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/Problem16_label42_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:18:04,417 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:18:04,420 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:18:04,437 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:18:04,438 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:18:04,441 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:18:04,445 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:18:04,452 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:18:04,457 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:18:04,461 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:18:04,465 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:18:04,466 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:18:04,467 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:18:04,467 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:18:04,470 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:18:04,471 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:18:04,472 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:18:04,474 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:18:04,476 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:18:04,477 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:18:04,478 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:18:04,480 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:18:04,482 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 15:18:04,482 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 15:18:04,483 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 15:18:04,483 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 15:18:04,484 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 15:18:04,485 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 15:18:04,486 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 15:18:04,487 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 15:18:04,487 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 15:18:04,487 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 15:18:04,488 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:18:04,488 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:18:04,489 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:18:04,490 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:18:04,490 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 15:18:04,505 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:18:04,505 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:18:04,506 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:18:04,506 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:18:04,507 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:18:04,507 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:18:04,507 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 15:18:04,507 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:18:04,507 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:18:04,508 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 15:18:04,508 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:18:04,508 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:18:04,509 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:18:04,509 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:18:04,509 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:18:04,509 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:18:04,510 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:18:04,510 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:18:04,510 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:18:04,510 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:18:04,511 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:18:04,511 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:18:04,511 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:18:04,511 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:18:04,511 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:18:04,512 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:18:04,512 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:18:04,512 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:18:04,512 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:18:04,514 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:18:04,514 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:18:04,514 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:18:04,514 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:18:04,515 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:18:04,593 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:18:04,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:18:04,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:18:04,613 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:18:04,613 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:18:04,614 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label42_true-unreach-call.c [2018-09-15 15:18:05,027 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44f8886f4/583135952e944a8bbcfb5dd95a625536/FLAGc1c249e30 [2018-09-15 15:18:05,426 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:18:05,427 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label42_true-unreach-call.c [2018-09-15 15:18:05,457 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44f8886f4/583135952e944a8bbcfb5dd95a625536/FLAGc1c249e30 [2018-09-15 15:18:05,500 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44f8886f4/583135952e944a8bbcfb5dd95a625536 [2018-09-15 15:18:05,512 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:18:05,515 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:18:05,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:18:05,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:18:05,528 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:18:05,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:18:05" (1/1) ... [2018-09-15 15:18:05,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304117ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:05, skipping insertion in model container [2018-09-15 15:18:05,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:18:05" (1/1) ... [2018-09-15 15:18:05,557 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:18:06,450 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:18:06,469 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:18:06,729 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:18:06,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:06 WrapperNode [2018-09-15 15:18:06,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:18:06,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:18:06,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:18:06,844 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:18:06,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:06" (1/1) ... [2018-09-15 15:18:06,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:06" (1/1) ... [2018-09-15 15:18:07,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:18:07,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:18:07,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:18:07,067 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:18:07,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:06" (1/1) ... [2018-09-15 15:18:07,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:06" (1/1) ... [2018-09-15 15:18:07,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:06" (1/1) ... [2018-09-15 15:18:07,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:06" (1/1) ... [2018-09-15 15:18:07,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:06" (1/1) ... [2018-09-15 15:18:07,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:06" (1/1) ... [2018-09-15 15:18:07,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:06" (1/1) ... [2018-09-15 15:18:07,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:18:07,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:18:07,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:18:07,562 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:18:07,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:06" (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 15:18:07,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:18:07,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:18:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 15:18:07,667 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 15:18:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 15:18:07,668 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 15:18:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:18:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:18:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:18:07,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:18:14,533 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:18:14,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:18:14 BoogieIcfgContainer [2018-09-15 15:18:14,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:18:14,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:18:14,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:18:14,540 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:18:14,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:18:05" (1/3) ... [2018-09-15 15:18:14,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f22331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:18:14, skipping insertion in model container [2018-09-15 15:18:14,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:18:06" (2/3) ... [2018-09-15 15:18:14,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f22331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:18:14, skipping insertion in model container [2018-09-15 15:18:14,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:18:14" (3/3) ... [2018-09-15 15:18:14,544 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label42_true-unreach-call.c [2018-09-15 15:18:14,554 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:18:14,563 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:18:14,626 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:18:14,627 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:18:14,627 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:18:14,627 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:18:14,628 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:18:14,628 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:18:14,628 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:18:14,628 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:18:14,628 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:18:14,661 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-15 15:18:14,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-09-15 15:18:14,673 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:18:14,674 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:18:14,675 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:18:14,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1180093893, now seen corresponding path program 1 times [2018-09-15 15:18:14,684 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:18:14,685 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 70 with the following transitions: [2018-09-15 15:18:14,688 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-15 15:18:14,736 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:18:14,736 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:18:16,074 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:18:16,076 INFO L272 AbstractInterpreter]: Visited 68 different actions 68 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 15:18:16,127 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:18:17,121 INFO L232 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 80.55% of their original sizes. [2018-09-15 15:18:17,122 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:18:17,382 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:18:17,386 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:18:17,386 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 15:18:17,387 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:18:17,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 15:18:17,403 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 15:18:17,404 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:18:17,406 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-15 15:18:24,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:18:24,825 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-15 15:18:24,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 15:18:24,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2018-09-15 15:18:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:18:24,851 INFO L225 Difference]: With dead ends: 1158 [2018-09-15 15:18:24,852 INFO L226 Difference]: Without dead ends: 746 [2018-09-15 15:18:24,859 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 68 GetRequests, 64 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 15:18:24,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-15 15:18:24,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-15 15:18:24,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-15 15:18:24,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-15 15:18:24,952 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 69 [2018-09-15 15:18:24,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:18:24,953 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-15 15:18:24,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 15:18:24,953 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-15 15:18:24,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-09-15 15:18:24,962 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:18:24,962 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, 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] [2018-09-15 15:18:24,963 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:18:24,963 INFO L82 PathProgramCache]: Analyzing trace with hash 774399864, now seen corresponding path program 1 times [2018-09-15 15:18:24,963 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:18:24,964 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 162 with the following transitions: [2018-09-15 15:18:24,964 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 15:18:24,971 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:18:24,971 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:18:29,371 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:18:33,763 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:18:33,763 INFO L272 AbstractInterpreter]: Visited 99 different actions 191 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 15:18:33,772 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:18:39,088 INFO L232 lantSequenceWeakener]: Weakened 158 states. On average, predicates are now at 78.72% of their original sizes. [2018-09-15 15:18:39,088 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:18:39,384 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:18:39,384 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:18:39,384 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 15:18:39,384 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:18:39,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 15:18:39,386 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 15:18:39,386 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 15:18:39,386 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-15 15:18:47,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:18:47,200 INFO L93 Difference]: Finished difference Result 1826 states and 3140 transitions. [2018-09-15 15:18:47,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 15:18:47,202 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 161 [2018-09-15 15:18:47,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:18:47,214 INFO L225 Difference]: With dead ends: 1826 [2018-09-15 15:18:47,214 INFO L226 Difference]: Without dead ends: 1426 [2018-09-15 15:18:47,217 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 167 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 15:18:47,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2018-09-15 15:18:47,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1423. [2018-09-15 15:18:47,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1423 states. [2018-09-15 15:18:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1772 transitions. [2018-09-15 15:18:47,288 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1772 transitions. Word has length 161 [2018-09-15 15:18:47,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:18:47,289 INFO L480 AbstractCegarLoop]: Abstraction has 1423 states and 1772 transitions. [2018-09-15 15:18:47,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 15:18:47,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1772 transitions. [2018-09-15 15:18:47,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-09-15 15:18:47,300 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:18:47,301 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, 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] [2018-09-15 15:18:47,301 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:18:47,302 INFO L82 PathProgramCache]: Analyzing trace with hash 474501632, now seen corresponding path program 1 times [2018-09-15 15:18:47,302 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:18:47,302 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-09-15 15:18:47,303 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 15:18:47,311 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:18:47,312 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:19:52,376 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:20:45,644 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:20:45,644 INFO L272 AbstractInterpreter]: Visited 135 different actions 263 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 15:20:45,665 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:21:39,502 INFO L232 lantSequenceWeakener]: Weakened 194 states. On average, predicates are now at 78.45% of their original sizes. [2018-09-15 15:21:39,503 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:21:39,677 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:21:39,678 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:21:39,678 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 15:21:39,678 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:21:39,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 15:21:39,680 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 15:21:39,681 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 15:21:39,681 INFO L87 Difference]: Start difference. First operand 1423 states and 1772 transitions. Second operand 11 states. [2018-09-15 15:21:47,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:21:47,787 INFO L93 Difference]: Finished difference Result 2505 states and 3837 transitions. [2018-09-15 15:21:47,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 15:21:47,793 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 197 [2018-09-15 15:21:47,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:21:47,802 INFO L225 Difference]: With dead ends: 2505 [2018-09-15 15:21:47,803 INFO L226 Difference]: Without dead ends: 2105 [2018-09-15 15:21:47,805 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 203 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 15:21:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2018-09-15 15:21:47,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2102. [2018-09-15 15:21:47,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2102 states. [2018-09-15 15:21:47,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 2469 transitions. [2018-09-15 15:21:47,857 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 2469 transitions. Word has length 197 [2018-09-15 15:21:47,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:21:47,858 INFO L480 AbstractCegarLoop]: Abstraction has 2102 states and 2469 transitions. [2018-09-15 15:21:47,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 15:21:47,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 2469 transitions. [2018-09-15 15:21:47,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-09-15 15:21:47,864 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:21:47,866 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, 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] [2018-09-15 15:21:47,866 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:21:47,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1912594233, now seen corresponding path program 1 times [2018-09-15 15:21:47,866 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:21:47,867 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 223 with the following transitions: [2018-09-15 15:21:47,867 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1004], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 15:21:47,874 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:21:47,874 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown