java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-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/Problem03_label30_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:19:06,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:19:06,075 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:19:06,088 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:19:06,088 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:19:06,089 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:19:06,091 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:19:06,093 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:19:06,094 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:19:06,095 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:19:06,096 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:19:06,096 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:19:06,097 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:19:06,098 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:19:06,099 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:19:06,100 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:19:06,101 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:19:06,104 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:19:06,108 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:19:06,109 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:19:06,111 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:19:06,112 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:19:06,114 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:19:06,115 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:19:06,115 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:19:06,116 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:19:06,117 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:19:06,118 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:19:06,118 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:19:06,120 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:19:06,120 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:19:06,120 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-27 06:19:06,123 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 06:19:06,152 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:19:06,152 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:19:06,153 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 06:19:06,154 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 06:19:06,155 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 06:19:06,155 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 06:19:06,155 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 06:19:06,155 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 06:19:06,155 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 06:19:06,156 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 06:19:06,156 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 06:19:06,156 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 06:19:06,156 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 06:19:06,156 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 06:19:06,158 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:19:06,158 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:19:06,158 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:19:06,159 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 06:19:06,159 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 06:19:06,159 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 06:19:06,159 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:19:06,159 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 06:19:06,160 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:19:06,161 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:19:06,162 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 06:19:06,162 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 06:19:06,162 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 06:19:06,162 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:19:06,162 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 06:19:06,163 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 06:19:06,163 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 06:19:06,163 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 06:19:06,164 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 06:19:06,164 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 06:19:06,164 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 06:19:06,164 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 06:19:06,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:19:06,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:19:06,230 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:19:06,232 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:19:06,233 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:19:06,233 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label30_true-unreach-call.c [2018-10-27 06:19:06,287 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f28dad33f/a24e9d8472e14def8f43e1756627ff54/FLAGcc646b13e [2018-10-27 06:19:06,963 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:19:06,964 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label30_true-unreach-call.c [2018-10-27 06:19:06,986 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f28dad33f/a24e9d8472e14def8f43e1756627ff54/FLAGcc646b13e [2018-10-27 06:19:07,009 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f28dad33f/a24e9d8472e14def8f43e1756627ff54 [2018-10-27 06:19:07,022 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:19:07,024 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 06:19:07,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:19:07,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:19:07,034 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:19:07,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:19:07" (1/1) ... [2018-10-27 06:19:07,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78ae13cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:07, skipping insertion in model container [2018-10-27 06:19:07,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:19:07" (1/1) ... [2018-10-27 06:19:07,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:19:07,138 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:19:07,842 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:19:07,849 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:19:08,117 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:19:08,140 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:19:08,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:08 WrapperNode [2018-10-27 06:19:08,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:19:08,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:19:08,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:19:08,142 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:19:08,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:08" (1/1) ... [2018-10-27 06:19:08,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:08" (1/1) ... [2018-10-27 06:19:08,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:19:08,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:19:08,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:19:08,466 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:19:08,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:08" (1/1) ... [2018-10-27 06:19:08,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:08" (1/1) ... [2018-10-27 06:19:08,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:08" (1/1) ... [2018-10-27 06:19:08,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:08" (1/1) ... [2018-10-27 06:19:08,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:08" (1/1) ... [2018-10-27 06:19:08,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:08" (1/1) ... [2018-10-27 06:19:08,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:08" (1/1) ... [2018-10-27 06:19:08,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:19:08,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:19:08,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:19:08,607 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:19:08,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 06:19:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 06:19:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 06:19:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 06:19:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 06:19:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:19:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:19:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 06:19:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 06:19:13,905 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:19:13,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:19:13 BoogieIcfgContainer [2018-10-27 06:19:13,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:19:13,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 06:19:13,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 06:19:13,912 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 06:19:13,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 06:19:07" (1/3) ... [2018-10-27 06:19:13,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fbcddab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:19:13, skipping insertion in model container [2018-10-27 06:19:13,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:08" (2/3) ... [2018-10-27 06:19:13,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fbcddab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:19:13, skipping insertion in model container [2018-10-27 06:19:13,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:19:13" (3/3) ... [2018-10-27 06:19:13,917 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label30_true-unreach-call.c [2018-10-27 06:19:13,928 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 06:19:13,941 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 06:19:13,961 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 06:19:14,005 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 06:19:14,007 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 06:19:14,007 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 06:19:14,008 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:19:14,008 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:19:14,008 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 06:19:14,008 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:19:14,008 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 06:19:14,039 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-27 06:19:14,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-10-27 06:19:14,059 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:19:14,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:19:14,064 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:19:14,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:19:14,072 INFO L82 PathProgramCache]: Analyzing trace with hash 2108174465, now seen corresponding path program 1 times [2018-10-27 06:19:14,076 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:19:14,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:19:14,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:19:14,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:19:14,138 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:19:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:19:15,085 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 06:19:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:19:15,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:19:15,334 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 06:19:15,334 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:19:15,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 06:19:15,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 06:19:15,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 06:19:15,363 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-10-27 06:19:17,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:19:17,674 INFO L93 Difference]: Finished difference Result 838 states and 1479 transitions. [2018-10-27 06:19:17,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 06:19:17,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2018-10-27 06:19:17,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:19:17,700 INFO L225 Difference]: With dead ends: 838 [2018-10-27 06:19:17,701 INFO L226 Difference]: Without dead ends: 524 [2018-10-27 06:19:17,709 INFO L605 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 [2018-10-27 06:19:17,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2018-10-27 06:19:17,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2018-10-27 06:19:17,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2018-10-27 06:19:17,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 890 transitions. [2018-10-27 06:19:17,804 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 890 transitions. Word has length 182 [2018-10-27 06:19:17,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:19:17,805 INFO L481 AbstractCegarLoop]: Abstraction has 522 states and 890 transitions. [2018-10-27 06:19:17,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 06:19:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 890 transitions. [2018-10-27 06:19:17,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-27 06:19:17,815 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:19:17,816 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 06:19:17,816 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:19:17,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:19:17,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1443247960, now seen corresponding path program 1 times [2018-10-27 06:19:17,817 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:19:17,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:19:17,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:19:17,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:19:17,819 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:19:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:19:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:19:18,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:19:18,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 06:19:18,342 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:19:18,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 06:19:18,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 06:19:18,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 06:19:18,345 INFO L87 Difference]: Start difference. First operand 522 states and 890 transitions. Second operand 6 states. [2018-10-27 06:19:21,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:19:21,855 INFO L93 Difference]: Finished difference Result 1581 states and 2759 transitions. [2018-10-27 06:19:21,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 06:19:21,857 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2018-10-27 06:19:21,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:19:21,869 INFO L225 Difference]: With dead ends: 1581 [2018-10-27 06:19:21,869 INFO L226 Difference]: Without dead ends: 1065 [2018-10-27 06:19:21,873 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 06:19:21,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2018-10-27 06:19:21,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1023. [2018-10-27 06:19:21,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2018-10-27 06:19:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1733 transitions. [2018-10-27 06:19:21,941 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1733 transitions. Word has length 192 [2018-10-27 06:19:21,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:19:21,941 INFO L481 AbstractCegarLoop]: Abstraction has 1023 states and 1733 transitions. [2018-10-27 06:19:21,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 06:19:21,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1733 transitions. [2018-10-27 06:19:21,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-10-27 06:19:21,947 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:19:21,947 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 06:19:21,947 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:19:21,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:19:21,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1778495237, now seen corresponding path program 1 times [2018-10-27 06:19:21,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:19:21,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:19:21,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:19:21,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:19:21,950 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:19:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:19:22,297 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:19:22,298 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:19:22,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 06:19:22,298 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:19:22,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 06:19:22,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 06:19:22,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 06:19:22,300 INFO L87 Difference]: Start difference. First operand 1023 states and 1733 transitions. Second operand 3 states. [2018-10-27 06:19:25,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:19:25,120 INFO L93 Difference]: Finished difference Result 2887 states and 5063 transitions. [2018-10-27 06:19:25,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 06:19:25,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2018-10-27 06:19:25,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:19:25,138 INFO L225 Difference]: With dead ends: 2887 [2018-10-27 06:19:25,138 INFO L226 Difference]: Without dead ends: 1870 [2018-10-27 06:19:25,148 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 06:19:25,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2018-10-27 06:19:25,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1865. [2018-10-27 06:19:25,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1865 states. [2018-10-27 06:19:25,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1865 states to 1865 states and 3055 transitions. [2018-10-27 06:19:25,225 INFO L78 Accepts]: Start accepts. Automaton has 1865 states and 3055 transitions. Word has length 195 [2018-10-27 06:19:25,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:19:25,226 INFO L481 AbstractCegarLoop]: Abstraction has 1865 states and 3055 transitions. [2018-10-27 06:19:25,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 06:19:25,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1865 states and 3055 transitions. [2018-10-27 06:19:25,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-10-27 06:19:25,234 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:19:25,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:19:25,235 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:19:25,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:19:25,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1213324138, now seen corresponding path program 1 times [2018-10-27 06:19:25,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:19:25,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:19:25,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:19:25,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:19:25,237 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:19:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:19:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:19:25,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:19:25,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 06:19:25,505 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:19:25,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 06:19:25,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 06:19:25,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 06:19:25,506 INFO L87 Difference]: Start difference. First operand 1865 states and 3055 transitions. Second operand 3 states. [2018-10-27 06:19:26,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:19:26,941 INFO L93 Difference]: Finished difference Result 5425 states and 9196 transitions. [2018-10-27 06:19:26,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 06:19:26,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2018-10-27 06:19:26,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:19:26,973 INFO L225 Difference]: With dead ends: 5425 [2018-10-27 06:19:26,973 INFO L226 Difference]: Without dead ends: 3566 [2018-10-27 06:19:26,984 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 06:19:26,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3566 states. [2018-10-27 06:19:27,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3566 to 3544. [2018-10-27 06:19:27,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3544 states. [2018-10-27 06:19:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3544 states to 3544 states and 5788 transitions. [2018-10-27 06:19:27,175 INFO L78 Accepts]: Start accepts. Automaton has 3544 states and 5788 transitions. Word has length 215 [2018-10-27 06:19:27,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:19:27,176 INFO L481 AbstractCegarLoop]: Abstraction has 3544 states and 5788 transitions. [2018-10-27 06:19:27,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 06:19:27,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3544 states and 5788 transitions. [2018-10-27 06:19:27,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-10-27 06:19:27,191 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:19:27,192 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, 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] [2018-10-27 06:19:27,192 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:19:27,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:19:27,192 INFO L82 PathProgramCache]: Analyzing trace with hash -647167813, now seen corresponding path program 1 times [2018-10-27 06:19:27,193 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:19:27,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:19:27,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:19:27,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:19:27,194 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:19:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:19:27,457 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:19:27,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:19:27,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 06:19:27,457 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:19:27,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 06:19:27,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 06:19:27,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 06:19:27,459 INFO L87 Difference]: Start difference. First operand 3544 states and 5788 transitions. Second operand 6 states. [2018-10-27 06:19:30,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:19:30,160 INFO L93 Difference]: Finished difference Result 7596 states and 12544 transitions. [2018-10-27 06:19:30,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 06:19:30,162 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 241 [2018-10-27 06:19:30,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:19:30,184 INFO L225 Difference]: With dead ends: 7596 [2018-10-27 06:19:30,185 INFO L226 Difference]: Without dead ends: 4058 [2018-10-27 06:19:30,200 INFO L605 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 [2018-10-27 06:19:30,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4058 states. [2018-10-27 06:19:30,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4058 to 3727. [2018-10-27 06:19:30,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3727 states. [2018-10-27 06:19:30,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 5669 transitions. [2018-10-27 06:19:30,330 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 5669 transitions. Word has length 241 [2018-10-27 06:19:30,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:19:30,331 INFO L481 AbstractCegarLoop]: Abstraction has 3727 states and 5669 transitions. [2018-10-27 06:19:30,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 06:19:30,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 5669 transitions. [2018-10-27 06:19:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-10-27 06:19:30,346 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:19:30,347 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:19:30,347 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:19:30,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:19:30,348 INFO L82 PathProgramCache]: Analyzing trace with hash 427925431, now seen corresponding path program 1 times [2018-10-27 06:19:30,348 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:19:30,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:19:30,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:19:30,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:19:30,349 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:19:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:19:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:19:30,780 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:19:30,780 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:19:30,781 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 255 with the following transitions: [2018-10-27 06:19:30,783 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [28], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [240], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [917], [919], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:19:30,854 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:19:30,854 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:19:32,034 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 06:19:32,036 INFO L272 AbstractInterpreter]: Visited 183 different actions 183 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-10-27 06:19:32,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:19:32,079 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 06:19:33,548 INFO L227 lantSequenceWeakener]: Weakened 245 states. On average, predicates are now at 72.32% of their original sizes. [2018-10-27 06:19:33,549 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 06:19:34,228 INFO L415 sIntCurrentIteration]: We unified 253 AI predicates to 253 [2018-10-27 06:19:34,228 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 06:19:34,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 06:19:34,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-10-27 06:19:34,229 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:19:34,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-27 06:19:34,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-27 06:19:34,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-10-27 06:19:34,231 INFO L87 Difference]: Start difference. First operand 3727 states and 5669 transitions. Second operand 13 states. [2018-10-27 06:20:02,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:20:02,057 INFO L93 Difference]: Finished difference Result 7658 states and 11659 transitions. [2018-10-27 06:20:02,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 06:20:02,057 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 254 [2018-10-27 06:20:02,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:20:02,079 INFO L225 Difference]: With dead ends: 7658 [2018-10-27 06:20:02,079 INFO L226 Difference]: Without dead ends: 3937 [2018-10-27 06:20:02,090 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 254 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2018-10-27 06:20:02,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3937 states. [2018-10-27 06:20:02,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3937 to 3935. [2018-10-27 06:20:02,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3935 states. [2018-10-27 06:20:02,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3935 states to 3935 states and 5887 transitions. [2018-10-27 06:20:02,208 INFO L78 Accepts]: Start accepts. Automaton has 3935 states and 5887 transitions. Word has length 254 [2018-10-27 06:20:02,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:20:02,208 INFO L481 AbstractCegarLoop]: Abstraction has 3935 states and 5887 transitions. [2018-10-27 06:20:02,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-27 06:20:02,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3935 states and 5887 transitions. [2018-10-27 06:20:02,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-10-27 06:20:02,531 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:20:02,531 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:20:02,531 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:20:02,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:20:02,532 INFO L82 PathProgramCache]: Analyzing trace with hash -837547636, now seen corresponding path program 1 times [2018-10-27 06:20:02,532 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:20:02,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:20:02,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:20:02,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:20:02,534 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:20:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:20:03,148 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-27 06:20:03,396 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:20:03,396 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:20:03,396 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:20:03,396 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 264 with the following transitions: [2018-10-27 06:20:03,397 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [240], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [917], [919], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:20:03,412 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:20:03,412 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:20:04,338 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 06:20:04,338 INFO L272 AbstractInterpreter]: Visited 186 different actions 371 times. Merged at 7 different actions 10 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 88 variables. [2018-10-27 06:20:04,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:20:04,348 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 06:20:05,206 INFO L227 lantSequenceWeakener]: Weakened 260 states. On average, predicates are now at 75.09% of their original sizes. [2018-10-27 06:20:05,207 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 06:20:05,543 INFO L415 sIntCurrentIteration]: We unified 262 AI predicates to 262 [2018-10-27 06:20:05,543 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 06:20:05,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 06:20:05,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-10-27 06:20:05,544 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:20:05,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-27 06:20:05,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-27 06:20:05,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-10-27 06:20:05,546 INFO L87 Difference]: Start difference. First operand 3935 states and 5887 transitions. Second operand 16 states. [2018-10-27 06:20:43,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:20:43,874 INFO L93 Difference]: Finished difference Result 13557 states and 21336 transitions. [2018-10-27 06:20:43,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-27 06:20:43,874 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 263 [2018-10-27 06:20:43,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:20:43,920 INFO L225 Difference]: With dead ends: 13557 [2018-10-27 06:20:43,920 INFO L226 Difference]: Without dead ends: 9836 [2018-10-27 06:20:43,939 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 268 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2018-10-27 06:20:43,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9836 states. [2018-10-27 06:20:44,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9836 to 9828. [2018-10-27 06:20:44,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9828 states. [2018-10-27 06:20:44,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9828 states to 9828 states and 14420 transitions. [2018-10-27 06:20:44,432 INFO L78 Accepts]: Start accepts. Automaton has 9828 states and 14420 transitions. Word has length 263 [2018-10-27 06:20:44,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:20:44,433 INFO L481 AbstractCegarLoop]: Abstraction has 9828 states and 14420 transitions. [2018-10-27 06:20:44,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-27 06:20:44,433 INFO L276 IsEmpty]: Start isEmpty. Operand 9828 states and 14420 transitions. [2018-10-27 06:20:44,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-10-27 06:20:44,469 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:20:44,469 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-27 06:20:44,470 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:20:44,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:20:44,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1683768024, now seen corresponding path program 1 times [2018-10-27 06:20:44,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:20:44,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:20:44,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:20:44,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:20:44,471 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:20:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:20:45,168 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 102 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:20:45,169 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:20:45,169 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:20:45,169 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 267 with the following transitions: [2018-10-27 06:20:45,170 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [115], [116], [120], [124], [128], [132], [136], [139], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [917], [919], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:20:45,178 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:20:45,178 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:20:45,736 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 06:20:45,736 INFO L272 AbstractInterpreter]: Visited 187 different actions 368 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-27 06:20:45,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:20:45,740 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 06:20:46,371 INFO L227 lantSequenceWeakener]: Weakened 263 states. On average, predicates are now at 72.76% of their original sizes. [2018-10-27 06:20:46,371 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 06:20:46,942 INFO L415 sIntCurrentIteration]: We unified 265 AI predicates to 265 [2018-10-27 06:20:46,943 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 06:20:46,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 06:20:46,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [10] total 29 [2018-10-27 06:20:46,944 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:20:46,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-27 06:20:46,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-27 06:20:46,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2018-10-27 06:20:46,946 INFO L87 Difference]: Start difference. First operand 9828 states and 14420 transitions. Second operand 21 states. [2018-10-27 06:21:11,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:21:11,374 INFO L93 Difference]: Finished difference Result 17282 states and 25657 transitions. [2018-10-27 06:21:11,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-27 06:21:11,374 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 266 [2018-10-27 06:21:11,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:21:11,411 INFO L225 Difference]: With dead ends: 17282 [2018-10-27 06:21:11,411 INFO L226 Difference]: Without dead ends: 10044 [2018-10-27 06:21:11,429 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 274 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=187, Invalid=683, Unknown=0, NotChecked=0, Total=870 [2018-10-27 06:21:11,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10044 states. [2018-10-27 06:21:11,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10044 to 10041. [2018-10-27 06:21:11,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10041 states. [2018-10-27 06:21:11,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10041 states to 10041 states and 14650 transitions. [2018-10-27 06:21:11,641 INFO L78 Accepts]: Start accepts. Automaton has 10041 states and 14650 transitions. Word has length 266 [2018-10-27 06:21:11,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:21:11,642 INFO L481 AbstractCegarLoop]: Abstraction has 10041 states and 14650 transitions. [2018-10-27 06:21:11,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-27 06:21:11,642 INFO L276 IsEmpty]: Start isEmpty. Operand 10041 states and 14650 transitions. [2018-10-27 06:21:11,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-10-27 06:21:11,680 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:21:11,681 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:21:11,681 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:21:11,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:21:11,682 INFO L82 PathProgramCache]: Analyzing trace with hash 475236147, now seen corresponding path program 1 times [2018-10-27 06:21:11,682 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:21:11,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:21:11,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:21:11,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:21:11,683 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:21:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:21:11,977 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 06:21:12,330 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 113 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-10-27 06:21:12,330 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:21:12,331 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:21:12,331 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 277 with the following transitions: [2018-10-27 06:21:12,331 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [16], [17], [21], [24], [25], [28], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [240], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [917], [919], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:21:12,337 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:21:12,337 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:21:13,320 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 06:21:13,320 INFO L272 AbstractInterpreter]: Visited 189 different actions 563 times. Merged at 8 different actions 20 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 88 variables. [2018-10-27 06:21:13,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:21:13,328 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 06:21:13,328 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:21:13,328 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 06:21:13,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:21:13,340 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 06:21:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:21:13,611 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:21:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-10-27 06:21:14,130 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 06:21:15,758 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 98 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-27 06:21:15,780 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 06:21:15,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-27 06:21:15,780 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 06:21:15,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 06:21:15,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 06:21:15,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-10-27 06:21:15,782 INFO L87 Difference]: Start difference. First operand 10041 states and 14650 transitions. Second operand 9 states. [2018-10-27 06:21:22,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:21:22,199 INFO L93 Difference]: Finished difference Result 36054 states and 60435 transitions. [2018-10-27 06:21:22,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-27 06:21:22,206 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 276 [2018-10-27 06:21:22,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:21:22,345 INFO L225 Difference]: With dead ends: 36054 [2018-10-27 06:21:22,345 INFO L226 Difference]: Without dead ends: 26440 [2018-10-27 06:21:22,407 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 561 SyntacticMatches, 7 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=195, Invalid=617, Unknown=0, NotChecked=0, Total=812 [2018-10-27 06:21:22,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26440 states. [2018-10-27 06:21:23,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26440 to 25657. [2018-10-27 06:21:23,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25657 states. [2018-10-27 06:21:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25657 states to 25657 states and 34006 transitions. [2018-10-27 06:21:23,351 INFO L78 Accepts]: Start accepts. Automaton has 25657 states and 34006 transitions. Word has length 276 [2018-10-27 06:21:23,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:21:23,351 INFO L481 AbstractCegarLoop]: Abstraction has 25657 states and 34006 transitions. [2018-10-27 06:21:23,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 06:21:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 25657 states and 34006 transitions. [2018-10-27 06:21:23,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-10-27 06:21:23,413 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:21:23,414 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-27 06:21:23,414 INFO L424 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:21:23,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:21:23,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1316784069, now seen corresponding path program 1 times [2018-10-27 06:21:23,415 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:21:23,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:21:23,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:21:23,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:21:23,416 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:21:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:21:24,074 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 06:21:24,334 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 147 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-27 06:21:24,334 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:21:24,335 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:21:24,335 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 290 with the following transitions: [2018-10-27 06:21:24,335 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [240], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [917], [919], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:21:24,341 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:21:24,342 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:21:25,773 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 06:21:25,773 INFO L272 AbstractInterpreter]: Visited 188 different actions 563 times. Merged at 8 different actions 23 times. Never widened. Found 5 fixpoints after 3 different actions. Largest state had 88 variables. [2018-10-27 06:21:25,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:21:25,814 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 06:21:25,814 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:21:25,814 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 06:21:25,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:21:25,836 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 06:21:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:21:26,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:21:26,400 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 90 proven. 54 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-10-27 06:21:26,400 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 06:21:27,100 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-10-27 06:21:27,136 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 06:21:27,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2018-10-27 06:21:27,136 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 06:21:27,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 06:21:27,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 06:21:27,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-10-27 06:21:27,138 INFO L87 Difference]: Start difference. First operand 25657 states and 34006 transitions. Second operand 8 states. [2018-10-27 06:21:33,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:21:33,680 INFO L93 Difference]: Finished difference Result 105212 states and 157462 transitions. [2018-10-27 06:21:33,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-27 06:21:33,680 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 289 [2018-10-27 06:21:33,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:21:34,104 INFO L225 Difference]: With dead ends: 105212 [2018-10-27 06:21:34,104 INFO L226 Difference]: Without dead ends: 79982 [2018-10-27 06:21:34,266 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=192, Invalid=458, Unknown=0, NotChecked=0, Total=650 [2018-10-27 06:21:34,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79982 states. [2018-10-27 06:21:36,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79982 to 78030. [2018-10-27 06:21:36,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78030 states. [2018-10-27 06:21:36,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78030 states to 78030 states and 99867 transitions. [2018-10-27 06:21:36,254 INFO L78 Accepts]: Start accepts. Automaton has 78030 states and 99867 transitions. Word has length 289 [2018-10-27 06:21:36,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:21:36,254 INFO L481 AbstractCegarLoop]: Abstraction has 78030 states and 99867 transitions. [2018-10-27 06:21:36,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 06:21:36,255 INFO L276 IsEmpty]: Start isEmpty. Operand 78030 states and 99867 transitions. [2018-10-27 06:21:36,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-10-27 06:21:36,368 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:21:36,368 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 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] [2018-10-27 06:21:36,369 INFO L424 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:21:36,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:21:36,369 INFO L82 PathProgramCache]: Analyzing trace with hash 89642240, now seen corresponding path program 1 times [2018-10-27 06:21:36,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:21:36,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:21:36,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:21:36,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:21:36,370 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:21:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:21:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 188 proven. 34 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-10-27 06:21:36,685 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:21:36,685 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:21:36,685 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 325 with the following transitions: [2018-10-27 06:21:36,686 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [123], [124], [127], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [240], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [917], [919], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:21:36,690 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:21:36,691 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:21:37,700 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 06:21:37,700 INFO L272 AbstractInterpreter]: Visited 189 different actions 568 times. Merged at 9 different actions 25 times. Never widened. Found 6 fixpoints after 3 different actions. Largest state had 88 variables. [2018-10-27 06:21:37,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:21:37,711 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 06:21:37,711 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:21:37,711 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 06:21:38,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:21:38,125 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 06:21:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:21:38,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:21:38,520 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 204 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-10-27 06:21:38,520 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 06:21:38,987 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 188 proven. 34 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-10-27 06:21:39,012 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 06:21:39,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2018-10-27 06:21:39,013 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 06:21:39,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 06:21:39,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 06:21:39,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 06:21:39,014 INFO L87 Difference]: Start difference. First operand 78030 states and 99867 transitions. Second operand 6 states. [2018-10-27 06:21:44,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:21:44,237 INFO L93 Difference]: Finished difference Result 232737 states and 321998 transitions. [2018-10-27 06:21:44,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 06:21:44,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 324 [2018-10-27 06:21:44,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:21:45,075 INFO L225 Difference]: With dead ends: 232737 [2018-10-27 06:21:45,075 INFO L226 Difference]: Without dead ends: 155134 [2018-10-27 06:21:45,474 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 649 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-10-27 06:21:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155134 states. [2018-10-27 06:21:49,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155134 to 152154. [2018-10-27 06:21:49,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152154 states. [2018-10-27 06:21:50,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152154 states to 152154 states and 188979 transitions. [2018-10-27 06:21:50,128 INFO L78 Accepts]: Start accepts. Automaton has 152154 states and 188979 transitions. Word has length 324 [2018-10-27 06:21:50,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:21:50,128 INFO L481 AbstractCegarLoop]: Abstraction has 152154 states and 188979 transitions. [2018-10-27 06:21:50,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 06:21:50,128 INFO L276 IsEmpty]: Start isEmpty. Operand 152154 states and 188979 transitions. [2018-10-27 06:21:50,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-10-27 06:21:50,338 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:21:50,339 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-10-27 06:21:50,339 INFO L424 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:21:50,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:21:50,339 INFO L82 PathProgramCache]: Analyzing trace with hash 602482647, now seen corresponding path program 1 times [2018-10-27 06:21:50,340 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:21:50,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:21:50,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:21:50,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:21:50,341 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:21:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:21:50,888 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 196 proven. 32 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-10-27 06:21:50,888 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:21:50,889 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:21:50,889 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 343 with the following transitions: [2018-10-27 06:21:50,889 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [48], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [123], [124], [127], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [240], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [917], [919], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:21:50,894 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:21:50,894 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:21:52,856 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 06:21:52,856 INFO L272 AbstractInterpreter]: Visited 190 different actions 571 times. Merged at 9 different actions 25 times. Never widened. Found 6 fixpoints after 3 different actions. Largest state had 88 variables. [2018-10-27 06:21:52,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:21:52,862 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 06:21:52,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:21:52,862 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 06:21:52,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:21:52,870 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 06:21:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:21:53,118 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:21:53,722 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 280 proven. 4 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-27 06:21:53,722 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 06:21:53,880 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-27 06:21:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 280 proven. 4 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-27 06:21:54,395 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 06:21:54,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-27 06:21:54,396 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 06:21:54,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 06:21:54,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 06:21:54,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-10-27 06:21:54,397 INFO L87 Difference]: Start difference. First operand 152154 states and 188979 transitions. Second operand 9 states. [2018-10-27 06:22:03,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:22:03,422 INFO L93 Difference]: Finished difference Result 484564 states and 620781 transitions. [2018-10-27 06:22:03,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 06:22:03,422 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 342 [2018-10-27 06:22:03,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:22:04,651 INFO L225 Difference]: With dead ends: 484564 [2018-10-27 06:22:04,651 INFO L226 Difference]: Without dead ends: 349188 [2018-10-27 06:22:04,973 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 682 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2018-10-27 06:22:05,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349188 states. [2018-10-27 06:22:17,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349188 to 346955. [2018-10-27 06:22:17,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346955 states. [2018-10-27 06:22:17,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346955 states to 346955 states and 424039 transitions. [2018-10-27 06:22:17,994 INFO L78 Accepts]: Start accepts. Automaton has 346955 states and 424039 transitions. Word has length 342 [2018-10-27 06:22:17,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:22:17,994 INFO L481 AbstractCegarLoop]: Abstraction has 346955 states and 424039 transitions. [2018-10-27 06:22:17,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 06:22:17,994 INFO L276 IsEmpty]: Start isEmpty. Operand 346955 states and 424039 transitions. [2018-10-27 06:22:18,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-10-27 06:22:18,208 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:22:18,209 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-27 06:22:18,209 INFO L424 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:22:18,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:22:18,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1796019360, now seen corresponding path program 1 times [2018-10-27 06:22:18,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:22:18,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:22:18,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:22:18,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:22:18,211 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:22:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:22:18,797 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-27 06:22:19,120 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 180 proven. 58 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-10-27 06:22:19,120 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:22:19,120 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:22:19,121 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 347 with the following transitions: [2018-10-27 06:22:19,121 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [240], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [350], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [917], [919], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:22:19,126 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:22:19,127 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:22:21,226 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 06:22:21,226 INFO L272 AbstractInterpreter]: Visited 188 different actions 561 times. Merged at 8 different actions 21 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 88 variables. [2018-10-27 06:22:21,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:22:21,236 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 06:22:21,236 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:22:21,236 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 06:22:21,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:22:21,245 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 06:22:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:22:21,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:22:21,724 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 237 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-27 06:22:21,724 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 06:22:21,864 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 237 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-27 06:22:21,886 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 06:22:21,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-27 06:22:21,887 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 06:22:21,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 06:22:21,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 06:22:21,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-10-27 06:22:21,888 INFO L87 Difference]: Start difference. First operand 346955 states and 424039 transitions. Second operand 9 states. [2018-10-27 06:22:36,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:22:36,921 INFO L93 Difference]: Finished difference Result 698517 states and 896682 transitions. [2018-10-27 06:22:36,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-10-27 06:22:36,921 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 346 [2018-10-27 06:22:36,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2018-10-27 06:22:39,689 INFO L225 Difference]: With dead ends: 698517 [2018-10-27 06:22:39,689 INFO L226 Difference]: Without dead ends: 352963 [2018-10-27 06:22:40,387 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 723 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=458, Invalid=1704, Unknown=0, NotChecked=0, Total=2162 [2018-10-27 06:22:40,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352963 states. [2018-10-27 06:22:40,592 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 06:22:40,595 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 06:22:40,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 06:22:40 BoogieIcfgContainer [2018-10-27 06:22:40,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 06:22:40,596 INFO L168 Benchmark]: Toolchain (without parser) took 213573.62 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -887.0 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2018-10-27 06:22:40,597 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 06:22:40,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1115.22 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-27 06:22:40,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 324.30 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -873.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-27 06:22:40,600 INFO L168 Benchmark]: Boogie Preprocessor took 140.19 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-10-27 06:22:40,600 INFO L168 Benchmark]: RCFGBuilder took 5300.10 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 249.9 MB). Peak memory consumption was 249.9 MB. Max. memory is 7.1 GB. [2018-10-27 06:22:40,601 INFO L168 Benchmark]: TraceAbstraction took 206688.06 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 2.0 GB in the beginning and 2.3 GB in the end (delta: -361.9 MB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-10-27 06:22:40,608 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1115.22 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 324.30 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -873.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.19 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5300.10 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 249.9 MB). Peak memory consumption was 249.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206688.06 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 2.0 GB in the beginning and 2.3 GB in the end (delta: -361.9 MB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1560]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1560). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 206.6s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 152.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3460 SDtfs, 22895 SDslu, 5297 SDs, 0 SdLazy, 27230 SolverSat, 5112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 72.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 4169 GetRequests, 3955 SyntacticMatches, 18 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1186 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346955occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 10.4s AbstIntTime, 8 AbstIntIterations, 3 AbstIntStrong, 0.9990762592375716 AbsIntWeakeningRatio, 0.24358974358974358 AbsIntAvgWeakeningVarsNumRemoved, 57.71153846153846 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 22.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 8363 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 4962 NumberOfCodeBlocks, 4962 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 6516 ConstructedInterpolants, 0 QuantifiedInterpolants, 4466668 SizeOfPredicates, 3 NumberOfNonLiveVariables, 7039 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 23 InterpolantComputations, 5 PerfectInterpolantSequences, 3684/3981 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown