java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 09:46:44,951 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 09:46:44,953 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 09:46:44,965 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 09:46:44,966 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 09:46:44,967 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 09:46:44,968 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 09:46:44,970 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 09:46:44,972 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 09:46:44,973 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 09:46:44,974 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 09:46:44,974 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 09:46:44,975 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 09:46:44,976 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 09:46:44,977 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 09:46:44,978 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 09:46:44,979 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 09:46:44,980 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 09:46:44,983 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 09:46:44,984 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 09:46:44,985 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 09:46:44,987 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 09:46:44,989 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 09:46:44,990 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 09:46:44,990 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 09:46:44,991 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 09:46:44,992 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 09:46:44,993 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 09:46:44,994 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 09:46:44,995 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 09:46:44,995 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 09:46:44,996 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 09:46:44,996 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 09:46:44,997 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 09:46:44,998 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 09:46:44,998 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 09:46:44,999 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 09:46:45,015 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 09:46:45,015 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 09:46:45,016 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 09:46:45,016 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 09:46:45,016 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 09:46:45,017 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 09:46:45,017 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 09:46:45,017 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 09:46:45,017 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 09:46:45,017 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 09:46:45,018 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 09:46:45,018 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 09:46:45,018 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 09:46:45,018 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 09:46:45,019 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 09:46:45,019 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 09:46:45,019 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 09:46:45,019 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 09:46:45,020 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 09:46:45,020 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 09:46:45,020 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 09:46:45,020 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 09:46:45,020 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 09:46:45,021 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 09:46:45,021 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 09:46:45,021 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 09:46:45,021 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:46:45,021 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 09:46:45,022 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 09:46:45,022 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 09:46:45,022 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 09:46:45,022 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 09:46:45,022 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 09:46:45,022 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 09:46:45,023 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 09:46:45,023 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 09:46:45,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 09:46:45,081 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 09:46:45,085 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 09:46:45,086 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 09:46:45,087 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 09:46:45,087 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c [2018-11-07 09:46:45,149 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a993c54/e9cfe0837390401280490b42b941492b/FLAG334c9ed70 [2018-11-07 09:46:46,047 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 09:46:46,048 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c [2018-11-07 09:46:46,100 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a993c54/e9cfe0837390401280490b42b941492b/FLAG334c9ed70 [2018-11-07 09:46:46,120 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a993c54/e9cfe0837390401280490b42b941492b [2018-11-07 09:46:46,135 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 09:46:46,138 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 09:46:46,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 09:46:46,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 09:46:46,148 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 09:46:46,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:46:46" (1/1) ... [2018-11-07 09:46:46,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ef60d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:46, skipping insertion in model container [2018-11-07 09:46:46,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:46:46" (1/1) ... [2018-11-07 09:46:46,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 09:46:46,430 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 09:46:48,736 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:46:48,741 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 09:46:49,874 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:46:49,928 INFO L193 MainTranslator]: Completed translation [2018-11-07 09:46:49,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:49 WrapperNode [2018-11-07 09:46:49,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 09:46:49,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 09:46:49,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 09:46:49,932 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 09:46:49,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:49" (1/1) ... [2018-11-07 09:46:50,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:49" (1/1) ... [2018-11-07 09:46:50,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 09:46:50,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 09:46:50,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 09:46:50,472 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 09:46:50,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:49" (1/1) ... [2018-11-07 09:46:50,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:49" (1/1) ... [2018-11-07 09:46:50,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:49" (1/1) ... [2018-11-07 09:46:50,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:49" (1/1) ... [2018-11-07 09:46:50,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:49" (1/1) ... [2018-11-07 09:46:50,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:49" (1/1) ... [2018-11-07 09:46:50,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:49" (1/1) ... [2018-11-07 09:46:50,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 09:46:50,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 09:46:50,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 09:46:50,951 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 09:46:50,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:46:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 09:46:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 09:46:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 09:46:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-07 09:46:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-07 09:46:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-07 09:46:51,021 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-07 09:46:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 09:46:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 09:46:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 09:46:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 09:46:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 09:46:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 09:46:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 09:46:51,025 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 09:46:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 09:46:51,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 09:46:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 09:46:51,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 09:47:06,908 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 09:47:06,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:47:06 BoogieIcfgContainer [2018-11-07 09:47:06,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 09:47:06,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 09:47:06,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 09:47:06,915 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 09:47:06,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:46:46" (1/3) ... [2018-11-07 09:47:06,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725ca0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:47:06, skipping insertion in model container [2018-11-07 09:47:06,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:49" (2/3) ... [2018-11-07 09:47:06,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725ca0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:47:06, skipping insertion in model container [2018-11-07 09:47:06,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:47:06" (3/3) ... [2018-11-07 09:47:06,918 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label23_true-unreach-call.c [2018-11-07 09:47:06,928 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 09:47:06,939 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 09:47:06,957 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 09:47:07,010 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 09:47:07,011 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 09:47:07,011 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 09:47:07,011 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 09:47:07,011 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 09:47:07,011 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 09:47:07,011 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 09:47:07,011 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 09:47:07,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-07 09:47:07,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-07 09:47:07,078 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:47:07,080 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] [2018-11-07 09:47:07,082 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:47:07,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:47:07,090 INFO L82 PathProgramCache]: Analyzing trace with hash -11956822, now seen corresponding path program 1 times [2018-11-07 09:47:07,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:47:07,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:47:07,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:47:07,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:47:07,146 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:47:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:47:07,620 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:47:07,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:47:07,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:47:07,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 09:47:07,784 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:47:07,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 09:47:07,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 09:47:07,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:47:07,826 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-11-07 09:47:22,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:47:22,233 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-11-07 09:47:22,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 09:47:22,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-11-07 09:47:22,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:47:22,285 INFO L225 Difference]: With dead ends: 4999 [2018-11-07 09:47:22,285 INFO L226 Difference]: Without dead ends: 3219 [2018-11-07 09:47:22,300 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:47:22,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-11-07 09:47:22,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-11-07 09:47:22,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-11-07 09:47:22,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-11-07 09:47:22,504 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 59 [2018-11-07 09:47:22,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:47:22,505 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-11-07 09:47:22,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 09:47:22,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-11-07 09:47:22,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-07 09:47:22,522 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:47:22,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:47:22,523 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:47:22,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:47:22,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1729747758, now seen corresponding path program 1 times [2018-11-07 09:47:22,524 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:47:22,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:47:22,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:47:22,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:47:22,527 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:47:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:47:22,957 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:47:23,358 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:47:23,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:47:23,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:47:23,359 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:47:23,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:47:23,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:47:23,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:47:23,362 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-11-07 09:47:46,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:47:46,523 INFO L93 Difference]: Finished difference Result 9331 states and 16910 transitions. [2018-11-07 09:47:46,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:47:46,524 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-11-07 09:47:46,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:47:46,560 INFO L225 Difference]: With dead ends: 9331 [2018-11-07 09:47:46,560 INFO L226 Difference]: Without dead ends: 6122 [2018-11-07 09:47:46,572 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:47:46,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2018-11-07 09:47:46,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 6084. [2018-11-07 09:47:46,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6084 states. [2018-11-07 09:47:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6084 states to 6084 states and 9616 transitions. [2018-11-07 09:47:46,731 INFO L78 Accepts]: Start accepts. Automaton has 6084 states and 9616 transitions. Word has length 131 [2018-11-07 09:47:46,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:47:46,732 INFO L480 AbstractCegarLoop]: Abstraction has 6084 states and 9616 transitions. [2018-11-07 09:47:46,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:47:46,732 INFO L276 IsEmpty]: Start isEmpty. Operand 6084 states and 9616 transitions. [2018-11-07 09:47:46,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-07 09:47:46,737 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:47:46,738 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:47:46,738 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:47:46,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:47:46,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1793375852, now seen corresponding path program 1 times [2018-11-07 09:47:46,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:47:46,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:47:46,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:47:46,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:47:46,740 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:47:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:47:47,081 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:47:47,082 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:47:47,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:47:47,082 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:47:47,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:47:47,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:47:47,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:47:47,084 INFO L87 Difference]: Start difference. First operand 6084 states and 9616 transitions. Second operand 6 states. [2018-11-07 09:48:13,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:48:13,518 INFO L93 Difference]: Finished difference Result 24231 states and 39683 transitions. [2018-11-07 09:48:13,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 09:48:13,520 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-11-07 09:48:13,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:48:13,627 INFO L225 Difference]: With dead ends: 24231 [2018-11-07 09:48:13,627 INFO L226 Difference]: Without dead ends: 18153 [2018-11-07 09:48:13,665 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:48:13,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18153 states. [2018-11-07 09:48:14,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18153 to 18074. [2018-11-07 09:48:14,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18074 states. [2018-11-07 09:48:14,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18074 states to 18074 states and 25606 transitions. [2018-11-07 09:48:14,152 INFO L78 Accepts]: Start accepts. Automaton has 18074 states and 25606 transitions. Word has length 149 [2018-11-07 09:48:14,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:48:14,153 INFO L480 AbstractCegarLoop]: Abstraction has 18074 states and 25606 transitions. [2018-11-07 09:48:14,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:48:14,153 INFO L276 IsEmpty]: Start isEmpty. Operand 18074 states and 25606 transitions. [2018-11-07 09:48:14,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-11-07 09:48:14,160 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:48:14,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:48:14,160 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:48:14,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:48:14,161 INFO L82 PathProgramCache]: Analyzing trace with hash -808835625, now seen corresponding path program 1 times [2018-11-07 09:48:14,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:48:14,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:48:14,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:48:14,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:48:14,162 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:48:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:48:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:48:14,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:48:14,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 09:48:14,537 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:48:14,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 09:48:14,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 09:48:14,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 09:48:14,538 INFO L87 Difference]: Start difference. First operand 18074 states and 25606 transitions. Second operand 5 states. [2018-11-07 09:48:30,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:48:30,815 INFO L93 Difference]: Finished difference Result 56165 states and 84531 transitions. [2018-11-07 09:48:30,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 09:48:30,816 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2018-11-07 09:48:30,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:48:30,977 INFO L225 Difference]: With dead ends: 56165 [2018-11-07 09:48:30,977 INFO L226 Difference]: Without dead ends: 38097 [2018-11-07 09:48:31,041 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 09:48:31,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38097 states. [2018-11-07 09:48:31,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38097 to 36946. [2018-11-07 09:48:31,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36946 states. [2018-11-07 09:48:32,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36946 states to 36946 states and 49783 transitions. [2018-11-07 09:48:32,096 INFO L78 Accepts]: Start accepts. Automaton has 36946 states and 49783 transitions. Word has length 194 [2018-11-07 09:48:32,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:48:32,097 INFO L480 AbstractCegarLoop]: Abstraction has 36946 states and 49783 transitions. [2018-11-07 09:48:32,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 09:48:32,097 INFO L276 IsEmpty]: Start isEmpty. Operand 36946 states and 49783 transitions. [2018-11-07 09:48:32,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-11-07 09:48:32,109 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:48:32,109 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 09:48:32,110 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:48:32,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:48:32,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1152839494, now seen corresponding path program 1 times [2018-11-07 09:48:32,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:48:32,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:48:32,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:48:32,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:48:32,114 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:48:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:48:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 104 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 09:48:32,634 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:48:32,634 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:48:32,636 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-11-07 09:48:32,645 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5598], [5600], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5745], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5781], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-07 09:48:32,720 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:48:32,720 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:48:33,295 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:48:33,297 INFO L272 AbstractInterpreter]: Visited 87 different actions 87 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 09:48:33,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:48:33,346 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:48:33,844 INFO L227 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 75.79% of their original sizes. [2018-11-07 09:48:33,845 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:48:34,110 INFO L415 sIntCurrentIteration]: We unified 213 AI predicates to 213 [2018-11-07 09:48:34,111 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:48:34,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:48:34,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-07 09:48:34,112 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:48:34,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:48:34,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:48:34,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:48:34,114 INFO L87 Difference]: Start difference. First operand 36946 states and 49783 transitions. Second operand 6 states. Received shutdown request... [2018-11-07 09:50:33,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 09:50:33,989 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 09:50:33,995 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 09:50:33,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:50:33 BoogieIcfgContainer [2018-11-07 09:50:33,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 09:50:33,996 INFO L168 Benchmark]: Toolchain (without parser) took 227859.97 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-07 09:50:33,997 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 09:50:33,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3790.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 971.8 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. [2018-11-07 09:50:33,999 INFO L168 Benchmark]: Boogie Procedure Inliner took 540.15 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 826.8 MB). Free memory was 971.8 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-11-07 09:50:34,000 INFO L168 Benchmark]: Boogie Preprocessor took 478.88 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.5 MB). Peak memory consumption was 52.5 MB. Max. memory is 7.1 GB. [2018-11-07 09:50:34,000 INFO L168 Benchmark]: RCFGBuilder took 15959.02 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 170.4 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 493.4 MB). Peak memory consumption was 673.1 MB. Max. memory is 7.1 GB. [2018-11-07 09:50:34,001 INFO L168 Benchmark]: TraceAbstraction took 207084.03 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 3.0 GB in the end (delta: -1.3 GB). Peak memory consumption was 389.9 MB. Max. memory is 7.1 GB. [2018-11-07 09:50:34,007 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3790.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 971.8 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 540.15 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 826.8 MB). Free memory was 971.8 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 478.88 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.5 MB). Peak memory consumption was 52.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15959.02 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 170.4 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 493.4 MB). Peak memory consumption was 673.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207084.03 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 3.0 GB in the end (delta: -1.3 GB). Peak memory consumption was 389.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 172]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 172). Cancelled while BasicCegarLoop was constructing difference of abstraction (36946states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (17299 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 206.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 200.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2783 SDtfs, 22260 SDslu, 3300 SDs, 0 SdLazy, 41678 SolverSat, 9859 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 165.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 249 GetRequests, 219 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36946occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9975837678685201 AbsIntWeakeningRatio, 0.1267605633802817 AbsIntAvgWeakeningVarsNumRemoved, 17.356807511737088 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 1272 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 747 NumberOfCodeBlocks, 747 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 742 ConstructedInterpolants, 0 QuantifiedInterpolants, 485718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 265/333 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown