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_label29_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 00:13:45,762 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 00:13:45,764 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 00:13:45,776 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 00:13:45,776 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 00:13:45,777 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 00:13:45,779 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 00:13:45,781 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 00:13:45,782 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 00:13:45,783 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 00:13:45,784 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 00:13:45,784 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 00:13:45,785 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 00:13:45,786 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 00:13:45,788 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 00:13:45,788 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 00:13:45,789 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 00:13:45,791 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 00:13:45,793 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 00:13:45,795 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 00:13:45,796 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 00:13:45,798 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 00:13:45,800 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 00:13:45,801 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 00:13:45,801 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 00:13:45,802 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 00:13:45,803 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 00:13:45,804 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 00:13:45,805 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 00:13:45,806 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 00:13:45,806 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 00:13:45,807 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-25 00:13:45,807 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-25 00:13:45,808 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-25 00:13:45,809 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-25 00:13:45,809 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-25 00:13:45,810 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 [2018-10-25 00:13:45,826 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 00:13:45,826 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 00:13:45,827 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 00:13:45,827 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 00:13:45,827 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 00:13:45,827 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 00:13:45,828 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 00:13:45,828 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 00:13:45,828 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 00:13:45,828 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 00:13:45,829 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 00:13:45,829 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 00:13:45,829 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 00:13:45,829 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 00:13:45,830 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 00:13:45,831 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 00:13:45,831 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 00:13:45,831 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 00:13:45,831 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 00:13:45,831 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 00:13:45,832 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 00:13:45,833 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 00:13:45,834 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 00:13:45,834 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 00:13:45,834 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 00:13:45,834 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 00:13:45,834 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 00:13:45,835 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 00:13:45,835 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 00:13:45,835 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 00:13:45,835 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 00:13:45,835 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 00:13:45,836 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 00:13:45,836 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 00:13:45,836 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 00:13:45,836 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 00:13:45,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 00:13:45,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 00:13:45,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 00:13:45,915 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 00:13:45,915 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 00:13:45,916 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label29_true-unreach-call.c [2018-10-25 00:13:45,981 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/96204393b/e6beafda4db7483d93105fed8703b1a7/FLAG03831935e [2018-10-25 00:13:46,647 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 00:13:46,650 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label29_true-unreach-call.c [2018-10-25 00:13:46,672 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/96204393b/e6beafda4db7483d93105fed8703b1a7/FLAG03831935e [2018-10-25 00:13:46,693 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/96204393b/e6beafda4db7483d93105fed8703b1a7 [2018-10-25 00:13:46,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 00:13:46,708 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 00:13:46,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 00:13:46,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 00:13:46,719 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 00:13:46,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:13:46" (1/1) ... [2018-10-25 00:13:46,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43be0e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:46, skipping insertion in model container [2018-10-25 00:13:46,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:13:46" (1/1) ... [2018-10-25 00:13:46,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 00:13:46,838 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 00:13:47,570 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:13:47,577 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 00:13:47,856 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:13:47,884 INFO L193 MainTranslator]: Completed translation [2018-10-25 00:13:47,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:47 WrapperNode [2018-10-25 00:13:47,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 00:13:47,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 00:13:47,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 00:13:47,887 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 00:13:47,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:47" (1/1) ... [2018-10-25 