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_label21_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 03:27:14,339 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 03:27:14,342 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 03:27:14,357 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 03:27:14,357 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 03:27:14,358 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 03:27:14,360 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 03:27:14,362 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 03:27:14,364 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 03:27:14,364 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 03:27:14,365 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 03:27:14,366 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 03:27:14,367 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 03:27:14,368 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 03:27:14,369 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 03:27:14,370 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 03:27:14,371 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 03:27:14,374 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 03:27:14,376 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 03:27:14,378 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 03:27:14,379 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 03:27:14,381 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 03:27:14,383 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 03:27:14,384 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 03:27:14,384 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 03:27:14,385 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 03:27:14,386 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 03:27:14,387 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 03:27:14,388 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 03:27:14,389 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 03:27:14,390 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 03:27:14,390 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 03:27:14,391 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 03:27:14,391 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 03:27:14,394 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 03:27:14,395 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 03:27:14,395 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 03:27:14,430 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 03:27:14,431 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 03:27:14,432 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 03:27:14,432 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 03:27:14,433 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 03:27:14,433 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 03:27:14,433 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 03:27:14,434 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 03:27:14,434 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 03:27:14,435 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 03:27:14,435 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 03:27:14,435 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 03:27:14,436 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 03:27:14,436 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 03:27:14,438 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 03:27:14,438 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 03:27:14,438 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 03:27:14,438 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 03:27:14,439 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 03:27:14,439 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 03:27:14,439 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 03:27:14,441 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 03:27:14,441 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 03:27:14,441 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 03:27:14,441 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:27:14,442 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 03:27:14,442 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 03:27:14,442 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 03:27:14,442 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 03:27:14,442 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 03:27:14,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 03:27:14,443 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 03:27:14,443 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 03:27:14,443 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 03:27:14,516 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 03:27:14,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 03:27:14,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 03:27:14,543 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 03:27:14,544 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 03:27:14,545 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label21_true-unreach-call.c [2018-09-19 03:27:14,960 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6e0cc3cf/7dac4e1ce8dd4d6ea623129388ca2d95/FLAGd38723f06 [2018-09-19 03:27:15,222 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 03:27:15,223 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label21_true-unreach-call.c [2018-09-19 03:27:15,241 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6e0cc3cf/7dac4e1ce8dd4d6ea623129388ca2d95/FLAGd38723f06 [2018-09-19 03:27:15,259 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6e0cc3cf/7dac4e1ce8dd4d6ea623129388ca2d95 [2018-09-19 03:27:15,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 03:27:15,277 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 03:27:15,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 03:27:15,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 03:27:15,286 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 03:27:15,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:27:15" (1/1) ... [2018-09-19 03:27:15,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746fe49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:15, skipping insertion in model container [2018-09-19 03:27:15,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:27:15" (1/1) ... [2018-09-19 03:27:15,305 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 03:27:15,813 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:27:15,833 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 03:27:15,965 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:27:16,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16 WrapperNode [2018-09-19 03:27:16,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 03:27:16,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 03:27:16,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 03:27:16,050 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 03:27:16,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 03:27:16,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 03:27:16,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 03:27:16,222 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 03:27:16,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... [2018-09-19 03:27:16,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 03:27:16,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 03:27:16,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 03:27:16,554 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 03:27:16,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:27:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 03:27:16,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 03:27:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 03:27:16,640 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 03:27:16,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 03:27:16,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 03:27:16,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 03:27:16,644 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 03:27:19,807 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 03:27:19,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:27:19 BoogieIcfgContainer [2018-09-19 03:27:19,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 03:27:19,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 03:27:19,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 03:27:19,814 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 03:27:19,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:27:15" (1/3) ... [2018-09-19 03:27:19,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a6bc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:27:19, skipping insertion in model container [2018-09-19 03:27:19,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:16" (2/3) ... [2018-09-19 03:27:19,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a6bc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:27:19, skipping insertion in model container [2018-09-19 03:27:19,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:27:19" (3/3) ... [2018-09-19 03:27:19,820 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label21_true-unreach-call.c [2018-09-19 03:27:19,830 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 03:27:19,840 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 03:27:19,893 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 03:27:19,893 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 03:27:19,894 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 03:27:19,894 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 03:27:19,894 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 03:27:19,894 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 03:27:19,894 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 03:27:19,894 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 03:27:19,895 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 03:27:19,921 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 03:27:19,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-19 03:27:19,929 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:19,930 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] [2018-09-19 03:27:19,931 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:19,937 INFO L82 PathProgramCache]: Analyzing trace with hash 763875860, now seen corresponding path program 1 times [2018-09-19 03:27:19,939 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:19,940 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2018-09-19 03:27:19,943 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], [173], [175], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 03:27:20,006 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:20,007 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:21,076 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:21,078 INFO L272 AbstractInterpreter]: Visited 33 different actions 33 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 03:27:21,093 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:21,586 INFO L232 lantSequenceWeakener]: Weakened 32 states. On average, predicates are now at 74.82% of their original sizes. [2018-09-19 03:27:21,587 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:21,889 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:21,891 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:21,892 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 03:27:21,892 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:21,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 03:27:21,907 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 03:27:21,907 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:27:21,910 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 03:27:25,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:25,452 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 03:27:25,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 03:27:25,454 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-09-19 03:27:25,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:25,473 INFO L225 Difference]: With dead ends: 576 [2018-09-19 03:27:25,473 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 03:27:25,485 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 33 GetRequests, 29 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 03:27:25,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 03:27:25,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 03:27:25,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 03:27:25,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 03:27:25,564 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 34 [2018-09-19 03:27:25,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:25,564 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 03:27:25,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 03:27:25,565 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 03:27:25,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-09-19 03:27:25,570 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:25,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:27:25,571 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:25,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1453618365, now seen corresponding path program 1 times [2018-09-19 03:27:25,571 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:25,572 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 106 with the following transitions: [2018-09-19 03:27:25,572 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:27:25,579 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:25,579 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:27,045 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:27:30,288 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:30,288 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:27:30,293 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:31,342 INFO L232 lantSequenceWeakener]: Weakened 103 states. On average, predicates are now at 73.47% of their original sizes. [2018-09-19 03:27:31,342 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:31,938 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:31,938 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:31,938 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:27:31,938 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:31,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:27:31,940 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:27:31,940 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:27:31,941 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 03:27:39,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:39,188 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 03:27:39,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 03:27:39,192 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2018-09-19 03:27:39,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:39,199 INFO L225 Difference]: With dead ends: 717 [2018-09-19 03:27:39,200 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 03:27:39,203 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 03:27:39,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 03:27:39,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 03:27:39,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 03:27:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 659 transitions. [2018-09-19 03:27:39,255 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 659 transitions. Word has length 105 [2018-09-19 03:27:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:39,258 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 659 transitions. [2018-09-19 03:27:39,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:27:39,258 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 659 transitions. [2018-09-19 03:27:39,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-09-19 03:27:39,264 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:39,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:27:39,264 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:39,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1676021384, now seen corresponding path program 1 times [2018-09-19 03:27:39,265 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:39,265 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 115 with the following transitions: [2018-09-19 03:27:39,266 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:27:39,271 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:39,272 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:42,908 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:27:45,652 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:45,653 INFO L272 AbstractInterpreter]: Visited 87 different actions 248 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:27:45,685 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:46,696 INFO L232 lantSequenceWeakener]: Weakened 112 states. On average, predicates are now at 73.41% of their original sizes. [2018-09-19 03:27:46,697 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:47,717 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:47,718 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:47,718 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:27:47,718 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:47,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:27:47,719 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:27:47,720 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:27:47,720 INFO L87 Difference]: Start difference. First operand 505 states and 659 transitions. Second operand 13 states. [2018-09-19 03:27:59,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:59,101 INFO L93 Difference]: Finished difference Result 1333 states and 2076 transitions. [2018-09-19 03:27:59,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 03:27:59,102 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 114 [2018-09-19 03:27:59,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:59,110 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 03:27:59,111 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 03:27:59,113 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 128 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 03:27:59,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 03:27:59,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 03:27:59,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 03:27:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 943 transitions. [2018-09-19 03:27:59,161 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 943 transitions. Word has length 114 [2018-09-19 03:27:59,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:59,162 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 943 transitions. [2018-09-19 03:27:59,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:27:59,162 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 943 transitions. [2018-09-19 03:27:59,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-09-19 03:27:59,166 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:59,166 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:27:59,167 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:59,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1275256064, now seen corresponding path program 1 times [2018-09-19 03:27:59,167 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:59,167 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-09-19 03:27:59,168 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:27:59,174 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:59,174 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:02,120 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:08,453 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:08,453 INFO L272 AbstractInterpreter]: Visited 123 different actions 356 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:28:08,459 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:09,432 INFO L232 lantSequenceWeakener]: Weakened 148 states. On average, predicates are now at 73.24% of their original sizes. [2018-09-19 03:28:09,436 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:09,913 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:09,913 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:09,913 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:28:09,914 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:09,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:28:09,914 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:28:09,915 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:28:09,915 INFO L87 Difference]: Start difference. First operand 762 states and 943 transitions. Second operand 12 states. [2018-09-19 03:28:19,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:19,853 INFO L93 Difference]: Finished difference Result 1677 states and 2200 transitions. [2018-09-19 03:28:19,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:28:19,854 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 150 [2018-09-19 03:28:19,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:19,861 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 03:28:19,861 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 03:28:19,864 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 158 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-19 03:28:19,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 03:28:19,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 03:28:19,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 03:28:19,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1277 transitions. [2018-09-19 03:28:19,908 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1277 transitions. Word has length 150 [2018-09-19 03:28:19,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:19,909 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1277 transitions. [2018-09-19 03:28:19,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:28:19,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1277 transitions. [2018-09-19 03:28:19,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-09-19 03:28:19,912 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:19,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:28:19,913 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:19,913 INFO L82 PathProgramCache]: Analyzing trace with hash -218739005, now seen corresponding path program 1 times [2018-09-19 03:28:19,913 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:19,914 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 170 with the following transitions: [2018-09-19 03:28:19,914 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:28:19,922 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:19,923 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:29,085 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:29,086 INFO L272 AbstractInterpreter]: Visited 142 different actions 413 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:28:29,091 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:30,008 INFO L232 lantSequenceWeakener]: Weakened 167 states. On average, predicates are now at 73.18% of their original sizes. [2018-09-19 03:28:30,009 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:30,400 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:30,400 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:30,401 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:28:30,401 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:30,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:28:30,402 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:28:30,402 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:28:30,402 INFO L87 Difference]: Start difference. First operand 1056 states and 1277 transitions. Second operand 12 states. [2018-09-19 03:28:35,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:35,016 INFO L93 Difference]: Finished difference Result 2268 states and 2879 transitions. [2018-09-19 03:28:35,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 03:28:35,017 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 169 [2018-09-19 03:28:35,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:35,024 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 03:28:35,024 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 03:28:35,027 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 178 GetRequests, 158 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 03:28:35,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 03:28:35,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 03:28:35,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 03:28:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1605 transitions. [2018-09-19 03:28:35,078 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1605 transitions. Word has length 169 [2018-09-19 03:28:35,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:35,078 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1605 transitions. [2018-09-19 03:28:35,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:28:35,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1605 transitions. [2018-09-19 03:28:35,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-09-19 03:28:35,081 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:35,081 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:28:35,082 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:35,082 INFO L82 PathProgramCache]: Analyzing trace with hash -908240769, now seen corresponding path program 1 times [2018-09-19 03:28:35,082 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:35,082 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 182 with the following transitions: [2018-09-19 03:28:35,083 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:28:35,086 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:35,086 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:36,316 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:40,799 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:40,799 INFO L272 AbstractInterpreter]: Visited 84 different actions 323 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:28:40,806 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:41,874 INFO L232 lantSequenceWeakener]: Weakened 179 states. On average, predicates are now at 73.2% of their original sizes. [2018-09-19 03:28:41,875 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:42,269 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:42,269 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:42,269 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:28:42,269 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:42,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:28:42,270 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:28:42,270 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:28:42,271 INFO L87 Difference]: Start difference. First operand 1352 states and 1605 transitions. Second operand 10 states. [2018-09-19 03:28:46,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:46,497 INFO L93 Difference]: Finished difference Result 2719 states and 3368 transitions. [2018-09-19 03:28:46,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:28:46,498 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2018-09-19 03:28:46,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:46,508 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 03:28:46,508 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 03:28:46,513 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 188 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 03:28:46,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 03:28:46,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 03:28:46,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 03:28:46,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1772 transitions. [2018-09-19 03:28:46,593 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1772 transitions. Word has length 181 [2018-09-19 03:28:46,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:46,594 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1772 transitions. [2018-09-19 03:28:46,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:28:46,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1772 transitions. [2018-09-19 03:28:46,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-09-19 03:28:46,598 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:46,599 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:28:46,599 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:46,599 INFO L82 PathProgramCache]: Analyzing trace with hash -491249760, now seen corresponding path program 1 times [2018-09-19 03:28:46,599 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:46,600 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-09-19 03:28:46,600 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:28:46,602 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:46,603 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:49,865 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:53,983 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:53,983 INFO L272 AbstractInterpreter]: Visited 88 different actions 341 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 03:28:53,989 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:55,202 INFO L232 lantSequenceWeakener]: Weakened 190 states. On average, predicates are now at 73.18% of their original sizes. [2018-09-19 03:28:55,202 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:55,685 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:55,685 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:55,686 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:28:55,686 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:55,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:28:55,687 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:28:55,687 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:28:55,687 INFO L87 Difference]: Start difference. First operand 1503 states and 1772 transitions. Second operand 13 states. [2018-09-19 03:29:02,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:29:02,341 INFO L93 Difference]: Finished difference Result 3686 states and 4637 transitions. [2018-09-19 03:29:02,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:29:02,343 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 192 [2018-09-19 03:29:02,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:29:02,352 INFO L225 Difference]: With dead ends: 3686 [2018-09-19 03:29:02,352 INFO L226 Difference]: Without dead ends: 2337 [2018-09-19 03:29:02,357 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 204 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:29:02,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2018-09-19 03:29:02,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2189. [2018-09-19 03:29:02,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2018-09-19 03:29:02,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2615 transitions. [2018-09-19 03:29:02,436 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2615 transitions. Word has length 192 [2018-09-19 03:29:02,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:29:02,437 INFO L480 AbstractCegarLoop]: Abstraction has 2189 states and 2615 transitions. [2018-09-19 03:29:02,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:29:02,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2615 transitions. [2018-09-19 03:29:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-09-19 03:29:02,440 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:29:02,441 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:29:02,441 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:29:02,441 INFO L82 PathProgramCache]: Analyzing trace with hash 660897900, now seen corresponding path program 1 times [2018-09-19 03:29:02,441 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:29:02,441 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-09-19 03:29:02,442 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:29:02,444 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:29:02,444 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:05,928 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:29:18,906 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:29:18,906 INFO L272 AbstractInterpreter]: Visited 96 different actions 555 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:29:18,914 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:29:20,185 INFO L232 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 73.15% of their original sizes. [2018-09-19 03:29:20,185 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:20,716 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:29:20,717 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:29:20,717 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:29:20,717 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:29:20,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:29:20,718 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:29:20,718 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:29:20,719 INFO L87 Difference]: Start difference. First operand 2189 states and 2615 transitions. Second operand 13 states. [2018-09-19 03:29:31,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:29:31,022 INFO L93 Difference]: Finished difference Result 5360 states and 6747 transitions. [2018-09-19 03:29:31,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:29:31,031 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 202 [2018-09-19 03:29:31,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:29:31,046 INFO L225 Difference]: With dead ends: 5360 [2018-09-19 03:29:31,047 INFO L226 Difference]: Without dead ends: 3325 [2018-09-19 03:29:31,053 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 214 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:29:31,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2018-09-19 03:29:31,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 3019. [2018-09-19 03:29:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3019 states. [2018-09-19 03:29:31,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 3715 transitions. [2018-09-19 03:29:31,182 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 3715 transitions. Word has length 202 [2018-09-19 03:29:31,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:29:31,183 INFO L480 AbstractCegarLoop]: Abstraction has 3019 states and 3715 transitions. [2018-09-19 03:29:31,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:29:31,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 3715 transitions. [2018-09-19 03:29:31,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-09-19 03:29:31,188 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:29:31,188 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:29:31,188 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:29:31,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1848492480, now seen corresponding path program 1 times [2018-09-19 03:29:31,189 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:29:31,189 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-09-19 03:29:31,189 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:29:31,193 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:29:31,193 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:32,509 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:29:41,819 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:29:41,820 INFO L272 AbstractInterpreter]: Visited 121 different actions 471 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:29:41,829 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:29:43,000 INFO L232 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 73.12% of their original sizes. [2018-09-19 03:29:43,001 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:43,547 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:29:43,548 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:29:43,548 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:29:43,548 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:29:43,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:29:43,549 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:29:43,549 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:29:43,550 INFO L87 Difference]: Start difference. First operand 3019 states and 3715 transitions. Second operand 13 states. [2018-09-19 03:29:54,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:29:54,571 INFO L93 Difference]: Finished difference Result 6300 states and 8063 transitions. [2018-09-19 03:29:54,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:29:54,572 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 218 [2018-09-19 03:29:54,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:29:54,586 INFO L225 Difference]: With dead ends: 6300 [2018-09-19 03:29:54,587 INFO L226 Difference]: Without dead ends: 3435 [2018-09-19 03:29:54,596 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 230 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:29:54,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2018-09-19 03:29:54,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3305. [2018-09-19 03:29:54,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3305 states. [2018-09-19 03:29:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4062 transitions. [2018-09-19 03:29:54,712 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4062 transitions. Word has length 218 [2018-09-19 03:29:54,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:29:54,713 INFO L480 AbstractCegarLoop]: Abstraction has 3305 states and 4062 transitions. [2018-09-19 03:29:54,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:29:54,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4062 transitions. [2018-09-19 03:29:54,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-09-19 03:29:54,721 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:29:54,721 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:29:54,721 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:29:54,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1975821299, now seen corresponding path program 1 times [2018-09-19 03:29:54,722 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:29:54,722 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 224 with the following transitions: [2018-09-19 03:29:54,723 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:29:54,726 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:29:54,726 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:57,234 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:30:08,530 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:30:08,530 INFO L272 AbstractInterpreter]: Visited 124 different actions 603 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:30:08,537 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:30:09,701 INFO L232 lantSequenceWeakener]: Weakened 221 states. On average, predicates are now at 73.11% of their original sizes. [2018-09-19 03:30:09,701 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:30:09,995 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:30:09,996 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:30:09,996 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:30:09,996 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:30:09,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:30:09,997 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:30:09,997 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:30:09,997 INFO L87 Difference]: Start difference. First operand 3305 states and 4062 transitions. Second operand 10 states. [2018-09-19 03:30:17,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:30:17,539 INFO L93 Difference]: Finished difference Result 6634 states and 8307 transitions. [2018-09-19 03:30:17,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:30:17,541 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 223 [2018-09-19 03:30:17,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:30:17,553 INFO L225 Difference]: With dead ends: 6634 [2018-09-19 03:30:17,553 INFO L226 Difference]: Without dead ends: 3483 [2018-09-19 03:30:17,560 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 230 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 03:30:17,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2018-09-19 03:30:17,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3457. [2018-09-19 03:30:17,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3457 states. [2018-09-19 03:30:17,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 4260 transitions. [2018-09-19 03:30:17,671 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 4260 transitions. Word has length 223 [2018-09-19 03:30:17,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:30:17,672 INFO L480 AbstractCegarLoop]: Abstraction has 3457 states and 4260 transitions. [2018-09-19 03:30:17,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:30:17,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 4260 transitions. [2018-09-19 03:30:17,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-09-19 03:30:17,677 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:30:17,677 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:30:17,677 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:30:17,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1109562720, now seen corresponding path program 1 times [2018-09-19 03:30:17,678 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:30:17,678 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-09-19 03:30:17,678 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:30:17,681 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:30:17,682 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:30:21,615 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:30:33,669 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:30:33,669 INFO L272 AbstractInterpreter]: Visited 118 different actions 687 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:30:33,676 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:30:35,390 INFO L232 lantSequenceWeakener]: Weakened 222 states. On average, predicates are now at 73.11% of their original sizes. [2018-09-19 03:30:35,391 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:30:36,164 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:30:36,165 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:30:36,165 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:30:36,166 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:30:36,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:30:36,167 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:30:36,167 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:30:36,167 INFO L87 Difference]: Start difference. First operand 3457 states and 4260 transitions. Second operand 13 states. [2018-09-19 03:30:43,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:30:43,596 INFO L93 Difference]: Finished difference Result 8601 states and 11011 transitions. [2018-09-19 03:30:43,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:30:43,603 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 224 [2018-09-19 03:30:43,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:30:43,623 INFO L225 Difference]: With dead ends: 8601 [2018-09-19 03:30:43,624 INFO L226 Difference]: Without dead ends: 5298 [2018-09-19 03:30:43,632 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 236 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:30:43,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2018-09-19 03:30:43,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 4845. [2018-09-19 03:30:43,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4845 states. [2018-09-19 03:30:43,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4845 states to 4845 states and 6065 transitions. [2018-09-19 03:30:43,780 INFO L78 Accepts]: Start accepts. Automaton has 4845 states and 6065 transitions. Word has length 224 [2018-09-19 03:30:43,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:30:43,781 INFO L480 AbstractCegarLoop]: Abstraction has 4845 states and 6065 transitions. [2018-09-19 03:30:43,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:30:43,781 INFO L276 IsEmpty]: Start isEmpty. Operand 4845 states and 6065 transitions. [2018-09-19 03:30:43,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-09-19 03:30:43,788 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:30:43,788 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:30:43,789 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:30:43,789 INFO L82 PathProgramCache]: Analyzing trace with hash -310493488, now seen corresponding path program 1 times [2018-09-19 03:30:43,789 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:30:43,790 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 233 with the following transitions: [2018-09-19 03:30:43,790 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:30:43,793 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:30:43,793 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:30:46,504 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:31:01,642 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:31:01,643 INFO L272 AbstractInterpreter]: Visited 124 different actions 723 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:31:01,650 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:31:02,942 INFO L232 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 73.1% of their original sizes. [2018-09-19 03:31:02,942 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:31:03,291 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:31:03,291 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:31:03,291 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 03:31:03,291 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:31:03,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 03:31:03,292 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 03:31:03,292 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 03:31:03,293 INFO L87 Difference]: Start difference. First operand 4845 states and 6065 transitions. Second operand 11 states. [2018-09-19 03:31:09,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:31:09,600 INFO L93 Difference]: Finished difference Result 9755 states and 12399 transitions. [2018-09-19 03:31:09,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:31:09,605 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 232 [2018-09-19 03:31:09,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:31:09,628 INFO L225 Difference]: With dead ends: 9755 [2018-09-19 03:31:09,628 INFO L226 Difference]: Without dead ends: 5064 [2018-09-19 03:31:09,639 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 240 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 03:31:09,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5064 states. [2018-09-19 03:31:09,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5064 to 5004. [2018-09-19 03:31:09,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5004 states. [2018-09-19 03:31:09,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5004 states to 5004 states and 6279 transitions. [2018-09-19 03:31:09,813 INFO L78 Accepts]: Start accepts. Automaton has 5004 states and 6279 transitions. Word has length 232 [2018-09-19 03:31:09,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:31:09,814 INFO L480 AbstractCegarLoop]: Abstraction has 5004 states and 6279 transitions. [2018-09-19 03:31:09,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 03:31:09,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5004 states and 6279 transitions. [2018-09-19 03:31:09,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-09-19 03:31:09,824 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:31:09,824 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:31:09,825 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:31:09,825 INFO L82 PathProgramCache]: Analyzing trace with hash -477753193, now seen corresponding path program 1 times [2018-09-19 03:31:09,825 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:31:09,825 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-09-19 03:31:09,827 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], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [626], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:31:09,831 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:31:09,832 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:31:12,592 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:31:27,692 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:31:27,692 INFO L272 AbstractInterpreter]: Visited 124 different actions 723 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:31:27,700 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:31:29,490 INFO L232 lantSequenceWeakener]: Weakened 251 states. On average, predicates are now at 73.07% of their original sizes. [2018-09-19 03:31:29,490 INFO L412 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-09-19 03:31:29,864 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 03:31:29,868 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 03:31:29,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:31:29 BoogieIcfgContainer [2018-09-19 03:31:29,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 03:31:29,870 INFO L168 Benchmark]: Toolchain (without parser) took 254595.86 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 3.3 GB in the end (delta: -2.0 GB). Peak memory consumption was 645.8 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:29,872 INFO L168 Benchmark]: CDTParser took 0.28 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 03:31:29,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.56 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:29,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 171.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 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 03:31:29,874 INFO L168 Benchmark]: Boogie Preprocessor took 331.11 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 722.5 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -812.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:29,875 INFO L168 Benchmark]: RCFGBuilder took 3255.07 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 99.4 MB). Peak memory consumption was 99.4 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:29,876 INFO L168 Benchmark]: TraceAbstraction took 250060.01 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 583.6 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:29,881 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 770.56 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 171.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 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 331.11 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 722.5 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -812.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3255.07 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 99.4 MB). Peak memory consumption was 99.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 250060.01 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 583.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 85). Cancelled while BasicCegarLoop was analyzing trace of length 254 with TraceHistMax 3, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 249.9s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 90.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2362 SDtfs, 12374 SDslu, 4288 SDs, 0 SdLazy, 24597 SolverSat, 2713 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 77.6s Time, PredicateUnifierStatistics: 24 DeclaredPredicates, 2150 GetRequests, 1920 SyntacticMatches, 0 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 10.3s 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, 136.5s AbstIntTime, 13 AbstIntIterations, 13 AbstIntStrong, 0.993955199601282 AbsIntWeakeningRatio, 0.13222416812609458 AbsIntAvgWeakeningVarsNumRemoved, 888.6803852889667 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_label21_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_03-31-29-899.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label21_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_03-31-29-899.csv Completed graceful shutdown