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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label48_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:28:20,759 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:28:20,761 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:28:20,774 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:28:20,775 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:28:20,776 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:28:20,777 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:28:20,779 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:28:20,781 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:28:20,781 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:28:20,782 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:28:20,783 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:28:20,784 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:28:20,784 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:28:20,786 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:28:20,786 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:28:20,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:28:20,789 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:28:20,791 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:28:20,793 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:28:20,794 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:28:20,795 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:28:20,797 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:28:20,798 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:28:20,798 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:28:20,799 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:28:20,800 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:28:20,801 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:28:20,801 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:28:20,802 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:28:20,803 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:28:20,804 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 04:28:20,804 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 04:28:20,804 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 04:28:20,807 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 04:28:20,808 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 04:28:20,809 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 04:28:20,840 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:28:20,841 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:28:20,842 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:28:20,843 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:28:20,843 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:28:20,843 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:28:20,844 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:28:20,844 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:28:20,844 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:28:20,844 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:28:20,844 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:28:20,845 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:28:20,846 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:28:20,846 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:28:20,846 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:28:20,847 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:28:20,847 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:28:20,847 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:28:20,847 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:28:20,847 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:28:20,848 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:28:20,848 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:28:20,848 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:28:20,848 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:28:20,850 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:28:20,851 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:28:20,851 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:28:20,851 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:28:20,851 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:28:20,851 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:28:20,852 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:28:20,852 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:28:20,852 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:28:20,852 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:28:20,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:28:20,952 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:28:20,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:28:20,960 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:28:20,961 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:28:20,962 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label48_true-unreach-call.c [2018-09-19 04:28:21,361 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a1c52bac/aa9c21fa0f3247988261396e797440b0/FLAGf4d1b97de [2018-09-19 04:28:21,746 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:28:21,747 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label48_true-unreach-call.c [2018-09-19 04:28:21,776 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a1c52bac/aa9c21fa0f3247988261396e797440b0/FLAGf4d1b97de [2018-09-19 04:28:21,803 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a1c52bac/aa9c21fa0f3247988261396e797440b0 [2018-09-19 04:28:21,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:28:21,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:28:21,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:28:21,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:28:21,836 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:28:21,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:28:21" (1/1) ... [2018-09-19 04:28:21,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33990940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:21, skipping insertion in model container [2018-09-19 04:28:21,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:28:21" (1/1) ... [2018-09-19 04:28:21,856 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:28:22,694 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:28:22,715 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:28:22,997 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:28:23,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:23 WrapperNode [2018-09-19 04:28:23,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:28:23,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:28:23,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:28:23,121 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:28:23,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:23" (1/1) ... [2018-09-19 04:28:23,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:23" (1/1) ... [2018-09-19 04:28:23,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:28:23,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:28:23,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:28:23,340 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:28:23,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:23" (1/1) ... [2018-09-19 04:28:23,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:23" (1/1) ... [2018-09-19 04:28:23,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:23" (1/1) ... [2018-09-19 04:28:23,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:23" (1/1) ... [2018-09-19 04:28:23,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:23" (1/1) ... [2018-09-19 04:28:23,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:23" (1/1) ... [2018-09-19 04:28:23,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:23" (1/1) ... [2018-09-19 04:28:23,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:28:23,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:28:23,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:28:23,841 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:28:23,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:23" (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 [2018-09-19 04:28:23,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:28:23,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:28:23,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 04:28:23,920 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 04:28:23,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:28:23,921 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:28:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:28:23,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:28:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:28:23,921 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:28:29,830 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:28:29,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:28:29 BoogieIcfgContainer [2018-09-19 04:28:29,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:28:29,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:28:29,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:28:29,836 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:28:29,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:28:21" (1/3) ... [2018-09-19 04:28:29,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5047a5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:28:29, skipping insertion in model container [2018-09-19 04:28:29,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:28:23" (2/3) ... [2018-09-19 04:28:29,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5047a5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:28:29, skipping insertion in model container [2018-09-19 04:28:29,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:28:29" (3/3) ... [2018-09-19 04:28:29,841 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label48_true-unreach-call.c [2018-09-19 04:28:29,852 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:28:29,863 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:28:29,926 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:28:29,927 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:28:29,927 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:28:29,927 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:28:29,928 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:28:29,928 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:28:29,928 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:28:29,928 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:28:29,928 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:28:29,970 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-19 04:28:29,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-19 04:28:29,982 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:28:29,984 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, 1, 1] [2018-09-19 04:28:29,985 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:28:29,991 INFO L82 PathProgramCache]: Analyzing trace with hash -198715549, now seen corresponding path program 1 times [2018-09-19 04:28:29,994 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:28:29,995 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 72 with the following transitions: [2018-09-19 04:28:29,998 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], [635], [643], [647], [649], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-19 04:28:30,069 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:28:30,069 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:28:31,797 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:28:31,799 INFO L272 AbstractInterpreter]: Visited 70 different actions 70 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 04:28:31,829 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:28:32,891 INFO L232 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 80.87% of their original sizes. [2018-09-19 04:28:32,891 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:28:33,185 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:28:33,186 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:28:33,187 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:28:33,187 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:28:33,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:28:33,201 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:28:33,202 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:28:33,205 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-19 04:28:41,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:28:41,392 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-19 04:28:41,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:28:41,395 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2018-09-19 04:28:41,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:28:41,417 INFO L225 Difference]: With dead ends: 1158 [2018-09-19 04:28:41,417 INFO L226 Difference]: Without dead ends: 746 [2018-09-19 04:28:41,427 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:28:41,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-19 04:28:41,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-19 04:28:41,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-19 04:28:41,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-19 04:28:41,539 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 71 [2018-09-19 04:28:41,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:28:41,540 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-19 04:28:41,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:28:41,540 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-19 04:28:41,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-09-19 04:28:41,555 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:28:41,555 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, 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] [2018-09-19 04:28:41,556 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:28:41,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1021749568, now seen corresponding path program 1 times [2018-09-19 04:28:41,556 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:28:41,556 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 164 with the following transitions: [2018-09-19 04:28:41,557 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], [635], [643], [647], [649], [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] [2018-09-19 04:28:41,564 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:28:41,564 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:28:44,015 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:28:48,373 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:28:48,374 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:28:48,388 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:28:49,697 INFO L232 lantSequenceWeakener]: Weakened 161 states. On average, predicates are now at 78.87% of their original sizes. [2018-09-19 04:28:49,698 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:28:50,238 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:28:50,238 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:28:50,239 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 04:28:50,239 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:28:50,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 04:28:50,241 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 04:28:50,241 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 04:28:50,241 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 12 states. [2018-09-19 04:29:04,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:29:04,384 INFO L93 Difference]: Finished difference Result 1846 states and 3161 transitions. [2018-09-19 04:29:04,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 04:29:04,385 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 163 [2018-09-19 04:29:04,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:29:04,397 INFO L225 Difference]: With dead ends: 1846 [2018-09-19 04:29:04,397 INFO L226 Difference]: Without dead ends: 1446 [2018-09-19 04:29:04,402 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 174 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:29:04,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2018-09-19 04:29:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1435. [2018-09-19 04:29:04,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1435 states. [2018-09-19 04:29:04,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1798 transitions. [2018-09-19 04:29:04,475 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1798 transitions. Word has length 163 [2018-09-19 04:29:04,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:29:04,476 INFO L480 AbstractCegarLoop]: Abstraction has 1435 states and 1798 transitions. [2018-09-19 04:29:04,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 04:29:04,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1798 transitions. [2018-09-19 04:29:04,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-09-19 04:29:04,483 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:29:04,483 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, 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] [2018-09-19 04:29:04,484 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:29:04,484 INFO L82 PathProgramCache]: Analyzing trace with hash 857711048, now seen corresponding path program 1 times [2018-09-19 04:29:04,484 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:29:04,484 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 200 with the following transitions: [2018-09-19 04:29:04,485 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], [635], [643], [647], [649], [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] [2018-09-19 04:29:04,492 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:29:04,492 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:29:08,664 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:29:14,537 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:29:14,537 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:29:14,551 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:29:15,918 INFO L232 lantSequenceWeakener]: Weakened 197 states. On average, predicates are now at 78.58% of their original sizes. [2018-09-19 04:29:15,919 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:29:16,643 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:29:16,644 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:29:16,644 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 04:29:16,644 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:29:16,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 04:29:16,646 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 04:29:16,646 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 04:29:16,646 INFO L87 Difference]: Start difference. First operand 1435 states and 1798 transitions. Second operand 12 states. [2018-09-19 04:29:34,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:29:34,980 INFO L93 Difference]: Finished difference Result 3241 states and 4630 transitions. [2018-09-19 04:29:34,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-19 04:29:34,982 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 199 [2018-09-19 04:29:34,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:29:34,994 INFO L225 Difference]: With dead ends: 3241 [2018-09-19 04:29:34,994 INFO L226 Difference]: Without dead ends: 2150 [2018-09-19 04:29:34,999 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 211 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2018-09-19 04:29:35,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2018-09-19 04:29:35,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2130. [2018-09-19 04:29:35,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2130 states. [2018-09-19 04:29:35,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2530 transitions. [2018-09-19 04:29:35,084 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2530 transitions. Word has length 199 [2018-09-19 04:29:35,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:29:35,085 INFO L480 AbstractCegarLoop]: Abstraction has 2130 states and 2530 transitions. [2018-09-19 04:29:35,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 04:29:35,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2530 transitions. [2018-09-19 04:29:35,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-09-19 04:29:35,093 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:29:35,094 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:29:35,094 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:29:35,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1917063592, now seen corresponding path program 1 times [2018-09-19 04:29:35,095 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:29:35,095 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 312 with the following transitions: [2018-09-19 04:29:35,096 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], [635], [643], [647], [649], [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], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:29:35,106 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:29:35,107 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:29:47,133 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:29:47,134 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:29:47,137 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:29:49,025 INFO L232 lantSequenceWeakener]: Weakened 309 states. On average, predicates are now at 78.11% of their original sizes. [2018-09-19 04:29:49,025 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:29:49,513 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:29:49,513 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:29:49,514 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:29:49,514 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:29:49,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:29:49,515 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:29:49,515 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:29:49,516 INFO L87 Difference]: Start difference. First operand 2130 states and 2530 transitions. Second operand 13 states. [2018-09-19 04:29:57,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:29:57,793 INFO L93 Difference]: Finished difference Result 4257 states and 5387 transitions. [2018-09-19 04:29:57,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:29:57,807 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 311 [2018-09-19 04:29:57,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:29:57,818 INFO L225 Difference]: With dead ends: 4257 [2018-09-19 04:29:57,818 INFO L226 Difference]: Without dead ends: 2473 [2018-09-19 04:29:57,824 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 321 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:29:57,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2018-09-19 04:29:57,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2470. [2018-09-19 04:29:57,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2470 states. [2018-09-19 04:29:57,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 2888 transitions. [2018-09-19 04:29:57,901 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 2888 transitions. Word has length 311 [2018-09-19 04:29:57,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:29:57,902 INFO L480 AbstractCegarLoop]: Abstraction has 2470 states and 2888 transitions. [2018-09-19 04:29:57,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:29:57,903 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 2888 transitions. [2018-09-19 04:29:57,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2018-09-19 04:29:57,910 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:29:57,911 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:29:57,911 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:29:57,911 INFO L82 PathProgramCache]: Analyzing trace with hash 872218168, now seen corresponding path program 1 times [2018-09-19 04:29:57,912 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:29:57,912 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 320 with the following transitions: [2018-09-19 04:29:57,912 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], [635], [643], [647], [649], [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], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:29:57,925 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:29:57,925 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:30:17,188 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:30:17,189 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:30:17,196 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:30:19,048 INFO L232 lantSequenceWeakener]: Weakened 317 states. On average, predicates are now at 78.08% of their original sizes. [2018-09-19 04:30:19,049 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:30:19,486 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:30:19,487 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:30:19,487 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:30:19,487 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:30:19,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:30:19,488 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:30:19,488 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:30:19,488 INFO L87 Difference]: Start difference. First operand 2470 states and 2888 transitions. Second operand 14 states. [2018-09-19 04:30:31,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:30:31,221 INFO L93 Difference]: Finished difference Result 4602 states and 5754 transitions. [2018-09-19 04:30:31,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 04:30:31,228 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 319 [2018-09-19 04:30:31,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:30:31,245 INFO L225 Difference]: With dead ends: 4602 [2018-09-19 04:30:31,245 INFO L226 Difference]: Without dead ends: 2818 [2018-09-19 04:30:31,251 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 331 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:30:31,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2018-09-19 04:30:31,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2812. [2018-09-19 04:30:31,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2812 states. [2018-09-19 04:30:31,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2812 states to 2812 states and 3252 transitions. [2018-09-19 04:30:31,338 INFO L78 Accepts]: Start accepts. Automaton has 2812 states and 3252 transitions. Word has length 319 [2018-09-19 04:30:31,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:30:31,340 INFO L480 AbstractCegarLoop]: Abstraction has 2812 states and 3252 transitions. [2018-09-19 04:30:31,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:30:31,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2812 states and 3252 transitions. [2018-09-19 04:30:31,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-09-19 04:30:31,351 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:30:31,351 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:30:31,351 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:30:31,352 INFO L82 PathProgramCache]: Analyzing trace with hash 157195653, now seen corresponding path program 1 times [2018-09-19 04:30:31,352 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:30:31,352 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 404 with the following transitions: [2018-09-19 04:30:31,353 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], [635], [643], [647], [649], [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], [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], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:30:31,360 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:30:31,360 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:30:32,856 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:30:54,988 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:30:54,988 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:30:54,993 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:30:57,416 INFO L232 lantSequenceWeakener]: Weakened 401 states. On average, predicates are now at 77.94% of their original sizes. [2018-09-19 04:30:57,416 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:30:57,777 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:30:57,778 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:30:57,778 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 04:30:57,778 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:30:57,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 04:30:57,779 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 04:30:57,780 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 04:30:57,780 INFO L87 Difference]: Start difference. First operand 2812 states and 3252 transitions. Second operand 12 states. [2018-09-19 04:31:12,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:31:12,432 INFO L93 Difference]: Finished difference Result 5310 states and 6501 transitions. [2018-09-19 04:31:12,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 04:31:12,432 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 403 [2018-09-19 04:31:12,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:31:12,448 INFO L225 Difference]: With dead ends: 5310 [2018-09-19 04:31:12,448 INFO L226 Difference]: Without dead ends: 3184 [2018-09-19 04:31:12,455 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 418 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2018-09-19 04:31:12,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2018-09-19 04:31:12,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 3167. [2018-09-19 04:31:12,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3167 states. [2018-09-19 04:31:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3167 states to 3167 states and 3635 transitions. [2018-09-19 04:31:12,545 INFO L78 Accepts]: Start accepts. Automaton has 3167 states and 3635 transitions. Word has length 403 [2018-09-19 04:31:12,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:31:12,546 INFO L480 AbstractCegarLoop]: Abstraction has 3167 states and 3635 transitions. [2018-09-19 04:31:12,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 04:31:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3167 states and 3635 transitions. [2018-09-19 04:31:12,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2018-09-19 04:31:12,559 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:31:12,560 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:31:12,560 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:31:12,561 INFO L82 PathProgramCache]: Analyzing trace with hash 309012260, now seen corresponding path program 1 times [2018-09-19 04:31:12,561 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:31:12,561 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 421 with the following transitions: [2018-09-19 04:31:12,562 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], [635], [643], [647], [649], [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], [796], [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], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:31:12,568 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:31:12,568 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:31:20,213 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:31:36,539 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:31:36,539 INFO L272 AbstractInterpreter]: Visited 256 different actions 1013 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:31:36,547 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:31:38,949 INFO L232 lantSequenceWeakener]: Weakened 418 states. On average, predicates are now at 77.91% of their original sizes. [2018-09-19 04:31:38,950 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:31:39,365 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:31:39,365 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:31:39,366 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:31:39,366 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:31:39,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:31:39,367 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:31:39,367 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:31:39,367 INFO L87 Difference]: Start difference. First operand 3167 states and 3635 transitions. Second operand 13 states. [2018-09-19 04:31:55,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:31:55,358 INFO L93 Difference]: Finished difference Result 6003 states and 7253 transitions. [2018-09-19 04:31:55,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 04:31:55,367 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 420 [2018-09-19 04:31:55,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:31:55,383 INFO L225 Difference]: With dead ends: 6003 [2018-09-19 04:31:55,384 INFO L226 Difference]: Without dead ends: 3522 [2018-09-19 04:31:55,392 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 430 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:31:55,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2018-09-19 04:31:55,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3511. [2018-09-19 04:31:55,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3511 states. [2018-09-19 04:31:55,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3511 states to 3511 states and 4016 transitions. [2018-09-19 04:31:55,487 INFO L78 Accepts]: Start accepts. Automaton has 3511 states and 4016 transitions. Word has length 420 [2018-09-19 04:31:55,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:31:55,488 INFO L480 AbstractCegarLoop]: Abstraction has 3511 states and 4016 transitions. [2018-09-19 04:31:55,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:31:55,489 INFO L276 IsEmpty]: Start isEmpty. Operand 3511 states and 4016 transitions. [2018-09-19 04:31:55,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2018-09-19 04:31:55,501 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:31:55,502 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:31:55,502 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:31:55,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1581819405, now seen corresponding path program 1 times [2018-09-19 04:31:55,503 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:31:55,503 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 440 with the following transitions: [2018-09-19 04:31:55,503 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], [635], [643], [647], [649], [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], [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], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:31:55,508 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:31:55,509 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:31:57,944 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:32:19,295 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:32:19,296 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:32:19,300 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:32:21,384 INFO L232 lantSequenceWeakener]: Weakened 437 states. On average, predicates are now at 77.88% of their original sizes. [2018-09-19 04:32:21,384 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:32:21,744 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:32:21,745 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:32:21,745 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 04:32:21,745 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:32:21,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 04:32:21,747 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 04:32:21,747 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 04:32:21,747 INFO L87 Difference]: Start difference. First operand 3511 states and 4016 transitions. Second operand 12 states. Received shutdown request... [2018-09-19 04:32:36,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 04:32:36,763 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:32:36,769 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:32:36,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:32:36 BoogieIcfgContainer [2018-09-19 04:32:36,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:32:36,771 INFO L168 Benchmark]: Toolchain (without parser) took 254952.83 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -538.2 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-19 04:32:36,773 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 04:32:36,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1292.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-09-19 04:32:36,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 218.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 04:32:36,775 INFO L168 Benchmark]: Boogie Preprocessor took 500.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 815.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -953.6 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-19 04:32:36,776 INFO L168 Benchmark]: RCFGBuilder took 5990.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 242.8 MB). Peak memory consumption was 242.8 MB. Max. memory is 7.1 GB. [2018-09-19 04:32:36,777 INFO L168 Benchmark]: TraceAbstraction took 246937.85 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 45.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-19 04:32:36,782 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1292.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 218.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 500.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 815.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -953.6 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5990.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 242.8 MB). Peak memory consumption was 242.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 246937.85 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 45.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 199]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 199). Cancelled while BasicCegarLoop was constructing difference of abstraction (3511states) and FLOYD_HOARE automaton (currently 26 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (4442 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 246.8s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 106.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3042 SDtfs, 16533 SDslu, 2910 SDs, 0 SdLazy, 33181 SolverSat, 3697 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 93.7s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 2409 GetRequests, 2239 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3511occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 121.4s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9965862818384821 AbsIntWeakeningRatio, 0.07423392317652136 AbsIntAvgWeakeningVarsNumRemoved, 922.9917997410445 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 70 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label48_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-32-36-796.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label48_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-32-36-796.csv Completed graceful shutdown