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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label48_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 09:41:24,803 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 09:41:24,805 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 09:41:24,822 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 09:41:24,823 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 09:41:24,825 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 09:41:24,826 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 09:41:24,829 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 09:41:24,831 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 09:41:24,831 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 09:41:24,833 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 09:41:24,835 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 09:41:24,836 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 09:41:24,839 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 09:41:24,848 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 09:41:24,849 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 09:41:24,850 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 09:41:24,851 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 09:41:24,856 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 09:41:24,860 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 09:41:24,861 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 09:41:24,865 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 09:41:24,868 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 09:41:24,868 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 09:41:24,868 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 09:41:24,869 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 09:41:24,871 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 09:41:24,872 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 09:41:24,872 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 09:41:24,873 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 09:41:24,875 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 09:41:24,876 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 09:41:24,876 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 09:41:24,876 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 09:41:24,878 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 09:41:24,880 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 09:41:24,880 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 09:41:24,911 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 09:41:24,911 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 09:41:24,912 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 09:41:24,912 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 09:41:24,912 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 09:41:24,913 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 09:41:24,914 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 09:41:24,914 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 09:41:24,914 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 09:41:24,914 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 09:41:24,914 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 09:41:24,915 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 09:41:24,915 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 09:41:24,915 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 09:41:24,917 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 09:41:24,917 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 09:41:24,917 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 09:41:24,917 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 09:41:24,917 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 09:41:24,918 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 09:41:24,918 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 09:41:24,918 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 09:41:24,918 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 09:41:24,918 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 09:41:24,918 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 09:41:24,920 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 09:41:24,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:41:24,920 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 09:41:24,920 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 09:41:24,921 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 09:41:24,921 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 09:41:24,921 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 09:41:24,921 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 09:41:24,921 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 09:41:24,924 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 09:41:24,924 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 09:41:24,997 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 09:41:25,013 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 09:41:25,017 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 09:41:25,019 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 09:41:25,019 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 09:41:25,020 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label48_true-unreach-call.c [2018-11-07 09:41:25,097 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b660a0ec0/05afc23184e74d76863483570f3379d5/FLAGa90c6a8ff [2018-11-07 09:41:25,792 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 09:41:25,793 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label48_true-unreach-call.c [2018-11-07 09:41:25,824 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b660a0ec0/05afc23184e74d76863483570f3379d5/FLAGa90c6a8ff [2018-11-07 09:41:25,842 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b660a0ec0/05afc23184e74d76863483570f3379d5 [2018-11-07 09:41:25,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 09:41:25,858 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 09:41:25,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 09:41:25,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 09:41:25,865 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 09:41:25,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:41:25" (1/1) ... [2018-11-07 09:41:25,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae48c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:25, skipping insertion in model container [2018-11-07 09:41:25,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:41:25" (1/1) ... [2018-11-07 09:41:25,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 09:41:26,020 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 09:41:27,140 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:41:27,146 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 09:41:27,651 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:41:27,684 INFO L193 MainTranslator]: Completed translation [2018-11-07 09:41:27,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:27 WrapperNode [2018-11-07 09:41:27,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 09:41:27,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 09:41:27,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 09:41:27,687 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 09:41:27,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:27" (1/1) ... [2018-11-07 09:41:27,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:27" (1/1) ... [2018-11-07 09:41:28,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 09:41:28,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 09:41:28,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 09:41:28,010 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 09:41:28,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:27" (1/1) ... [2018-11-07 09:41:28,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:27" (1/1) ... [2018-11-07 09:41:28,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:27" (1/1) ... [2018-11-07 09:41:28,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:27" (1/1) ... [2018-11-07 09:41:28,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:27" (1/1) ... [2018-11-07 09:41:28,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:27" (1/1) ... [2018-11-07 09:41:28,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:27" (1/1) ... [2018-11-07 09:41:28,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 09:41:28,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 09:41:28,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 09:41:28,253 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 09:41:28,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:27" (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 [2018-11-07 09:41:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 09:41:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 09:41:28,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 09:41:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 09:41:28,329 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 09:41:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 09:41:28,329 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 09:41:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 09:41:28,330 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 09:41:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 09:41:28,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 09:41:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 09:41:28,331 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 09:41:36,766 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 09:41:36,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:41:36 BoogieIcfgContainer [2018-11-07 09:41:36,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 09:41:36,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 09:41:36,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 09:41:36,778 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 09:41:36,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:41:25" (1/3) ... [2018-11-07 09:41:36,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659f0a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:41:36, skipping insertion in model container [2018-11-07 09:41:36,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:41:27" (2/3) ... [2018-11-07 09:41:36,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659f0a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:41:36, skipping insertion in model container [2018-11-07 09:41:36,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:41:36" (3/3) ... [2018-11-07 09:41:36,783 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label48_true-unreach-call.c [2018-11-07 09:41:36,794 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 09:41:36,808 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 09:41:36,826 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 09:41:36,900 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 09:41:36,900 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 09:41:36,901 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 09:41:36,901 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 09:41:36,901 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 09:41:36,901 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 09:41:36,901 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 09:41:36,903 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 09:41:36,948 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 09:41:36,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-07 09:41:36,959 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:41:36,961 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:41:36,964 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:41:36,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:41:36,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1292644929, now seen corresponding path program 1 times [2018-11-07 09:41:36,975 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:41:37,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:41:37,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:41:37,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:41:37,046 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:41:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:41:37,496 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:41:37,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:41:37,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:41:37,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 09:41:37,648 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:41:37,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 09:41:37,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 09:41:37,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:41:37,675 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-11-07 09:41:44,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:41:44,548 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-11-07 09:41:44,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 09:41:44,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2018-11-07 09:41:44,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:41:44,579 INFO L225 Difference]: With dead ends: 2251 [2018-11-07 09:41:44,580 INFO L226 Difference]: Without dead ends: 1474 [2018-11-07 09:41:44,593 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:41:44,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-11-07 09:41:44,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-11-07 09:41:44,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-07 09:41:44,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-11-07 09:41:44,789 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 61 [2018-11-07 09:41:44,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:41:44,790 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-11-07 09:41:44,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 09:41:44,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-11-07 09:41:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-11-07 09:41:44,799 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:41:44,799 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:41:44,800 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:41:44,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:41:44,800 INFO L82 PathProgramCache]: Analyzing trace with hash -285110120, now seen corresponding path program 1 times [2018-11-07 09:41:44,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:41:44,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:41:44,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:41:44,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:41:44,802 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:41:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:41:45,127 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:41:45,127 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:41:45,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:41:45,128 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:41:45,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:41:45,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:41:45,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:41:45,131 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-11-07 09:41:53,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:41:53,539 INFO L93 Difference]: Finished difference Result 4416 states and 8482 transitions. [2018-11-07 09:41:53,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:41:53,540 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-11-07 09:41:53,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:41:53,563 INFO L225 Difference]: With dead ends: 4416 [2018-11-07 09:41:53,563 INFO L226 Difference]: Without dead ends: 2948 [2018-11-07 09:41:53,570 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:41:53,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2018-11-07 09:41:53,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2922. [2018-11-07 09:41:53,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2922 states. [2018-11-07 09:41:53,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 5419 transitions. [2018-11-07 09:41:53,688 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 5419 transitions. Word has length 151 [2018-11-07 09:41:53,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:41:53,689 INFO L480 AbstractCegarLoop]: Abstraction has 2922 states and 5419 transitions. [2018-11-07 09:41:53,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:41:53,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 5419 transitions. [2018-11-07 09:41:53,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-07 09:41:53,696 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:41:53,696 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:41:53,696 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:41:53,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:41:53,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1359936829, now seen corresponding path program 1 times [2018-11-07 09:41:53,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:41:53,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:41:53,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:41:53,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:41:53,698 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:41:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:41:53,890 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:41:53,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:41:53,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:41:53,891 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:41:53,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:41:53,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:41:53,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:41:53,893 INFO L87 Difference]: Start difference. First operand 2922 states and 5419 transitions. Second operand 6 states. [2018-11-07 09:42:04,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:42:04,832 INFO L93 Difference]: Finished difference Result 11793 states and 22898 transitions. [2018-11-07 09:42:04,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 09:42:04,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2018-11-07 09:42:04,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:42:04,910 INFO L225 Difference]: With dead ends: 11793 [2018-11-07 09:42:04,910 INFO L226 Difference]: Without dead ends: 8877 [2018-11-07 09:42:04,945 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:42:04,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2018-11-07 09:42:05,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 8802. [2018-11-07 09:42:05,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8802 states. [2018-11-07 09:42:05,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8802 states to 8802 states and 14072 transitions. [2018-11-07 09:42:05,253 INFO L78 Accepts]: Start accepts. Automaton has 8802 states and 14072 transitions. Word has length 152 [2018-11-07 09:42:05,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:42:05,254 INFO L480 AbstractCegarLoop]: Abstraction has 8802 states and 14072 transitions. [2018-11-07 09:42:05,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:42:05,254 INFO L276 IsEmpty]: Start isEmpty. Operand 8802 states and 14072 transitions. [2018-11-07 09:42:05,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-11-07 09:42:05,261 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:42:05,262 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 09:42:05,262 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:42:05,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:42:05,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1160234964, now seen corresponding path program 1 times [2018-11-07 09:42:05,263 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:42:05,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:42:05,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:42:05,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:42:05,264 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:42:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:42:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 108 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 09:42:05,566 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:42:05,566 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:42:05,567 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 223 with the following transitions: [2018-11-07 09:42:05,570 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2011], [2013], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 09:42:05,646 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:42:05,647 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:42:06,230 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:42:06,231 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 09:42:06,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:42:06,276 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:42:06,747 INFO L227 lantSequenceWeakener]: Weakened 213 states. On average, predicates are now at 78.23% of their original sizes. [2018-11-07 09:42:06,747 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:42:06,989 INFO L415 sIntCurrentIteration]: We unified 221 AI predicates to 221 [2018-11-07 09:42:06,990 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:42:06,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:42:06,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-11-07 09:42:06,991 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:42:06,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:42:06,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:42:06,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:42:06,993 INFO L87 Difference]: Start difference. First operand 8802 states and 14072 transitions. Second operand 6 states. [2018-11-07 09:42:54,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:42:54,160 INFO L93 Difference]: Finished difference Result 18303 states and 29044 transitions. [2018-11-07 09:42:54,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 09:42:54,160 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 222 [2018-11-07 09:42:54,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:42:54,211 INFO L225 Difference]: With dead ends: 18303 [2018-11-07 09:42:54,211 INFO L226 Difference]: Without dead ends: 9507 [2018-11-07 09:42:54,242 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 222 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 09:42:54,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9507 states. [2018-11-07 09:42:54,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9507 to 9505. [2018-11-07 09:42:54,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9505 states. [2018-11-07 09:42:54,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9505 states to 9505 states and 14784 transitions. [2018-11-07 09:42:54,496 INFO L78 Accepts]: Start accepts. Automaton has 9505 states and 14784 transitions. Word has length 222 [2018-11-07 09:42:54,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:42:54,496 INFO L480 AbstractCegarLoop]: Abstraction has 9505 states and 14784 transitions. [2018-11-07 09:42:54,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:42:54,497 INFO L276 IsEmpty]: Start isEmpty. Operand 9505 states and 14784 transitions. [2018-11-07 09:42:54,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2018-11-07 09:42:54,509 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:42:54,509 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:42:54,510 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:42:54,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:42:54,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1030070866, now seen corresponding path program 1 times [2018-11-07 09:42:54,511 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:42:54,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:42:54,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:42:54,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:42:54,512 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:42:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:42:55,070 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 09:42:55,581 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 221 proven. 167 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 09:42:55,582 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:42:55,582 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:42:55,582 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 410 with the following transitions: [2018-11-07 09:42:55,583 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2011], [2013], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 09:42:55,593 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:42:55,594 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:42:55,849 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:42:55,850 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 09:42:55,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:42:55,894 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:42:56,331 INFO L227 lantSequenceWeakener]: Weakened 406 states. On average, predicates are now at 77.84% of their original sizes. [2018-11-07 09:42:56,331 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:42:56,678 INFO L415 sIntCurrentIteration]: We unified 408 AI predicates to 408 [2018-11-07 09:42:56,678 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:42:56,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:42:56,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2018-11-07 09:42:56,680 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:42:56,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 09:42:56,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 09:42:56,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:42:56,681 INFO L87 Difference]: Start difference. First operand 9505 states and 14784 transitions. Second operand 10 states. [2018-11-07 09:44:36,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:44:36,030 INFO L93 Difference]: Finished difference Result 20420 states and 31584 transitions. [2018-11-07 09:44:36,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 09:44:36,030 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 409 [2018-11-07 09:44:36,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:44:36,069 INFO L225 Difference]: With dead ends: 20420 [2018-11-07 09:44:36,070 INFO L226 Difference]: Without dead ends: 11624 [2018-11-07 09:44:36,094 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 417 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-07 09:44:36,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11624 states. [2018-11-07 09:44:36,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11624 to 11619. [2018-11-07 09:44:36,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11619 states. [2018-11-07 09:44:36,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11619 states to 11619 states and 16946 transitions. [2018-11-07 09:44:36,319 INFO L78 Accepts]: Start accepts. Automaton has 11619 states and 16946 transitions. Word has length 409 [2018-11-07 09:44:36,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:44:36,320 INFO L480 AbstractCegarLoop]: Abstraction has 11619 states and 16946 transitions. [2018-11-07 09:44:36,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 09:44:36,320 INFO L276 IsEmpty]: Start isEmpty. Operand 11619 states and 16946 transitions. [2018-11-07 09:44:36,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 989 [2018-11-07 09:44:36,362 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:44:36,364 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:44:36,364 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:44:36,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:44:36,365 INFO L82 PathProgramCache]: Analyzing trace with hash -544587545, now seen corresponding path program 1 times [2018-11-07 09:44:36,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:44:36,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:44:36,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:44:36,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:44:36,366 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:44:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:44:37,118 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:44:38,468 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 112 proven. 451 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-11-07 09:44:38,469 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:44:38,469 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:44:38,469 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 989 with the following transitions: [2018-11-07 09:44:38,470 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [795], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2011], [2013], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-07 09:44:38,489 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:44:38,489 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:44:39,741 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:44:39,741 INFO L272 AbstractInterpreter]: Visited 538 different actions 2150 times. Merged at 10 different actions 34 times. Never widened. Found 6 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 09:44:39,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:44:39,750 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:44:39,750 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:44:39,750 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 09:44:39,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:44:39,760 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:44:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:44:40,062 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:44:41,104 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2018-11-07 09:44:41,104 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:44:42,225 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2018-11-07 09:44:42,247 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:44:42,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-11-07 09:44:42,248 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:44:42,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 09:44:42,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 09:44:42,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:44:42,250 INFO L87 Difference]: Start difference. First operand 11619 states and 16946 transitions. Second operand 3 states. [2018-11-07 09:44:46,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:44:46,805 INFO L93 Difference]: Finished difference Result 20415 states and 31074 transitions. [2018-11-07 09:44:46,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 09:44:46,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 988 [2018-11-07 09:44:46,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:44:46,866 INFO L225 Difference]: With dead ends: 20415 [2018-11-07 09:44:46,866 INFO L226 Difference]: Without dead ends: 11619 [2018-11-07 09:44:46,906 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1990 GetRequests, 1981 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:44:46,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11619 states. [2018-11-07 09:44:47,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11619 to 9472. [2018-11-07 09:44:47,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9472 states. [2018-11-07 09:44:47,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9472 states to 9472 states and 12161 transitions. [2018-11-07 09:44:47,151 INFO L78 Accepts]: Start accepts. Automaton has 9472 states and 12161 transitions. Word has length 988 [2018-11-07 09:44:47,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:44:47,152 INFO L480 AbstractCegarLoop]: Abstraction has 9472 states and 12161 transitions. [2018-11-07 09:44:47,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 09:44:47,153 INFO L276 IsEmpty]: Start isEmpty. Operand 9472 states and 12161 transitions. [2018-11-07 09:44:47,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2018-11-07 09:44:47,211 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:44:47,212 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:44:47,212 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:44:47,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:44:47,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1764693638, now seen corresponding path program 1 times [2018-11-07 09:44:47,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:44:47,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:44:47,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:44:47,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:44:47,215 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:44:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:44:48,507 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-07 09:44:48,785 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-07 09:44:50,335 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 550 proven. 208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:44:50,336 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:44:50,336 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:44:50,336 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1042 with the following transitions: [2018-11-07 09:44:50,337 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [795], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2011], [2013], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2412], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-07 09:44:50,352 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:44:50,352 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:44:51,910 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:44:51,910 INFO L272 AbstractInterpreter]: Visited 537 different actions 1614 times. Merged at 10 different actions 25 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 09:44:51,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:44:51,948 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:44:53,240 INFO L227 lantSequenceWeakener]: Weakened 1038 states. On average, predicates are now at 80.23% of their original sizes. [2018-11-07 09:44:53,240 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:44:53,650 INFO L415 sIntCurrentIteration]: We unified 1040 AI predicates to 1040 [2018-11-07 09:44:53,651 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:44:53,651 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:44:53,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [13] total 28 [2018-11-07 09:44:53,651 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:44:53,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 09:44:53,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 09:44:53,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-07 09:44:53,653 INFO L87 Difference]: Start difference. First operand 9472 states and 12161 transitions. Second operand 17 states. Received shutdown request... [2018-11-07 09:45:12,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 09:45:12,597 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 09:45:12,603 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 09:45:12,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:45:12 BoogieIcfgContainer [2018-11-07 09:45:12,604 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 09:45:12,605 INFO L168 Benchmark]: Toolchain (without parser) took 226748.04 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 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 794.1 MB. Max. memory is 7.1 GB. [2018-11-07 09:45:12,606 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-11-07 09:45:12,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1826.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-07 09:45:12,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 322.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 769.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -959.8 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 09:45:12,608 INFO L168 Benchmark]: Boogie Preprocessor took 243.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-11-07 09:45:12,609 INFO L168 Benchmark]: RCFGBuilder took 8514.74 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 513.0 MB). Peak memory consumption was 513.0 MB. Max. memory is 7.1 GB. [2018-11-07 09:45:12,610 INFO L168 Benchmark]: TraceAbstraction took 215828.95 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.2 GB in the end (delta: -1.5 GB). Peak memory consumption was 310.1 MB. Max. memory is 7.1 GB. [2018-11-07 09:45:12,615 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1826.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 322.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 769.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -959.8 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 243.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8514.74 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 513.0 MB). Peak memory consumption was 513.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215828.95 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.2 GB in the end (delta: -1.5 GB). Peak memory consumption was 310.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 171]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 171). Cancelled while BasicCegarLoop was constructing difference of abstraction (9472states) and FLOYD_HOARE automaton (currently 20 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (1705 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 215.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 196.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3348 SDtfs, 13853 SDslu, 1166 SDs, 0 SdLazy, 27738 SolverSat, 5500 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 139.3s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 3709 GetRequests, 3630 SyntacticMatches, 4 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11619occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.9s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9980707110494066 AbsIntWeakeningRatio, 0.06111443978430198 AbsIntAvgWeakeningVarsNumRemoved, 15.978430197723188 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 2255 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 4012 NumberOfCodeBlocks, 4012 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 4991 ConstructedInterpolants, 0 QuantifiedInterpolants, 12424546 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1276 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 2502/3393 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown