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_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 12:55:42,841 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 12:55:42,843 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 12:55:42,857 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 12:55:42,857 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 12:55:42,858 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 12:55:42,860 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 12:55:42,861 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 12:55:42,863 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 12:55:42,864 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 12:55:42,865 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 12:55:42,865 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 12:55:42,866 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 12:55:42,867 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 12:55:42,868 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 12:55:42,869 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 12:55:42,870 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 12:55:42,872 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 12:55:42,873 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 12:55:42,875 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 12:55:42,876 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 12:55:42,877 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 12:55:42,880 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 12:55:42,880 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 12:55:42,880 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 12:55:42,881 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 12:55:42,882 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 12:55:42,883 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 12:55:42,884 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 12:55:42,886 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 12:55:42,886 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 12:55:42,887 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 12:55:42,892 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 12:55:42,893 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 12:55:42,894 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 12:55:42,895 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 12:55:42,895 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 12:55:42,929 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 12:55:42,929 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 12:55:42,930 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 12:55:42,930 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 12:55:42,930 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 12:55:42,933 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 12:55:42,934 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 12:55:42,934 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 12:55:42,934 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 12:55:42,934 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 12:55:42,935 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 12:55:42,935 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 12:55:42,938 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 12:55:42,938 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 12:55:42,938 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 12:55:42,938 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 12:55:42,939 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 12:55:42,939 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 12:55:42,939 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 12:55:42,939 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 12:55:42,939 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 12:55:42,940 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 12:55:42,940 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 12:55:42,940 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 12:55:42,940 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 12:55:42,942 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 12:55:42,942 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 12:55:42,942 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 12:55:42,943 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 12:55:42,943 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 12:55:42,943 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 12:55:42,943 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 12:55:42,944 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 12:55:42,944 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 12:55:43,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 12:55:43,024 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 12:55:43,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 12:55:43,032 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 12:55:43,032 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 12:55:43,033 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label53_true-unreach-call.c [2018-09-19 12:55:43,404 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec4c157bc/ed47cdcc20af4cf8986ed4677926c062/FLAG63d69c4ee [2018-09-19 12:55:43,899 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 12:55:43,900 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label53_true-unreach-call.c [2018-09-19 12:55:43,932 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec4c157bc/ed47cdcc20af4cf8986ed4677926c062/FLAG63d69c4ee [2018-09-19 12:55:43,949 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec4c157bc/ed47cdcc20af4cf8986ed4677926c062 [2018-09-19 12:55:43,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 12:55:43,964 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 12:55:43,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 12:55:43,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 12:55:43,974 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 12:55:43,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:55:43" (1/1) ... [2018-09-19 12:55:43,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5721ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:43, skipping insertion in model container [2018-09-19 12:55:43,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:55:43" (1/1) ... [2018-09-19 12:55:43,993 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 12:55:45,460 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:55:45,482 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 12:55:46,222 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:55:46,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:46 WrapperNode [2018-09-19 12:55:46,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 12:55:46,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 12:55:46,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 12:55:46,591 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 12:55:46,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:46" (1/1) ... [2018-09-19 12:55:46,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:46" (1/1) ... [2018-09-19 12:55:46,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 12:55:46,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 12:55:46,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 12:55:46,898 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 12:55:47,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:46" (1/1) ... [2018-09-19 12:55:47,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:46" (1/1) ... [2018-09-19 12:55:47,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:46" (1/1) ... [2018-09-19 12:55:47,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:46" (1/1) ... [2018-09-19 12:55:47,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:46" (1/1) ... [2018-09-19 12:55:48,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:46" (1/1) ... [2018-09-19 12:55:48,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:46" (1/1) ... [2018-09-19 12:55:48,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 12:55:48,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 12:55:48,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 12:55:48,165 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 12:55:48,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:46" (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 12:55:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 12:55:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 12:55:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 12:55:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 12:55:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 12:55:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 12:55:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 12:55:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 12:55:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 12:55:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 12:55:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 12:55:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 12:55:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 12:55:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 12:55:58,753 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 12:55:58,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:55:58 BoogieIcfgContainer [2018-09-19 12:55:58,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 12:55:58,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 12:55:58,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 12:55:58,759 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 12:55:58,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 12:55:43" (1/3) ... [2018-09-19 12:55:58,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545f8a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:55:58, skipping insertion in model container [2018-09-19 12:55:58,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:55:46" (2/3) ... [2018-09-19 12:55:58,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545f8a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:55:58, skipping insertion in model container [2018-09-19 12:55:58,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:55:58" (3/3) ... [2018-09-19 12:55:58,767 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label53_true-unreach-call.c [2018-09-19 12:55:58,779 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 12:55:58,796 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 12:55:58,897 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 12:55:58,898 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 12:55:58,898 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 12:55:58,898 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 12:55:58,898 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 12:55:58,899 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 12:55:58,899 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 12:55:58,899 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 12:55:58,899 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 12:55:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-19 12:55:58,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-19 12:55:58,971 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:55:58,972 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] [2018-09-19 12:55:58,974 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:55:58,979 INFO L82 PathProgramCache]: Analyzing trace with hash 403353444, now seen corresponding path program 1 times [2018-09-19 12:55:58,982 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:55:58,983 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 39 with the following transitions: [2018-09-19 12:55:58,986 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], [2831], [2833], [4242], [4246], [4252], [4256], [4269], [4270], [4271], [4273] [2018-09-19 12:55:59,040 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:55:59,041 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:55:59,337 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:55:59,339 INFO L272 AbstractInterpreter]: Visited 37 different actions 37 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 12:55:59,399 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:55:59,634 INFO L232 lantSequenceWeakener]: Weakened 35 states. On average, predicates are now at 71.95% of their original sizes. [2018-09-19 12:55:59,637 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:55:59,811 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:55:59,812 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:55:59,813 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 12:55:59,813 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:55:59,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 12:55:59,825 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 12:55:59,826 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:55:59,829 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-09-19 12:56:19,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:56:19,878 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-09-19 12:56:19,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 12:56:19,882 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2018-09-19 12:56:19,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:56:19,923 INFO L225 Difference]: With dead ends: 3044 [2018-09-19 12:56:19,923 INFO L226 Difference]: Without dead ends: 1922 [2018-09-19 12:56:19,933 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:56:19,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-09-19 12:56:20,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-09-19 12:56:20,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-09-19 12:56:20,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-09-19 12:56:20,110 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 38 [2018-09-19 12:56:20,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:56:20,110 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-09-19 12:56:20,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 12:56:20,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-09-19 12:56:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-09-19 12:56:20,117 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:56:20,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:56:20,118 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:56:20,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1702131544, now seen corresponding path program 1 times [2018-09-19 12:56:20,119 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:56:20,119 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 140 with the following transitions: [2018-09-19 12:56:20,120 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], [2831], [2833], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [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 12:56:20,132 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:56:20,132 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:56:20,621 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:56:20,622 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 12:56:20,663 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:56:20,989 INFO L232 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 71.18% of their original sizes. [2018-09-19 12:56:20,989 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:56:21,777 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:56:21,777 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:56:21,778 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:56:21,778 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:56:21,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:56:21,779 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:56:21,780 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:56:21,781 INFO L87 Difference]: Start difference. First operand 1920 states and 2831 transitions. Second operand 10 states. [2018-09-19 12:56:45,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:56:45,223 INFO L93 Difference]: Finished difference Result 3841 states and 6447 transitions. [2018-09-19 12:56:45,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:56:45,230 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 139 [2018-09-19 12:56:45,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:56:45,244 INFO L225 Difference]: With dead ends: 3841 [2018-09-19 12:56:45,244 INFO L226 Difference]: Without dead ends: 2731 [2018-09-19 12:56:45,249 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:56:45,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2018-09-19 12:56:45,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2726. [2018-09-19 12:56:45,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2018-09-19 12:56:45,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3662 transitions. [2018-09-19 12:56:45,316 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3662 transitions. Word has length 139 [2018-09-19 12:56:45,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:56:45,317 INFO L480 AbstractCegarLoop]: Abstraction has 2726 states and 3662 transitions. [2018-09-19 12:56:45,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:56:45,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3662 transitions. [2018-09-19 12:56:45,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-09-19 12:56:45,322 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:56:45,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:56:45,322 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:56:45,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1693162399, now seen corresponding path program 1 times [2018-09-19 12:56:45,323 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:56:45,323 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2018-09-19 12:56:45,324 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], [2831], [2833], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [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 12:56:45,330 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:56:45,330 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:56:45,575 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:56:45,986 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:56:45,987 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 12:56:46,018 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:56:46,402 INFO L232 lantSequenceWeakener]: Weakened 165 states. On average, predicates are now at 71.12% of their original sizes. [2018-09-19 12:56:46,403 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:56:47,160 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:56:47,161 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:56:47,161 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:56:47,161 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:56:47,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:56:47,163 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:56:47,163 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:56:47,163 INFO L87 Difference]: Start difference. First operand 2726 states and 3662 transitions. Second operand 10 states. [2018-09-19 12:57:06,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:57:06,152 INFO L93 Difference]: Finished difference Result 4658 states and 7291 transitions. [2018-09-19 12:57:06,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:57:06,156 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 168 [2018-09-19 12:57:06,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:57:06,180 INFO L225 Difference]: With dead ends: 4658 [2018-09-19 12:57:06,181 INFO L226 Difference]: Without dead ends: 3548 [2018-09-19 12:57:06,186 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 174 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:57:06,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3548 states. [2018-09-19 12:57:06,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3542. [2018-09-19 12:57:06,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3542 states. [2018-09-19 12:57:06,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 4500 transitions. [2018-09-19 12:57:06,286 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 4500 transitions. Word has length 168 [2018-09-19 12:57:06,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:57:06,289 INFO L480 AbstractCegarLoop]: Abstraction has 3542 states and 4500 transitions. [2018-09-19 12:57:06,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:57:06,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 4500 transitions. [2018-09-19 12:57:06,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-09-19 12:57:06,301 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:57:06,301 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:57:06,303 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:57:06,303 INFO L82 PathProgramCache]: Analyzing trace with hash -810060092, now seen corresponding path program 1 times [2018-09-19 12:57:06,303 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:57:06,303 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-09-19 12:57:06,304 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], [2831], [2833], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [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 12:57:06,313 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:57:06,313 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:57:06,497 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:57:06,725 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:57:06,725 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 12:57:06,766 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:57:07,218 INFO L232 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 71.08% of their original sizes. [2018-09-19 12:57:07,219 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:57:07,600 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:57:07,601 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:57:07,601 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:57:07,601 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:57:07,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:57:07,602 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:57:07,602 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:57:07,603 INFO L87 Difference]: Start difference. First operand 3542 states and 4500 transitions. Second operand 10 states. [2018-09-19 12:57:28,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:57:28,686 INFO L93 Difference]: Finished difference Result 6286 states and 8969 transitions. [2018-09-19 12:57:28,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:57:28,687 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 233 [2018-09-19 12:57:28,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:57:28,707 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 12:57:28,707 INFO L226 Difference]: Without dead ends: 4360 [2018-09-19 12:57:28,714 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:57:28,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2018-09-19 12:57:28,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 4349. [2018-09-19 12:57:28,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4349 states. [2018-09-19 12:57:28,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4349 states to 4349 states and 5346 transitions. [2018-09-19 12:57:28,829 INFO L78 Accepts]: Start accepts. Automaton has 4349 states and 5346 transitions. Word has length 233 [2018-09-19 12:57:28,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:57:28,830 INFO L480 AbstractCegarLoop]: Abstraction has 4349 states and 5346 transitions. [2018-09-19 12:57:28,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:57:28,831 INFO L276 IsEmpty]: Start isEmpty. Operand 4349 states and 5346 transitions. [2018-09-19 12:57:28,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2018-09-19 12:57:28,835 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:57:28,836 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:57:28,836 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:57:28,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1521103020, now seen corresponding path program 1 times [2018-09-19 12:57:28,836 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:57:28,837 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 246 with the following transitions: [2018-09-19 12:57:28,837 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], [2831], [2833], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [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 12:57:28,843 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:57:28,843 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:57:29,006 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:57:29,265 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:57:29,265 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 12:57:29,291 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:57:29,647 INFO L232 lantSequenceWeakener]: Weakened 242 states. On average, predicates are now at 71.06% of their original sizes. [2018-09-19 12:57:29,647 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:57:29,814 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:57:29,815 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:57:29,815 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:57:29,815 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:57:29,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:57:29,816 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:57:29,816 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:57:29,816 INFO L87 Difference]: Start difference. First operand 4349 states and 5346 transitions. Second operand 10 states. [2018-09-19 12:57:44,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:57:44,602 INFO L93 Difference]: Finished difference Result 7115 states and 9845 transitions. [2018-09-19 12:57:44,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 12:57:44,614 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 245 [2018-09-19 12:57:44,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:57:44,635 INFO L225 Difference]: With dead ends: 7115 [2018-09-19 12:57:44,635 INFO L226 Difference]: Without dead ends: 5189 [2018-09-19 12:57:44,649 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 252 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:57:44,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5189 states. [2018-09-19 12:57:44,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5189 to 5167. [2018-09-19 12:57:44,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5167 states. [2018-09-19 12:57:44,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 6284 transitions. [2018-09-19 12:57:44,767 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 6284 transitions. Word has length 245 [2018-09-19 12:57:44,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:57:44,768 INFO L480 AbstractCegarLoop]: Abstraction has 5167 states and 6284 transitions. [2018-09-19 12:57:44,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:57:44,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 6284 transitions. [2018-09-19 12:57:44,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-09-19 12:57:44,773 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:57:44,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:57:44,774 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:57:44,774 INFO L82 PathProgramCache]: Analyzing trace with hash -2060875028, now seen corresponding path program 1 times [2018-09-19 12:57:44,774 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:57:44,774 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 262 with the following transitions: [2018-09-19 12:57:44,775 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], [2831], [2833], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [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 12:57:44,782 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:57:44,783 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:57:45,032 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:57:45,522 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:57:45,522 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 12:57:45,553 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:57:45,957 INFO L232 lantSequenceWeakener]: Weakened 258 states. On average, predicates are now at 71.02% of their original sizes. [2018-09-19 12:57:45,958 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:57:46,083 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:57:46,084 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:57:46,084 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:57:46,084 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:57:46,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:57:46,085 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:57:46,085 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:57:46,086 INFO L87 Difference]: Start difference. First operand 5167 states and 6284 transitions. Second operand 10 states. [2018-09-19 12:58:02,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:58:02,009 INFO L93 Difference]: Finished difference Result 9545 states and 12511 transitions. [2018-09-19 12:58:02,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:58:02,011 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 261 [2018-09-19 12:58:02,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:58:02,031 INFO L225 Difference]: With dead ends: 9545 [2018-09-19 12:58:02,031 INFO L226 Difference]: Without dead ends: 6800 [2018-09-19 12:58:02,037 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 267 GetRequests, 252 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 12:58:02,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6800 states. [2018-09-19 12:58:02,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6800 to 6794. [2018-09-19 12:58:02,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6794 states. [2018-09-19 12:58:02,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 7947 transitions. [2018-09-19 12:58:02,163 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 7947 transitions. Word has length 261 [2018-09-19 12:58:02,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:58:02,164 INFO L480 AbstractCegarLoop]: Abstraction has 6794 states and 7947 transitions. [2018-09-19 12:58:02,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:58:02,164 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 7947 transitions. [2018-09-19 12:58:02,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2018-09-19 12:58:02,169 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:58:02,169 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:58:02,169 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:58:02,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1282883755, now seen corresponding path program 1 times [2018-09-19 12:58:02,170 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:58:02,170 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 270 with the following transitions: [2018-09-19 12:58:02,170 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], [2831], [2833], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [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 12:58:02,173 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:58:02,174 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:58:02,299 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:58:02,690 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:58:02,690 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 12:58:02,716 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:58:03,107 INFO L232 lantSequenceWeakener]: Weakened 266 states. On average, predicates are now at 71.04% of their original sizes. [2018-09-19 12:58:03,108 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:58:03,290 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:58:03,290 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:58:03,290 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:58:03,290 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:58:03,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:58:03,291 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:58:03,291 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:58:03,292 INFO L87 Difference]: Start difference. First operand 6794 states and 7947 transitions. Second operand 10 states. [2018-09-19 12:58:17,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:58:17,222 INFO L93 Difference]: Finished difference Result 13654 states and 16856 transitions. [2018-09-19 12:58:17,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:58:17,223 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 269 [2018-09-19 12:58:17,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:58:17,247 INFO L225 Difference]: With dead ends: 13654 [2018-09-19 12:58:17,247 INFO L226 Difference]: Without dead ends: 9279 [2018-09-19 12:58:17,258 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 276 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:58:17,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9279 states. [2018-09-19 12:58:17,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9279 to 9252. [2018-09-19 12:58:17,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9252 states. [2018-09-19 12:58:17,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9252 states to 9252 states and 10537 transitions. [2018-09-19 12:58:17,425 INFO L78 Accepts]: Start accepts. Automaton has 9252 states and 10537 transitions. Word has length 269 [2018-09-19 12:58:17,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:58:17,426 INFO L480 AbstractCegarLoop]: Abstraction has 9252 states and 10537 transitions. [2018-09-19 12:58:17,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:58:17,426 INFO L276 IsEmpty]: Start isEmpty. Operand 9252 states and 10537 transitions. [2018-09-19 12:58:17,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-09-19 12:58:17,433 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:58:17,433 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:58:17,433 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:58:17,434 INFO L82 PathProgramCache]: Analyzing trace with hash -2147310576, now seen corresponding path program 1 times [2018-09-19 12:58:17,434 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:58:17,434 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 312 with the following transitions: [2018-09-19 12:58:17,434 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], [2831], [2833], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [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 12:58:17,437 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:58:17,437 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:58:17,596 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:58:19,025 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:58:19,025 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 12:58:19,061 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:58:19,689 INFO L232 lantSequenceWeakener]: Weakened 308 states. On average, predicates are now at 71.04% of their original sizes. [2018-09-19 12:58:19,689 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:58:19,797 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:58:19,797 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:58:19,797 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:58:19,798 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:58:19,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:58:19,798 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:58:19,798 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:58:19,799 INFO L87 Difference]: Start difference. First operand 9252 states and 10537 transitions. Second operand 10 states. [2018-09-19 12:58:39,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:58:39,531 INFO L93 Difference]: Finished difference Result 15294 states and 18522 transitions. [2018-09-19 12:58:39,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:58:39,532 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 311 [2018-09-19 12:58:39,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:58:39,556 INFO L225 Difference]: With dead ends: 15294 [2018-09-19 12:58:39,556 INFO L226 Difference]: Without dead ends: 10085 [2018-09-19 12:58:39,566 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 317 GetRequests, 302 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 12:58:39,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10085 states. [2018-09-19 12:58:39,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10085 to 10061. [2018-09-19 12:58:39,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10061 states. [2018-09-19 12:58:39,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 11413 transitions. [2018-09-19 12:58:39,734 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 11413 transitions. Word has length 311 [2018-09-19 12:58:39,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:58:39,735 INFO L480 AbstractCegarLoop]: Abstraction has 10061 states and 11413 transitions. [2018-09-19 12:58:39,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:58:39,735 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 11413 transitions. [2018-09-19 12:58:39,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2018-09-19 12:58:39,742 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:58:39,742 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:58:39,743 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:58:39,743 INFO L82 PathProgramCache]: Analyzing trace with hash 914189372, now seen corresponding path program 1 times [2018-09-19 12:58:39,743 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:58:39,743 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 322 with the following transitions: [2018-09-19 12:58:39,744 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], [2831], [2833], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [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 12:58:39,746 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:58:39,747 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:58:39,902 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:58:40,327 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:58:40,328 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 12:58:40,356 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:58:40,828 INFO L232 lantSequenceWeakener]: Weakened 318 states. On average, predicates are now at 71.04% of their original sizes. [2018-09-19 12:58:40,829 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:58:41,631 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:58:41,632 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:58:41,632 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:58:41,632 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:58:41,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:58:41,633 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:58:41,633 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:58:41,633 INFO L87 Difference]: Start difference. First operand 10061 states and 11413 transitions. Second operand 10 states. [2018-09-19 12:59:02,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:59:02,365 INFO L93 Difference]: Finished difference Result 17756 states and 21202 transitions. [2018-09-19 12:59:02,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 12:59:02,365 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 321 [2018-09-19 12:59:02,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:59:02,397 INFO L225 Difference]: With dead ends: 17756 [2018-09-19 12:59:02,398 INFO L226 Difference]: Without dead ends: 11734 [2018-09-19 12:59:02,628 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 328 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 12:59:02,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2018-09-19 12:59:02,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11704. [2018-09-19 12:59:02,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11704 states. [2018-09-19 12:59:02,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11704 states to 11704 states and 13240 transitions. [2018-09-19 12:59:02,842 INFO L78 Accepts]: Start accepts. Automaton has 11704 states and 13240 transitions. Word has length 321 [2018-09-19 12:59:02,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:59:02,843 INFO L480 AbstractCegarLoop]: Abstraction has 11704 states and 13240 transitions. [2018-09-19 12:59:02,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:59:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 11704 states and 13240 transitions. [2018-09-19 12:59:02,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-09-19 12:59:02,852 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:59:02,852 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 12:59:02,852 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:59:02,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1581578539, now seen corresponding path program 1 times [2018-09-19 12:59:02,853 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:59:02,853 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 337 with the following transitions: [2018-09-19 12:59:02,853 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], [2831], [2833], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [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 12:59:02,857 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:59:02,857 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:59:03,011 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:59:03,372 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:59:03,373 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 12:59:03,410 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:59:03,894 INFO L232 lantSequenceWeakener]: Weakened 333 states. On average, predicates are now at 71.09% of their original sizes. [2018-09-19 12:59:03,894 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:59:04,409 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:59:04,409 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:59:04,409 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 12:59:04,409 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:59:04,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 12:59:04,410 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 12:59:04,410 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-09-19 12:59:04,411 INFO L87 Difference]: Start difference. First operand 11704 states and 13240 transitions. Second operand 12 states. Received shutdown request... [2018-09-19 12:59:43,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-19 12:59:43,444 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 12:59:43,451 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 12:59:43,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 12:59:43 BoogieIcfgContainer [2018-09-19 12:59:43,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 12:59:43,452 INFO L168 Benchmark]: Toolchain (without parser) took 239491.48 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 588.2 MB. Max. memory is 7.1 GB. [2018-09-19 12:59:43,454 INFO L168 Benchmark]: CDTParser took 0.22 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 12:59:43,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2624.44 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: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:59:43,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 306.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:59:43,456 INFO L168 Benchmark]: Boogie Preprocessor took 1267.01 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 998.8 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:59:43,457 INFO L168 Benchmark]: RCFGBuilder took 10589.72 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 163.6 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -5.3 MB). Peak memory consumption was 754.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:59:43,458 INFO L168 Benchmark]: TraceAbstraction took 224695.97 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: -837.2 MB). Peak memory consumption was 369.7 MB. Max. memory is 7.1 GB. [2018-09-19 12:59:43,463 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2624.44 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: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 306.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1267.01 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 998.8 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10589.72 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 163.6 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -5.3 MB). Peak memory consumption was 754.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224695.97 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: -837.2 MB). Peak memory consumption was 369.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 105). Cancelled while BasicCegarLoop was constructing difference of abstraction (11704states) and FLOYD_HOARE automaton (currently 37 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (17224 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 224.5s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 208.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12062 SDtfs, 25815 SDslu, 10298 SDs, 0 SdLazy, 122491 SolverSat, 8938 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 181.0s Time, PredicateUnifierStatistics: 20 DeclaredPredicates, 2396 GetRequests, 2233 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11704occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.6s AbstIntTime, 10 AbstIntIterations, 10 AbstIntStrong, 0.9972431870489373 AbsIntWeakeningRatio, 0.11293812202509736 AbsIntAvgWeakeningVarsNumRemoved, 23.193422760709648 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 133 StatesRemovedByMinimization, 9 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_label53_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_12-59-43-478.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label53_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_12-59-43-478.csv Completed graceful shutdown