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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 21:25:08,690 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 21:25:08,692 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 21:25:08,704 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 21:25:08,705 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 21:25:08,706 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 21:25:08,707 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 21:25:08,709 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 21:25:08,711 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 21:25:08,712 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 21:25:08,713 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 21:25:08,713 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 21:25:08,714 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 21:25:08,715 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 21:25:08,716 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 21:25:08,717 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 21:25:08,718 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 21:25:08,719 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 21:25:08,721 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 21:25:08,723 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 21:25:08,726 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 21:25:08,727 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 21:25:08,731 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 21:25:08,731 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 21:25:08,731 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 21:25:08,734 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 21:25:08,735 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 21:25:08,736 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 21:25:08,740 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 21:25:08,741 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 21:25:08,741 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 21:25:08,742 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 21:25:08,742 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 21:25:08,742 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 21:25:08,743 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 21:25:08,744 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 21:25:08,744 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 21:25:08,759 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 21:25:08,759 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 21:25:08,760 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 21:25:08,760 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 21:25:08,761 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 21:25:08,761 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 21:25:08,761 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 21:25:08,761 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 21:25:08,761 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 21:25:08,762 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 21:25:08,762 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 21:25:08,762 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 21:25:08,762 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 21:25:08,763 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 21:25:08,763 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 21:25:08,763 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 21:25:08,764 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 21:25:08,764 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 21:25:08,764 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 21:25:08,764 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 21:25:08,764 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 21:25:08,765 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 21:25:08,765 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 21:25:08,765 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 21:25:08,765 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 21:25:08,765 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 21:25:08,766 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 21:25:08,766 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 21:25:08,766 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 21:25:08,766 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 21:25:08,767 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 21:25:08,767 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 21:25:08,767 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 21:25:08,767 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 21:25:08,767 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 21:25:08,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 21:25:08,827 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 21:25:08,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 21:25:08,833 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 21:25:08,834 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 21:25:08,835 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-11-07 21:25:08,906 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/088db6347/8c51dea81e204ca0bb431b25b1de08f8/FLAG31778e4d7 [2018-11-07 21:25:09,815 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 21:25:09,816 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-11-07 21:25:09,864 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/088db6347/8c51dea81e204ca0bb431b25b1de08f8/FLAG31778e4d7 [2018-11-07 21:25:09,881 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/088db6347/8c51dea81e204ca0bb431b25b1de08f8 [2018-11-07 21:25:09,895 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 21:25:09,899 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 21:25:09,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 21:25:09,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 21:25:09,906 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 21:25:09,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:25:09" (1/1) ... [2018-11-07 21:25:09,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca2cb69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:09, skipping insertion in model container [2018-11-07 21:25:09,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:25:09" (1/1) ... [2018-11-07 21:25:09,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 21:25:10,156 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 21:25:12,182 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:25:12,187 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 21:25:13,422 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:25:13,477 INFO L193 MainTranslator]: Completed translation [2018-11-07 21:25:13,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:13 WrapperNode [2018-11-07 21:25:13,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 21:25:13,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 21:25:13,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 21:25:13,479 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 21:25:13,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:13" (1/1) ... [2018-11-07 21:25:14,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:13" (1/1) ... [2018-11-07 21:25:14,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 21:25:14,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 21:25:14,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 21:25:14,022 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 21:25:14,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:13" (1/1) ... [2018-11-07 21:25:14,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:13" (1/1) ... [2018-11-07 21:25:14,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:13" (1/1) ... [2018-11-07 21:25:14,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:13" (1/1) ... [2018-11-07 21:25:14,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:13" (1/1) ... [2018-11-07 21:25:14,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:13" (1/1) ... [2018-11-07 21:25:14,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:13" (1/1) ... [2018-11-07 21:25:14,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 21:25:14,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 21:25:14,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 21:25:14,453 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 21:25:14,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:13" (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 21:25:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 21:25:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 21:25:14,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 21:25:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-07 21:25:14,526 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-07 21:25:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-07 21:25:14,526 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-07 21:25:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 21:25:14,526 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 21:25:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 21:25:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 21:25:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 21:25:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 21:25:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 21:25:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 21:25:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 21:25:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 21:25:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 21:25:14,531 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 21:25:30,861 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 21:25:30,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:25:30 BoogieIcfgContainer [2018-11-07 21:25:30,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 21:25:30,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 21:25:30,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 21:25:30,867 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 21:25:30,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:25:09" (1/3) ... [2018-11-07 21:25:30,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b01d052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:25:30, skipping insertion in model container [2018-11-07 21:25:30,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:25:13" (2/3) ... [2018-11-07 21:25:30,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b01d052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:25:30, skipping insertion in model container [2018-11-07 21:25:30,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:25:30" (3/3) ... [2018-11-07 21:25:30,870 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label45_true-unreach-call.c [2018-11-07 21:25:30,881 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 21:25:30,891 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 21:25:30,908 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 21:25:30,961 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 21:25:30,961 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 21:25:30,961 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 21:25:30,961 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 21:25:30,962 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 21:25:30,962 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 21:25:30,962 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 21:25:30,962 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 21:25:31,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-07 21:25:31,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-07 21:25:31,035 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:25:31,037 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] [2018-11-07 21:25:31,040 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:25:31,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:25:31,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1607603996, now seen corresponding path program 1 times [2018-11-07 21:25:31,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:25:31,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:25:31,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:25:31,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:25:31,102 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:25:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:25:31,570 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 21:25:31,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:25:31,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 21:25:31,574 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:25:31,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 21:25:31,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 21:25:31,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:25:31,624 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-11-07 21:25:51,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:25:51,704 INFO L93 Difference]: Finished difference Result 6465 states and 12332 transitions. [2018-11-07 21:25:51,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:25:51,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-11-07 21:25:51,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:25:51,762 INFO L225 Difference]: With dead ends: 6465 [2018-11-07 21:25:51,762 INFO L226 Difference]: Without dead ends: 4681 [2018-11-07 21:25:51,777 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:25:51,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2018-11-07 21:25:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 3200. [2018-11-07 21:25:52,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3200 states. [2018-11-07 21:25:52,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 5132 transitions. [2018-11-07 21:25:52,092 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 5132 transitions. Word has length 54 [2018-11-07 21:25:52,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:25:52,093 INFO L480 AbstractCegarLoop]: Abstraction has 3200 states and 5132 transitions. [2018-11-07 21:25:52,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 21:25:52,093 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 5132 transitions. [2018-11-07 21:25:52,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-11-07 21:25:52,101 