,533 INFO L93 Difference]: Finished difference Result 1333 states and 2076 transitions. [2018-09-19 03:27:53,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 03:27:53,536 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 115 [2018-09-19 03:27:53,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:53,547 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 03:27:53,547 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 03:27:53,550 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 129 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 03:27:53,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 03:27:53,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 03:27:53,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 03:27:53,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 943 transitions. [2018-09-19 03:27:53,598 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 943 transitions. Word has length 115 [2018-09-19 03:27:53,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:53,599 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 943 transitions. [2018-09-19 03:27:53,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:27:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 943 transitions. [2018-09-19 03:27:53,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-09-19 03:27:53,609 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:53,609 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:27:53,609 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:53,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1519322676, now seen corresponding path program 1 times [2018-09-19 03:27:53,610 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:53,610 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-09-19 03:27:53,611 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:27:53,619 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:53,620 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:56,751 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:03,336 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:03,336 INFO L272 AbstractInterpreter]: Visited 123 different actions 356 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:28:03,341 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:04,315 INFO L232 lantSequenceWeakener]: Weakened 149 states. On average, predicates are now at 73.27% of their original sizes. [2018-09-19 03:28:04,316 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:04,750 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:04,750 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:04,751 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:28:04,751 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:04,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:28:04,752 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:28:04,752 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:28:04,752 INFO L87 Difference]: Start difference. First operand 762 states and 943 transitions. Second operand 12 states. [2018-09-19 03:28:12,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:12,419 INFO L93 Difference]: Finished difference Result 1677 states and 2200 transitions. [2018-09-19 03:28:12,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:28:12,420 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 151 [2018-09-19 03:28:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:12,426 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 03:28:12,426 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 03:28:12,429 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 159 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-19 03:28:12,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 03:28:12,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 03:28:12,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 03:28:12,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1277 transitions. [2018-09-19 03:28:12,470 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1277 transitions. Word has length 151 [2018-09-19 03:28:12,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:12,471 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1277 transitions. [2018-09-19 03:28:12,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:28:12,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1277 transitions. [2018-09-19 03:28:12,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-09-19 03:28:12,474 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:12,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:28:12,475 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:12,475 INFO L82 PathProgramCache]: Analyzing trace with hash 729487603, now seen corresponding path program 1 times [2018-09-19 03:28:12,475 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:12,476 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 171 with the following transitions: [2018-09-19 03:28:12,476 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:28:12,482 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:12,482 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:22,001 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:22,001 INFO L272 AbstractInterpreter]: Visited 142 different actions 413 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:28:22,007 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:22,898 INFO L232 lantSequenceWeakener]: Weakened 168 states. On average, predicates are now at 73.21% of their original sizes. [2018-09-19 03:28:22,898 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:23,271 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:23,271 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:23,271 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:28:23,271 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:23,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:28:23,272 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:28:23,272 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:28:23,272 INFO L87 Difference]: Start difference. First operand 1056 states and 1277 transitions. Second operand 12 states. [2018-09-19 03:28:27,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:27,992 INFO L93 Difference]: Finished difference Result 2268 states and 2879 transitions. [2018-09-19 03:28:27,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 03:28:27,993 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 170 [2018-09-19 03:28:27,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:28,000 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 03:28:28,000 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 03:28:28,004 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 179 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 03:28:28,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 03:28:28,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 03:28:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 03:28:28,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1605 transitions. [2018-09-19 03:28:28,055 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1605 transitions. Word has length 170 [2018-09-19 03:28:28,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:28,055 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1605 transitions. [2018-09-19 03:28:28,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:28:28,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1605 transitions. [2018-09-19 03:28:28,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-09-19 03:28:28,058 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:28,059 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:28:28,059 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:28,059 INFO L82 PathProgramCache]: Analyzing trace with hash 103291638, now seen corresponding path program 1 times [2018-09-19 03:28:28,060 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:28,060 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 183 with the following transitions: [2018-09-19 03:28:28,060 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:28:28,063 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:28,064 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:29,389 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:34,440 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:34,441 INFO L272 AbstractInterpreter]: Visited 84 different actions 323 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:28:34,446 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:35,677 INFO L232 lantSequenceWeakener]: Weakened 180 states. On average, predicates are now at 73.23% of their original sizes. [2018-09-19 03:28:35,678 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:36,085 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:36,086 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:36,086 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:28:36,086 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:36,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:28:36,087 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:28:36,087 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:28:36,087 INFO L87 Difference]: Start difference. First operand 1352 states and 1605 transitions. Second operand 10 states. [2018-09-19 03:28:40,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:40,525 INFO L93 Difference]: Finished difference Result 2719 states and 3368 transitions. [2018-09-19 03:28:40,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:28:40,527 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 182 [2018-09-19 03:28:40,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:40,534 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 03:28:40,535 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 03:28:40,538 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 189 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 03:28:40,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 03:28:40,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 03:28:40,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 03:28:40,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1772 transitions. [2018-09-19 03:28:40,593 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1772 transitions. Word has length 182 [2018-09-19 03:28:40,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:40,593 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1772 transitions. [2018-09-19 03:28:40,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:28:40,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1772 transitions. [2018-09-19 03:28:40,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-09-19 03:28:40,596 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:40,597 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:28:40,597 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:40,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1778115283, now seen corresponding path program 1 times [2018-09-19 03:28:40,597 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:40,598 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2018-09-19 03:28:40,598 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:28:40,601 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:40,601 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:44,205 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:48,698 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:48,698 INFO L272 AbstractInterpreter]: Visited 88 different actions 341 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 03:28:48,704 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:49,770 INFO L232 lantSequenceWeakener]: Weakened 191 states. On average, predicates are now at 73.2% of their original sizes. [2018-09-19 03:28:49,771 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:50,230 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:50,230 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:50,230 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:28:50,230 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:50,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:28:50,231 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:28:50,231 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:28:50,231 INFO L87 Difference]: Start difference. First operand 1503 states and 1772 transitions. Second operand 13 states. [2018-09-19 03:28:57,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:57,803 INFO L93 Difference]: Finished difference Result 3686 states and 4637 transitions. [2018-09-19 03:28:57,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:28:57,807 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 193 [2018-09-19 03:28:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:57,825 INFO L225 Difference]: With dead ends: 3686 [2018-09-19 03:28:57,826 INFO L226 Difference]: Without dead ends: 2337 [2018-09-19 03:28:57,830 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 205 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:28:57,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2018-09-19 03:28:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2189. [2018-09-19 03:28:57,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2018-09-19 03:28:57,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2615 transitions. [2018-09-19 03:28:57,927 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2615 transitions. Word has length 193 [2018-09-19 03:28:57,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:57,927 INFO L480 AbstractCegarLoop]: Abstraction has 2189 states and 2615 transitions. [2018-09-19 03:28:57,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:28:57,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2615 transitions. [2018-09-19 03:28:57,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-09-19 03:28:57,932 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:57,932 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:28:57,933 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:57,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1806480903, now seen corresponding path program 1 times [2018-09-19 03:28:57,933 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:57,934 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 204 with the following transitions: [2018-09-19 03:28:57,934 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:28:57,937 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:57,937 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:01,845 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:29:15,352 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:29:15,352 INFO L272 AbstractInterpreter]: Visited 96 different actions 555 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:29:15,360 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:29:16,605 INFO L232 lantSequenceWeakener]: Weakened 201 states. On average, predicates are now at 73.17% of their original sizes. [2018-09-19 03:29:16,606 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:17,092 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:29:17,092 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:29:17,093 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:29:17,093 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:29:17,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:29:17,094 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:29:17,094 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:29:17,094 INFO L87 Difference]: Start difference. First operand 2189 states and 2615 transitions. Second operand 13 states. [2018-09-19 03:29:25,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:29:25,987 INFO L93 Difference]: Finished difference Result 5360 states and 6747 transitions. [2018-09-19 03:29:25,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:29:25,988 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 203 [2018-09-19 03:29:25,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:29:26,005 INFO L225 Difference]: With dead ends: 5360 [2018-09-19 03:29:26,006 INFO L226 Difference]: Without dead ends: 3325 [2018-09-19 03:29:26,014 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 215 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:29:26,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2018-09-19 03:29:26,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 3019. [2018-09-19 03:29:26,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3019 states. [2018-09-19 03:29:26,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 3715 transitions. [2018-09-19 03:29:26,138 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 3715 transitions. Word has length 203 [2018-09-19 03:29:26,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:29:26,138 INFO L480 AbstractCegarLoop]: Abstraction has 3019 states and 3715 transitions. [2018-09-19 03:29:26,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:29:26,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 3715 transitions. [2018-09-19 03:29:26,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-09-19 03:29:26,144 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:29:26,144 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:29:26,145 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:29:26,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1753826539, now seen corresponding path program 1 times [2018-09-19 03:29:26,145 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:29:26,146 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 220 with the following transitions: [2018-09-19 03:29:26,146 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:29:26,149 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:29:26,150 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:27,617 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:29:37,803 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:29:37,803 INFO L272 AbstractInterpreter]: Visited 121 different actions 471 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:29:37,812 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:29:38,950 INFO L232 lantSequenceWeakener]: Weakened 217 states. On average, predicates are now at 73.14% of their original sizes. [2018-09-19 03:29:38,950 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:39,442 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:29:39,442 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:29:39,442 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:29:39,442 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:29:39,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:29:39,443 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:29:39,443 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:29:39,443 INFO L87 Difference]: Start difference. First operand 3019 states and 3715 transitions. Second operand 13 states. [2018-09-19 03:29:47,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:29:47,505 INFO L93 Difference]: Finished difference Result 6300 states and 8063 transitions. [2018-09-19 03:29:47,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:29:47,512 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 219 [2018-09-19 03:29:47,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:29:47,525 INFO L225 Difference]: With dead ends: 6300 [2018-09-19 03:29:47,526 INFO L226 Difference]: Without dead ends: 3435 [2018-09-19 03:29:47,533 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 231 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:29:47,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2018-09-19 03:29:47,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3305. [2018-09-19 03:29:47,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3305 states. [2018-09-19 03:29:47,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4062 transitions. [2018-09-19 03:29:47,638 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4062 transitions. Word has length 219 [2018-09-19 03:29:47,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:29:47,639 INFO L480 AbstractCegarLoop]: Abstraction has 3305 states and 4062 transitions. [2018-09-19 03:29:47,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:29:47,639 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4062 transitions. [2018-09-19 03:29:47,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-09-19 03:29:47,645 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:29:47,645 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:29:47,645 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:29:47,646 INFO L82 PathProgramCache]: Analyzing trace with hash -231429724, now seen corresponding path program 1 times [2018-09-19 03:29:47,646 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:29:47,646 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-09-19 03:29:47,646 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:29:47,650 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:29:47,650 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:50,252 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:30:01,871 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:30:01,872 INFO L272 AbstractInterpreter]: Visited 124 different actions 603 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:30:01,879 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:30:03,105 INFO L232 lantSequenceWeakener]: Weakened 222 states. On average, predicates are now at 73.13% of their original sizes. [2018-09-19 03:30:03,106 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:30:03,382 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:30:03,382 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:30:03,382 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:30:03,382 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:30:03,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:30:03,383 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:30:03,383 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:30:03,383 INFO L87 Difference]: Start difference. First operand 3305 states and 4062 transitions. Second operand 10 states. [2018-09-19 03:30:09,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:30:09,011 INFO L93 Difference]: Finished difference Result 6634 states and 8307 transitions. [2018-09-19 03:30:09,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:30:09,012 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 224 [2018-09-19 03:30:09,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:30:09,026 INFO L225 Difference]: With dead ends: 6634 [2018-09-19 03:30:09,026 INFO L226 Difference]: Without dead ends: 3483 [2018-09-19 03:30:09,033 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 231 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 03:30:09,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2018-09-19 03:30:09,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3457. [2018-09-19 03:30:09,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3457 states. [2018-09-19 03:30:09,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 4260 transitions. [2018-09-19 03:30:09,149 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 4260 transitions. Word has length 224 [2018-09-19 03:30:09,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:30:09,150 INFO L480 AbstractCegarLoop]: Abstraction has 3457 states and 4260 transitions. [2018-09-19 03:30:09,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:30:09,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 4260 transitions. [2018-09-19 03:30:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-09-19 03:30:09,156 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:30:09,157 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:30:09,157 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:30:09,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1934054125, now seen corresponding path program 1 times [2018-09-19 03:30:09,157 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:30:09,157 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-09-19 03:30:09,158 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:30:09,161 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:30:09,161 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:30:13,369 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:30:25,402 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:30:25,402 INFO L272 AbstractInterpreter]: Visited 118 different actions 687 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:30:25,414 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:30:27,006 INFO L232 lantSequenceWeakener]: Weakened 223 states. On average, predicates are now at 73.13% of their original sizes. [2018-09-19 03:30:27,006 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:30:27,767 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:30:27,768 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:30:27,768 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:30:27,768 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:30:27,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:30:27,769 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:30:27,769 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:30:27,770 INFO L87 Difference]: Start difference. First operand 3457 states and 4260 transitions. Second operand 13 states. [2018-09-19 03:30:35,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:30:35,543 INFO L93 Difference]: Finished difference Result 8601 states and 11011 transitions. [2018-09-19 03:30:35,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:30:35,544 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 225 [2018-09-19 03:30:35,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:30:35,563 INFO L225 Difference]: With dead ends: 8601 [2018-09-19 03:30:35,563 INFO L226 Difference]: Without dead ends: 5298 [2018-09-19 03:30:35,572 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 237 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:30:35,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2018-09-19 03:30:35,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 4845. [2018-09-19 03:30:35,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4845 states. [2018-09-19 03:30:35,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4845 states to 4845 states and 6065 transitions. [2018-09-19 03:30:35,726 INFO L78 Accepts]: Start accepts. Automaton has 4845 states and 6065 transitions. Word has length 225 [2018-09-19 03:30:35,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:30:35,726 INFO L480 AbstractCegarLoop]: Abstraction has 4845 states and 6065 transitions. [2018-09-19 03:30:35,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:30:35,727 INFO L276 IsEmpty]: Start isEmpty. Operand 4845 states and 6065 transitions. [2018-09-19 03:30:35,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-09-19 03:30:35,733 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:30:35,734 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:30:35,734 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:30:35,734 INFO L82 PathProgramCache]: Analyzing trace with hash -989698269, now seen corresponding path program 1 times [2018-09-19 03:30:35,735 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:30:35,735 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-09-19 03:30:35,735 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:30:35,738 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:30:35,738 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:30:38,316 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:30:53,733 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:30:53,734 INFO L272 AbstractInterpreter]: Visited 124 different actions 723 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:30:53,739 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:30:55,050 INFO L232 lantSequenceWeakener]: Weakened 231 states. On average, predicates are now at 73.12% of their original sizes. [2018-09-19 03:30:55,051 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:30:55,418 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:30:55,418 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:30:55,418 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 03:30:55,419 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:30:55,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 03:30:55,419 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 03:30:55,420 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 03:30:55,420 INFO L87 Difference]: Start difference. First operand 4845 states and 6065 transitions. Second operand 11 states. [2018-09-19 03:31:03,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:31:03,493 INFO L93 Difference]: Finished difference Result 9755 states and 12399 transitions. [2018-09-19 03:31:03,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:31:03,496 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 233 [2018-09-19 03:31:03,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:31:03,515 INFO L225 Difference]: With dead ends: 9755 [2018-09-19 03:31:03,515 INFO L226 Difference]: Without dead ends: 5064 [2018-09-19 03:31:03,524 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 241 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 03:31:03,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5064 states. [2018-09-19 03:31:03,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5064 to 5004. [2018-09-19 03:31:03,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5004 states. [2018-09-19 03:31:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5004 states to 5004 states and 6279 transitions. [2018-09-19 03:31:03,672 INFO L78 Accepts]: Start accepts. Automaton has 5004 states and 6279 transitions. Word has length 233 [2018-09-19 03:31:03,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:31:03,673 INFO L480 AbstractCegarLoop]: Abstraction has 5004 states and 6279 transitions. [2018-09-19 03:31:03,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 03:31:03,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5004 states and 6279 transitions. [2018-09-19 03:31:03,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-09-19 03:31:03,682 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:31:03,682 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:31:03,683 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:31:03,683 INFO L82 PathProgramCache]: Analyzing trace with hash -760737280, now seen corresponding path program 1 times [2018-09-19 03:31:03,683 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:31:03,683 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 255 with the following transitions: [2018-09-19 03:31:03,684 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [181], [183], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [626], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:31:03,687 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:31:03,687 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:31:06,799 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:31:22,207 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:31:22,207 INFO L272 AbstractInterpreter]: Visited 124 different actions 723 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:31:22,216 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:31:23,640 INFO L232 lantSequenceWeakener]: Weakened 252 states. On average, predicates are now at 73.08% of their original sizes. [2018-09-19 03:31:23,641 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:31:23,930 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:31:23,930 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:31:23,930 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:31:23,930 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:31:23,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:31:23,931 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:31:23,931 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:31:23,932 INFO L87 Difference]: Start difference. First operand 5004 states and 6279 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 03:31:26,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 03:31:26,351 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 03:31:26,359 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 03:31:26,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:31:26 BoogieIcfgContainer [2018-09-19 03:31:26,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 03:31:26,361 INFO L168 Benchmark]: Toolchain (without parser) took 256170.16 ms. Allocated memory was 1.6 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.5 GB). Peak memory consumption was 226.1 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:26,363 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 03:31:26,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.66 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:26,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.34 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:26,365 INFO L168 Benchmark]: Boogie Preprocessor took 318.06 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -856.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:26,366 INFO L168 Benchmark]: RCFGBuilder took 3214.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 101.5 MB). Peak memory consumption was 101.5 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:26,367 INFO L168 Benchmark]: TraceAbstraction took 251717.88 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 2.0 GB). Free memory was 2.1 GB in the beginning and 3.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 167.6 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:26,372 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 808.66 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 100.34 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 318.06 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -856.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3214.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 101.5 MB). Peak memory consumption was 101.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 251717.88 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 2.0 GB). Free memory was 2.1 GB in the beginning and 3.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 167.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 88). Cancelled while BasicCegarLoop was constructing difference of abstraction (5004states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (330 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 251.6s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 88.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2385 SDtfs, 13159 SDslu, 3531 SDs, 0 SdLazy, 22589 SolverSat, 2845 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 75.4s Time, PredicateUnifierStatistics: 26 DeclaredPredicates, 2422 GetRequests, 2177 SyntacticMatches, 0 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5004occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 141.5s AbstIntTime, 13 AbstIntIterations, 13 AbstIntStrong, 0.9939894104873002 AbsIntWeakeningRatio, 0.13147583804962995 AbsIntAvgWeakeningVarsNumRemoved, 888.9342620809751 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 1388 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label20_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_03-31-26-397.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label20_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_03-31-26-397.csv Completed graceful shutdown