00:13:47,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:47" (1/1) ... [2018-10-25 00:13:48,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 00:13:48,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 00:13:48,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 00:13:48,203 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 00:13:48,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:47" (1/1) ... [2018-10-25 00:13:48,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:47" (1/1) ... [2018-10-25 00:13:48,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:47" (1/1) ... [2018-10-25 00:13:48,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:47" (1/1) ... [2018-10-25 00:13:48,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:47" (1/1) ... [2018-10-25 00:13:48,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:47" (1/1) ... [2018-10-25 00:13:48,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:47" (1/1) ... [2018-10-25 00:13:48,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 00:13:48,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 00:13:48,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 00:13:48,360 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 00:13:48,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:47" (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 [2018-10-25 00:13:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 00:13:48,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 00:13:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 00:13:48,437 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 00:13:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 00:13:48,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 00:13:48,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 00:13:48,438 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 00:13:54,067 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 00:13:54,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:13:54 BoogieIcfgContainer [2018-10-25 00:13:54,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 00:13:54,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 00:13:54,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 00:13:54,075 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 00:13:54,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 12:13:46" (1/3) ... [2018-10-25 00:13:54,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437b3318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:13:54, skipping insertion in model container [2018-10-25 00:13:54,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:13:47" (2/3) ... [2018-10-25 00:13:54,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437b3318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:13:54, skipping insertion in model container [2018-10-25 00:13:54,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:13:54" (3/3) ... [2018-10-25 00:13:54,080 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label29_true-unreach-call.c [2018-10-25 00:13:54,091 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 00:13:54,104 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 00:13:54,123 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 00:13:54,172 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 00:13:54,172 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 00:13:54,173 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 00:13:54,173 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 00:13:54,173 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 00:13:54,173 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 00:13:54,173 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 00:13:54,174 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 00:13:54,214 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-25 00:13:54,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-10-25 00:13:54,232 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:13:54,233 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, 1, 1, 1] [2018-10-25 00:13:54,236 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:13:54,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:13:54,242 INFO L82 PathProgramCache]: Analyzing trace with hash -676360028, now seen corresponding path program 1 times [2018-10-25 00:13:54,244 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:13:54,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:13:54,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:13:54,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:13:54,298 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:13:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:13:55,162 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 00:13:55,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:13:55,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:13:55,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 00:13:55,454 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:13:55,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 00:13:55,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 00:13:55,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:13:55,477 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-10-25 00:13:57,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:13:57,765 INFO L93 Difference]: Finished difference Result 838 states and 1479 transitions. [2018-10-25 00:13:57,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 00:13:57,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2018-10-25 00:13:57,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:13:57,789 INFO L225 Difference]: With dead ends: 838 [2018-10-25 00:13:57,790 INFO L226 Difference]: Without dead ends: 524 [2018-10-25 00:13:57,797 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 [2018-10-25 00:13:57,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2018-10-25 00:13:57,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2018-10-25 00:13:57,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2018-10-25 00:13:57,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 890 transitions. [2018-10-25 00:13:57,888 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 890 transitions. Word has length 185 [2018-10-25 00:13:57,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:13:57,890 INFO L481 AbstractCegarLoop]: Abstraction has 522 states and 890 transitions. [2018-10-25 00:13:57,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 00:13:57,890 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 890 transitions. [2018-10-25 00:13:57,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-10-25 00:13:57,898 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:13:57,899 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, 1, 1, 1] [2018-10-25 00:13:57,899 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:13:57,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:13:57,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1122546461, now seen corresponding path program 1 times [2018-10-25 00:13:57,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:13:57,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:13:57,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:13:57,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:13:57,902 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:13:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:13:58,299 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:13:58,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:13:58,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 00:13:58,300 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:13:58,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 00:13:58,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 00:13:58,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 00:13:58,303 INFO L87 Difference]: Start difference. First operand 522 states and 890 transitions. Second operand 6 states. [2018-10-25 00:14:01,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:14:01,871 INFO L93 Difference]: Finished difference Result 1581 states and 2759 transitions. [2018-10-25 00:14:01,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-25 00:14:01,874 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2018-10-25 00:14:01,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:14:01,889 INFO L225 Difference]: With dead ends: 1581 [2018-10-25 00:14:01,889 INFO L226 Difference]: Without dead ends: 1065 [2018-10-25 00:14:01,896 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 00:14:01,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2018-10-25 00:14:01,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1023. [2018-10-25 00:14:01,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2018-10-25 00:14:01,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1733 transitions. [2018-10-25 00:14:01,956 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1733 transitions. Word has length 195 [2018-10-25 00:14:01,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:14:01,956 INFO L481 AbstractCegarLoop]: Abstraction has 1023 states and 1733 transitions. [2018-10-25 00:14:01,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 00:14:01,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1733 transitions. [2018-10-25 00:14:01,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-10-25 00:14:01,963 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:14:01,963 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, 1, 1, 1] [2018-10-25 00:14:01,964 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:14:01,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:14:01,964 INFO L82 PathProgramCache]: Analyzing trace with hash 439964576, now seen corresponding path program 1 times [2018-10-25 00:14:01,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:14:01,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:14:01,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:14:01,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:14:01,966 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:14:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:14:02,246 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:14:02,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:14:02,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 00:14:02,247 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:14:02,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 00:14:02,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 00:14:02,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:14:02,248 INFO L87 Difference]: Start difference. First operand 1023 states and 1733 transitions. Second operand 3 states. [2018-10-25 00:14:04,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:14:04,836 INFO L93 Difference]: Finished difference Result 2901 states and 5098 transitions. [2018-10-25 00:14:04,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 00:14:04,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2018-10-25 00:14:04,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:14:04,855 INFO L225 Difference]: With dead ends: 2901 [2018-10-25 00:14:04,856 INFO L226 Difference]: Without dead ends: 1884 [2018-10-25 00:14:04,861 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 [2018-10-25 00:14:04,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2018-10-25 00:14:04,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1864. [2018-10-25 00:14:04,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1864 states. [2018-10-25 00:14:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 3159 transitions. [2018-10-25 00:14:04,937 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 3159 transitions. Word has length 198 [2018-10-25 00:14:04,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:14:04,937 INFO L481 AbstractCegarLoop]: Abstraction has 1864 states and 3159 transitions. [2018-10-25 00:14:04,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 00:14:04,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 3159 transitions. [2018-10-25 00:14:04,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-10-25 00:14:04,945 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:14:04,946 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:14:04,946 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:14:04,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:14:04,947 INFO L82 PathProgramCache]: Analyzing trace with hash -947922098, now seen corresponding path program 1 times [2018-10-25 00:14:04,947 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:14:04,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:14:04,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:14:04,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:14:04,948 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:14:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:14:05,157 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 00:14:05,202 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 00:14:05,203 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:14:05,203 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:14:05,204 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2018-10-25 00:14:05,206 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [16], [17], [21], [25], [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], [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], [921], [929], [937], [941], [943], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:14:05,284 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:14:05,284 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:14:06,627 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:14:06,629 INFO L272 AbstractInterpreter]: Visited 186 different actions 186 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-10-25 00:14:06,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:14:06,663 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:14:07,746 INFO L232 lantSequenceWeakener]: Weakened 195 states. On average, predicates are now at 73.45% of their original sizes. [2018-10-25 00:14:07,746 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:14:08,279 INFO L413 sIntCurrentIteration]: We have 205 unified AI predicates [2018-10-25 00:14:08,280 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:14:08,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:14:08,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [5] total 23 [2018-10-25 00:14:08,281 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:14:08,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-25 00:14:08,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-25 00:14:08,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2018-10-25 00:14:08,283 INFO L87 Difference]: Start difference. First operand 1864 states and 3159 transitions. Second operand 20 states. [2018-10-25 00:14:31,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:14:31,080 INFO L93 Difference]: Finished difference Result 3932 states and 6645 transitions. [2018-10-25 00:14:31,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 00:14:31,080 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 206 [2018-10-25 00:14:31,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:14:31,093 INFO L225 Difference]: With dead ends: 3932 [2018-10-25 00:14:31,093 INFO L226 Difference]: Without dead ends: 2074 [2018-10-25 00:14:31,099 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 206 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2018-10-25 00:14:31,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2018-10-25 00:14:31,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 2072. [2018-10-25 00:14:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2072 states. [2018-10-25 00:14:31,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 3376 transitions. [2018-10-25 00:14:31,157 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 3376 transitions. Word has length 206 [2018-10-25 00:14:31,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:14:31,157 INFO L481 AbstractCegarLoop]: Abstraction has 2072 states and 3376 transitions. [2018-10-25 00:14:31,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-25 00:14:31,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 3376 transitions. [2018-10-25 00:14:31,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-10-25 00:14:31,165 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:14:31,166 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:14:31,166 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:14:31,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:14:31,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1049555985, now seen corresponding path program 1 times [2018-10-25 00:14:31,167 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:14:31,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:14:31,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:14:31,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:14:31,168 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:14:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:14:31,475 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 34 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-25 00:14:31,475 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:14:31,475 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:14:31,476 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-10-25 00:14:31,477 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [16], [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], [128], [132], [136], [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], [921], [929], [937], [941], [943], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:14:31,488 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:14:31,488 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:14:32,697 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:14:32,697 INFO L272 AbstractInterpreter]: Visited 190 different actions 374 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:14:32,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:14:32,705 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:14:34,205 INFO L232 lantSequenceWeakener]: Weakened 213 states. On average, predicates are now at 73.26% of their original sizes. [2018-10-25 00:14:34,206 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:14:35,117 INFO L413 sIntCurrentIteration]: We have 217 unified AI predicates [2018-10-25 00:14:35,118 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:14:35,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:14:35,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [27] imperfect sequences [5] total 30 [2018-10-25 00:14:35,118 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:14:35,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-25 00:14:35,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-25 00:14:35,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2018-10-25 00:14:35,120 INFO L87 Difference]: Start difference. First operand 2072 states and 3376 transitions. Second operand 27 states. [2018-10-25 00:16:09,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:16:09,427 INFO L93 Difference]: Finished difference Result 4144 states and 6896 transitions. [2018-10-25 00:16:09,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 00:16:09,427 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 218 [2018-10-25 00:16:09,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:16:09,439 INFO L225 Difference]: With dead ends: 4144 [2018-10-25 00:16:09,440 INFO L226 Difference]: Without dead ends: 2286 [2018-10-25 00:16:09,446 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 226 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=246, Invalid=1014, Unknown=0, NotChecked=0, Total=1260 [2018-10-25 00:16:09,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2286 states. [2018-10-25 00:16:09,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2286 to 2283. [2018-10-25 00:16:09,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2283 states. [2018-10-25 00:16:09,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 3604 transitions. [2018-10-25 00:16:09,505 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 3604 transitions. Word has length 218 [2018-10-25 00:16:09,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:16:09,506 INFO L481 AbstractCegarLoop]: Abstraction has 2283 states and 3604 transitions. [2018-10-25 00:16:09,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-25 00:16:09,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 3604 transitions. [2018-10-25 00:16:09,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-10-25 00:16:09,514 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:16:09,514 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:16:09,514 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:16:09,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:16:09,515 INFO L82 PathProgramCache]: Analyzing trace with hash -76246610, now seen corresponding path program 1 times [2018-10-25 00:16:09,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:16:09,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:16:09,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:16:09,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:16:09,517 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:16:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:16:09,987 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:16:09,988 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:16:09,988 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:16:09,988 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-10-25 00:16:09,994 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [16], [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], [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], [921], [929], [937], [941], [943], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:16:10,011 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:16:10,011 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:16:12,757 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:16:12,758 INFO L272 AbstractInterpreter]: Visited 189 different actions 371 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:16:12,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:16:12,765 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:16:15,905 INFO L232 lantSequenceWeakener]: Weakened 14 states. On average, predicates are now at 89.37% of their original sizes. [2018-10-25 00:16:15,905 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:16:22,579 INFO L413 sIntCurrentIteration]: We have 216 unified AI predicates [2018-10-25 00:16:22,579 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:16:22,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:16:22,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-10-25 00:16:22,580 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:16:22,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-25 00:16:22,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-25 00:16:22,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-10-25 00:16:22,581 INFO L87 Difference]: Start difference. First operand 2283 states and 3604 transitions. Second operand 13 states. [2018-10-25 00:17:34,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:34,205 INFO L93 Difference]: Finished difference Result 5531 states and 8985 transitions. [2018-10-25 00:17:34,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-25 00:17:34,205 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 217 [2018-10-25 00:17:34,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:34,222 INFO L225 Difference]: With dead ends: 5531 [2018-10-25 00:17:34,222 INFO L226 Difference]: Without dead ends: 3673 [2018-10-25 00:17:34,229 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 221 GetRequests, 87 SyntacticMatches, 118 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2018-10-25 00:17:34,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3673 states. [2018-10-25 00:17:34,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3673 to 3662. [2018-10-25 00:17:34,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3662 states. [2018-10-25 00:17:34,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 5678 transitions. [2018-10-25 00:17:34,327 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 5678 transitions. Word has length 217 [2018-10-25 00:17:34,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:34,328 INFO L481 AbstractCegarLoop]: Abstraction has 3662 states and 5678 transitions. [2018-10-25 00:17:34,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-25 00:17:34,328 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 5678 transitions. [2018-10-25 00:17:34,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-25 00:17:34,339 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:34,339 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2018-10-25 00:17:34,340 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:34,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:34,340 INFO L82 PathProgramCache]: Analyzing trace with hash 2121522972, now seen corresponding path program 1 times [2018-10-25 00:17:34,340 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:34,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:34,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:34,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:34,341 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:34,579 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-25 00:17:34,579 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:17:34,579 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:17:34,579 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-10-25 00:17:34,580 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], [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], [921], [929], [937], [941], [943], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:17:34,587 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:17:34,587 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:17:40,162 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:17:40,163 INFO L272 AbstractInterpreter]: Visited 191 different actions 568 times. Merged at 7 different actions 19 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 88 variables. [2018-10-25 00:17:40,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:40,170 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:17:40,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:17:40,170 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 [2018-10-25 00:17:40,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:40,180 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:17:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:40,410 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:17:40,907 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 28 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-25 00:17:40,907 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:17:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-25 00:17:42,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-25 00:17:42,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-10-25 00:17:42,062 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:42,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-25 00:17:42,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-25 00:17:42,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-10-25 00:17:42,064 INFO L87 Difference]: Start difference. First operand 3662 states and 5678 transitions. Second operand 5 states. [2018-10-25 00:17:43,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:43,309 INFO L93 Difference]: Finished difference Result 9080 states and 14958 transitions. [2018-10-25 00:17:43,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-25 00:17:43,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 220 [2018-10-25 00:17:43,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:43,343 INFO L225 Difference]: With dead ends: 9080 [2018-10-25 00:17:43,343 INFO L226 Difference]: Without dead ends: 6375 [2018-10-25 00:17:43,355 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 430 SyntacticMatches, 7 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-10-25 00:17:43,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6375 states. [2018-10-25 00:17:43,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6375 to 6366. [2018-10-25 00:17:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6366 states. [2018-10-25 00:17:43,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6366 states to 6366 states and 10316 transitions. [2018-10-25 00:17:43,538 INFO L78 Accepts]: Start accepts. Automaton has 6366 states and 10316 transitions. Word has length 220 [2018-10-25 00:17:43,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:43,539 INFO L481 AbstractCegarLoop]: Abstraction has 6366 states and 10316 transitions. [2018-10-25 00:17:43,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-25 00:17:43,539 INFO L276 IsEmpty]: Start isEmpty. Operand 6366 states and 10316 transitions. [2018-10-25 00:17:43,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-10-25 00:17:43,557 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:43,558 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:17:43,558 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:43,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:43,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1922974290, now seen corresponding path program 1 times [2018-10-25 00:17:43,558 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:43,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:43,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:43,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:43,560 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-25 00:17:43,855 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:17:43,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 00:17:43,856 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:43,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 00:17:43,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 00:17:43,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:17:43,857 INFO L87 Difference]: Start difference. First operand 6366 states and 10316 transitions. Second operand 3 states. [2018-10-25 00:17:47,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:47,447 INFO L93 Difference]: Finished difference Result 17122 states and 29465 transitions. [2018-10-25 00:17:47,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 00:17:47,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2018-10-25 00:17:47,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:47,504 INFO L225 Difference]: With dead ends: 17122 [2018-10-25 00:17:47,504 INFO L226 Difference]: Without dead ends: 11392 [2018-10-25 00:17:47,531 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 [2018-10-25 00:17:47,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11392 states. [2018-10-25 00:17:47,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11392 to 11381. [2018-10-25 00:17:47,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11381 states. [2018-10-25 00:17:47,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11381 states to 11381 states and 18247 transitions. [2018-10-25 00:17:47,884 INFO L78 Accepts]: Start accepts. Automaton has 11381 states and 18247 transitions. Word has length 233 [2018-10-25 00:17:47,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:47,885 INFO L481 AbstractCegarLoop]: Abstraction has 11381 states and 18247 transitions. [2018-10-25 00:17:47,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 00:17:47,886 INFO L276 IsEmpty]: Start isEmpty. Operand 11381 states and 18247 transitions. [2018-10-25 00:17:47,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2018-10-25 00:17:47,929 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:47,929 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 00:17:47,930 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:47,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:47,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1129902680, now seen corresponding path program 1 times [2018-10-25 00:17:47,930 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:47,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:47,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:47,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:47,935 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:48,267 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 00:17:48,908 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 107 proven. 35 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 00:17:48,909 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:17:48,909 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:17:48,909 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 298 with the following transitions: [2018-10-25 00:17:48,909 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [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], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [315], [318], [322], [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], [921], [929], [937], [941], [943], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:17:48,914 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:17:48,914 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-25 00:17:49,614 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-25 00:17:49,615 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-25 00:17:49,615 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-25 00:17:49,615 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:17:49,615 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 [2018-10-25 00:17:49,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:49,627 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:17:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:49,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:17:49,880 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-25 00:17:50,081 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 00:17:50,082 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 00:17:50,087 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 00:17:50,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 12:17:50 BoogieIcfgContainer [2018-10-25 00:17:50,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 00:17:50,088 INFO L168 Benchmark]: Toolchain (without parser) took 243380.96 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -596.3 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-25 00:17:50,089 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-25 00:17:50,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1173.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-10-25 00:17:50,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 316.39 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -887.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-25 00:17:50,091 INFO L168 Benchmark]: Boogie Preprocessor took 156.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2018-10-25 00:17:50,092 INFO L168 Benchmark]: RCFGBuilder took 5710.11 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: 263.1 MB). Peak memory consumption was 263.1 MB. Max. memory is 7.1 GB. [2018-10-25 00:17:50,093 INFO L168 Benchmark]: TraceAbstraction took 236016.04 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: -72.7 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-25 00:17:50,098 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1173.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 316.39 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -887.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5710.11 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: 263.1 MB). Peak memory consumption was 263.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236016.04 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: -72.7 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1569]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1569). Cancelled while BasicCegarLoop was analyzing trace of length 298 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 235.9s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 202.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2216 SDtfs, 8328 SDslu, 2930 SDs, 0 SdLazy, 14765 SolverSat, 1173 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 151.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1121 GetRequests, 906 SyntacticMatches, 128 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1043 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11381occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.7s AbstIntTime, 5 AbstIntIterations, 3 AbstIntStrong, 0.9989731415173166 AbsIntWeakeningRatio, 0.3166144200626959 AbsIntAvgWeakeningVarsNumRemoved, 19.9153605015674 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 8 MinimizatonAttempts, 100 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1892 NumberOfCodeBlocks, 1892 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2102 ConstructedInterpolants, 0 QuantifiedInterpolants, 787179 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1202 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 333/353 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown