java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 23:06:35,286 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 23:06:35,289 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 23:06:35,303 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 23:06:35,304 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 23:06:35,305 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 23:06:35,307 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 23:06:35,309 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 23:06:35,311 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 23:06:35,313 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 23:06:35,315 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 23:06:35,316 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 23:06:35,317 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 23:06:35,318 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 23:06:35,319 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 23:06:35,320 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 23:06:35,321 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 23:06:35,323 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 23:06:35,325 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 23:06:35,327 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 23:06:35,328 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 23:06:35,329 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 23:06:35,332 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 23:06:35,332 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 23:06:35,333 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 23:06:35,334 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 23:06:35,335 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 23:06:35,336 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 23:06:35,336 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 23:06:35,338 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 23:06:35,338 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 23:06:35,339 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 23:06:35,339 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 23:06:35,339 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 23:06:35,341 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 23:06:35,342 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 23:06:35,342 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 23:06:35,363 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 23:06:35,364 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 23:06:35,369 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 23:06:35,370 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 23:06:35,370 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 23:06:35,370 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 23:06:35,370 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 23:06:35,371 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 23:06:35,371 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 23:06:35,371 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 23:06:35,371 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 23:06:35,372 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 23:06:35,372 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 23:06:35,373 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 23:06:35,373 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 23:06:35,373 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 23:06:35,373 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 23:06:35,373 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 23:06:35,374 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 23:06:35,374 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 23:06:35,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 23:06:35,374 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 23:06:35,374 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 23:06:35,375 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 23:06:35,375 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 23:06:35,375 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 23:06:35,375 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 23:06:35,375 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 23:06:35,376 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 23:06:35,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 23:06:35,376 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 23:06:35,376 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 23:06:35,376 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 23:06:35,427 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 23:06:35,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 23:06:35,451 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 23:06:35,452 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 23:06:35,452 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 23:06:35,453 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label56_true-unreach-call.c [2018-09-15 23:06:35,797 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0aa8aed4/e44a5ff3cd3f43a6a116c3afce61c796/FLAGf58924bf5 [2018-09-15 23:06:36,213 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 23:06:36,214 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label56_true-unreach-call.c [2018-09-15 23:06:36,244 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0aa8aed4/e44a5ff3cd3f43a6a116c3afce61c796/FLAGf58924bf5 [2018-09-15 23:06:36,266 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0aa8aed4/e44a5ff3cd3f43a6a116c3afce61c796 [2018-09-15 23:06:36,280 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 23:06:36,286 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 23:06:36,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 23:06:36,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 23:06:36,297 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 23:06:36,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:06:36" (1/1) ... [2018-09-15 23:06:36,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10421fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:36, skipping insertion in model container [2018-09-15 23:06:36,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:06:36" (1/1) ... [2018-09-15 23:06:36,315 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 23:06:37,174 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 23:06:37,193 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 23:06:37,450 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 23:06:37,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37 WrapperNode [2018-09-15 23:06:37,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 23:06:37,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 23:06:37,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 23:06:37,604 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 23:06:37,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37" (1/1) ... [2018-09-15 23:06:37,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37" (1/1) ... [2018-09-15 23:06:37,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 23:06:37,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 23:06:37,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 23:06:37,859 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 23:06:38,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37" (1/1) ... [2018-09-15 23:06:38,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37" (1/1) ... [2018-09-15 23:06:38,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37" (1/1) ... [2018-09-15 23:06:38,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37" (1/1) ... [2018-09-15 23:06:38,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37" (1/1) ... [2018-09-15 23:06:38,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37" (1/1) ... [2018-09-15 23:06:38,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37" (1/1) ... [2018-09-15 23:06:38,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 23:06:38,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 23:06:38,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 23:06:38,506 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 23:06:38,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 23:06:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 23:06:38,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 23:06:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 23:06:38,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 23:06:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 23:06:38,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 23:06:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 23:06:38,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 23:06:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 23:06:38,584 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 23:06:46,914 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 23:06:46,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:06:46 BoogieIcfgContainer [2018-09-15 23:06:46,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 23:06:46,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 23:06:46,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 23:06:46,920 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 23:06:46,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:06:36" (1/3) ... [2018-09-15 23:06:46,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794d282a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:06:46, skipping insertion in model container [2018-09-15 23:06:46,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:06:37" (2/3) ... [2018-09-15 23:06:46,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794d282a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:06:46, skipping insertion in model container [2018-09-15 23:06:46,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:06:46" (3/3) ... [2018-09-15 23:06:46,924 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label56_true-unreach-call.c [2018-09-15 23:06:46,934 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 23:06:46,942 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 23:06:47,001 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 23:06:47,002 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 23:06:47,002 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 23:06:47,002 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 23:06:47,003 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 23:06:47,003 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 23:06:47,003 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 23:06:47,003 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 23:06:47,003 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 23:06:47,045 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-15 23:06:47,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-15 23:06:47,055 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:06:47,056 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] [2018-09-15 23:06:47,057 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:06:47,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1936473164, now seen corresponding path program 1 times [2018-09-15 23:06:47,063 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:06:47,064 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2018-09-15 23:06:47,066 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-15 23:06:47,105 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:06:47,106 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:06:47,536 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:06:47,538 INFO L272 AbstractInterpreter]: Visited 39 different actions 39 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 23:06:47,598 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:06:47,883 INFO L232 lantSequenceWeakener]: Weakened 37 states. On average, predicates are now at 79.56% of their original sizes. [2018-09-15 23:06:47,883 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:06:48,055 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:06:48,059 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:06:48,060 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 23:06:48,060 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:06:48,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 23:06:48,071 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 23:06:48,071 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 23:06:48,074 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-15 23:06:56,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:06:56,727 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-15 23:06:56,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 23:06:56,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-09-15 23:06:56,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:06:56,751 INFO L225 Difference]: With dead ends: 1184 [2018-09-15 23:06:56,751 INFO L226 Difference]: Without dead ends: 744 [2018-09-15 23:06:56,762 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 23:06:56,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-15 23:06:56,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-15 23:06:56,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-15 23:06:56,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-15 23:06:56,868 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 40 [2018-09-15 23:06:56,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:06:56,868 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-15 23:06:56,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 23:06:56,869 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-15 23:06:56,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-09-15 23:06:56,875 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:06:56,875 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] [2018-09-15 23:06:56,876 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:06:56,876 INFO L82 PathProgramCache]: Analyzing trace with hash 541541557, now seen corresponding path program 1 times [2018-09-15 23:06:56,876 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:06:56,877 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-09-15 23:06:56,877 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 23:06:56,884 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:06:56,884 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:06:59,917 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:07:03,110 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:07:03,111 INFO L272 AbstractInterpreter]: Visited 103 different actions 199 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 23:07:03,151 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:07:05,661 INFO L232 lantSequenceWeakener]: Weakened 133 states. On average, predicates are now at 78% of their original sizes. [2018-09-15 23:07:05,661 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:07:06,241 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:07:06,242 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:07:06,242 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 23:07:06,242 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:07:06,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 23:07:06,244 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 23:07:06,244 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 23:07:06,244 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 11 states. [2018-09-15 23:07:14,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:07:14,561 INFO L93 Difference]: Finished difference Result 1792 states and 3044 transitions. [2018-09-15 23:07:14,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 23:07:14,562 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2018-09-15 23:07:14,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:07:14,572 INFO L225 Difference]: With dead ends: 1792 [2018-09-15 23:07:14,573 INFO L226 Difference]: Without dead ends: 1364 [2018-09-15 23:07:14,577 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 23:07:14,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-15 23:07:14,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1361. [2018-09-15 23:07:14,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1361 states. [2018-09-15 23:07:14,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1709 transitions. [2018-09-15 23:07:14,732 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1709 transitions. Word has length 136 [2018-09-15 23:07:14,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:07:14,733 INFO L480 AbstractCegarLoop]: Abstraction has 1361 states and 1709 transitions. [2018-09-15 23:07:14,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 23:07:14,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1709 transitions. [2018-09-15 23:07:14,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-09-15 23:07:14,746 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:07:14,748 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 23:07:14,748 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:07:14,750 INFO L82 PathProgramCache]: Analyzing trace with hash 823288018, now seen corresponding path program 1 times [2018-09-15 23:07:14,751 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:07:14,751 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-09-15 23:07:14,751 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1115], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 23:07:14,759 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:07:14,759 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:07:34,951 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:07:53,189 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:07:53,189 INFO L272 AbstractInterpreter]: Visited 188 different actions 369 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 23:07:53,214 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:08:13,448 INFO L232 lantSequenceWeakener]: Weakened 218 states. On average, predicates are now at 77.72% of their original sizes. [2018-09-15 23:08:13,448 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:08:13,598 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:08:13,598 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:08:13,598 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 23:08:13,599 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:08:13,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 23:08:13,600 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 23:08:13,600 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 23:08:13,600 INFO L87 Difference]: Start difference. First operand 1361 states and 1709 transitions. Second operand 12 states. [2018-09-15 23:08:26,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:08:26,268 INFO L93 Difference]: Finished difference Result 2411 states and 3681 transitions. [2018-09-15 23:08:26,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 23:08:26,271 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 221 [2018-09-15 23:08:26,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:08:26,286 INFO L225 Difference]: With dead ends: 2411 [2018-09-15 23:08:26,287 INFO L226 Difference]: Without dead ends: 1983 [2018-09-15 23:08:26,290 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 228 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 23:08:26,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2018-09-15 23:08:26,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1980. [2018-09-15 23:08:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1980 states. [2018-09-15 23:08:26,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2346 transitions. [2018-09-15 23:08:26,351 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2346 transitions. Word has length 221 [2018-09-15 23:08:26,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:08:26,352 INFO L480 AbstractCegarLoop]: Abstraction has 1980 states and 2346 transitions. [2018-09-15 23:08:26,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 23:08:26,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2346 transitions. [2018-09-15 23:08:26,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-09-15 23:08:26,368 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:08:26,369 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 23:08:26,369 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:08:26,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1363534472, now seen corresponding path program 1 times [2018-09-15 23:08:26,370 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:08:26,370 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 279 with the following transitions: [2018-09-15 23:08:26,371 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 23:08:26,389 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:08:26,390 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:08:49,731 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:09:12,698 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:09:12,698 INFO L272 AbstractInterpreter]: Visited 245 different actions 483 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 23:09:12,738 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:09:37,280 INFO L232 lantSequenceWeakener]: Weakened 275 states. On average, predicates are now at 77.63% of their original sizes. [2018-09-15 23:09:37,281 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:09:37,397 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:09:37,397 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:09:37,398 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 23:09:37,398 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:09:37,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 23:09:37,399 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 23:09:37,399 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 23:09:37,399 INFO L87 Difference]: Start difference. First operand 1980 states and 2346 transitions. Second operand 12 states. [2018-09-15 23:09:45,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:09:45,003 INFO L93 Difference]: Finished difference Result 3030 states and 4318 transitions. [2018-09-15 23:09:45,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 23:09:45,006 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 278 [2018-09-15 23:09:45,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:09:45,023 INFO L225 Difference]: With dead ends: 3030 [2018-09-15 23:09:45,024 INFO L226 Difference]: Without dead ends: 2602 [2018-09-15 23:09:45,028 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 285 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 23:09:45,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2018-09-15 23:09:45,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2599. [2018-09-15 23:09:45,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2599 states. [2018-09-15 23:09:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 2983 transitions. [2018-09-15 23:09:45,104 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 2983 transitions. Word has length 278 [2018-09-15 23:09:45,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:09:45,105 INFO L480 AbstractCegarLoop]: Abstraction has 2599 states and 2983 transitions. [2018-09-15 23:09:45,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 23:09:45,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 2983 transitions. [2018-09-15 23:09:45,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-09-15 23:09:45,110 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:09:45,111 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 23:09:45,111 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:09:45,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1917368151, now seen corresponding path program 1 times [2018-09-15 23:09:45,112 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:09:45,112 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-09-15 23:09:45,112 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1382], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 23:09:45,118 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:09:45,119 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:10:08,499 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:10:32,239 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:10:32,240 INFO L272 AbstractInterpreter]: Visited 246 different actions 485 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 23:10:32,279 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown