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_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 03:25:26,371 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 03:25:26,373 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 03:25:26,386 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 03:25:26,387 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 03:25:26,388 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 03:25:26,389 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 03:25:26,391 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 03:25:26,393 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 03:25:26,394 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 03:25:26,394 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 03:25:26,395 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 03:25:26,396 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 03:25:26,397 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 03:25:26,398 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 03:25:26,399 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 03:25:26,400 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 03:25:26,401 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 03:25:26,404 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 03:25:26,405 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 03:25:26,406 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 03:25:26,408 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 03:25:26,410 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 03:25:26,410 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 03:25:26,411 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 03:25:26,412 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 03:25:26,413 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 03:25:26,414 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 03:25:26,414 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 03:25:26,416 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 03:25:26,416 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 03:25:26,417 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 03:25:26,417 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 03:25:26,417 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 03:25:26,418 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 03:25:26,419 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 03:25:26,419 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 03:25:26,435 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 03:25:26,435 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 03:25:26,436 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 03:25:26,436 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 03:25:26,436 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 03:25:26,437 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 03:25:26,437 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 03:25:26,437 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 03:25:26,437 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 03:25:26,437 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 03:25:26,438 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 03:25:26,438 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 03:25:26,438 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 03:25:26,439 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 03:25:26,439 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 03:25:26,439 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 03:25:26,439 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 03:25:26,439 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 03:25:26,440 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 03:25:26,440 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 03:25:26,440 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 03:25:26,440 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 03:25:26,440 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 03:25:26,440 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 03:25:26,441 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:25:26,441 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 03:25:26,441 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 03:25:26,441 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 03:25:26,441 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 03:25:26,442 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 03:25:26,442 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 03:25:26,442 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 03:25:26,442 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 03:25:26,442 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 03:25:26,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 03:25:26,498 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 03:25:26,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 03:25:26,503 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 03:25:26,504 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 03:25:26,505 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label17_true-unreach-call.c [2018-09-19 03:25:26,860 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad7e866e/327bdd07f2cb4251bf1620d781a89628/FLAGcbe83e27a [2018-09-19 03:25:27,164 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 03:25:27,167 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label17_true-unreach-call.c [2018-09-19 03:25:27,193 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad7e866e/327bdd07f2cb4251bf1620d781a89628/FLAGcbe83e27a [2018-09-19 03:25:27,214 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad7e866e/327bdd07f2cb4251bf1620d781a89628 [2018-09-19 03:25:27,224 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 03:25:27,228 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 03:25:27,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 03:25:27,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 03:25:27,236 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 03:25:27,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:25:27" (1/1) ... [2018-09-19 03:25:27,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54423241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27, skipping insertion in model container [2018-09-19 03:25:27,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:25:27" (1/1) ... [2018-09-19 03:25:27,254 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 03:25:27,759 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:25:27,785 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 03:25:27,933 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:25:27,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27 WrapperNode [2018-09-19 03:25:27,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 03:25:27,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 03:25:27,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 03:25:27,997 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 03:25:28,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27" (1/1) ... [2018-09-19 03:25:28,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27" (1/1) ... [2018-09-19 03:25:28,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 03:25:28,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 03:25:28,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 03:25:28,153 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 03:25:28,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27" (1/1) ... [2018-09-19 03:25:28,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27" (1/1) ... [2018-09-19 03:25:28,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27" (1/1) ... [2018-09-19 03:25:28,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27" (1/1) ... [2018-09-19 03:25:28,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27" (1/1) ... [2018-09-19 03:25:28,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27" (1/1) ... [2018-09-19 03:25:28,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27" (1/1) ... [2018-09-19 03:25:28,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 03:25:28,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 03:25:28,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 03:25:28,446 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 03:25:28,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27" (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 03:25:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 03:25:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 03:25:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 03:25:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 03:25:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 03:25:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 03:25:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 03:25:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 03:25:32,514 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 03:25:32,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:25:32 BoogieIcfgContainer [2018-09-19 03:25:32,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 03:25:32,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 03:25:32,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 03:25:32,522 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 03:25:32,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:25:27" (1/3) ... [2018-09-19 03:25:32,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46805b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:25:32, skipping insertion in model container [2018-09-19 03:25:32,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:25:27" (2/3) ... [2018-09-19 03:25:32,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46805b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:25:32, skipping insertion in model container [2018-09-19 03:25:32,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:25:32" (3/3) ... [2018-09-19 03:25:32,528 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label17_true-unreach-call.c [2018-09-19 03:25:32,541 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 03:25:32,555 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 03:25:32,622 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 03:25:32,623 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 03:25:32,624 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 03:25:32,624 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 03:25:32,624 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 03:25:32,624 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 03:25:32,625 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 03:25:32,625 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 03:25:32,625 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 03:25:32,657 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 03:25:32,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-19 03:25:32,666 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:25:32,668 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:25:32,669 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:25:32,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1893194825, now seen corresponding path program 1 times [2018-09-19 03:25:32,678 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:25:32,679 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-09-19 03:25:32,683 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 03:25:32,746 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:25:32,746 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:25:33,964 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:25:33,965 INFO L272 AbstractInterpreter]: Visited 36 different actions 36 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 03:25:33,982 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:25:34,627 INFO L232 lantSequenceWeakener]: Weakened 35 states. On average, predicates are now at 75.03% of their original sizes. [2018-09-19 03:25:34,628 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:25:34,936 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:25:34,938 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:25:34,938 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 03:25:34,938 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:25:34,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 03:25:34,953 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 03:25:34,954 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:25:34,957 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 03:25:39,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:25:39,701 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 03:25:39,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 03:25:39,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-09-19 03:25:39,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:25:39,719 INFO L225 Difference]: With dead ends: 576 [2018-09-19 03:25:39,720 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 03:25:39,727 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:25:39,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 03:25:39,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 03:25:39,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 03:25:39,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 03:25:39,809 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 37 [2018-09-19 03:25:39,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:25:39,810 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 03:25:39,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 03:25:39,811 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 03:25:39,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-09-19 03:25:39,817 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:25:39,817 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:39,818 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:25:39,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1004761221, now seen corresponding path program 1 times [2018-09-19 03:25:39,818 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:25:39,818 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2018-09-19 03:25:39,819 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [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 03:25:39,827 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:25:39,827 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:25:41,501 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:25:44,496 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:25:44,496 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 03:25:44,507 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:25:45,392 INFO L232 lantSequenceWeakener]: Weakened 106 states. On average, predicates are now at 73.57% of their original sizes. [2018-09-19 03:25:45,392 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:25:45,898 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:25:45,898 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:25:45,898 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:25:45,899 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:25:45,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:25:45,900 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:25:45,900 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:25:45,901 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 03:25:51,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:25:51,706 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 03:25:51,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 03:25:51,710 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 108 [2018-09-19 03:25:51,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:25:51,715 INFO L225 Difference]: With dead ends: 717 [2018-09-19 03:25:51,715 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 03:25:51,719 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 114 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 03:25:51,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 03:25:51,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 03:25:51,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 03:25:51,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 659 transitions. [2018-09-19 03:25:51,765 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 659 transitions. Word has length 108 [2018-09-19 03:25:51,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:25:51,766 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 659 transitions. [2018-09-19 03:25:51,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:25:51,767 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 659 transitions. [2018-09-19 03:25:51,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-09-19 03:25:51,770 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:25:51,770 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:51,771 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:25:51,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1446169164, now seen corresponding path program 1 times [2018-09-19 03:25:51,771 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:25:51,771 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 118 with the following transitions: [2018-09-19 03:25:51,772 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [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 03:25:51,777 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:25:51,777 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:25:56,033 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:25:58,259 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:25:58,259 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 03:25:58,268 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:25:59,361 INFO L232 lantSequenceWeakener]: Weakened 115 states. On average, predicates are now at 73.51% of their original sizes. [2018-09-19 03:25:59,362 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:26:00,138 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:26:00,139 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:26:00,139 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:26:00,139 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:26:00,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:26:00,140 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:26:00,140 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:26:00,141 INFO L87 Difference]: Start difference. First operand 505 states and 659 transitions. Second operand 13 states. [2018-09-19 03:26:09,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:26:09,283 INFO L93 Difference]: Finished difference Result 1333 states and 2076 transitions. [2018-09-19 03:26:09,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 03:26:09,283 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 117 [2018-09-19 03:26:09,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:26:09,291 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 03:26:09,291 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 03:26:09,294 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 131 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 03:26:09,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 03:26:09,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 03:26:09,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 03:26:09,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 943 transitions. [2018-09-19 03:26:09,338 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 943 transitions. Word has length 117 [2018-09-19 03:26:09,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:26:09,339 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 943 transitions. [2018-09-19 03:26:09,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:26:09,339 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 943 transitions. [2018-09-19 03:26:09,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-09-19 03:26:09,343 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:26:09,344 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:26:09,344 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:26:09,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1179733828, now seen corresponding path program 1 times [2018-09-19 03:26:09,345 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:26:09,345 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-09-19 03:26:09,345 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [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 03:26:09,351 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:26:09,351 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:26:12,282 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:26:18,984 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:26:18,985 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 03:26:18,990 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:26:20,004 INFO L232 lantSequenceWeakener]: Weakened 151 states. On average, predicates are now at 73.32% of their original sizes. [2018-09-19 03:26:20,005 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:26:20,508 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:26:20,508 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:26:20,508 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:26:20,508 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:26:20,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:26:20,509 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:26:20,510 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:26:20,510 INFO L87 Difference]: Start difference. First operand 762 states and 943 transitions. Second operand 12 states. [2018-09-19 03:26:30,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:26:30,676 INFO L93 Difference]: Finished difference Result 1677 states and 2200 transitions. [2018-09-19 03:26:30,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:26:30,677 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 153 [2018-09-19 03:26:30,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:26:30,684 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 03:26:30,684 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 03:26:30,687 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 161 GetRequests, 142 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 03:26:30,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 03:26:30,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 03:26:30,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 03:26:30,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1277 transitions. [2018-09-19 03:26:30,730 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1277 transitions. Word has length 153 [2018-09-19 03:26:30,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:26:30,731 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1277 transitions. [2018-09-19 03:26:30,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:26:30,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1277 transitions. [2018-09-19 03:26:30,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-09-19 03:26:30,734 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:26:30,735 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:26:30,735 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:26:30,735 INFO L82 PathProgramCache]: Analyzing trace with hash 772445179, now seen corresponding path program 1 times [2018-09-19 03:26:30,736 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:26:30,736 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-09-19 03:26:30,736 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [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 03:26:30,742 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:26:30,743 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:26:39,497 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:26:39,498 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 03:26:39,506 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:26:40,474 INFO L232 lantSequenceWeakener]: Weakened 170 states. On average, predicates are now at 73.26% of their original sizes. [2018-09-19 03:26:40,474 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:26:40,863 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:26:40,864 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:26:40,864 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:26:40,864 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:26:40,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:26:40,865 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:26:40,865 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:26:40,865 INFO L87 Difference]: Start difference. First operand 1056 states and 1277 transitions. Second operand 12 states. [2018-09-19 03:26:48,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:26:48,164 INFO L93 Difference]: Finished difference Result 2268 states and 2879 transitions. [2018-09-19 03:26:48,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 03:26:48,165 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 172 [2018-09-19 03:26:48,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:26:48,173 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 03:26:48,173 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 03:26:48,176 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 181 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 03:26:48,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 03:26:48,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 03:26:48,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 03:26:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1605 transitions. [2018-09-19 03:26:48,237 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1605 transitions. Word has length 172 [2018-09-19 03:26:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:26:48,238 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1605 transitions. [2018-09-19 03:26:48,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:26:48,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1605 transitions. [2018-09-19 03:26:48,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-09-19 03:26:48,241 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:26:48,242 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:26:48,242 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:26:48,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1478907618, now seen corresponding path program 1 times [2018-09-19 03:26:48,243 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:26:48,243 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-09-19 03:26:48,243 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [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 03:26:48,254 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:26:48,254 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:26:49,716 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:26:54,580 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:26:54,581 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 03:26:54,585 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:26:55,785 INFO L232 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 73.27% of their original sizes. [2018-09-19 03:26:55,785 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:26:56,104 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:26:56,105 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:26:56,105 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:26:56,105 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:26:56,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:26:56,106 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:26:56,106 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:26:56,106 INFO L87 Difference]: Start difference. First operand 1352 states and 1605 transitions. Second operand 10 states. [2018-09-19 03:27:01,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:01,111 INFO L93 Difference]: Finished difference Result 2719 states and 3368 transitions. [2018-09-19 03:27:01,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:27:01,117 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 184 [2018-09-19 03:27:01,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:01,130 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 03:27:01,130 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 03:27:01,134 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 191 GetRequests, 175 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 03:27:01,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 03:27:01,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 03:27:01,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 03:27:01,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1772 transitions. [2018-09-19 03:27:01,211 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1772 transitions. Word has length 184 [2018-09-19 03:27:01,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:01,211 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1772 transitions. [2018-09-19 03:27:01,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:27:01,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1772 transitions. [2018-09-19 03:27:01,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-09-19 03:27:01,216 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:01,216 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:27:01,217 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:01,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1869592197, now seen corresponding path program 1 times [2018-09-19 03:27:01,218 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:01,218 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-09-19 03:27:01,218 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [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 03:27:01,224 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:01,224 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:04,582 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:27:08,156 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:08,156 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 03:27:08,162 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:09,377 INFO L232 lantSequenceWeakener]: Weakened 193 states. On average, predicates are now at 73.24% of their original sizes. [2018-09-19 03:27:09,378 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:09,854 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:09,855 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:09,855 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:27:09,855 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:09,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:27:09,856 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:27:09,856 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:27:09,857 INFO L87 Difference]: Start difference. First operand 1503 states and 1772 transitions. Second operand 13 states. [2018-09-19 03:27:20,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:20,112 INFO L93 Difference]: Finished difference Result 3686 states and 4637 transitions. [2018-09-19 03:27:20,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:27:20,122 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 195 [2018-09-19 03:27:20,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:20,134 INFO L225 Difference]: With dead ends: 3686 [2018-09-19 03:27:20,134 INFO L226 Difference]: Without dead ends: 2337 [2018-09-19 03:27:20,138 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 207 GetRequests, 183 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 03:27:20,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2018-09-19 03:27:20,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2189. [2018-09-19 03:27:20,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2018-09-19 03:27:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2615 transitions. [2018-09-19 03:27:20,220 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2615 transitions. Word has length 195 [2018-09-19 03:27:20,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:20,221 INFO L480 AbstractCegarLoop]: Abstraction has 2189 states and 2615 transitions. [2018-09-19 03:27:20,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:27:20,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2615 transitions. [2018-09-19 03:27:20,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-09-19 03:27:20,226 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:20,227 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:27:20,227 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:20,227 INFO L82 PathProgramCache]: Analyzing trace with hash 58486703, now seen corresponding path program 1 times [2018-09-19 03:27:20,228 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:20,228 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-09-19 03:27:20,228 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [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 03:27:20,231 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:20,231 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:23,583 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:27:36,533 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:36,533 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 03:27:36,540 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:37,943 INFO L232 lantSequenceWeakener]: Weakened 203 states. On average, predicates are now at 73.21% of their original sizes. [2018-09-19 03:27:37,943 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:39,141 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:39,141 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:39,141 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:27:39,142 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:39,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:27:39,143 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:27:39,143 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:27:39,143 INFO L87 Difference]: Start difference. First operand 2189 states and 2615 transitions. Second operand 13 states. [2018-09-19 03:27:51,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:51,685 INFO L93 Difference]: Finished difference Result 5360 states and 6747 transitions. [2018-09-19 03:27:51,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:27:51,686 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 205 [2018-09-19 03:27:51,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:51,702 INFO L225 Difference]: With dead ends: 5360 [2018-09-19 03:27:51,702 INFO L226 Difference]: Without dead ends: 3325 [2018-09-19 03:27:51,709 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 217 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:27:51,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2018-09-19 03:27:51,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 3019. [2018-09-19 03:27:51,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3019 states. [2018-09-19 03:27:51,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 3715 transitions. [2018-09-19 03:27:51,817 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 3715 transitions. Word has length 205 [2018-09-19 03:27:51,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:51,818 INFO L480 AbstractCegarLoop]: Abstraction has 3019 states and 3715 transitions. [2018-09-19 03:27:51,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:27:51,818 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 3715 transitions. [2018-09-19 03:27:51,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-09-19 03:27:51,823 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:51,823 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:27:51,823 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:51,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1960473981, now seen corresponding path program 1 times [2018-09-19 03:27:51,824 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:51,824 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-09-19 03:27:51,824 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [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 03:27:51,828 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:51,828 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:53,297 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:02,041 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:02,042 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 03:28:02,050 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:03,209 INFO L232 lantSequenceWeakener]: Weakened 219 states. On average, predicates are now at 73.18% of their original sizes. [2018-09-19 03:28:03,209 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:03,725 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:03,726 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:03,726 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:28:03,726 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:03,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:28:03,727 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:28:03,727 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:28:03,727 INFO L87 Difference]: Start difference. First operand 3019 states and 3715 transitions. Second operand 13 states. [2018-09-19 03:28:12,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:12,550 INFO L93 Difference]: Finished difference Result 6300 states and 8063 transitions. [2018-09-19 03:28:12,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:28:12,551 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 221 [2018-09-19 03:28:12,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:12,564 INFO L225 Difference]: With dead ends: 6300 [2018-09-19 03:28:12,565 INFO L226 Difference]: Without dead ends: 3435 [2018-09-19 03:28:12,573 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 233 GetRequests, 209 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 03:28:12,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2018-09-19 03:28:12,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3305. [2018-09-19 03:28:12,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3305 states. [2018-09-19 03:28:12,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4062 transitions. [2018-09-19 03:28:12,687 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4062 transitions. Word has length 221 [2018-09-19 03:28:12,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:12,688 INFO L480 AbstractCegarLoop]: Abstraction has 3305 states and 4062 transitions. [2018-09-19 03:28:12,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:28:12,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4062 transitions. [2018-09-19 03:28:12,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-09-19 03:28:12,694 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:12,694 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:28:12,694 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:12,695 INFO L82 PathProgramCache]: Analyzing trace with hash 608876684, now seen corresponding path program 1 times [2018-09-19 03:28:12,695 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:12,695 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 227 with the following transitions: [2018-09-19 03:28:12,695 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [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 03:28:12,698 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:12,699 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:15,297 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:25,997 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:25,997 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 03:28:26,005 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:27,275 INFO L232 lantSequenceWeakener]: Weakened 224 states. On average, predicates are now at 73.17% of their original sizes. [2018-09-19 03:28:27,276 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:27,557 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:27,557 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:27,557 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:28:27,557 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:27,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:28:27,558 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:28:27,558 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:28:27,559 INFO L87 Difference]: Start difference. First operand 3305 states and 4062 transitions. Second operand 10 states. [2018-09-19 03:28:31,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:31,932 INFO L93 Difference]: Finished difference Result 6634 states and 8307 transitions. [2018-09-19 03:28:31,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:28:31,939 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 226 [2018-09-19 03:28:31,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:31,954 INFO L225 Difference]: With dead ends: 6634 [2018-09-19 03:28:31,955 INFO L226 Difference]: Without dead ends: 3483 [2018-09-19 03:28:31,963 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 233 GetRequests, 217 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 03:28:31,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2018-09-19 03:28:32,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3457. [2018-09-19 03:28:32,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3457 states. [2018-09-19 03:28:32,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 4260 transitions. [2018-09-19 03:28:32,095 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 4260 transitions. Word has length 226 [2018-09-19 03:28:32,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:32,096 INFO L480 AbstractCegarLoop]: Abstraction has 3457 states and 4260 transitions. [2018-09-19 03:28:32,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:28:32,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 4260 transitions. [2018-09-19 03:28:32,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-09-19 03:28:32,102 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:32,102 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:28:32,102 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:32,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1839955013, now seen corresponding path program 1 times [2018-09-19 03:28:32,103 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:32,103 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-09-19 03:28:32,103 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [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 03:28:32,107 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:32,107 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:36,209 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:48,169 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:48,169 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 03:28:48,176 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:49,792 INFO L232 lantSequenceWeakener]: Weakened 225 states. On average, predicates are now at 73.17% of their original sizes. [2018-09-19 03:28:49,792 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:50,537 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:50,537 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:50,537 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:28:50,537 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:50,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:28:50,538 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:28:50,538 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:28:50,538 INFO L87 Difference]: Start difference. First operand 3457 states and 4260 transitions. Second operand 13 states. [2018-09-19 03:28:57,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:57,814 INFO L93 Difference]: Finished difference Result 8601 states and 11011 transitions. [2018-09-19 03:28:57,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:28:57,815 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 227 [2018-09-19 03:28:57,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:57,834 INFO L225 Difference]: With dead ends: 8601 [2018-09-19 03:28:57,834 INFO L226 Difference]: Without dead ends: 5298 [2018-09-19 03:28:57,842 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:28:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2018-09-19 03:28:57,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 4845. [2018-09-19 03:28:57,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4845 states. [2018-09-19 03:28:57,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4845 states to 4845 states and 6065 transitions. [2018-09-19 03:28:57,999 INFO L78 Accepts]: Start accepts. Automaton has 4845 states and 6065 transitions. Word has length 227 [2018-09-19 03:28:58,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:58,000 INFO L480 AbstractCegarLoop]: Abstraction has 4845 states and 6065 transitions. [2018-09-19 03:28:58,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:28:58,000 INFO L276 IsEmpty]: Start isEmpty. Operand 4845 states and 6065 transitions. [2018-09-19 03:28:58,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-09-19 03:28:58,007 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:58,007 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:28:58,007 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:58,008 INFO L82 PathProgramCache]: Analyzing trace with hash -450975285, now seen corresponding path program 1 times [2018-09-19 03:28:58,008 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:58,008 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 236 with the following transitions: [2018-09-19 03:28:58,008 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [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 03:28:58,011 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:58,012 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:00,564 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:29:14,779 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:29:14,780 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 03:29:14,787 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:29:16,022 INFO L232 lantSequenceWeakener]: Weakened 233 states. On average, predicates are now at 73.15% of their original sizes. [2018-09-19 03:29:16,022 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:16,369 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:29:16,369 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:29:16,369 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 03:29:16,369 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:29:16,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 03:29:16,370 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 03:29:16,370 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 03:29:16,371 INFO L87 Difference]: Start difference. First operand 4845 states and 6065 transitions. Second operand 11 states. [2018-09-19 03:29:21,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:29:21,224 INFO L93 Difference]: Finished difference Result 9755 states and 12399 transitions. [2018-09-19 03:29:21,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:29:21,228 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 235 [2018-09-19 03:29:21,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:29:21,258 INFO L225 Difference]: With dead ends: 9755 [2018-09-19 03:29:21,259 INFO L226 Difference]: Without dead ends: 5064 [2018-09-19 03:29:21,272 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 243 GetRequests, 225 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 03:29:21,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5064 states. [2018-09-19 03:29:21,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5064 to 5004. [2018-09-19 03:29:21,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5004 states. [2018-09-19 03:29:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5004 states to 5004 states and 6279 transitions. [2018-09-19 03:29:21,447 INFO L78 Accepts]: Start accepts. Automaton has 5004 states and 6279 transitions. Word has length 235 [2018-09-19 03:29:21,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:29:21,448 INFO L480 AbstractCegarLoop]: Abstraction has 5004 states and 6279 transitions. [2018-09-19 03:29:21,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 03:29:21,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5004 states and 6279 transitions. [2018-09-19 03:29:21,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-09-19 03:29:21,459 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:29:21,460 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:29:21,460 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:29:21,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1986890216, now seen corresponding path program 1 times [2018-09-19 03:29:21,463 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:29:21,463 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 257 with the following transitions: [2018-09-19 03:29:21,464 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [197], [199], [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 03:29:21,468 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:29:21,468 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:24,265 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:29:39,067 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:29:39,067 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 03:29:39,075 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-19 03:29:40,416 INFO L232 lantSequenceWeakener]: Weakened 254 states. On average, predicates are now at 73.12% of their original sizes. [2018-09-19 03:29:40,416 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:40,432 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 03:29:40,435 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 03:29:40,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:29:40 BoogieIcfgContainer [2018-09-19 03:29:40,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 03:29:40,437 INFO L168 Benchmark]: Toolchain (without parser) took 253212.05 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 654.9 MB. Max. memory is 7.1 GB. [2018-09-19 03:29:40,438 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 03:29:40,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 03:29:40,440 INFO L168 Benchmark]: Boogie Procedure Inliner took 155.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 03:29:40,441 INFO L168 Benchmark]: Boogie Preprocessor took 292.44 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -834.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2018-09-19 03:29:40,442 INFO L168 Benchmark]: RCFGBuilder took 4070.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 98.4 MB). Peak memory consumption was 98.4 MB. Max. memory is 7.1 GB. [2018-09-19 03:29:40,442 INFO L168 Benchmark]: TraceAbstraction took 247918.78 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 605.5 MB. Max. memory is 7.1 GB. [2018-09-19 03:29:40,447 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 155.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 292.44 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -834.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4070.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 98.4 MB). Peak memory consumption was 98.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 247918.78 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 605.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 94). Cancelled while BasicCegarLoop was analyzing trace of length 257 with TraceHistMax 3, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 247.8s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 90.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2362 SDtfs, 12067 SDslu, 4134 SDs, 0 SdLazy, 23918 SolverSat, 2751 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 77.8s Time, PredicateUnifierStatistics: 24 DeclaredPredicates, 2186 GetRequests, 1956 SyntacticMatches, 0 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 10.5s 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, 134.5s AbstIntTime, 13 AbstIntIterations, 13 AbstIntStrong, 0.9940566835511532 AbsIntWeakeningRatio, 0.1300043047783039 AbsIntAvgWeakeningVarsNumRemoved, 889.4334911752045 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_label17_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_03-29-40-465.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label17_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_03-29-40-465.csv Completed graceful shutdown