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_label16_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 03:24:57,336 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 03:24:57,340 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 03:24:57,360 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 03:24:57,361 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 03:24:57,362 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 03:24:57,364 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 03:24:57,366 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 03:24:57,370 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 03:24:57,371 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 03:24:57,374 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 03:24:57,374 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 03:24:57,376 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 03:24:57,377 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 03:24:57,379 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 03:24:57,379 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 03:24:57,389 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 03:24:57,393 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 03:24:57,396 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 03:24:57,399 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 03:24:57,401 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 03:24:57,402 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 03:24:57,409 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 03:24:57,409 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 03:24:57,409 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 03:24:57,410 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 03:24:57,413 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 03:24:57,414 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 03:24:57,417 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 03:24:57,418 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 03:24:57,419 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 03:24:57,419 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 03:24:57,424 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 03:24:57,454 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 03:24:57,455 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 03:24:57,459 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 03:24:57,459 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 03:24:57,459 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 03:24:57,460 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 03:24:57,460 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 03:24:57,460 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 03:24:57,460 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 03:24:57,461 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 03:24:57,461 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 03:24:57,461 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 03:24:57,462 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 03:24:57,462 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 03:24:57,462 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 03:24:57,463 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 03:24:57,463 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 03:24:57,463 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 03:24:57,463 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 03:24:57,465 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 03:24:57,466 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 03:24:57,466 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 03:24:57,466 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 03:24:57,466 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 03:24:57,466 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:24:57,466 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 03:24:57,467 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 03:24:57,467 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 03:24:57,467 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 03:24:57,467 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 03:24:57,467 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 03:24:57,468 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 03:24:57,468 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 03:24:57,468 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 03:24:57,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 03:24:57,550 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 03:24:57,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 03:24:57,555 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 03:24:57,556 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 03:24:57,556 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label16_true-unreach-call.c [2018-09-19 03:24:57,891 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c46c42669/b8277af3a8da41de801de4a2b02e3773/FLAGe26480a81 [2018-09-19 03:24:58,215 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 03:24:58,216 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label16_true-unreach-call.c [2018-09-19 03:24:58,229 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c46c42669/b8277af3a8da41de801de4a2b02e3773/FLAGe26480a81 [2018-09-19 03:24:58,246 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c46c42669/b8277af3a8da41de801de4a2b02e3773 [2018-09-19 03:24:58,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 03:24:58,260 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 03:24:58,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 03:24:58,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 03:24:58,268 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 03:24:58,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:24:58" (1/1) ... [2018-09-19 03:24:58,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6588efe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58, skipping insertion in model container [2018-09-19 03:24:58,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:24:58" (1/1) ... [2018-09-19 03:24:58,284 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 03:24:58,753 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:24:58,771 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 03:24:58,912 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:24:58,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58 WrapperNode [2018-09-19 03:24:58,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 03:24:58,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 03:24:58,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 03:24:58,960 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 03:24:58,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58" (1/1) ... [2018-09-19 03:24:58,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58" (1/1) ... [2018-09-19 03:24:59,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 03:24:59,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 03:24:59,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 03:24:59,046 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 03:24:59,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58" (1/1) ... [2018-09-19 03:24:59,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58" (1/1) ... [2018-09-19 03:24:59,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58" (1/1) ... [2018-09-19 03:24:59,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58" (1/1) ... [2018-09-19 03:24:59,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58" (1/1) ... [2018-09-19 03:24:59,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58" (1/1) ... [2018-09-19 03:24:59,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58" (1/1) ... [2018-09-19 03:24:59,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 03:24:59,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 03:24:59,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 03:24:59,298 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 03:24:59,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58" (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 03:24:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 03:24:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 03:24:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 03:24:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 03:24:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 03:24:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 03:24:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 03:24:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 03:25:02,534 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 03:25:02,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:25:02 BoogieIcfgContainer [2018-09-19 03:25:02,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 03:25:02,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 03:25:02,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 03:25:02,539 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 03:25:02,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:24:58" (1/3) ... [2018-09-19 03:25:02,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cb5dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:25:02, skipping insertion in model container [2018-09-19 03:25:02,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:24:58" (2/3) ... [2018-09-19 03:25:02,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cb5dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:25:02, skipping insertion in model container [2018-09-19 03:25:02,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:25:02" (3/3) ... [2018-09-19 03:25:02,543 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label16_true-unreach-call.c [2018-09-19 03:25:02,554 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 03:25:02,562 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 03:25:02,614 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 03:25:02,615 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 03:25:02,615 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 03:25:02,616 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 03:25:02,616 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 03:25:02,616 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 03:25:02,616 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 03:25:02,616 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 03:25:02,616 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 03:25:02,643 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 03:25:02,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-19 03:25:02,652 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:25:02,654 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:25:02,655 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:25:02,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1339291892, now seen corresponding path program 1 times [2018-09-19 03:25:02,663 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:25:02,664 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2018-09-19 03:25:02,667 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 03:25:02,726 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:25:02,726 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:25:03,816 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:25:03,818 INFO L272 AbstractInterpreter]: Visited 39 different actions 39 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 03:25:03,835 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:25:04,536 INFO L232 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 75.21% of their original sizes. [2018-09-19 03:25:04,537 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:25:04,861 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:25:04,862 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:25:04,863 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 03:25:04,863 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:25:04,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 03:25:04,879 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 03:25:04,880 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:25:04,882 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 03:25:09,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:25:09,204 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 03:25:09,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 03:25:09,207 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-09-19 03:25:09,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:25:09,225 INFO L225 Difference]: With dead ends: 576 [2018-09-19 03:25:09,225 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 03:25:09,233 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:25:09,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 03:25:09,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 03:25:09,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 03:25:09,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 03:25:09,309 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 40 [2018-09-19 03:25:09,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:25:09,310 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 03:25:09,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 03:25:09,310 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 03:25:09,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-09-19 03:25:09,316 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:25:09,316 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:25:09,317 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:25:09,317 INFO L82 PathProgramCache]: Analyzing trace with hash 665247067, now seen corresponding path program 1 times [2018-09-19 03:25:09,317 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:25:09,317 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 112 with the following transitions: [2018-09-19 03:25:09,318 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:25:09,324 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:25:09,324 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:25:10,743 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:25:13,952 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:25:13,952 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:25:13,960 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:25:14,805 INFO L232 lantSequenceWeakener]: Weakened 109 states. On average, predicates are now at 73.68% of their original sizes. [2018-09-19 03:25:14,805 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:25:15,363 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:25:15,363 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:25:15,364 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:25:15,364 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:25:15,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:25:15,365 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:25:15,365 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:25:15,366 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 03:25:21,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:25:21,087 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 03:25:21,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 03:25:21,091 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 111 [2018-09-19 03:25:21,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:25:21,096 INFO L225 Difference]: With dead ends: 717 [2018-09-19 03:25:21,096 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 03:25:21,099 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 117 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 03:25:21,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 03:25:21,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 03:25:21,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 03:25:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 659 transitions. [2018-09-19 03:25:21,140 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 659 transitions. Word has length 111 [2018-09-19 03:25:21,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:25:21,141 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 659 transitions. [2018-09-19 03:25:21,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:25:21,141 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 659 transitions. [2018-09-19 03:25:21,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-09-19 03:25:21,146 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:25:21,147 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:25:21,147 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:25:21,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1481968672, now seen corresponding path program 1 times [2018-09-19 03:25:21,148 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:25:21,148 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 121 with the following transitions: [2018-09-19 03:25:21,148 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:25:21,156 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:25:21,157 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:25:25,233 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:25:27,162 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:25:27,162 INFO L272 AbstractInterpreter]: Visited 87 different actions 248 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:25:27,166 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:25:28,089 INFO L232 lantSequenceWeakener]: Weakened 118 states. On average, predicates are now at 73.6% of their original sizes. [2018-09-19 03:25:28,090 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:25:28,993 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:25:28,994 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:25:28,994 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:25:28,994 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:25:28,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:25:28,995 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:25:28,995 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:25:28,995 INFO L87 Difference]: Start difference. First operand 505 states and 659 transitions. Second operand 13 states. [2018-09-19 03:25:40,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:25:40,289 INFO L93 Difference]: Finished difference Result 1333 states and 2076 transitions. [2018-09-19 03:25:40,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 03:25:40,291 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 120 [2018-09-19 03:25:40,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:25:40,298 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 03:25:40,298 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 03:25:40,301 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 03:25:40,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 03:25:40,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 03:25:40,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 03:25:40,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 943 transitions. [2018-09-19 03:25:40,357 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 943 transitions. Word has length 120 [2018-09-19 03:25:40,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:25:40,358 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 943 transitions. [2018-09-19 03:25:40,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:25:40,358 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 943 transitions. [2018-09-19 03:25:40,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-19 03:25:40,365 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:25:40,365 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:25:40,366 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:25:40,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1214501016, now seen corresponding path program 1 times [2018-09-19 03:25:40,366 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:25:40,367 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-09-19 03:25:40,367 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [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 03:25:40,372 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:25:40,372 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:25:44,109 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:25:51,371 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:25:51,372 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 03:25:51,377 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:25:52,307 INFO L232 lantSequenceWeakener]: Weakened 154 states. On average, predicates are now at 73.4% of their original sizes. [2018-09-19 03:25:52,307 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:25:52,725 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:25:52,725 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:25:52,725 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:25:52,726 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:25:52,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:25:52,726 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:25:52,727 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:25:52,727 INFO L87 Difference]: Start difference. First operand 762 states and 943 transitions. Second operand 12 states. [2018-09-19 03:26:02,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:26:02,457 INFO L93 Difference]: Finished difference Result 1677 states and 2200 transitions. [2018-09-19 03:26:02,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:26:02,458 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 156 [2018-09-19 03:26:02,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:26:02,464 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 03:26:02,464 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 03:26:02,467 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 164 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-19 03:26:02,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 03:26:02,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 03:26:02,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 03:26:02,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1277 transitions. [2018-09-19 03:26:02,508 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1277 transitions. Word has length 156 [2018-09-19 03:26:02,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:26:02,508 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1277 transitions. [2018-09-19 03:26:02,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:26:02,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1277 transitions. [2018-09-19 03:26:02,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-09-19 03:26:02,512 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:26:02,512 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:26:02,512 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:26:02,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1240334555, now seen corresponding path program 1 times [2018-09-19 03:26:02,513 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:26:02,513 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 176 with the following transitions: [2018-09-19 03:26:02,514 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:26:02,519 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:26:02,519 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:26:11,770 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:26:11,770 INFO L272 AbstractInterpreter]: Visited 142 different actions 413 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:26:11,777 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:26:12,814 INFO L232 lantSequenceWeakener]: Weakened 173 states. On average, predicates are now at 73.33% of their original sizes. [2018-09-19 03:26:12,814 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:26:13,189 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:26:13,190 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:26:13,190 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:26:13,190 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:26:13,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:26:13,191 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:26:13,191 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:26:13,191 INFO L87 Difference]: Start difference. First operand 1056 states and 1277 transitions. Second operand 12 states. [2018-09-19 03:26:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:26:19,407 INFO L93 Difference]: Finished difference Result 2268 states and 2879 transitions. [2018-09-19 03:26:19,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 03:26:19,408 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2018-09-19 03:26:19,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:26:19,416 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 03:26:19,416 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 03:26:19,419 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 184 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 03:26:19,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 03:26:19,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 03:26:19,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 03:26:19,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1605 transitions. [2018-09-19 03:26:19,475 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1605 transitions. Word has length 175 [2018-09-19 03:26:19,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:26:19,476 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1605 transitions. [2018-09-19 03:26:19,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:26:19,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1605 transitions. [2018-09-19 03:26:19,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-09-19 03:26:19,478 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:26:19,479 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:26:19,479 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:26:19,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1560542519, now seen corresponding path program 1 times [2018-09-19 03:26:19,479 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:26:19,479 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 188 with the following transitions: [2018-09-19 03:26:19,480 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:26:19,483 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:26:19,483 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:26:20,830 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:26:25,620 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:26:25,620 INFO L272 AbstractInterpreter]: Visited 84 different actions 323 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:26:25,624 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:26:26,677 INFO L232 lantSequenceWeakener]: Weakened 185 states. On average, predicates are now at 73.34% of their original sizes. [2018-09-19 03:26:26,678 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:26:27,072 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:26:27,072 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:26:27,072 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:26:27,072 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:26:27,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:26:27,073 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:26:27,073 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:26:27,074 INFO L87 Difference]: Start difference. First operand 1352 states and 1605 transitions. Second operand 10 states. [2018-09-19 03:26:32,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:26:32,563 INFO L93 Difference]: Finished difference Result 2719 states and 3368 transitions. [2018-09-19 03:26:32,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:26:32,565 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 187 [2018-09-19 03:26:32,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:26:32,572 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 03:26:32,573 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 03:26:32,576 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 194 GetRequests, 178 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 03:26:32,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 03:26:32,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 03:26:32,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 03:26:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1772 transitions. [2018-09-19 03:26:32,632 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1772 transitions. Word has length 187 [2018-09-19 03:26:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:26:32,633 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1772 transitions. [2018-09-19 03:26:32,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:26:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1772 transitions. [2018-09-19 03:26:32,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-09-19 03:26:32,637 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:26:32,637 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:26:32,637 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:26:32,637 INFO L82 PathProgramCache]: Analyzing trace with hash 113208024, now seen corresponding path program 1 times [2018-09-19 03:26:32,638 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:26:32,638 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-09-19 03:26:32,638 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [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 03:26:32,641 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:26:32,641 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:26:35,884 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:26:39,842 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:26:39,842 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 03:26:39,849 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:26:40,949 INFO L232 lantSequenceWeakener]: Weakened 196 states. On average, predicates are now at 73.3% of their original sizes. [2018-09-19 03:26:40,949 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:26:41,419 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:26:41,419 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:26:41,419 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:26:41,419 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:26:41,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:26:41,420 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:26:41,420 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:26:41,421 INFO L87 Difference]: Start difference. First operand 1503 states and 1772 transitions. Second operand 13 states. [2018-09-19 03:26:50,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:26:50,632 INFO L93 Difference]: Finished difference Result 3686 states and 4637 transitions. [2018-09-19 03:26:50,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:26:50,636 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 198 [2018-09-19 03:26:50,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:26:50,647 INFO L225 Difference]: With dead ends: 3686 [2018-09-19 03:26:50,647 INFO L226 Difference]: Without dead ends: 2337 [2018-09-19 03:26:50,652 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 210 GetRequests, 186 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 03:26:50,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2018-09-19 03:26:50,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2189. [2018-09-19 03:26:50,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2018-09-19 03:26:50,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2615 transitions. [2018-09-19 03:26:50,732 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2615 transitions. Word has length 198 [2018-09-19 03:26:50,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:26:50,733 INFO L480 AbstractCegarLoop]: Abstraction has 2189 states and 2615 transitions. [2018-09-19 03:26:50,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:26:50,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2615 transitions. [2018-09-19 03:26:50,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-09-19 03:26:50,737 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:26:50,738 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:26:50,738 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:26:50,738 INFO L82 PathProgramCache]: Analyzing trace with hash -2000096604, now seen corresponding path program 1 times [2018-09-19 03:26:50,738 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:26:50,739 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-09-19 03:26:50,739 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [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 03:26:50,742 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:26:50,742 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:26:54,309 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:27:07,663 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:07,663 INFO L272 AbstractInterpreter]: Visited 96 different actions 555 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:27:07,686 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:09,012 INFO L232 lantSequenceWeakener]: Weakened 206 states. On average, predicates are now at 73.27% of their original sizes. [2018-09-19 03:27:09,012 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:09,536 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:09,537 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:09,537 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:27:09,537 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:09,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:27:09,538 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:27:09,538 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:27:09,538 INFO L87 Difference]: Start difference. First operand 2189 states and 2615 transitions. Second operand 13 states. [2018-09-19 03:27:17,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:17,551 INFO L93 Difference]: Finished difference Result 5360 states and 6747 transitions. [2018-09-19 03:27:17,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:27:17,553 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 208 [2018-09-19 03:27:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:17,568 INFO L225 Difference]: With dead ends: 5360 [2018-09-19 03:27:17,569 INFO L226 Difference]: Without dead ends: 3325 [2018-09-19 03:27:17,575 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 220 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:27:17,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2018-09-19 03:27:17,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 3019. [2018-09-19 03:27:17,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3019 states. [2018-09-19 03:27:17,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 3715 transitions. [2018-09-19 03:27:17,680 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 3715 transitions. Word has length 208 [2018-09-19 03:27:17,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:17,681 INFO L480 AbstractCegarLoop]: Abstraction has 3019 states and 3715 transitions. [2018-09-19 03:27:17,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:27:17,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 3715 transitions. [2018-09-19 03:27:17,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-09-19 03:27:17,686 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:17,686 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:27:17,686 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:17,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1844377144, now seen corresponding path program 1 times [2018-09-19 03:27:17,687 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:17,687 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-09-19 03:27:17,687 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:27:17,690 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:17,690 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:18,993 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:27:28,420 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:28,420 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 03:27:28,426 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:29,570 INFO L232 lantSequenceWeakener]: Weakened 222 states. On average, predicates are now at 73.23% of their original sizes. [2018-09-19 03:27:29,570 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:30,060 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:30,060 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:30,061 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:27:30,061 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:30,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:27:30,061 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:27:30,062 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:27:30,062 INFO L87 Difference]: Start difference. First operand 3019 states and 3715 transitions. Second operand 13 states. [2018-09-19 03:27:38,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:38,254 INFO L93 Difference]: Finished difference Result 6300 states and 8063 transitions. [2018-09-19 03:27:38,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:27:38,256 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 224 [2018-09-19 03:27:38,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:38,270 INFO L225 Difference]: With dead ends: 6300 [2018-09-19 03:27:38,270 INFO L226 Difference]: Without dead ends: 3435 [2018-09-19 03:27:38,277 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 236 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:27:38,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2018-09-19 03:27:38,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3305. [2018-09-19 03:27:38,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3305 states. [2018-09-19 03:27:38,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4062 transitions. [2018-09-19 03:27:38,378 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4062 transitions. Word has length 224 [2018-09-19 03:27:38,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:38,379 INFO L480 AbstractCegarLoop]: Abstraction has 3305 states and 4062 transitions. [2018-09-19 03:27:38,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:27:38,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4062 transitions. [2018-09-19 03:27:38,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-09-19 03:27:38,386 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:38,386 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:27:38,386 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:38,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1453191573, now seen corresponding path program 1 times [2018-09-19 03:27:38,387 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:38,387 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-09-19 03:27:38,387 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [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 03:27:38,390 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:38,390 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:41,183 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:27:52,637 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:52,637 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 03:27:52,643 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:53,809 INFO L232 lantSequenceWeakener]: Weakened 227 states. On average, predicates are now at 73.22% of their original sizes. [2018-09-19 03:27:53,809 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:54,117 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:54,117 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:54,118 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:27:54,118 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:54,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:27:54,118 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:27:54,119 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:27:54,119 INFO L87 Difference]: Start difference. First operand 3305 states and 4062 transitions. Second operand 10 states. [2018-09-19 03:28:00,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:00,452 INFO L93 Difference]: Finished difference Result 6634 states and 8307 transitions. [2018-09-19 03:28:00,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:28:00,453 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 229 [2018-09-19 03:28:00,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:00,465 INFO L225 Difference]: With dead ends: 6634 [2018-09-19 03:28:00,466 INFO L226 Difference]: Without dead ends: 3483 [2018-09-19 03:28:00,473 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 236 GetRequests, 220 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 03:28:00,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2018-09-19 03:28:00,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3457. [2018-09-19 03:28:00,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3457 states. [2018-09-19 03:28:00,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 4260 transitions. [2018-09-19 03:28:00,579 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 4260 transitions. Word has length 229 [2018-09-19 03:28:00,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:00,579 INFO L480 AbstractCegarLoop]: Abstraction has 3457 states and 4260 transitions. [2018-09-19 03:28:00,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:28:00,580 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 4260 transitions. [2018-09-19 03:28:00,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-09-19 03:28:00,584 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:00,585 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:28:00,585 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:00,585 INFO L82 PathProgramCache]: Analyzing trace with hash -186806120, now seen corresponding path program 1 times [2018-09-19 03:28:00,585 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:00,586 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 231 with the following transitions: [2018-09-19 03:28:00,586 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:28:00,588 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:00,589 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:04,686 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:16,869 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:16,870 INFO L272 AbstractInterpreter]: Visited 118 different actions 687 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:28:16,877 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:18,485 INFO L232 lantSequenceWeakener]: Weakened 228 states. On average, predicates are now at 73.22% of their original sizes. [2018-09-19 03:28:18,485 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:19,174 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:19,175 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:19,175 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:28:19,175 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:19,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:28:19,176 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:28:19,176 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:28:19,176 INFO L87 Difference]: Start difference. First operand 3457 states and 4260 transitions. Second operand 13 states. [2018-09-19 03:28:26,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:26,722 INFO L93 Difference]: Finished difference Result 8601 states and 11011 transitions. [2018-09-19 03:28:26,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:28:26,722 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 230 [2018-09-19 03:28:26,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:26,741 INFO L225 Difference]: With dead ends: 8601 [2018-09-19 03:28:26,742 INFO L226 Difference]: Without dead ends: 5298 [2018-09-19 03:28:26,750 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 242 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:28:26,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2018-09-19 03:28:26,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 4845. [2018-09-19 03:28:26,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4845 states. [2018-09-19 03:28:26,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4845 states to 4845 states and 6065 transitions. [2018-09-19 03:28:26,883 INFO L78 Accepts]: Start accepts. Automaton has 4845 states and 6065 transitions. Word has length 230 [2018-09-19 03:28:26,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:26,883 INFO L480 AbstractCegarLoop]: Abstraction has 4845 states and 6065 transitions. [2018-09-19 03:28:26,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:28:26,884 INFO L276 IsEmpty]: Start isEmpty. Operand 4845 states and 6065 transitions. [2018-09-19 03:28:26,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-09-19 03:28:26,889 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:26,890 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:28:26,890 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:26,890 INFO L82 PathProgramCache]: Analyzing trace with hash 2048947720, now seen corresponding path program 1 times [2018-09-19 03:28:26,890 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:26,890 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 239 with the following transitions: [2018-09-19 03:28:26,891 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:28:26,894 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:26,894 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:29,462 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:44,326 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:44,327 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 03:28:44,335 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:45,558 INFO L232 lantSequenceWeakener]: Weakened 236 states. On average, predicates are now at 73.2% of their original sizes. [2018-09-19 03:28:45,559 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:45,905 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:45,905 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:45,906 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 03:28:45,906 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:45,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 03:28:45,906 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 03:28:45,907 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 03:28:45,907 INFO L87 Difference]: Start difference. First operand 4845 states and 6065 transitions. Second operand 11 states. [2018-09-19 03:28:53,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:53,292 INFO L93 Difference]: Finished difference Result 9755 states and 12399 transitions. [2018-09-19 03:28:53,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:28:53,293 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 238 [2018-09-19 03:28:53,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:53,309 INFO L225 Difference]: With dead ends: 9755 [2018-09-19 03:28:53,310 INFO L226 Difference]: Without dead ends: 5064 [2018-09-19 03:28:53,319 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 246 GetRequests, 228 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 03:28:53,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5064 states. [2018-09-19 03:28:53,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5064 to 5004. [2018-09-19 03:28:53,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5004 states. [2018-09-19 03:28:53,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5004 states to 5004 states and 6279 transitions. [2018-09-19 03:28:53,457 INFO L78 Accepts]: Start accepts. Automaton has 5004 states and 6279 transitions. Word has length 238 [2018-09-19 03:28:53,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:53,458 INFO L480 AbstractCegarLoop]: Abstraction has 5004 states and 6279 transitions. [2018-09-19 03:28:53,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 03:28:53,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5004 states and 6279 transitions. [2018-09-19 03:28:53,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-09-19 03:28:53,467 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:53,467 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:28:53,468 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:53,468 INFO L82 PathProgramCache]: Analyzing trace with hash -582180849, now seen corresponding path program 1 times [2018-09-19 03:28:53,468 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:53,468 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 260 with the following transitions: [2018-09-19 03:28:53,469 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [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 03:28:53,472 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:53,472 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:56,319 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:29:11,410 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:29:11,411 INFO L272 AbstractInterpreter]: Visited 124 different actions 723 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:29:11,416 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:29:12,767 INFO L232 lantSequenceWeakener]: Weakened 257 states. On average, predicates are now at 73.17% of their original sizes. [2018-09-19 03:29:12,767 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:13,053 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:29:13,054 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:29:13,054 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:29:13,054 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:29:13,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:29:13,055 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:29:13,055 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:29:13,055 INFO L87 Difference]: Start difference. First operand 5004 states and 6279 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 03:29:13,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 03:29:13,832 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 03:29:13,838 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 03:29:13,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:29:13 BoogieIcfgContainer [2018-09-19 03:29:13,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 03:29:13,840 INFO L168 Benchmark]: Toolchain (without parser) took 255582.21 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -936.5 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-19 03:29:13,841 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 03:29:13,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 03:29:13,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.91 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 03:29:13,844 INFO L168 Benchmark]: Boogie Preprocessor took 251.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -840.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2018-09-19 03:29:13,844 INFO L168 Benchmark]: RCFGBuilder took 3236.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 108.8 MB). Peak memory consumption was 108.8 MB. Max. memory is 7.1 GB. [2018-09-19 03:29:13,845 INFO L168 Benchmark]: TraceAbstraction took 251302.86 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.3 GB in the end (delta: -258.0 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-19 03:29:13,851 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 698.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 85.91 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 251.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -840.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3236.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 108.8 MB). Peak memory consumption was 108.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 251302.86 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.3 GB in the end (delta: -258.0 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 103). Cancelled while BasicCegarLoop was constructing difference of abstraction (5004states) and FLOYD_HOARE automaton (currently 7 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 251.2s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 90.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2371 SDtfs, 12349 SDslu, 4592 SDs, 0 SdLazy, 25628 SolverSat, 2795 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 77.8s Time, PredicateUnifierStatistics: 26 DeclaredPredicates, 2484 GetRequests, 2242 SyntacticMatches, 0 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 10.2s 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, 139.0s AbstIntTime, 13 AbstIntIterations, 13 AbstIntStrong, 0.9941548162105541 AbsIntWeakeningRatio, 0.12785774767146485 AbsIntAvgWeakeningVarsNumRemoved, 890.1617273497036 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s 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_label16_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_03-29-13-864.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label16_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_03-29-13-864.csv Completed graceful shutdown