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:25:52,101 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:25:52,102 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:25:52,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:25:52,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1301823847, now seen corresponding path program 1 times [2018-11-07 21:25:52,102 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:25:52,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:25:52,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:25:52,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:25:52,104 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:25:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:25:52,430 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:25:52,811 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:25:52,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:25:52,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:25:52,812 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:25:52,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:25:52,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:25:52,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:25:52,817 INFO L87 Difference]: Start difference. First operand 3200 states and 5132 transitions. Second operand 6 states. [2018-11-07 21:26:14,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:26:14,840 INFO L93 Difference]: Finished difference Result 12097 states and 19723 transitions. [2018-11-07 21:26:14,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:26:14,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-11-07 21:26:14,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:26:14,889 INFO L225 Difference]: With dead ends: 12097 [2018-11-07 21:26:14,889 INFO L226 Difference]: Without dead ends: 8903 [2018-11-07 21:26:14,904 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 21:26:14,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8903 states. [2018-11-07 21:26:15,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8903 to 8846. [2018-11-07 21:26:15,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8846 states. [2018-11-07 21:26:15,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 12708 transitions. [2018-11-07 21:26:15,266 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 12708 transitions. Word has length 126 [2018-11-07 21:26:15,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:26:15,267 INFO L480 AbstractCegarLoop]: Abstraction has 8846 states and 12708 transitions. [2018-11-07 21:26:15,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:26:15,267 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 12708 transitions. [2018-11-07 21:26:15,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-11-07 21:26:15,274 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:26:15,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:26:15,274 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:26:15,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:26:15,277 INFO L82 PathProgramCache]: Analyzing trace with hash -13978768, now seen corresponding path program 1 times [2018-11-07 21:26:15,277 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:26:15,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:26:15,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:26:15,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:26:15,279 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:26:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:26:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:26:15,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:26:15,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:26:15,585 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:26:15,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:26:15,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:26:15,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:26:15,587 INFO L87 Difference]: Start difference. First operand 8846 states and 12708 transitions. Second operand 6 states. [2018-11-07 21:26:35,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:26:35,644 INFO L93 Difference]: Finished difference Result 29431 states and 43425 transitions. [2018-11-07 21:26:35,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:26:35,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-11-07 21:26:35,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:26:35,720 INFO L225 Difference]: With dead ends: 29431 [2018-11-07 21:26:35,720 INFO L226 Difference]: Without dead ends: 20591 [2018-11-07 21:26:35,757 INFO L604 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 [2018-11-07 21:26:35,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20591 states. [2018-11-07 21:26:36,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20591 to 20435. [2018-11-07 21:26:36,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20435 states. [2018-11-07 21:26:36,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20435 states to 20435 states and 28676 transitions. [2018-11-07 21:26:36,244 INFO L78 Accepts]: Start accepts. Automaton has 20435 states and 28676 transitions. Word has length 128 [2018-11-07 21:26:36,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:26:36,245 INFO L480 AbstractCegarLoop]: Abstraction has 20435 states and 28676 transitions. [2018-11-07 21:26:36,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:26:36,245 INFO L276 IsEmpty]: Start isEmpty. Operand 20435 states and 28676 transitions. [2018-11-07 21:26:36,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-07 21:26:36,249 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:26:36,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:26:36,250 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:26:36,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:26:36,250 INFO L82 PathProgramCache]: Analyzing trace with hash 721795799, now seen corresponding path program 1 times [2018-11-07 21:26:36,250 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:26:36,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:26:36,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:26:36,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:26:36,252 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:26:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:26:36,746 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:26:36,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:26:36,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:26:36,746 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:26:36,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:26:36,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:26:36,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:26:36,748 INFO L87 Difference]: Start difference. First operand 20435 states and 28676 transitions. Second operand 6 states. [2018-11-07 21:26:53,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:26:53,347 INFO L93 Difference]: Finished difference Result 62253 states and 89692 transitions. [2018-11-07 21:26:53,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 21:26:53,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-11-07 21:26:53,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:26:53,814 INFO L225 Difference]: With dead ends: 62253 [2018-11-07 21:26:53,814 INFO L226 Difference]: Without dead ends: 41824 [2018-11-07 21:26:53,864 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 21:26:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41824 states. [2018-11-07 21:26:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41824 to 41458. [2018-11-07 21:26:54,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41458 states. [2018-11-07 21:26:54,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41458 states to 41458 states and 57659 transitions. [2018-11-07 21:26:54,804 INFO L78 Accepts]: Start accepts. Automaton has 41458 states and 57659 transitions. Word has length 136 [2018-11-07 21:26:54,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:26:54,805 INFO L480 AbstractCegarLoop]: Abstraction has 41458 states and 57659 transitions. [2018-11-07 21:26:54,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:26:54,805 INFO L276 IsEmpty]: Start isEmpty. Operand 41458 states and 57659 transitions. [2018-11-07 21:26:54,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-07 21:26:54,809 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:26:54,809 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:26:54,809 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:26:54,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:26:54,810 INFO L82 PathProgramCache]: Analyzing trace with hash -179031743, now seen corresponding path program 1 times [2018-11-07 21:26:54,810 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:26:54,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:26:54,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:26:54,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:26:54,811 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:26:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:26:55,160 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:26:55,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:26:55,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 21:26:55,161 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:26:55,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 21:26:55,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 21:26:55,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 21:26:55,163 INFO L87 Difference]: Start difference. First operand 41458 states and 57659 transitions. Second operand 5 states. [2018-11-07 21:27:15,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:27:15,358 INFO L93 Difference]: Finished difference Result 125625 states and 179960 transitions. [2018-11-07 21:27:15,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 21:27:15,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2018-11-07 21:27:15,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:27:15,641 INFO L225 Difference]: With dead ends: 125625 [2018-11-07 21:27:15,642 INFO L226 Difference]: Without dead ends: 84173 [2018-11-07 21:27:15,735 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 21:27:15,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84173 states. [2018-11-07 21:27:17,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84173 to 82972. [2018-11-07 21:27:17,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82972 states. [2018-11-07 21:27:17,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82972 states to 82972 states and 106759 transitions. [2018-11-07 21:27:17,315 INFO L78 Accepts]: Start accepts. Automaton has 82972 states and 106759 transitions. Word has length 156 [2018-11-07 21:27:17,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:27:17,317 INFO L480 AbstractCegarLoop]: Abstraction has 82972 states and 106759 transitions. [2018-11-07 21:27:17,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 21:27:17,317 INFO L276 IsEmpty]: Start isEmpty. Operand 82972 states and 106759 transitions. [2018-11-07 21:27:17,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-07 21:27:17,323 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:27:17,323 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:27:17,324 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:27:17,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:27:17,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1693657294, now seen corresponding path program 1 times [2018-11-07 21:27:17,324 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:27:17,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:27:17,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:27:17,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:27:17,325 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:27:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:27:17,622 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:27:17,825 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:27:17,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:27:17,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:27:17,825 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:27:17,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:27:17,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:27:17,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:27:17,827 INFO L87 Difference]: Start difference. First operand 82972 states and 106759 transitions. Second operand 6 states. [2018-11-07 21:27:33,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:27:33,746 INFO L93 Difference]: Finished difference Result 187629 states and 251872 transitions. [2018-11-07 21:27:33,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:27:33,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2018-11-07 21:27:33,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:27:34,064 INFO L225 Difference]: With dead ends: 187629 [2018-11-07 21:27:34,065 INFO L226 Difference]: Without dead ends: 104663 [2018-11-07 21:27:34,212 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 21:27:34,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104663 states. [2018-11-07 21:27:35,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104663 to 103923. [2018-11-07 21:27:35,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103923 states. [2018-11-07 21:27:35,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103923 states to 103923 states and 134150 transitions. [2018-11-07 21:27:35,982 INFO L78 Accepts]: Start accepts. Automaton has 103923 states and 134150 transitions. Word has length 219 [2018-11-07 21:27:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:27:35,983 INFO L480 AbstractCegarLoop]: Abstraction has 103923 states and 134150 transitions. [2018-11-07 21:27:35,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:27:35,983 INFO L276 IsEmpty]: Start isEmpty. Operand 103923 states and 134150 transitions. [2018-11-07 21:27:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-11-07 21:27:36,003 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:27:36,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:27:36,005 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:27:36,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:27:36,005 INFO L82 PathProgramCache]: Analyzing trace with hash -2000312291, now seen corresponding path program 1 times [2018-11-07 21:27:36,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:27:36,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:27:36,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:27:36,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:27:36,009 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:27:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:27:36,611 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:27:36,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:27:36,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 21:27:36,612 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:27:36,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 21:27:36,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 21:27:36,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:27:36,614 INFO L87 Difference]: Start difference. First operand 103923 states and 134150 transitions. Second operand 4 states. [2018-11-07 21:27:55,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:27:55,068 INFO L93 Difference]: Finished difference Result 295773 states and 399240 transitions. [2018-11-07 21:27:55,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:27:55,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 541 [2018-11-07 21:27:55,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:27:56,527 INFO L225 Difference]: With dead ends: 295773 [2018-11-07 21:27:56,527 INFO L226 Difference]: Without dead ends: 191856 [2018-11-07 21:27:56,665 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:27:56,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191856 states. [2018-11-07 21:27:58,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191856 to 191527. [2018-11-07 21:27:58,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191527 states. [2018-11-07 21:28:00,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191527 states to 191527 states and 248444 transitions. [2018-11-07 21:28:00,433 INFO L78 Accepts]: Start accepts. Automaton has 191527 states and 248444 transitions. Word has length 541 [2018-11-07 21:28:00,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:28:00,434 INFO L480 AbstractCegarLoop]: Abstraction has 191527 states and 248444 transitions. [2018-11-07 21:28:00,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 21:28:00,434 INFO L276 IsEmpty]: Start isEmpty. Operand 191527 states and 248444 transitions. [2018-11-07 21:28:00,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2018-11-07 21:28:00,463 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:28:00,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:00,464 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:28:00,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:28:00,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1092730453, now seen corresponding path program 1 times [2018-11-07 21:28:00,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:28:00,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:28:00,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:28:00,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:28:00,466 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:28:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:28:01,109 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:28:01,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:28:01,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 21:28:01,109 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:28:01,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 21:28:01,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 21:28:01,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:28:01,111 INFO L87 Difference]: Start difference. First operand 191527 states and 248444 transitions. Second operand 4 states. [2018-11-07 21:28:18,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:28:18,511 INFO L93 Difference]: Finished difference Result 439502 states and 581122 transitions. [2018-11-07 21:28:18,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:28:18,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 648 [2018-11-07 21:28:18,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:28:19,118 INFO L225 Difference]: With dead ends: 439502 [2018-11-07 21:28:19,119 INFO L226 Difference]: Without dead ends: 247981 [2018-11-07 21:28:19,355 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:28:19,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247981 states. [2018-11-07 21:28:23,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247981 to 245091. [2018-11-07 21:28:23,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245091 states. [2018-11-07 21:28:25,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245091 states to 245091 states and 302442 transitions. [2018-11-07 21:28:25,401 INFO L78 Accepts]: Start accepts. Automaton has 245091 states and 302442 transitions. Word has length 648 [2018-11-07 21:28:25,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:28:25,402 INFO L480 AbstractCegarLoop]: Abstraction has 245091 states and 302442 transitions. [2018-11-07 21:28:25,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 21:28:25,402 INFO L276 IsEmpty]: Start isEmpty. Operand 245091 states and 302442 transitions. [2018-11-07 21:28:25,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2018-11-07 21:28:25,522 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:28:25,522 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:25,523 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:28:25,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:28:25,523 INFO L82 PathProgramCache]: Analyzing trace with hash 794042523, now seen corresponding path program 1 times [2018-11-07 21:28:25,524 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:28:25,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:28:25,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:28:25,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:28:25,525 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:28:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:28:32,801 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 324 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:28:32,801 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:28:32,801 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:28:32,803 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 914 with the following transitions: [2018-11-07 21:28:32,807 INFO L202 CegarAbsIntRunner]: [0], [1], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3116], [3127], [3131], [3135], [3146], [3150], [3154], [3158], [3169], [3173], [3184], [3188], [3192], [3196], [3200], [3204], [3208], [3212], [3216], [3220], [3224], [3228], [3232], [3236], [3240], [3251], [3255], [3259], [3263], [3267], [3271], [3275], [3279], [3283], [3287], [3291], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3361], [3365], [3376], [3380], [3384], [3395], [3399], [3403], [3407], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3457], [3461], [3465], [3469], [3473], [3484], [3488], [3492], [3496], [3500], [3504], [3508], [3512], [3516], [3520], [3524], [3528], [3532], [3536], [3540], [3544], [3548], [3552], [3556], [3567], [3571], [3575], [3579], [3583], [3587], [3591], [3595], [3599], [3603], [3607], [3610], [4195], [4196], [4200], [4204], [4208], [4212], [4216], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4279], [4290], [4294], [4298], [4309], [4313], [4317], [4321], [4325], [4329], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4396], [4400], [4404], [4408], [4412], [4416], [4420], [4431], [4435], [4439], [4443], [4454], [4458], [4462], [4466], [4470], [4474], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4553], [4557], [4561], [4565], [4569], [4573], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4620], [4624], [4628], [4632], [4636], [4647], [4651], [4655], [4659], [4663], [4667], [4671], [4675], [4679], [4690], [4694], [4698], [4709], [4713], [4717], [4721], [4725], [4729], [4733], [4737], [4741], [4745], [4749], [4753], [4764], [4768], [4772], [4776], [4780], [4784], [4788], [4792], [4803], [4807], [4811], [4815], [4819], [4823], [4827], [4831], [4835], [4839], [4843], [4847], [4858], [4862], [4873], [4877], [4881], [4885], [4896], [4900], [4904], [4908], [4912], [4916], [4920], [4924], [4935], [4939], [4943], [4954], [4958], [4962], [4966], [4970], [4974], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5094], [5105], [5109], [5120], [5124], [5128], [5132], [5136], [5140], [5144], [5148], [5152], [5156], [5167], [5171], [5175], [5179], [5183], [5187], [5191], [5195], [5199], [5203], [5207], [5211], [5215], [5219], [5223], [5225], [5226], [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], [5558], [5560], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6421], [6425], [6429], [6440], [6444], [6455], [6459], [6463], [6467], [6471], [6475], [6486], [6490], [6494], [6498], [6502], [6506], [6510], [6514], [6525], [6528], [6529], [6533], [6537], [6541], [6545], [6549], [6553], [6557], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6604], [6608], [6619], [6623], [6634], [6645], [6649], [6653], [6657], [6661], [6665], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6712], [6716], [6727], [6731], [6735], [6739], [6743], [6747], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6801], [6802], [6806], [6810], [6816], [6820], [6822], [6833], [6834], [6835], [6836], [6837], [6838], [6839], [6841], [6842] [2018-11-07 21:28:32,902 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:28:32,903 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:28:34,622 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:28:34,630 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:28:34,631 INFO L272 AbstractInterpreter]: Visited 626 different actions 626 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 21:28:34,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:28:34,681 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:28:36,739 INFO L227 lantSequenceWeakener]: Weakened 898 states. On average, predicates are now at 75.14% of their original sizes. [2018-11-07 21:28:36,740 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:28:37,971 INFO L415 sIntCurrentIteration]: We unified 912 AI predicates to 912 [2018-11-07 21:28:37,971 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:28:37,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:28:37,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-11-07 21:28:37,973 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:28:37,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 21:28:37,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 21:28:37,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-11-07 21:28:37,975 INFO L87 Difference]: Start difference. First operand 245091 states and 302442 transitions. Second operand 13 states. Received shutdown request... [2018-11-07 21:28:45,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:28:45,181 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 21:28:45,186 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 21:28:45,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:28:45 BoogieIcfgContainer [2018-11-07 21:28:45,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 21:28:45,188 INFO L168 Benchmark]: Toolchain (without parser) took 215292.43 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 986.5 MB. Max. memory is 7.1 GB. [2018-11-07 21:28:45,189 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. [2018-11-07 21:28:45,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3578.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. [2018-11-07 21:28:45,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 542.88 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 847.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 109.6 MB. Max. memory is 7.1 GB. [2018-11-07 21:28:45,191 INFO L168 Benchmark]: Boogie Preprocessor took 431.08 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 7.1 GB. [2018-11-07 21:28:45,192 INFO L168 Benchmark]: RCFGBuilder took 16409.14 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 141.6 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 549.1 MB). Peak memory consumption was 690.6 MB. Max. memory is 7.1 GB. [2018-11-07 21:28:45,193 INFO L168 Benchmark]: TraceAbstraction took 194323.90 ms. Allocated memory was 2.5 GB in the beginning and 4.5 GB in the end (delta: 2.0 GB). Free memory was 1.7 GB in the beginning and 3.4 GB in the end (delta: -1.7 GB). Peak memory consumption was 287.0 MB. Max. memory is 7.1 GB. [2018-11-07 21:28:45,198 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 3578.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 542.88 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 847.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 109.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 431.08 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16409.14 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 141.6 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 549.1 MB). Peak memory consumption was 690.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194323.90 ms. Allocated memory was 2.5 GB in the beginning and 4.5 GB in the end (delta: 2.0 GB). Free memory was 1.7 GB in the beginning and 3.4 GB in the end (delta: -1.7 GB). Peak memory consumption was 287.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 157). Cancelled while BasicCegarLoop was constructing difference of abstraction (245091states) and FLOYD_HOARE automaton (currently 7 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (559 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 194.2s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 162.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7675 SDtfs, 49282 SDslu, 5622 SDs, 0 SdLazy, 78782 SolverSat, 21005 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 119.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 979 GetRequests, 923 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=245091occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9992489612948707 AbsIntWeakeningRatio, 0.03837719298245614 AbsIntAvgWeakeningVarsNumRemoved, 19.739035087719298 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 15.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 7220 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 2921 NumberOfCodeBlocks, 2921 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2912 ConstructedInterpolants, 0 QuantifiedInterpolants, 3628968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 653/655 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown