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/Problem12_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 22:29:01,861 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 22:29:01,864 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 22:29:01,879 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 22:29:01,879 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 22:29:01,880 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 22:29:01,882 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 22:29:01,885 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 22:29:01,889 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 22:29:01,895 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 22:29:01,896 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 22:29:01,896 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 22:29:01,897 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 22:29:01,902 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 22:29:01,907 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 22:29:01,908 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 22:29:01,910 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 22:29:01,913 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 22:29:01,916 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 22:29:01,921 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 22:29:01,922 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 22:29:01,925 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 22:29:01,927 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 22:29:01,928 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 22:29:01,928 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 22:29:01,932 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 22:29:01,933 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 22:29:01,933 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 22:29:01,934 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 22:29:01,938 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 22:29:01,938 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 22:29:01,939 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 22:29:01,939 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 22:29:01,939 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 22:29:01,942 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 22:29:01,944 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 22:29:01,944 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 22:29:01,973 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 22:29:01,974 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 22:29:01,976 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 22:29:01,976 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 22:29:01,976 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 22:29:01,976 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 22:29:01,979 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 22:29:01,979 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 22:29:01,979 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 22:29:01,980 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 22:29:01,980 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 22:29:01,981 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 22:29:01,981 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 22:29:01,982 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 22:29:01,982 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 22:29:01,982 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 22:29:01,982 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 22:29:01,982 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 22:29:01,983 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 22:29:01,983 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 22:29:01,983 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 22:29:01,985 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 22:29:01,985 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 22:29:01,986 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 22:29:01,986 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 22:29:01,986 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 22:29:01,986 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 22:29:01,987 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 22:29:01,987 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 22:29:01,987 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 22:29:01,987 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 22:29:01,988 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 22:29:01,988 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 22:29:02,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 22:29:02,077 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 22:29:02,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 22:29:02,084 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 22:29:02,085 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 22:29:02,086 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label05_true-unreach-call.c [2018-09-15 22:29:02,467 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c06ead61/677fa4d9459049f49a6353dcdbdb9bd3/FLAG783b8ae4c [2018-09-15 22:29:02,950 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 22:29:02,951 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label05_true-unreach-call.c [2018-09-15 22:29:02,984 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c06ead61/677fa4d9459049f49a6353dcdbdb9bd3/FLAG783b8ae4c [2018-09-15 22:29:03,008 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c06ead61/677fa4d9459049f49a6353dcdbdb9bd3 [2018-09-15 22:29:03,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 22:29:03,028 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 22:29:03,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 22:29:03,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 22:29:03,040 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 22:29:03,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:29:03" (1/1) ... [2018-09-15 22:29:03,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560f8b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:03, skipping insertion in model container [2018-09-15 22:29:03,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:29:03" (1/1) ... [2018-09-15 22:29:03,058 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 22:29:04,456 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 22:29:04,479 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 22:29:05,184 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 22:29:05,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:05 WrapperNode [2018-09-15 22:29:05,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 22:29:05,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 22:29:05,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 22:29:05,491 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 22:29:05,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:05" (1/1) ... [2018-09-15 22:29:05,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:05" (1/1) ... [2018-09-15 22:29:05,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 22:29:05,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 22:29:05,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 22:29:05,743 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 22:29:06,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:05" (1/1) ... [2018-09-15 22:29:06,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:05" (1/1) ... [2018-09-15 22:29:06,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:05" (1/1) ... [2018-09-15 22:29:06,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:05" (1/1) ... [2018-09-15 22:29:06,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:05" (1/1) ... [2018-09-15 22:29:06,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:05" (1/1) ... [2018-09-15 22:29:06,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:05" (1/1) ... [2018-09-15 22:29:06,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 22:29:06,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 22:29:06,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 22:29:06,719 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 22:29:06,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:05" (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 22:29:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 22:29:06,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 22:29:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-15 22:29:06,800 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-15 22:29:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 22:29:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 22:29:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 22:29:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 22:29:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 22:29:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 22:29:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 22:29:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 22:29:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 22:29:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 22:29:18,544 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 22:29:18,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:29:18 BoogieIcfgContainer [2018-09-15 22:29:18,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 22:29:18,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 22:29:18,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 22:29:18,550 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 22:29:18,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 10:29:03" (1/3) ... [2018-09-15 22:29:18,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d8415e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:29:18, skipping insertion in model container [2018-09-15 22:29:18,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:29:05" (2/3) ... [2018-09-15 22:29:18,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d8415e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:29:18, skipping insertion in model container [2018-09-15 22:29:18,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:29:18" (3/3) ... [2018-09-15 22:29:18,555 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label05_true-unreach-call.c [2018-09-15 22:29:18,567 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 22:29:18,578 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 22:29:18,665 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 22:29:18,666 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 22:29:18,666 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 22:29:18,667 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 22:29:18,667 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 22:29:18,667 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 22:29:18,667 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 22:29:18,667 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 22:29:18,668 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 22:29:18,730 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-15 22:29:18,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-15 22:29:18,741 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:29:18,743 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] [2018-09-15 22:29:18,744 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:29:18,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1226611092, now seen corresponding path program 1 times [2018-09-15 22:29:18,753 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:29:18,754 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 67 with the following transitions: [2018-09-15 22:29:18,758 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2295], [2297], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-15 22:29:18,815 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:29:18,816 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:29:22,624 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:29:22,626 INFO L272 AbstractInterpreter]: Visited 65 different actions 65 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 22:29:22,693 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:29:24,176 INFO L232 lantSequenceWeakener]: Weakened 63 states. On average, predicates are now at 77.72% of their original sizes. [2018-09-15 22:29:24,176 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:29:24,441 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:29:24,442 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:29:24,443 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 22:29:24,443 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:29:24,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 22:29:24,464 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 22:29:24,466 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 22:29:24,471 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-15 22:29:36,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:29:36,100 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-15 22:29:36,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 22:29:36,103 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2018-09-15 22:29:36,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:29:36,139 INFO L225 Difference]: With dead ends: 2448 [2018-09-15 22:29:36,140 INFO L226 Difference]: Without dead ends: 1606 [2018-09-15 22:29:36,150 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 65 GetRequests, 61 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 22:29:36,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-15 22:29:36,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-15 22:29:36,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-15 22:29:36,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-15 22:29:36,308 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 66 [2018-09-15 22:29:36,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:29:36,309 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-15 22:29:36,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 22:29:36,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-15 22:29:36,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-09-15 22:29:36,320 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:29:36,320 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, 1, 1, 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 22:29:36,321 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:29:36,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1332120426, now seen corresponding path program 1 times [2018-09-15 22:29:36,321 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:29:36,322 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 143 with the following transitions: [2018-09-15 22:29:36,322 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2295], [2297], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-15 22:29:36,327 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:29:36,327 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:30:55,961 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:30:55,961 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 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 22:30:56,001 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:31:35,903 INFO L232 lantSequenceWeakener]: Weakened 139 states. On average, predicates are now at 76.32% of their original sizes. [2018-09-15 22:31:35,903 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:31:36,131 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:31:36,132 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:31:36,132 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 22:31:36,132 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:31:36,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 22:31:36,134 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 22:31:36,134 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 22:31:36,135 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 11 states. [2018-09-15 22:31:57,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:31:57,138 INFO L93 Difference]: Finished difference Result 3976 states and 6980 transitions. [2018-09-15 22:31:57,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 22:31:57,139 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 142 [2018-09-15 22:31:57,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:31:57,154 INFO L225 Difference]: With dead ends: 3976 [2018-09-15 22:31:57,154 INFO L226 Difference]: Without dead ends: 3146 [2018-09-15 22:31:57,159 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 132 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 22:31:57,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2018-09-15 22:31:57,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3143. [2018-09-15 22:31:57,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3143 states. [2018-09-15 22:31:57,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 3918 transitions. [2018-09-15 22:31:57,245 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 3918 transitions. Word has length 142 [2018-09-15 22:31:57,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:31:57,246 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 3918 transitions. [2018-09-15 22:31:57,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 22:31:57,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 3918 transitions. [2018-09-15 22:31:57,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-09-15 22:31:57,252 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:31:57,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:31:57,253 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:31:57,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1950012650, now seen corresponding path program 1 times [2018-09-15 22:31:57,253 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:31:57,254 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-09-15 22:31:57,254 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2295], [2297], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-15 22:31:57,260 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:31:57,261 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2)