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_label16_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:24:15,758 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:24:15,761 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:24:15,782 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:24:15,782 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:24:15,784 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:24:15,785 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:24:15,787 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:24:15,788 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:24:15,789 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:24:15,791 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:24:15,793 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:24:15,794 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:24:15,796 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:24:15,798 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:24:15,799 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:24:15,806 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:24:15,809 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:24:15,813 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:24:15,816 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:24:15,817 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:24:15,818 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:24:15,820 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:24:15,820 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:24:15,820 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:24:15,821 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:24:15,822 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:24:15,823 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:24:15,824 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:24:15,825 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:24:15,825 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:24:15,826 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 04:24:15,826 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 04:24:15,826 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 04:24:15,827 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 04:24:15,828 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 04:24:15,828 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 04:24:15,855 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:24:15,855 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:24:15,856 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:24:15,856 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:24:15,857 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:24:15,857 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:24:15,857 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:24:15,857 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:24:15,857 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:24:15,857 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:24:15,858 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:24:15,858 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:24:15,859 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:24:15,859 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:24:15,859 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:24:15,859 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:24:15,859 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:24:15,860 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:24:15,860 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:24:15,860 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:24:15,860 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:24:15,860 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:24:15,861 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:24:15,861 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:24:15,861 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:24:15,861 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:24:15,861 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:24:15,862 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:24:15,862 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:24:15,862 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:24:15,862 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:24:15,862 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:24:15,862 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:24:15,863 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:24:15,913 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:24:15,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:24:15,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:24:15,932 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:24:15,933 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:24:15,934 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label16_true-unreach-call.c [2018-09-19 04:24:16,291 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18eaab487/ced0d6aba18f4fb3945be507df049f02/FLAG635abbea1 [2018-09-19 04:24:16,679 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:24:16,680 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label16_true-unreach-call.c [2018-09-19 04:24:16,707 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18eaab487/ced0d6aba18f4fb3945be507df049f02/FLAG635abbea1 [2018-09-19 04:24:16,726 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18eaab487/ced0d6aba18f4fb3945be507df049f02 [2018-09-19 04:24:16,736 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:24:16,740 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:24:16,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:24:16,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:24:16,751 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:24:16,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:24:16" (1/1) ... [2018-09-19 04:24:16,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ed525f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:16, skipping insertion in model container [2018-09-19 04:24:16,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:24:16" (1/1) ... [2018-09-19 04:24:16,770 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:24:17,660 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:24:17,680 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:24:18,012 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:24:18,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:18 WrapperNode [2018-09-19 04:24:18,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:24:18,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:24:18,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:24:18,126 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:24:18,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:18" (1/1) ... [2018-09-19 04:24:18,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:18" (1/1) ... [2018-09-19 04:24:18,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:24:18,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:24:18,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:24:18,356 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:24:18,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:18" (1/1) ... [2018-09-19 04:24:18,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:18" (1/1) ... [2018-09-19 04:24:18,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:18" (1/1) ... [2018-09-19 04:24:18,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:18" (1/1) ... [2018-09-19 04:24:18,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:18" (1/1) ... [2018-09-19 04:24:18,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:18" (1/1) ... [2018-09-19 04:24:18,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:18" (1/1) ... [2018-09-19 04:24:18,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:24:18,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:24:18,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:24:18,933 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:24:18,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:24:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:24:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:24:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 04:24:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 04:24:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:24:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:24:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:24:19,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:24:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:24:19,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:24:26,613 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:24:26,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:24:26 BoogieIcfgContainer [2018-09-19 04:24:26,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:24:26,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:24:26,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:24:26,619 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:24:26,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:24:16" (1/3) ... [2018-09-19 04:24:26,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bae32da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:24:26, skipping insertion in model container [2018-09-19 04:24:26,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:18" (2/3) ... [2018-09-19 04:24:26,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bae32da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:24:26, skipping insertion in model container [2018-09-19 04:24:26,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:24:26" (3/3) ... [2018-09-19 04:24:26,623 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label16_true-unreach-call.c [2018-09-19 04:24:26,634 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:24:26,644 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:24:26,703 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:24:26,704 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:24:26,704 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:24:26,704 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:24:26,704 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:24:26,704 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:24:26,705 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:24:26,705 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:24:26,705 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:24:26,737 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-19 04:24:26,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-19 04:24:26,747 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:24:26,748 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] [2018-09-19 04:24:26,749 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:24:26,755 INFO L82 PathProgramCache]: Analyzing trace with hash 657368747, now seen corresponding path program 1 times [2018-09-19 04:24:26,758 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:24:26,759 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 50 with the following transitions: [2018-09-19 04:24:26,762 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], [471], [473], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-19 04:24:26,825 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:24:26,825 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:24:28,302 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:24:28,304 INFO L272 AbstractInterpreter]: Visited 48 different actions 48 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 04:24:28,346 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:24:28,926 INFO L232 lantSequenceWeakener]: Weakened 47 states. On average, predicates are now at 80.42% of their original sizes. [2018-09-19 04:24:28,927 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:24:29,211 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:24:29,213 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:24:29,213 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:24:29,213 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:24:29,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:24:29,227 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:24:29,228 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:24:29,230 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-19 04:24:36,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:24:36,025 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-19 04:24:36,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:24:36,032 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2018-09-19 04:24:36,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:24:36,057 INFO L225 Difference]: With dead ends: 1158 [2018-09-19 04:24:36,057 INFO L226 Difference]: Without dead ends: 746 [2018-09-19 04:24:36,066 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 48 GetRequests, 44 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 04:24:36,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-19 04:24:36,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-19 04:24:36,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-19 04:24:36,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-19 04:24:36,181 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 49 [2018-09-19 04:24:36,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:24:36,181 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-19 04:24:36,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:24:36,182 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-19 04:24:36,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-09-19 04:24:36,189 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:24:36,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:36,190 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:24:36,190 INFO L82 PathProgramCache]: Analyzing trace with hash 520725928, now seen corresponding path program 1 times [2018-09-19 04:24:36,190 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:24:36,190 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-09-19 04:24:36,191 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], [471], [473], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:24:36,198 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:24:36,198 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:24:38,381 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:24:42,500 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:24:42,500 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 04:24:42,509 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:24:43,721 INFO L232 lantSequenceWeakener]: Weakened 139 states. On average, predicates are now at 78.4% of their original sizes. [2018-09-19 04:24:43,721 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:24:44,180 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:24:44,180 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:24:44,181 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:24:44,181 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:24:44,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:24:44,183 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:24:44,183 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:24:44,183 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-19 04:24:58,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:24:58,142 INFO L93 Difference]: Finished difference Result 1772 states and 3024 transitions. [2018-09-19 04:24:58,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:24:58,143 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 141 [2018-09-19 04:24:58,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:24:58,153 INFO L225 Difference]: With dead ends: 1772 [2018-09-19 04:24:58,153 INFO L226 Difference]: Without dead ends: 1372 [2018-09-19 04:24:58,156 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:24:58,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2018-09-19 04:24:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1094. [2018-09-19 04:24:58,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2018-09-19 04:24:58,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1441 transitions. [2018-09-19 04:24:58,220 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1441 transitions. Word has length 141 [2018-09-19 04:24:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:24:58,221 INFO L480 AbstractCegarLoop]: Abstraction has 1094 states and 1441 transitions. [2018-09-19 04:24:58,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:24:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1441 transitions. [2018-09-19 04:24:58,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-09-19 04:24:58,235 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:24:58,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:58,236 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:24:58,237 INFO L82 PathProgramCache]: Analyzing trace with hash 322339888, now seen corresponding path program 1 times [2018-09-19 04:24:58,237 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:24:58,237 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2018-09-19 04:24:58,240 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], [471], [473], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:24:58,252 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:24:58,254 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:25:01,483 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:25:07,405 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:25:07,406 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 04:25:07,444 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:25:08,953 INFO L232 lantSequenceWeakener]: Weakened 175 states. On average, predicates are now at 78.17% of their original sizes. [2018-09-19 04:25:08,953 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:25:09,335 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:25:09,335 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:25:09,336 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:25:09,336 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:25:09,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:25:09,337 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:25:09,337 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:25:09,337 INFO L87 Difference]: Start difference. First operand 1094 states and 1441 transitions. Second operand 11 states. [2018-09-19 04:25:29,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:25:29,901 INFO L93 Difference]: Finished difference Result 2749 states and 4050 transitions. [2018-09-19 04:25:29,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:25:29,908 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 177 [2018-09-19 04:25:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:25:29,924 INFO L225 Difference]: With dead ends: 2749 [2018-09-19 04:25:29,924 INFO L226 Difference]: Without dead ends: 1999 [2018-09-19 04:25:29,928 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 185 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:25:29,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2018-09-19 04:25:29,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1450. [2018-09-19 04:25:29,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-09-19 04:25:29,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1815 transitions. [2018-09-19 04:25:29,997 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1815 transitions. Word has length 177 [2018-09-19 04:25:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:25:29,998 INFO L480 AbstractCegarLoop]: Abstraction has 1450 states and 1815 transitions. [2018-09-19 04:25:29,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:25:29,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1815 transitions. [2018-09-19 04:25:30,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-09-19 04:25:30,004 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:25:30,004 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:30,005 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:25:30,005 INFO L82 PathProgramCache]: Analyzing trace with hash -2135368688, now seen corresponding path program 1 times [2018-09-19 04:25:30,005 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:25:30,006 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 290 with the following transitions: [2018-09-19 04:25:30,006 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], [471], [473], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [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 04:25:30,015 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:25:30,015 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:25:41,140 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:25:41,141 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 04:25:41,146 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:25:42,842 INFO L232 lantSequenceWeakener]: Weakened 287 states. On average, predicates are now at 77.82% of their original sizes. [2018-09-19 04:25:42,842 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:25:43,246 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:25:43,247 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:25:43,247 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:25:43,247 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:25:43,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:25:43,248 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:25:43,248 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:25:43,249 INFO L87 Difference]: Start difference. First operand 1450 states and 1815 transitions. Second operand 13 states. [2018-09-19 04:26:01,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:26:01,736 INFO L93 Difference]: Finished difference Result 2897 states and 3954 transitions. [2018-09-19 04:26:01,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:26:01,737 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 289 [2018-09-19 04:26:01,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:26:01,750 INFO L225 Difference]: With dead ends: 2897 [2018-09-19 04:26:01,750 INFO L226 Difference]: Without dead ends: 1793 [2018-09-19 04:26:01,754 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 299 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:26:01,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2018-09-19 04:26:01,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1790. [2018-09-19 04:26:01,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2018-09-19 04:26:01,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2172 transitions. [2018-09-19 04:26:01,819 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2172 transitions. Word has length 289 [2018-09-19 04:26:01,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:26:01,820 INFO L480 AbstractCegarLoop]: Abstraction has 1790 states and 2172 transitions. [2018-09-19 04:26:01,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:26:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2172 transitions. [2018-09-19 04:26:01,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2018-09-19 04:26:01,826 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:26:01,826 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:01,827 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:26:01,827 INFO L82 PathProgramCache]: Analyzing trace with hash -2096745312, now seen corresponding path program 1 times [2018-09-19 04:26:01,827 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:26:01,828 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 298 with the following transitions: [2018-09-19 04:26:01,828 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], [471], [473], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [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 04:26:01,837 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:26:01,837 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:26:18,955 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:26:18,956 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 04:26:18,963 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:26:20,662 INFO L232 lantSequenceWeakener]: Weakened 295 states. On average, predicates are now at 77.81% of their original sizes. [2018-09-19 04:26:20,662 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:26:21,091 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:26:21,091 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:26:21,091 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:26:21,092 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:26:21,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:26:21,093 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:26:21,093 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:26:21,093 INFO L87 Difference]: Start difference. First operand 1790 states and 2172 transitions. Second operand 14 states. [2018-09-19 04:26:32,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:26:32,526 INFO L93 Difference]: Finished difference Result 3242 states and 4318 transitions. [2018-09-19 04:26:32,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 04:26:32,527 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 297 [2018-09-19 04:26:32,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:26:32,538 INFO L225 Difference]: With dead ends: 3242 [2018-09-19 04:26:32,538 INFO L226 Difference]: Without dead ends: 2138 [2018-09-19 04:26:32,542 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 309 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:26:32,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2018-09-19 04:26:32,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2132. [2018-09-19 04:26:32,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2018-09-19 04:26:32,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2533 transitions. [2018-09-19 04:26:32,611 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2533 transitions. Word has length 297 [2018-09-19 04:26:32,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:26:32,612 INFO L480 AbstractCegarLoop]: Abstraction has 2132 states and 2533 transitions. [2018-09-19 04:26:32,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:26:32,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2533 transitions. [2018-09-19 04:26:32,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2018-09-19 04:26:32,621 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:26:32,621 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:26:32,622 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:26:32,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1169566451, now seen corresponding path program 1 times [2018-09-19 04:26:32,622 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:26:32,622 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 382 with the following transitions: [2018-09-19 04:26:32,623 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], [471], [473], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [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 04:26:32,629 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:26:32,630 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:26:34,223 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:26:55,598 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:26:55,598 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 04:26:55,605 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:26:58,025 INFO L232 lantSequenceWeakener]: Weakened 379 states. On average, predicates are now at 77.71% of their original sizes. [2018-09-19 04:26:58,025 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:26:58,365 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:26:58,366 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:26:58,366 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:26:58,366 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:26:58,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:26:58,367 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:26:58,367 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:26:58,368 INFO L87 Difference]: Start difference. First operand 2132 states and 2533 transitions. Second operand 11 states. [2018-09-19 04:27:10,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:27:10,466 INFO L93 Difference]: Finished difference Result 4495 states and 5901 transitions. [2018-09-19 04:27:10,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 04:27:10,467 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 381 [2018-09-19 04:27:10,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:27:10,483 INFO L225 Difference]: With dead ends: 4495 [2018-09-19 04:27:10,483 INFO L226 Difference]: Without dead ends: 3049 [2018-09-19 04:27:10,489 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 391 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-09-19 04:27:10,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2018-09-19 04:27:10,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 2489. [2018-09-19 04:27:10,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2018-09-19 04:27:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 2917 transitions. [2018-09-19 04:27:10,568 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 2917 transitions. Word has length 381 [2018-09-19 04:27:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:27:10,569 INFO L480 AbstractCegarLoop]: Abstraction has 2489 states and 2917 transitions. [2018-09-19 04:27:10,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:27:10,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 2917 transitions. [2018-09-19 04:27:10,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2018-09-19 04:27:10,580 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:27:10,580 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:27:10,580 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:27:10,581 INFO L82 PathProgramCache]: Analyzing trace with hash -367058324, now seen corresponding path program 1 times [2018-09-19 04:27:10,581 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:27:10,581 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 399 with the following transitions: [2018-09-19 04:27:10,582 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], [471], [473], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [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 04:27:10,589 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:27:10,589 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:27:17,811 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:27:38,063 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:27:38,063 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 04:27:38,068 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:27:40,353 INFO L232 lantSequenceWeakener]: Weakened 396 states. On average, predicates are now at 77.69% of their original sizes. [2018-09-19 04:27:40,353 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:27:40,743 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:27:40,744 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:27:40,744 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:27:40,744 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:27:40,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:27:40,745 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:27:40,745 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:27:40,746 INFO L87 Difference]: Start difference. First operand 2489 states and 2917 transitions. Second operand 13 states. [2018-09-19 04:27:52,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:27:52,471 INFO L93 Difference]: Finished difference Result 4647 states and 5816 transitions. [2018-09-19 04:27:52,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 04:27:52,478 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 398 [2018-09-19 04:27:52,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:27:52,491 INFO L225 Difference]: With dead ends: 4647 [2018-09-19 04:27:52,491 INFO L226 Difference]: Without dead ends: 2844 [2018-09-19 04:27:52,496 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 408 GetRequests, 386 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 04:27:52,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2018-09-19 04:27:52,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2833. [2018-09-19 04:27:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2833 states. [2018-09-19 04:27:52,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 3297 transitions. [2018-09-19 04:27:52,565 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 3297 transitions. Word has length 398 [2018-09-19 04:27:52,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:27:52,566 INFO L480 AbstractCegarLoop]: Abstraction has 2833 states and 3297 transitions. [2018-09-19 04:27:52,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:27:52,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 3297 transitions. [2018-09-19 04:27:52,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2018-09-19 04:27:52,571 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:27:52,572 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:27:52,572 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:27:52,572 INFO L82 PathProgramCache]: Analyzing trace with hash -2064399467, now seen corresponding path program 1 times [2018-09-19 04:27:52,572 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:27:52,573 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 418 with the following transitions: [2018-09-19 04:27:52,573 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], [471], [473], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [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 04:27:52,578 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:27:52,579 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:27:55,050 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:28:15,847 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:28:15,847 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 04:28:15,851 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-19 04:28:17,917 INFO L232 lantSequenceWeakener]: Weakened 415 states. On average, predicates are now at 77.67% of their original sizes. [2018-09-19 04:28:17,918 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:28:17,948 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:28:17,955 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:28:17,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:28:17 BoogieIcfgContainer [2018-09-19 04:28:17,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:28:17,957 INFO L168 Benchmark]: Toolchain (without parser) took 241219.70 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 3.8 GB in the end (delta: -2.3 GB). Peak memory consumption was 339.9 MB. Max. memory is 7.1 GB. [2018-09-19 04:28:17,960 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 04:28:17,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1384.94 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 04:28:17,961 INFO L168 Benchmark]: Boogie Procedure Inliner took 229.12 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 04:28:17,963 INFO L168 Benchmark]: Boogie Preprocessor took 576.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 822.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -971.7 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-19 04:28:17,964 INFO L168 Benchmark]: RCFGBuilder took 7681.66 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: 260.9 MB). Peak memory consumption was 260.9 MB. Max. memory is 7.1 GB. [2018-09-19 04:28:17,965 INFO L168 Benchmark]: TraceAbstraction took 231340.55 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 3.8 GB in the end (delta: -1.8 GB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. [2018-09-19 04:28:17,976 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1384.94 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 229.12 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 576.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 822.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -971.7 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7681.66 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: 260.9 MB). Peak memory consumption was 260.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231340.55 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 3.8 GB in the end (delta: -1.8 GB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 133]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 133). Cancelled while BasicCegarLoop was analyzing trace of length 418 with TraceHistMax 3, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 231.2s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 95.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2793 SDtfs, 13747 SDslu, 2359 SDs, 0 SdLazy, 27653 SolverSat, 3286 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 84.5s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1789 GetRequests, 1660 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2833occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 119.1s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9963056585799921 AbsIntWeakeningRatio, 0.08033629145259225 AbsIntAvgWeakeningVarsNumRemoved, 920.4838860345633 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 1409 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_label16_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-28-17-999.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label16_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-28-17-999.csv Completed graceful shutdown