java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 12:50:53,774 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 12:50:53,776 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 12:50:53,788 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 12:50:53,788 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 12:50:53,789 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 12:50:53,790 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 12:50:53,792 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 12:50:53,794 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 12:50:53,795 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 12:50:53,796 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 12:50:53,796 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 12:50:53,797 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 12:50:53,798 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 12:50:53,799 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 12:50:53,800 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 12:50:53,800 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 12:50:53,802 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 12:50:53,804 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 12:50:53,806 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 12:50:53,810 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 12:50:53,811 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 12:50:53,817 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 12:50:53,817 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 12:50:53,817 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 12:50:53,818 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 12:50:53,822 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 12:50:53,823 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 12:50:53,827 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 12:50:53,828 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 12:50:53,828 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 12:50:53,829 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 12:50:53,829 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 12:50:53,830 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 12:50:53,831 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 12:50:53,831 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 12:50:53,832 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-19 12:50:53,860 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 12:50:53,860 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 12:50:53,861 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 12:50:53,861 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 12:50:53,861 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 12:50:53,862 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 12:50:53,862 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 12:50:53,862 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 12:50:53,862 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 12:50:53,862 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 12:50:53,863 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 12:50:53,863 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 12:50:53,864 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 12:50:53,864 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 12:50:53,865 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 12:50:53,865 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 12:50:53,865 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 12:50:53,865 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 12:50:53,865 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 12:50:53,866 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 12:50:53,866 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 12:50:53,866 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 12:50:53,866 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 12:50:53,866 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 12:50:53,868 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 12:50:53,868 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 12:50:53,869 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 12:50:53,869 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 12:50:53,869 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 12:50:53,869 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 12:50:53,870 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 12:50:53,870 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 12:50:53,870 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 12:50:53,870 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 12:50:53,921 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 12:50:53,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 12:50:53,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 12:50:53,953 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 12:50:53,954 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 12:50:53,954 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c [2018-09-19 12:50:54,301 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80143787d/cbb2f9349da743f3bc1fb30310bcf245/FLAG44585f28b [2018-09-19 12:50:54,847 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 12:50:54,848 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c [2018-09-19 12:50:54,896 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80143787d/cbb2f9349da743f3bc1fb30310bcf245/FLAG44585f28b [2018-09-19 12:50:54,916 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80143787d/cbb2f9349da743f3bc1fb30310bcf245 [2018-09-19 12:50:54,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 12:50:54,931 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 12:50:54,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 12:50:54,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 12:50:54,941 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 12:50:54,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:50:54" (1/1) ... [2018-09-19 12:50:54,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bfcf7a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:54, skipping insertion in model container [2018-09-19 12:50:54,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:50:54" (1/1) ... [2018-09-19 12:50:54,960 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 12:50:56,527 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:50:56,550 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 12:50:57,259 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:50:57,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:57 WrapperNode [2018-09-19 12:50:57,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 12:50:57,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 12:50:57,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 12:50:57,638 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 12:50:57,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:57" (1/1) ... [2018-09-19 12:50:57,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:57" (1/1) ... [2018-09-19 12:50:58,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 12:50:58,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 12:50:58,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 12:50:58,709 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 12:50:58,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:57" (1/1) ... [2018-09-19 12:50:58,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:57" (1/1) ... [2018-09-19 12:50:58,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:57" (1/1) ... [2018-09-19 12:50:58,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:57" (1/1) ... [2018-09-19 12:50:58,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:57" (1/1) ... [2018-09-19 12:50:59,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:57" (1/1) ... [2018-09-19 12:50:59,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:57" (1/1) ... [2018-09-19 12:50:59,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 12:50:59,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 12:50:59,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 12:50:59,240 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 12:50:59,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:57" (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 12:50:59,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 12:50:59,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 12:50:59,302 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 12:50:59,302 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 12:50:59,302 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 12:50:59,303 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 12:50:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 12:50:59,303 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 12:50:59,303 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 12:50:59,303 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 12:50:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 12:50:59,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 12:50:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 12:50:59,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 12:51:09,149 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 12:51:09,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:51:09 BoogieIcfgContainer [2018-09-19 12:51:09,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 12:51:09,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 12:51:09,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 12:51:09,155 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 12:51:09,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 12:50:54" (1/3) ... [2018-09-19 12:51:09,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7329f9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:51:09, skipping insertion in model container [2018-09-19 12:51:09,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:50:57" (2/3) ... [2018-09-19 12:51:09,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7329f9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:51:09, skipping insertion in model container [2018-09-19 12:51:09,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:51:09" (3/3) ... [2018-09-19 12:51:09,159 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label09_true-unreach-call.c [2018-09-19 12:51:09,168 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 12:51:09,177 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 12:51:09,240 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 12:51:09,240 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 12:51:09,240 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 12:51:09,241 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 12:51:09,241 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 12:51:09,241 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 12:51:09,241 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 12:51:09,241 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 12:51:09,241 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 12:51:09,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-19 12:51:09,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-19 12:51:09,306 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:09,308 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] [2018-09-19 12:51:09,309 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:09,317 INFO L82 PathProgramCache]: Analyzing trace with hash 688094243, now seen corresponding path program 1 times [2018-09-19 12:51:09,319 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:09,321 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 68 with the following transitions: [2018-09-19 12:51:09,324 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3063], [3065], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-19 12:51:09,376 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:09,377 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:09,730 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:51:09,732 INFO L272 AbstractInterpreter]: Visited 66 different actions 66 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 12:51:09,780 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:51:10,018 INFO L232 lantSequenceWeakener]: Weakened 64 states. On average, predicates are now at 73.33% of their original sizes. [2018-09-19 12:51:10,018 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:51:10,277 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:51:10,281 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:51:10,282 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 12:51:10,282 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:51:10,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 12:51:10,295 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 12:51:10,296 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:51:10,298 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-19 12:51:29,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:51:29,378 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-19 12:51:29,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 12:51:29,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2018-09-19 12:51:29,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:51:29,411 INFO L225 Difference]: With dead ends: 3044 [2018-09-19 12:51:29,411 INFO L226 Difference]: Without dead ends: 1922 [2018-09-19 12:51:29,421 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 66 GetRequests, 62 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 12:51:29,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-19 12:51:29,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-19 12:51:29,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-19 12:51:29,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-19 12:51:29,572 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 67 [2018-09-19 12:51:29,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:51:29,573 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-19 12:51:29,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 12:51:29,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-19 12:51:29,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-09-19 12:51:29,583 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:29,584 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:51:29,584 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:29,585 INFO L82 PathProgramCache]: Analyzing trace with hash -84457968, now seen corresponding path program 1 times [2018-09-19 12:51:29,585 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:29,585 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2018-09-19 12:51:29,586 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3063], [3065], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:51:29,592 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:29,592 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:30,090 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:51:30,091 INFO L272 AbstractInterpreter]: Visited 108 different actions 311 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:51:30,114 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:51:30,419 INFO L232 lantSequenceWeakener]: Weakened 165 states. On average, predicates are now at 71.85% of their original sizes. [2018-09-19 12:51:30,421 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:51:30,781 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:51:30,782 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:51:30,782 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:51:30,782 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:51:30,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:51:30,783 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:51:30,784 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:51:30,784 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-19 12:51:54,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:51:54,624 INFO L93 Difference]: Finished difference Result 3841 states and 6447 transitions. [2018-09-19 12:51:54,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:51:54,625 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 168 [2018-09-19 12:51:54,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:51:54,640 INFO L225 Difference]: With dead ends: 3841 [2018-09-19 12:51:54,640 INFO L226 Difference]: Without dead ends: 2731 [2018-09-19 12:51:54,645 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 174 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:51:54,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2018-09-19 12:51:54,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2726. [2018-09-19 12:51:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-19 12:51:54,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3662 transitions. [2018-09-19 12:51:54,714 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3662 transitions. Word has length 168 [2018-09-19 12:51:54,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:51:54,715 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3662 transitions. [2018-09-19 12:51:54,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:51:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3662 transitions. [2018-09-19 12:51:54,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-09-19 12:51:54,720 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:54,721 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:51:54,721 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:54,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1138323077, now seen corresponding path program 1 times [2018-09-19 12:51:54,721 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:54,722 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-09-19 12:51:54,722 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3063], [3065], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:51:54,728 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:54,728 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:54,873 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:51:55,146 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:51:55,146 INFO L272 AbstractInterpreter]: Visited 137 different actions 398 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:51:55,188 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:51:55,578 INFO L232 lantSequenceWeakener]: Weakened 194 states. On average, predicates are now at 71.7% of their original sizes. [2018-09-19 12:51:55,579 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:51:55,743 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:51:55,744 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:51:55,744 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:51:55,744 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:51:55,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:51:55,745 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:51:55,745 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:51:55,746 INFO L87 Difference]: Start difference. First operand 2726 states and 3662 transitions. Second operand 10 states. [2018-09-19 12:52:08,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:52:08,130 INFO L93 Difference]: Finished difference Result 4658 states and 7291 transitions. [2018-09-19 12:52:08,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:52:08,134 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 197 [2018-09-19 12:52:08,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:52:08,150 INFO L225 Difference]: With dead ends: 4658 [2018-09-19 12:52:08,150 INFO L226 Difference]: Without dead ends: 3548 [2018-09-19 12:52:08,154 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 203 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:52:08,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2018-09-19 12:52:08,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3542. [2018-09-19 12:52:08,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3542 states. [2018-09-19 12:52:08,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 4500 transitions. [2018-09-19 12:52:08,239 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 4500 transitions. Word has length 197 [2018-09-19 12:52:08,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:52:08,240 INFO L480 AbstractCegarLoop]: Abstraction has 3542 states and 4500 transitions. [2018-09-19 12:52:08,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:52:08,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 4500 transitions. [2018-09-19 12:52:08,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-09-19 12:52:08,248 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:52:08,248 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 12:52:08,248 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:52:08,249 INFO L82 PathProgramCache]: Analyzing trace with hash 781706275, now seen corresponding path program 1 times [2018-09-19 12:52:08,249 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:52:08,249 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-09-19 12:52:08,250 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3063], [3065], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:52:08,259 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:52:08,260 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:52:08,424 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:52:08,571 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:52:08,571 INFO L272 AbstractInterpreter]: Visited 109 different actions 423 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:52:08,600 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:52:08,969 INFO L232 lantSequenceWeakener]: Weakened 259 states. On average, predicates are now at 71.52% of their original sizes. [2018-09-19 12:52:08,969 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:52:09,197 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:52:09,197 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:52:09,198 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:52:09,198 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:52:09,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:52:09,199 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:52:09,199 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:52:09,199 INFO L87 Difference]: Start difference. First operand 3542 states and 4500 transitions. Second operand 10 states. [2018-09-19 12:52:29,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:52:29,652 INFO L93 Difference]: Finished difference Result 6286 states and 8969 transitions. [2018-09-19 12:52:29,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:52:29,655 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 262 [2018-09-19 12:52:29,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:52:29,674 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 12:52:29,674 INFO L226 Difference]: Without dead ends: 4360 [2018-09-19 12:52:29,682 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 268 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:52:29,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2018-09-19 12:52:29,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 4349. [2018-09-19 12:52:29,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4349 states. [2018-09-19 12:52:29,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4349 states to 4349 states and 5346 transitions. [2018-09-19 12:52:29,784 INFO L78 Accepts]: Start accepts. Automaton has 4349 states and 5346 transitions. Word has length 262 [2018-09-19 12:52:29,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:52:29,785 INFO L480 AbstractCegarLoop]: Abstraction has 4349 states and 5346 transitions. [2018-09-19 12:52:29,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:52:29,785 INFO L276 IsEmpty]: Start isEmpty. Operand 4349 states and 5346 transitions. [2018-09-19 12:52:29,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-09-19 12:52:29,790 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:52:29,791 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 12:52:29,791 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:52:29,791 INFO L82 PathProgramCache]: Analyzing trace with hash 670384955, now seen corresponding path program 1 times [2018-09-19 12:52:29,791 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:52:29,792 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 275 with the following transitions: [2018-09-19 12:52:29,792 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3063], [3065], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:52:29,795 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:52:29,796 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:52:30,123 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:52:30,382 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:52:30,382 INFO L272 AbstractInterpreter]: Visited 114 different actions 554 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:52:30,411 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:52:30,801 INFO L232 lantSequenceWeakener]: Weakened 271 states. On average, predicates are now at 71.48% of their original sizes. [2018-09-19 12:52:30,801 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:52:30,905 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:52:30,905 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:52:30,905 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:52:30,905 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:52:30,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:52:30,906 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:52:30,906 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:52:30,907 INFO L87 Difference]: Start difference. First operand 4349 states and 5346 transitions. Second operand 10 states. [2018-09-19 12:52:54,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:52:54,097 INFO L93 Difference]: Finished difference Result 7115 states and 9845 transitions. [2018-09-19 12:52:54,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 12:52:54,099 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 274 [2018-09-19 12:52:54,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:52:54,119 INFO L225 Difference]: With dead ends: 7115 [2018-09-19 12:52:54,119 INFO L226 Difference]: Without dead ends: 5189 [2018-09-19 12:52:54,124 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 281 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:52:54,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5189 states. [2018-09-19 12:52:54,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5189 to 5167. [2018-09-19 12:52:54,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5167 states. [2018-09-19 12:52:54,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 6284 transitions. [2018-09-19 12:52:54,217 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 6284 transitions. Word has length 274 [2018-09-19 12:52:54,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:52:54,218 INFO L480 AbstractCegarLoop]: Abstraction has 5167 states and 6284 transitions. [2018-09-19 12:52:54,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:52:54,218 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 6284 transitions. [2018-09-19 12:52:54,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-09-19 12:52:54,223 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:52:54,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:52:54,224 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:52:54,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1870325828, now seen corresponding path program 1 times [2018-09-19 12:52:54,225 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:52:54,225 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 291 with the following transitions: [2018-09-19 12:52:54,225 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3063], [3065], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3572], [3576], [3580], [3591], [3595], [3599], [3603], [3614], [3618], [3622], [3626], [3630], [3634], [3638], [3642], [3646], [3650], [3654], [3658], [3662], [3666], [3670], [3674], [3678], [3682], [3686], [3690], [3694], [3698], [3709], [3713], [3717], [3721], [3725], [3729], [3733], [3737], [3741], [3745], [3749], [3753], [3757], [3768], [3772], [3776], [3780], [3784], [3788], [3792], [3796], [3800], [3804], [3815], [3819], [3823], [3827], [3831], [3835], [3839], [3843], [3847], [3851], [3862], [3865], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:52:54,231 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:52:54,232 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:52:54,459 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:52:54,844 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:52:54,844 INFO L272 AbstractInterpreter]: Visited 230 different actions 677 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:52:54,854 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:52:55,461 INFO L232 lantSequenceWeakener]: Weakened 287 states. On average, predicates are now at 71.42% of their original sizes. [2018-09-19 12:52:55,462 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:52:55,589 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:52:55,589 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:52:55,589 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:52:55,590 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:52:55,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:52:55,590 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:52:55,590 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:52:55,592 INFO L87 Difference]: Start difference. First operand 5167 states and 6284 transitions. Second operand 10 states. [2018-09-19 12:53:12,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:12,543 INFO L93 Difference]: Finished difference Result 9545 states and 12511 transitions. [2018-09-19 12:53:12,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:53:12,545 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 290 [2018-09-19 12:53:12,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:12,566 INFO L225 Difference]: With dead ends: 9545 [2018-09-19 12:53:12,566 INFO L226 Difference]: Without dead ends: 6800 [2018-09-19 12:53:12,574 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 296 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:53:12,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6800 states. [2018-09-19 12:53:12,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6800 to 6794. [2018-09-19 12:53:12,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6794 states. [2018-09-19 12:53:12,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 7947 transitions. [2018-09-19 12:53:12,696 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 7947 transitions. Word has length 290 [2018-09-19 12:53:12,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:12,697 INFO L480 AbstractCegarLoop]: Abstraction has 6794 states and 7947 transitions. [2018-09-19 12:53:12,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:12,697 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 7947 transitions. [2018-09-19 12:53:12,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-09-19 12:53:12,703 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:12,704 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:53:12,704 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:12,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1038786866, now seen corresponding path program 1 times [2018-09-19 12:53:12,705 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:12,705 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 299 with the following transitions: [2018-09-19 12:53:12,705 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3063], [3065], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:12,709 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:12,709 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:12,832 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:13,274 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:13,275 INFO L272 AbstractInterpreter]: Visited 138 different actions 675 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:53:13,308 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:13,737 INFO L232 lantSequenceWeakener]: Weakened 295 states. On average, predicates are now at 71.43% of their original sizes. [2018-09-19 12:53:13,738 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:13,894 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:13,895 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:13,895 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:13,895 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:13,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:13,896 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:13,896 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:13,896 INFO L87 Difference]: Start difference. First operand 6794 states and 7947 transitions. Second operand 10 states. [2018-09-19 12:53:33,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:33,885 INFO L93 Difference]: Finished difference Result 13654 states and 16856 transitions. [2018-09-19 12:53:33,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:53:33,885 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 298 [2018-09-19 12:53:33,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:33,913 INFO L225 Difference]: With dead ends: 13654 [2018-09-19 12:53:33,913 INFO L226 Difference]: Without dead ends: 9279 [2018-09-19 12:53:33,923 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 305 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:53:33,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9279 states. [2018-09-19 12:53:34,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9279 to 9252. [2018-09-19 12:53:34,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9252 states. [2018-09-19 12:53:34,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9252 states to 9252 states and 10537 transitions. [2018-09-19 12:53:34,066 INFO L78 Accepts]: Start accepts. Automaton has 9252 states and 10537 transitions. Word has length 298 [2018-09-19 12:53:34,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:34,067 INFO L480 AbstractCegarLoop]: Abstraction has 9252 states and 10537 transitions. [2018-09-19 12:53:34,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:34,067 INFO L276 IsEmpty]: Start isEmpty. Operand 9252 states and 10537 transitions. [2018-09-19 12:53:34,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2018-09-19 12:53:34,075 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:34,075 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:53:34,075 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:34,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1862073878, now seen corresponding path program 1 times [2018-09-19 12:53:34,076 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:34,076 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 341 with the following transitions: [2018-09-19 12:53:34,076 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3063], [3065], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3159], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:34,079 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:34,079 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:34,235 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:35,588 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:35,588 INFO L272 AbstractInterpreter]: Visited 110 different actions 647 times. Merged at 8 different actions 42 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:53:35,632 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:36,225 INFO L232 lantSequenceWeakener]: Weakened 337 states. On average, predicates are now at 71.38% of their original sizes. [2018-09-19 12:53:36,225 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:36,321 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:36,322 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:36,322 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:36,322 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:36,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:36,323 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:36,323 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:36,323 INFO L87 Difference]: Start difference. First operand 9252 states and 10537 transitions. Second operand 10 states. [2018-09-19 12:53:54,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:53:54,531 INFO L93 Difference]: Finished difference Result 15294 states and 18522 transitions. [2018-09-19 12:53:54,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:53:54,532 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 340 [2018-09-19 12:53:54,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:53:54,558 INFO L225 Difference]: With dead ends: 15294 [2018-09-19 12:53:54,558 INFO L226 Difference]: Without dead ends: 10085 [2018-09-19 12:53:54,569 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 346 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:53:54,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10085 states. [2018-09-19 12:53:54,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10085 to 10061. [2018-09-19 12:53:54,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10061 states. [2018-09-19 12:53:54,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 11413 transitions. [2018-09-19 12:53:54,708 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 11413 transitions. Word has length 340 [2018-09-19 12:53:54,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:53:54,709 INFO L480 AbstractCegarLoop]: Abstraction has 10061 states and 11413 transitions. [2018-09-19 12:53:54,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:53:54,709 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 11413 transitions. [2018-09-19 12:53:54,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-09-19 12:53:54,718 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:53:54,718 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:53:54,719 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:53:54,719 INFO L82 PathProgramCache]: Analyzing trace with hash -631774934, now seen corresponding path program 1 times [2018-09-19 12:53:54,719 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:53:54,719 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 351 with the following transitions: [2018-09-19 12:53:54,720 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3063], [3065], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:53:54,722 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:53:54,722 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:53:54,874 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:53:55,298 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:53:55,298 INFO L272 AbstractInterpreter]: Visited 115 different actions 675 times. Merged at 8 different actions 40 times. Widened at 1 different actions 1 times. Found 9 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:53:55,338 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:53:55,991 INFO L232 lantSequenceWeakener]: Weakened 347 states. On average, predicates are now at 71.37% of their original sizes. [2018-09-19 12:53:55,991 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:53:56,091 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:53:56,092 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:53:56,092 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:53:56,092 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:53:56,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:53:56,093 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:53:56,093 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:53:56,093 INFO L87 Difference]: Start difference. First operand 10061 states and 11413 transitions. Second operand 10 states. [2018-09-19 12:54:07,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:54:07,824 INFO L93 Difference]: Finished difference Result 17756 states and 21202 transitions. [2018-09-19 12:54:07,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:54:07,825 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 350 [2018-09-19 12:54:07,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:54:07,851 INFO L225 Difference]: With dead ends: 17756 [2018-09-19 12:54:07,851 INFO L226 Difference]: Without dead ends: 11734 [2018-09-19 12:54:07,865 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 357 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:54:07,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2018-09-19 12:54:08,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11704. [2018-09-19 12:54:08,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11704 states. [2018-09-19 12:54:08,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11704 states to 11704 states and 13240 transitions. [2018-09-19 12:54:08,042 INFO L78 Accepts]: Start accepts. Automaton has 11704 states and 13240 transitions. Word has length 350 [2018-09-19 12:54:08,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:54:08,043 INFO L480 AbstractCegarLoop]: Abstraction has 11704 states and 13240 transitions. [2018-09-19 12:54:08,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:54:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 11704 states and 13240 transitions. [2018-09-19 12:54:08,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2018-09-19 12:54:08,052 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:54:08,052 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:54:08,053 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:54:08,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1174900995, now seen corresponding path program 1 times [2018-09-19 12:54:08,053 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:54:08,053 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 366 with the following transitions: [2018-09-19 12:54:08,054 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3063], [3065], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3210], [3213], [3217], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:54:08,056 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:54:08,056 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:54:08,191 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:54:08,774 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:54:08,775 INFO L272 AbstractInterpreter]: Visited 117 different actions 679 times. Merged at 8 different actions 40 times. Widened at 1 different actions 1 times. Found 8 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:54:08,777 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:54:09,201 INFO L232 lantSequenceWeakener]: Weakened 362 states. On average, predicates are now at 71.4% of their original sizes. [2018-09-19 12:54:09,201 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:54:09,347 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:54:09,347 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:54:09,347 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 12:54:09,347 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:54:09,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 12:54:09,348 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 12:54:09,348 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-09-19 12:54:09,348 INFO L87 Difference]: Start difference. First operand 11704 states and 13240 transitions. Second operand 12 states. [2018-09-19 12:54:56,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:54:56,512 INFO L93 Difference]: Finished difference Result 22751 states and 29077 transitions. [2018-09-19 12:54:56,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-19 12:54:56,512 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 365 [2018-09-19 12:54:56,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:54:56,546 INFO L225 Difference]: With dead ends: 22751 [2018-09-19 12:54:56,546 INFO L226 Difference]: Without dead ends: 15901 [2018-09-19 12:54:56,561 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 390 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=1186, Unknown=0, NotChecked=0, Total=1406 [2018-09-19 12:54:56,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15901 states. [2018-09-19 12:54:56,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15901 to 15812. [2018-09-19 12:54:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15812 states. [2018-09-19 12:54:56,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15812 states to 15812 states and 18058 transitions. [2018-09-19 12:54:56,768 INFO L78 Accepts]: Start accepts. Automaton has 15812 states and 18058 transitions. Word has length 365 [2018-09-19 12:54:56,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:54:56,768 INFO L480 AbstractCegarLoop]: Abstraction has 15812 states and 18058 transitions. [2018-09-19 12:54:56,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 12:54:56,769 INFO L276 IsEmpty]: Start isEmpty. Operand 15812 states and 18058 transitions. [2018-09-19 12:54:56,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-09-19 12:54:56,779 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:54:56,779 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:54:56,779 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:54:56,780 INFO L82 PathProgramCache]: Analyzing trace with hash 203549710, now seen corresponding path program 1 times [2018-09-19 12:54:56,780 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:54:56,780 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 369 with the following transitions: [2018-09-19 12:54:56,780 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3063], [3065], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3278], [3282], [3285], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-09-19 12:54:56,783 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:54:56,783 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:54:56,911 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:54:57,247 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:54:57,247 INFO L272 AbstractInterpreter]: Visited 115 different actions 680 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 11 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:54:57,288 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:54:57,734 INFO L232 lantSequenceWeakener]: Weakened 365 states. On average, predicates are now at 71.34% of their original sizes. [2018-09-19 12:54:57,734 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:54:57,841 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:54:57,841 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:54:57,842 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:54:57,842 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:54:57,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:54:57,842 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:54:57,842 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:54:57,843 INFO L87 Difference]: Start difference. First operand 15812 states and 18058 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 12:55:00,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 12:55:00,627 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 12:55:00,633 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 12:55:00,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 12:55:00 BoogieIcfgContainer [2018-09-19 12:55:00,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 12:55:00,635 INFO L168 Benchmark]: Toolchain (without parser) took 245706.72 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 592.4 MB. Max. memory is 7.1 GB. [2018-09-19 12:55:00,636 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 12:55:00,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2704.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 341.9 MB). Peak memory consumption was 341.9 MB. Max. memory is 7.1 GB. [2018-09-19 12:55:00,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 1071.29 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 976.7 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 189.7 MB. Max. memory is 7.1 GB. [2018-09-19 12:55:00,638 INFO L168 Benchmark]: Boogie Preprocessor took 530.74 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 77.1 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. [2018-09-19 12:55:00,639 INFO L168 Benchmark]: RCFGBuilder took 9910.72 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 148.9 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -2.9 MB). Peak memory consumption was 701.5 MB. Max. memory is 7.1 GB. [2018-09-19 12:55:00,640 INFO L168 Benchmark]: TraceAbstraction took 231482.38 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 2.3 GB in the beginning and 3.3 GB in the end (delta: -994.4 MB). Peak memory consumption was 346.2 MB. Max. memory is 7.1 GB. [2018-09-19 12:55:00,645 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 2704.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 341.9 MB). Peak memory consumption was 341.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1071.29 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 976.7 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 189.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 530.74 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 77.1 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9910.72 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 148.9 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -2.9 MB). Peak memory consumption was 701.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231482.38 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 2.3 GB in the beginning and 3.3 GB in the end (delta: -994.4 MB). Peak memory consumption was 346.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while BasicCegarLoop was constructing difference of abstraction (15812states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (1360 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 231.4s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 216.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12178 SDtfs, 27478 SDslu, 11034 SDs, 0 SdLazy, 134429 SolverSat, 9272 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 187.4s Time, PredicateUnifierStatistics: 22 DeclaredPredicates, 3060 GetRequests, 2882 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15812occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.0s AbstIntTime, 11 AbstIntIterations, 11 AbstIntStrong, 0.9975417985077558 AbsIntWeakeningRatio, 0.09905660377358491 AbsIntAvgWeakeningVarsNumRemoved, 23.5599730458221 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 222 StatesRemovedByMinimization, 10 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/Problem13_label09_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_12-55-00-660.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label09_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_12-55-00-660.csv Completed graceful shutdown