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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label06_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:34:13,310 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:34:13,313 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:34:13,325 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:34:13,326 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:34:13,327 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:34:13,328 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:34:13,330 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:34:13,331 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:34:13,332 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:34:13,333 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:34:13,334 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:34:13,335 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:34:13,336 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:34:13,337 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:34:13,340 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:34:13,341 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:34:13,350 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:34:13,352 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:34:13,355 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:34:13,356 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:34:13,360 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:34:13,363 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 15:34:13,363 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 15:34:13,363 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 15:34:13,366 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 15:34:13,367 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 15:34:13,368 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 15:34:13,370 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 15:34:13,371 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 15:34:13,373 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 15:34:13,373 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 15:34:13,373 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:34:13,374 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:34:13,376 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:34:13,377 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:34:13,377 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 15:34:13,408 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:34:13,408 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:34:13,409 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:34:13,409 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:34:13,409 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:34:13,410 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:34:13,410 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 15:34:13,410 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:34:13,410 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:34:13,410 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 15:34:13,411 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:34:13,411 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:34:13,411 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:34:13,412 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:34:13,412 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:34:13,412 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:34:13,412 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:34:13,412 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:34:13,413 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:34:13,413 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:34:13,413 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:34:13,413 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:34:13,413 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:34:13,414 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:34:13,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:34:13,414 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:34:13,414 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:34:13,414 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:34:13,415 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:34:13,415 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:34:13,415 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:34:13,415 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:34:13,415 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:34:13,415 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:34:13,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:34:13,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:34:13,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:34:13,486 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:34:13,486 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:34:13,487 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label06_true-unreach-call.c [2018-09-15 15:34:13,843 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d6eb8c11/2e4c340f4b0247d2bc4c963705088cd7/FLAGaa7ac7e14 [2018-09-15 15:34:14,374 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:34:14,375 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label06_true-unreach-call.c [2018-09-15 15:34:14,416 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d6eb8c11/2e4c340f4b0247d2bc4c963705088cd7/FLAGaa7ac7e14 [2018-09-15 15:34:14,433 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d6eb8c11/2e4c340f4b0247d2bc4c963705088cd7 [2018-09-15 15:34:14,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:34:14,450 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:34:14,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:34:14,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:34:14,459 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:34:14,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:34:14" (1/1) ... [2018-09-15 15:34:14,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d3fed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:14, skipping insertion in model container [2018-09-15 15:34:14,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:34:14" (1/1) ... [2018-09-15 15:34:14,476 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:34:16,374 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:34:16,392 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:34:17,407 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:34:18,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:18 WrapperNode [2018-09-15 15:34:18,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:34:18,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:34:18,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:34:18,027 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:34:18,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:18" (1/1) ... [2018-09-15 15:34:18,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:18" (1/1) ... [2018-09-15 15:34:18,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:34:18,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:34:18,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:34:18,337 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:34:19,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:18" (1/1) ... [2018-09-15 15:34:19,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:18" (1/1) ... [2018-09-15 15:34:19,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:18" (1/1) ... [2018-09-15 15:34:19,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:18" (1/1) ... [2018-09-15 15:34:19,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:18" (1/1) ... [2018-09-15 15:34:19,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:18" (1/1) ... [2018-09-15 15:34:19,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:18" (1/1) ... [2018-09-15 15:34:20,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:34:20,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:34:20,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:34:20,061 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:34:20,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:18" (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 15:34:20,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:34:20,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:34:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-15 15:34:20,134 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-15 15:34:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-15 15:34:20,134 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-15 15:34:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-15 15:34:20,135 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-15 15:34:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 15:34:20,135 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 15:34:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 15:34:20,136 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 15:34:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 15:34:20,136 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 15:34:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:34:20,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:34:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:34:20,137 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:34:37,227 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:34:37,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:34:37 BoogieIcfgContainer [2018-09-15 15:34:37,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:34:37,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:34:37,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:34:37,233 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:34:37,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:34:14" (1/3) ... [2018-09-15 15:34:37,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2867cc9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:34:37, skipping insertion in model container [2018-09-15 15:34:37,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:34:18" (2/3) ... [2018-09-15 15:34:37,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2867cc9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:34:37, skipping insertion in model container [2018-09-15 15:34:37,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:34:37" (3/3) ... [2018-09-15 15:34:37,236 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label06_true-unreach-call.c [2018-09-15 15:34:37,246 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:34:37,257 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:34:37,328 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:34:37,329 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:34:37,329 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:34:37,329 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:34:37,329 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:34:37,329 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:34:37,329 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:34:37,329 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:34:37,329 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:34:37,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-15 15:34:37,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-15 15:34:37,401 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:34:37,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:34:37,404 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:34:37,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1394704370, now seen corresponding path program 1 times [2018-09-15 15:34:37,411 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:34:37,412 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 62 with the following transitions: [2018-09-15 15:34:37,415 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5602], [5610], [5614], [5616], [6806], [6810], [6816], [6820], [6837], [6838], [6839], [6841] [2018-09-15 15:34:37,461 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:34:37,462 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:34:38,355 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:34:38,357 INFO L272 AbstractInterpreter]: Visited 60 different actions 60 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 15:34:38,412 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:34:38,977 INFO L232 lantSequenceWeakener]: Weakened 58 states. On average, predicates are now at 77.6% of their original sizes. [2018-09-15 15:34:38,977 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:34:39,229 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:34:39,230 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:34:39,231 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 15:34:39,231 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:34:39,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 15:34:39,244 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 15:34:39,245 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:34:39,247 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 6 states. [2018-09-15 15:34:59,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:34:59,150 INFO L93 Difference]: Finished difference Result 4946 states and 9354 transitions. [2018-09-15 15:34:59,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 15:34:59,152 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2018-09-15 15:34:59,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:34:59,199 INFO L225 Difference]: With dead ends: 4946 [2018-09-15 15:34:59,199 INFO L226 Difference]: Without dead ends: 3166 [2018-09-15 15:34:59,212 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:34:59,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2018-09-15 15:34:59,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3164. [2018-09-15 15:34:59,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3164 states. [2018-09-15 15:34:59,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 4690 transitions. [2018-09-15 15:34:59,420 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 4690 transitions. Word has length 61 [2018-09-15 15:34:59,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:34:59,422 INFO L480 AbstractCegarLoop]: Abstraction has 3164 states and 4690 transitions. [2018-09-15 15:34:59,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 15:34:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 4690 transitions. [2018-09-15 15:34:59,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-09-15 15:34:59,446 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:34:59,447 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, 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] [2018-09-15 15:34:59,447 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:34:59,447 INFO L82 PathProgramCache]: Analyzing trace with hash -43346350, now seen corresponding path program 1 times [2018-09-15 15:34:59,448 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:34:59,448 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 302 with the following transitions: [2018-09-15 15:34:59,449 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5602], [5610], [5614], [5616], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6421], [6425], [6429], [6440], [6444], [6455], [6459], [6463], [6467], [6471], [6475], [6486], [6490], [6494], [6498], [6502], [6506], [6510], [6514], [6525], [6529], [6533], [6537], [6541], [6545], [6549], [6553], [6557], [6560], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-09-15 15:34:59,466 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:34:59,466 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:38:27,886 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:38:27,887 INFO L272 AbstractInterpreter]: Visited 247 different actions 487 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 15:38:27,897 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown