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/Problem14_label33_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 22:53:23,571 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 22:53:23,574 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 22:53:23,593 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 22:53:23,593 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 22:53:23,595 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 22:53:23,596 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 22:53:23,598 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 22:53:23,599 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 22:53:23,600 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 22:53:23,601 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 22:53:23,601 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 22:53:23,602 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 22:53:23,603 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 22:53:23,605 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 22:53:23,605 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 22:53:23,606 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 22:53:23,608 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 22:53:23,610 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 22:53:23,612 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 22:53:23,613 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 22:53:23,614 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 22:53:23,617 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 22:53:23,617 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 22:53:23,617 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 22:53:23,618 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 22:53:23,619 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 22:53:23,620 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 22:53:23,621 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 22:53:23,622 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 22:53:23,623 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 22:53:23,624 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 22:53:23,624 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 22:53:23,624 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 22:53:23,625 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 22:53:23,626 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 22:53:23,626 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 22:53:23,643 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 22:53:23,643 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 22:53:23,644 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 22:53:23,644 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 22:53:23,644 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 22:53:23,645 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 22:53:23,645 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 22:53:23,645 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 22:53:23,646 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 22:53:23,646 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 22:53:23,646 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 22:53:23,647 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 22:53:23,647 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 22:53:23,647 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 22:53:23,648 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 22:53:23,648 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 22:53:23,648 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 22:53:23,648 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 22:53:23,650 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 22:53:23,650 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 22:53:23,650 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 22:53:23,651 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 22:53:23,651 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 22:53:23,651 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 22:53:23,651 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 22:53:23,651 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 22:53:23,652 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 22:53:23,652 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 22:53:23,652 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 22:53:23,652 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 22:53:23,653 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 22:53:23,653 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 22:53:23,653 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 22:53:23,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 22:53:23,746 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 22:53:23,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 22:53:23,754 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 22:53:23,755 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 22:53:23,755 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label33_true-unreach-call_false-termination.c [2018-09-15 22:53:24,115 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06fa5d1f4/1de8a2a8279b47f1b1677bc813be67c3/FLAGa0f75dbef [2018-09-15 22:53:24,429 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 22:53:24,431 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label33_true-unreach-call_false-termination.c [2018-09-15 22:53:24,450 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06fa5d1f4/1de8a2a8279b47f1b1677bc813be67c3/FLAGa0f75dbef [2018-09-15 22:53:24,473 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06fa5d1f4/1de8a2a8279b47f1b1677bc813be67c3 [2018-09-15 22:53:24,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 22:53:24,493 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 22:53:24,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 22:53:24,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 22:53:24,507 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 22:53:24,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:53:24" (1/1) ... [2018-09-15 22:53:24,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf5491e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:24, skipping insertion in model container [2018-09-15 22:53:24,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:53:24" (1/1) ... [2018-09-15 22:53:24,525 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 22:53:25,079 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 22:53:25,102 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 22:53:25,289 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 22:53:25,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:25 WrapperNode [2018-09-15 22:53:25,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 22:53:25,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 22:53:25,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 22:53:25,354 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 22:53:25,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:25" (1/1) ... [2018-09-15 22:53:25,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:25" (1/1) ... [2018-09-15 22:53:25,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 22:53:25,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 22:53:25,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 22:53:25,488 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 22:53:25,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:25" (1/1) ... [2018-09-15 22:53:25,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:25" (1/1) ... [2018-09-15 22:53:25,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:25" (1/1) ... [2018-09-15 22:53:25,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:25" (1/1) ... [2018-09-15 22:53:25,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:25" (1/1) ... [2018-09-15 22:53:25,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:25" (1/1) ... [2018-09-15 22:53:25,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:25" (1/1) ... [2018-09-15 22:53:25,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 22:53:25,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 22:53:25,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 22:53:25,765 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 22:53:25,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:25" (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 22:53:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 22:53:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 22:53:25,842 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 22:53:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 22:53:25,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 22:53:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 22:53:25,843 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 22:53:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 22:53:29,853 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 22:53:29,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:53:29 BoogieIcfgContainer [2018-09-15 22:53:29,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 22:53:29,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 22:53:29,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 22:53:29,864 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 22:53:29,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 10:53:24" (1/3) ... [2018-09-15 22:53:29,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16080873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:53:29, skipping insertion in model container [2018-09-15 22:53:29,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:53:25" (2/3) ... [2018-09-15 22:53:29,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16080873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:53:29, skipping insertion in model container [2018-09-15 22:53:29,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:53:29" (3/3) ... [2018-09-15 22:53:29,868 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label33_true-unreach-call_false-termination.c [2018-09-15 22:53:29,879 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 22:53:29,890 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 22:53:29,949 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 22:53:29,950 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 22:53:29,951 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 22:53:29,951 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 22:53:29,951 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 22:53:29,951 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 22:53:29,951 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 22:53:29,952 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 22:53:29,952 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 22:53:29,998 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-15 22:53:30,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-09-15 22:53:30,008 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:53:30,009 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] [2018-09-15 22:53:30,011 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:53:30,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1913036537, now seen corresponding path program 1 times [2018-09-15 22:53:30,017 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:53:30,018 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 66 with the following transitions: [2018-09-15 22:53:30,020 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [952], [956], [962], [966], [973], [974], [975], [977] [2018-09-15 22:53:30,063 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:53:30,063 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:53:31,725 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:53:31,728 INFO L272 AbstractInterpreter]: Visited 64 different actions 64 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 22:53:31,786 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:53:32,874 INFO L232 lantSequenceWeakener]: Weakened 62 states. On average, predicates are now at 80.47% of their original sizes. [2018-09-15 22:53:32,875 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:53:33,125 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:53:33,127 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:53:33,127 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 22:53:33,127 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:53:33,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 22:53:33,141 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 22:53:33,142 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 22:53:33,144 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-09-15 22:53:35,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:53:35,845 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-09-15 22:53:35,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 22:53:35,847 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2018-09-15 22:53:35,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:53:35,867 INFO L225 Difference]: With dead ends: 693 [2018-09-15 22:53:35,868 INFO L226 Difference]: Without dead ends: 436 [2018-09-15 22:53:35,876 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 64 GetRequests, 60 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 22:53:35,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-09-15 22:53:35,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-09-15 22:53:35,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-15 22:53:35,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-09-15 22:53:35,955 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 65 [2018-09-15 22:53:35,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:53:35,956 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-09-15 22:53:35,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 22:53:35,956 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-09-15 22:53:35,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-09-15 22:53:35,965 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:53:35,965 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:53:35,966 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:53:35,966 INFO L82 PathProgramCache]: Analyzing trace with hash 389741643, now seen corresponding path program 1 times [2018-09-15 22:53:35,966 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:53:35,967 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-09-15 22:53:35,967 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 22:53:35,973 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:53:35,974 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:53:43,451 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:53:43,452 INFO L272 AbstractInterpreter]: Visited 92 different actions 177 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 22:53:43,469 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:53:48,035 INFO L232 lantSequenceWeakener]: Weakened 147 states. On average, predicates are now at 78.71% of their original sizes. [2018-09-15 22:53:48,035 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:53:48,307 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:53:48,307 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:53:48,307 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 22:53:48,308 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:53:48,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 22:53:48,309 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 22:53:48,309 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 22:53:48,310 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 11 states. [2018-09-15 22:53:52,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:53:52,948 INFO L93 Difference]: Finished difference Result 1051 states and 1763 transitions. [2018-09-15 22:53:52,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 22:53:52,948 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 150 [2018-09-15 22:53:52,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:53:52,956 INFO L225 Difference]: With dead ends: 1051 [2018-09-15 22:53:52,957 INFO L226 Difference]: Without dead ends: 806 [2018-09-15 22:53:52,960 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 156 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 22:53:52,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-09-15 22:53:53,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 803. [2018-09-15 22:53:53,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-09-15 22:53:53,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1002 transitions. [2018-09-15 22:53:53,014 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1002 transitions. Word has length 150 [2018-09-15 22:53:53,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:53:53,015 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 1002 transitions. [2018-09-15 22:53:53,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 22:53:53,015 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1002 transitions. [2018-09-15 22:53:53,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-09-15 22:53:53,022 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:53:53,023 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:53:53,023 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:53:53,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1409668127, now seen corresponding path program 1 times [2018-09-15 22:53:53,024 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:53:53,024 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-09-15 22:53:53,025 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 22:53:53,030 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:53:53,031 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:54:20,095 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:54:20,095 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 22:54:20,097 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:54:40,027 INFO L232 lantSequenceWeakener]: Weakened 173 states. On average, predicates are now at 78.49% of their original sizes. [2018-09-15 22:54:40,028 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:54:40,160 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:54:40,160 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:54:40,161 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 22:54:40,161 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:54:40,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 22:54:40,162 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 22:54:40,162 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 22:54:40,162 INFO L87 Difference]: Start difference. First operand 803 states and 1002 transitions. Second operand 11 states. [2018-09-15 22:54:43,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:54:43,017 INFO L93 Difference]: Finished difference Result 1236 states and 1786 transitions. [2018-09-15 22:54:43,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 22:54:43,018 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 176 [2018-09-15 22:54:43,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:54:43,025 INFO L225 Difference]: With dead ends: 1236 [2018-09-15 22:54:43,025 INFO L226 Difference]: Without dead ends: 991 [2018-09-15 22:54:43,028 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 183 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 22:54:43,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2018-09-15 22:54:43,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 988. [2018-09-15 22:54:43,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2018-09-15 22:54:43,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1200 transitions. [2018-09-15 22:54:43,072 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1200 transitions. Word has length 176 [2018-09-15 22:54:43,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:54:43,073 INFO L480 AbstractCegarLoop]: Abstraction has 988 states and 1200 transitions. [2018-09-15 22:54:43,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 22:54:43,073 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1200 transitions. [2018-09-15 22:54:43,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-09-15 22:54:43,081 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:54:43,081 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:43,082 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:54:43,082 INFO L82 PathProgramCache]: Analyzing trace with hash 2070757517, now seen corresponding path program 1 times [2018-09-15 22:54:43,082 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:54:43,083 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 262 with the following transitions: [2018-09-15 22:54:43,083 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 22:54:43,088 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:54:43,088 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:56:15,632 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:56:15,633 INFO L272 AbstractInterpreter]: Visited 119 different actions 466 times. Merged at 7 different actions 23 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 22:56:15,678 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown