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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:28:23,814 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:28:23,817 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:28:23,830 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:28:23,830 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:28:23,831 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:28:23,832 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:28:23,837 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:28:23,838 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:28:23,839 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:28:23,840 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:28:23,840 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:28:23,842 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:28:23,843 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:28:23,846 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:28:23,847 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:28:23,848 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:28:23,849 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:28:23,851 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:28:23,853 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:28:23,854 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:28:23,855 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:28:23,857 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 15:28:23,858 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 15:28:23,858 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 15:28:23,859 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 15:28:23,860 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 15:28:23,861 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 15:28:23,861 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 15:28:23,863 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 15:28:23,863 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 15:28:23,863 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 15:28:23,864 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:28:23,864 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:28:23,865 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:28:23,866 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:28:23,866 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 15:28:23,895 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:28:23,897 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:28:23,898 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:28:23,899 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:28:23,899 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:28:23,899 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:28:23,899 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 15:28:23,899 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:28:23,900 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:28:23,900 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 15:28:23,900 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:28:23,900 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:28:23,901 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:28:23,901 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:28:23,901 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:28:23,901 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:28:23,902 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:28:23,902 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:28:23,902 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:28:23,903 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:28:23,903 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:28:23,903 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:28:23,903 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:28:23,903 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:28:23,903 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:28:23,904 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:28:23,904 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:28:23,904 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:28:23,904 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:28:23,905 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:28:23,905 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:28:23,905 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:28:23,905 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:28:23,906 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:28:23,979 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:28:23,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:28:23,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:28:23,999 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:28:23,999 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:28:24,000 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label45_true-unreach-call.c [2018-09-15 15:28:24,366 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4298a39c/f2f2f5f2a3c6443080df3300e5ff6e2c/FLAGe905549cf [2018-09-15 15:28:24,814 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:28:24,816 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label45_true-unreach-call.c [2018-09-15 15:28:24,848 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4298a39c/f2f2f5f2a3c6443080df3300e5ff6e2c/FLAGe905549cf [2018-09-15 15:28:24,872 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4298a39c/f2f2f5f2a3c6443080df3300e5ff6e2c [2018-09-15 15:28:24,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:28:24,894 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:28:24,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:28:24,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:28:24,902 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:28:24,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:28:24" (1/1) ... [2018-09-15 15:28:24,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e23d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:24, skipping insertion in model container [2018-09-15 15:28:24,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:28:24" (1/1) ... [2018-09-15 15:28:24,922 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:28:25,915 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:28:25,936 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:28:26,361 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:28:26,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:26 WrapperNode [2018-09-15 15:28:26,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:28:26,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:28:26,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:28:26,577 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:28:26,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:26" (1/1) ... [2018-09-15 15:28:26,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:26" (1/1) ... [2018-09-15 15:28:26,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:28:26,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:28:26,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:28:26,890 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:28:27,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:26" (1/1) ... [2018-09-15 15:28:27,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:26" (1/1) ... [2018-09-15 15:28:27,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:26" (1/1) ... [2018-09-15 15:28:27,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:26" (1/1) ... [2018-09-15 15:28:27,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:26" (1/1) ... [2018-09-15 15:28:27,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:26" (1/1) ... [2018-09-15 15:28:27,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:26" (1/1) ... [2018-09-15 15:28:27,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:28:27,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:28:27,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:28:27,852 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:28:27,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:28:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:28:27,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:28:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 15:28:27,928 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 15:28:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 15:28:27,928 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 15:28:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:28:27,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:28:27,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:28:27,929 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:28:40,805 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:28:40,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:28:40 BoogieIcfgContainer [2018-09-15 15:28:40,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:28:40,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:28:40,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:28:40,812 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:28:40,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:28:24" (1/3) ... [2018-09-15 15:28:40,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6aa2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:28:40, skipping insertion in model container [2018-09-15 15:28:40,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:28:26" (2/3) ... [2018-09-15 15:28:40,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6aa2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:28:40, skipping insertion in model container [2018-09-15 15:28:40,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:28:40" (3/3) ... [2018-09-15 15:28:40,816 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label45_true-unreach-call.c [2018-09-15 15:28:40,826 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:28:40,836 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:28:40,898 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:28:40,899 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:28:40,899 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:28:40,899 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:28:40,900 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:28:40,900 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:28:40,900 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:28:40,900 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:28:40,900 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:28:40,935 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-15 15:28:40,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-09-15 15:28:40,945 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:28:40,947 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] [2018-09-15 15:28:40,948 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:28:40,953 INFO L82 PathProgramCache]: Analyzing trace with hash 363269502, now seen corresponding path program 1 times [2018-09-15 15:28:40,955 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:28:40,956 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 58 with the following transitions: [2018-09-15 15:28:40,959 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1066], [1068], [2283], [2287], [2293], [2297], [2306], [2307], [2308], [2310] [2018-09-15 15:28:41,002 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:28:41,002 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:28:42,502 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:28:42,503 INFO L272 AbstractInterpreter]: Visited 56 different actions 56 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 15:28:42,558 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:28:43,470 INFO L232 lantSequenceWeakener]: Weakened 54 states. On average, predicates are now at 77.48% of their original sizes. [2018-09-15 15:28:43,470 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:28:43,734 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:28:43,735 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:28:43,736 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 15:28:43,736 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:28:43,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 15:28:43,749 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 15:28:43,749 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:28:43,752 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-09-15 15:28:55,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:28:55,225 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-09-15 15:28:55,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 15:28:55,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-09-15 15:28:55,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:28:55,256 INFO L225 Difference]: With dead ends: 1642 [2018-09-15 15:28:55,257 INFO L226 Difference]: Without dead ends: 1036 [2018-09-15 15:28:55,268 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:28:55,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-09-15 15:28:55,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-09-15 15:28:55,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-09-15 15:28:55,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-09-15 15:28:55,388 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 57 [2018-09-15 15:28:55,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:28:55,388 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-09-15 15:28:55,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 15:28:55,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-09-15 15:28:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-09-15 15:28:55,401 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:28:55,401 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:28:55,402 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:28:55,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1635183703, now seen corresponding path program 1 times [2018-09-15 15:28:55,402 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:28:55,403 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-09-15 15:28:55,404 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1066], [1068], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:28:55,413 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:28:55,413 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:28:57,484 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:28:59,818 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:28:59,818 INFO L272 AbstractInterpreter]: Visited 82 different actions 157 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 15:28:59,857 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:29:02,800 INFO L232 lantSequenceWeakener]: Weakened 129 states. On average, predicates are now at 76.13% of their original sizes. [2018-09-15 15:29:02,800 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:29:03,015 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:29:03,016 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:29:03,016 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 15:29:03,016 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:29:03,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 15:29:03,018 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 15:29:03,018 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 15:29:03,018 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 11 states. [2018-09-15 15:29:15,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:29:15,380 INFO L93 Difference]: Finished difference Result 2502 states and 4301 transitions. [2018-09-15 15:29:15,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 15:29:15,382 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 132 [2018-09-15 15:29:15,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:29:15,393 INFO L225 Difference]: With dead ends: 2502 [2018-09-15 15:29:15,394 INFO L226 Difference]: Without dead ends: 1908 [2018-09-15 15:29:15,398 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 138 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 15:29:15,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2018-09-15 15:29:15,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1905. [2018-09-15 15:29:15,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1905 states. [2018-09-15 15:29:15,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2402 transitions. [2018-09-15 15:29:15,458 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2402 transitions. Word has length 132 [2018-09-15 15:29:15,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:29:15,459 INFO L480 AbstractCegarLoop]: Abstraction has 1905 states and 2402 transitions. [2018-09-15 15:29:15,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 15:29:15,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2402 transitions. [2018-09-15 15:29:15,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-15 15:29:15,463 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:29:15,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:29:15,464 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:29:15,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1155801617, now seen corresponding path program 1 times [2018-09-15 15:29:15,464 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:29:15,465 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-09-15 15:29:15,465 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1066], [1068], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:29:15,469 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:29:15,469 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:29:18,808 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:29:27,289 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:29:27,289 INFO L272 AbstractInterpreter]: Visited 95 different actions 184 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 15:29:27,298 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:29:36,353 INFO L232 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 76.03% of their original sizes. [2018-09-15 15:29:36,354 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:29:36,486 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:29:36,487 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:29:36,487 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 15:29:36,487 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:29:36,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 15:29:36,488 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 15:29:36,488 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 15:29:36,489 INFO L87 Difference]: Start difference. First operand 1905 states and 2402 transitions. Second operand 11 states. [2018-09-15 15:29:49,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:29:49,641 INFO L93 Difference]: Finished difference Result 2938 states and 4330 transitions. [2018-09-15 15:29:49,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 15:29:49,644 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 145 [2018-09-15 15:29:49,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:29:49,657 INFO L225 Difference]: With dead ends: 2938 [2018-09-15 15:29:49,657 INFO L226 Difference]: Without dead ends: 2344 [2018-09-15 15:29:49,661 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 152 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-15 15:29:49,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2018-09-15 15:29:49,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 2341. [2018-09-15 15:29:49,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2341 states. [2018-09-15 15:29:49,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2341 states to 2341 states and 2853 transitions. [2018-09-15 15:29:49,724 INFO L78 Accepts]: Start accepts. Automaton has 2341 states and 2853 transitions. Word has length 145 [2018-09-15 15:29:49,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:29:49,725 INFO L480 AbstractCegarLoop]: Abstraction has 2341 states and 2853 transitions. [2018-09-15 15:29:49,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 15:29:49,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2341 states and 2853 transitions. [2018-09-15 15:29:49,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-09-15 15:29:49,730 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:29:49,731 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, 2, 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] [2018-09-15 15:29:49,731 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:29:49,732 INFO L82 PathProgramCache]: Analyzing trace with hash -2132149478, now seen corresponding path program 1 times [2018-09-15 15:29:49,732 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:29:49,732 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-09-15 15:29:49,732 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1066], [1068], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:29:49,736 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:29:49,736 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:29:51,146 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:30:19,657 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:30:19,658 INFO L272 AbstractInterpreter]: Visited 96 different actions 465 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 15:30:19,664 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:30:29,309 INFO L232 lantSequenceWeakener]: Weakened 217 states. On average, predicates are now at 75.72% of their original sizes. [2018-09-15 15:30:29,310 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:30:29,487 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:30:29,487 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:30:29,488 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 15:30:29,488 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:30:29,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 15:30:29,489 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 15:30:29,490 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-15 15:30:29,490 INFO L87 Difference]: Start difference. First operand 2341 states and 2853 transitions. Second operand 13 states. [2018-09-15 15:30:42,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:30:42,103 INFO L93 Difference]: Finished difference Result 3487 states and 4982 transitions. [2018-09-15 15:30:42,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 15:30:42,109 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 220 [2018-09-15 15:30:42,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:30:42,123 INFO L225 Difference]: With dead ends: 3487 [2018-09-15 15:30:42,123 INFO L226 Difference]: Without dead ends: 2893 [2018-09-15 15:30:42,127 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 231 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2018-09-15 15:30:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2018-09-15 15:30:42,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2888. [2018-09-15 15:30:42,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2888 states. [2018-09-15 15:30:42,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3487 transitions. [2018-09-15 15:30:42,201 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3487 transitions. Word has length 220 [2018-09-15 15:30:42,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:30:42,202 INFO L480 AbstractCegarLoop]: Abstraction has 2888 states and 3487 transitions. [2018-09-15 15:30:42,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-15 15:30:42,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3487 transitions. [2018-09-15 15:30:42,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-09-15 15:30:42,207 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:30:42,207 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 15:30:42,207 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:30:42,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1251140311, now seen corresponding path program 1 times [2018-09-15 15:30:42,208 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:30:42,208 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 233 with the following transitions: [2018-09-15 15:30:42,208 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1066], [1068], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:30:42,217 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:30:42,217 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:30:45,271 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:31:47,456 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:31:47,456 INFO L272 AbstractInterpreter]: Visited 96 different actions 280 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-15 15:31:47,462 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:32:09,227 INFO L232 lantSequenceWeakener]: Weakened 229 states. On average, predicates are now at 75.68% of their original sizes. [2018-09-15 15:32:09,228 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:32:09,324 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:32:09,324 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:32:09,324 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 15:32:09,324 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:32:09,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 15:32:09,325 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 15:32:09,325 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 15:32:09,325 INFO L87 Difference]: Start difference. First operand 2888 states and 3487 transitions. Second operand 10 states. [2018-09-15 15:32:22,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:32:22,320 INFO L93 Difference]: Finished difference Result 3924 states and 5421 transitions. [2018-09-15 15:32:22,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 15:32:22,321 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 232 [2018-09-15 15:32:22,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:32:22,337 INFO L225 Difference]: With dead ends: 3924 [2018-09-15 15:32:22,337 INFO L226 Difference]: Without dead ends: 3330 [2018-09-15 15:32:22,341 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 238 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-15 15:32:22,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2018-09-15 15:32:22,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3322. [2018-09-15 15:32:22,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3322 states. [2018-09-15 15:32:22,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3322 states to 3322 states and 3960 transitions. [2018-09-15 15:32:22,420 INFO L78 Accepts]: Start accepts. Automaton has 3322 states and 3960 transitions. Word has length 232 [2018-09-15 15:32:22,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:32:22,421 INFO L480 AbstractCegarLoop]: Abstraction has 3322 states and 3960 transitions. [2018-09-15 15:32:22,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 15:32:22,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3322 states and 3960 transitions. [2018-09-15 15:32:22,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2018-09-15 15:32:22,428 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:32:22,429 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, 3, 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] [2018-09-15 15:32:22,429 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:32:22,429 INFO L82 PathProgramCache]: Analyzing trace with hash 602471756, now seen corresponding path program 1 times [2018-09-15 15:32:22,430 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:32:22,430 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 308 with the following transitions: [2018-09-15 15:32:22,430 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1066], [1068], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:32:22,433 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:32:22,433 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:32:23,936 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown