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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label08_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 12:57:57,710 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 12:57:57,712 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 12:57:57,730 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 12:57:57,730 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 12:57:57,731 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 12:57:57,732 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 12:57:57,734 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 12:57:57,736 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 12:57:57,737 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 12:57:57,738 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 12:57:57,738 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 12:57:57,739 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 12:57:57,740 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 12:57:57,741 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 12:57:57,742 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 12:57:57,743 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 12:57:57,745 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 12:57:57,747 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 12:57:57,748 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 12:57:57,749 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 12:57:57,751 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 12:57:57,753 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 12:57:57,753 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 12:57:57,754 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 12:57:57,755 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 12:57:57,756 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 12:57:57,756 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 12:57:57,757 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 12:57:57,758 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 12:57:57,759 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 12:57:57,759 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 12:57:57,760 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 12:57:57,760 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 12:57:57,761 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 12:57:57,762 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 12:57:57,762 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.epf [2018-11-07 12:57:57,777 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 12:57:57,778 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 12:57:57,780 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 12:57:57,780 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 12:57:57,780 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 12:57:57,780 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 12:57:57,781 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 12:57:57,781 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 12:57:57,781 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 12:57:57,781 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 12:57:57,781 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 12:57:57,782 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 12:57:57,782 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 12:57:57,783 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 12:57:57,784 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 12:57:57,784 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 12:57:57,784 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 12:57:57,784 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 12:57:57,785 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 12:57:57,786 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 12:57:57,786 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 12:57:57,786 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 12:57:57,786 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 12:57:57,787 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 12:57:57,787 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 12:57:57,787 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 12:57:57,787 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 12:57:57,788 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 12:57:57,788 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 12:57:57,788 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 12:57:57,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 12:57:57,789 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 12:57:57,789 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 12:57:57,789 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 12:57:57,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 12:57:57,866 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 12:57:57,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 12:57:57,872 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 12:57:57,872 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 12:57:57,873 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label08_true-unreach-call.c [2018-11-07 12:57:57,940 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c839b2d1/deceedd001494241b299ce561af9ae8a/FLAGd7e26a3fc [2018-11-07 12:57:58,650 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 12:57:58,651 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label08_true-unreach-call.c [2018-11-07 12:57:58,672 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c839b2d1/deceedd001494241b299ce561af9ae8a/FLAGd7e26a3fc [2018-11-07 12:57:58,691 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c839b2d1/deceedd001494241b299ce561af9ae8a [2018-11-07 12:57:58,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 12:57:58,707 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 12:57:58,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 12:57:58,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 12:57:58,715 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 12:57:58,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:57:58" (1/1) ... [2018-11-07 12:57:58,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673adebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:58, skipping insertion in model container [2018-11-07 12:57:58,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:57:58" (1/1) ... [2018-11-07 12:57:58,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 12:57:58,810 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 12:57:59,542 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 12:57:59,548 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 12:57:59,766 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 12:57:59,790 INFO L193 MainTranslator]: Completed translation [2018-11-07 12:57:59,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:59 WrapperNode [2018-11-07 12:57:59,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 12:57:59,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 12:57:59,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 12:57:59,793 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 12:57:59,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:59" (1/1) ... [2018-11-07 12:57:59,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:59" (1/1) ... [2018-11-07 12:57:59,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 12:57:59,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 12:57:59,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 12:57:59,989 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 12:58:00,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:59" (1/1) ... [2018-11-07 12:58:00,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:59" (1/1) ... [2018-11-07 12:58:00,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:59" (1/1) ... [2018-11-07 12:58:00,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:59" (1/1) ... [2018-11-07 12:58:00,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:59" (1/1) ... [2018-11-07 12:58:00,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:59" (1/1) ... [2018-11-07 12:58:00,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:59" (1/1) ... [2018-11-07 12:58:00,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 12:58:00,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 12:58:00,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 12:58:00,142 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 12:58:00,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:59" (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 12:58:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 12:58:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 12:58:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 12:58:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 12:58:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 12:58:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 12:58:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 12:58:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 12:58:00,224 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 12:58:05,542 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 12:58:05,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:58:05 BoogieIcfgContainer [2018-11-07 12:58:05,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 12:58:05,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 12:58:05,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 12:58:05,552 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 12:58:05,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:57:58" (1/3) ... [2018-11-07 12:58:05,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626ec42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:58:05, skipping insertion in model container [2018-11-07 12:58:05,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:59" (2/3) ... [2018-11-07 12:58:05,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626ec42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:58:05, skipping insertion in model container [2018-11-07 12:58:05,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:58:05" (3/3) ... [2018-11-07 12:58:05,559 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label08_true-unreach-call.c [2018-11-07 12:58:05,571 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 12:58:05,583 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 12:58:05,602 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 12:58:05,651 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 12:58:05,651 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 12:58:05,651 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 12:58:05,652 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 12:58:05,652 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 12:58:05,652 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 12:58:05,652 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 12:58:05,652 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 12:58:05,696 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-11-07 12:58:05,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-11-07 12:58:05,721 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:58:05,724 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 12:58:05,727 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:58:05,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:58:05,735 INFO L82 PathProgramCache]: Analyzing trace with hash -555774503, now seen corresponding path program 1 times [2018-11-07 12:58:05,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:58:05,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:58:05,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:58:05,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:58:05,809 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:58:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:58:06,710 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 12:58:06,900 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 12:58:06,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 12:58:06,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 12:58:06,903 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:58:06,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 12:58:06,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 12:58:06,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 12:58:06,930 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-11-07 12:58:09,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 12:58:09,137 INFO L93 Difference]: Finished difference Result 838 states and 1479 transitions. [2018-11-07 12:58:09,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 12:58:09,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2018-11-07 12:58:09,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 12:58:09,167 INFO L225 Difference]: With dead ends: 838 [2018-11-07 12:58:09,167 INFO L226 Difference]: Without dead ends: 524 [2018-11-07 12:58:09,175 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 12:58:09,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2018-11-07 12:58:09,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2018-11-07 12:58:09,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2018-11-07 12:58:09,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 890 transitions. [2018-11-07 12:58:09,265 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 890 transitions. Word has length 164 [2018-11-07 12:58:09,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 12:58:09,267 INFO L480 AbstractCegarLoop]: Abstraction has 522 states and 890 transitions. [2018-11-07 12:58:09,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 12:58:09,267 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 890 transitions. [2018-11-07 12:58:09,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-11-07 12:58:09,274 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:58:09,274 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 12:58:09,275 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:58:09,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:58:09,276 INFO L82 PathProgramCache]: Analyzing trace with hash -325733952, now seen corresponding path program 1 times [2018-11-07 12:58:09,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:58:09,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:58:09,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:58:09,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:58:09,278 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:58:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:58:09,643 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 12:58:09,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 12:58:09,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 12:58:09,644 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:58:09,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 12:58:09,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 12:58:09,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 12:58:09,647 INFO L87 Difference]: Start difference. First operand 522 states and 890 transitions. Second operand 6 states. [2018-11-07 12:58:13,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 12:58:13,582 INFO L93 Difference]: Finished difference Result 1581 states and 2759 transitions. [2018-11-07 12:58:13,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 12:58:13,582 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-11-07 12:58:13,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 12:58:13,593 INFO L225 Difference]: With dead ends: 1581 [2018-11-07 12:58:13,594 INFO L226 Difference]: Without dead ends: 1065 [2018-11-07 12:58:13,597 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 12:58:13,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2018-11-07 12:58:13,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1023. [2018-11-07 12:58:13,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2018-11-07 12:58:13,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1733 transitions. [2018-11-07 12:58:13,663 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1733 transitions. Word has length 174 [2018-11-07 12:58:13,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 12:58:13,663 INFO L480 AbstractCegarLoop]: Abstraction has 1023 states and 1733 transitions. [2018-11-07 12:58:13,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 12:58:13,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1733 transitions. [2018-11-07 12:58:13,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-11-07 12:58:13,668 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:58:13,668 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 12:58:13,669 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:58:13,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:58:13,669 INFO L82 PathProgramCache]: Analyzing trace with hash 348546397, now seen corresponding path program 1 times [2018-11-07 12:58:13,669 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:58:13,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:58:13,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:58:13,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:58:13,671 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:58:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:58:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 12:58:13,939 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 12:58:13,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 12:58:13,939 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:58:13,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 12:58:13,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 12:58:13,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 12:58:13,940 INFO L87 Difference]: Start difference. First operand 1023 states and 1733 transitions. Second operand 3 states. [2018-11-07 12:58:17,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 12:58:17,121 INFO L93 Difference]: Finished difference Result 2903 states and 5102 transitions. [2018-11-07 12:58:17,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 12:58:17,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2018-11-07 12:58:17,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 12:58:17,135 INFO L225 Difference]: With dead ends: 2903 [2018-11-07 12:58:17,135 INFO L226 Difference]: Without dead ends: 1886 [2018-11-07 12:58:17,140 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 12:58:17,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2018-11-07 12:58:17,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1866. [2018-11-07 12:58:17,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1866 states. [2018-11-07 12:58:17,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 3136 transitions. [2018-11-07 12:58:17,199 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 3136 transitions. Word has length 177 [2018-11-07 12:58:17,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 12:58:17,200 INFO L480 AbstractCegarLoop]: Abstraction has 1866 states and 3136 transitions. [2018-11-07 12:58:17,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 12:58:17,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 3136 transitions. [2018-11-07 12:58:17,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-11-07 12:58:17,207 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:58:17,208 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 12:58:17,208 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:58:17,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:58:17,208 INFO L82 PathProgramCache]: Analyzing trace with hash -713899340, now seen corresponding path program 1 times [2018-11-07 12:58:17,209 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:58:17,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:58:17,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:58:17,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:58:17,210 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:58:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:58:17,437 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 12:58:17,438 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 12:58:17,438 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 12:58:17,439 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-11-07 12:58:17,441 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [28], [29], [33], [37], [41], [45], [48], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [773], [775], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 12:58:17,508 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 12:58:17,509 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 12:58:36,212 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 12:58:36,214 INFO L272 AbstractInterpreter]: Visited 165 different actions 165 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-11-07 12:58:36,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:58:36,230 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 12:58:48,829 INFO L227 lantSequenceWeakener]: Weakened 186 states. On average, predicates are now at 71.07% of their original sizes. [2018-11-07 12:58:48,829 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 12:58:49,665 INFO L415 sIntCurrentIteration]: We unified 194 AI predicates to 194 [2018-11-07 12:58:49,665 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 12:58:49,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 12:58:49,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-11-07 12:58:49,667 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:58:49,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 12:58:49,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 12:58:49,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2018-11-07 12:58:49,668 INFO L87 Difference]: Start difference. First operand 1866 states and 3136 transitions. Second operand 16 states. [2018-11-07 13:00:06,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 13:00:06,740 INFO L93 Difference]: Finished difference Result 3936 states and 6627 transitions. [2018-11-07 13:00:06,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 13:00:06,740 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 195 [2018-11-07 13:00:06,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 13:00:06,751 INFO L225 Difference]: With dead ends: 3936 [2018-11-07 13:00:06,751 INFO L226 Difference]: Without dead ends: 2076 [2018-11-07 13:00:06,757 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 197 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2018-11-07 13:00:06,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2018-11-07 13:00:06,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 2074. [2018-11-07 13:00:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2074 states. [2018-11-07 13:00:06,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 3354 transitions. [2018-11-07 13:00:06,812 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 3354 transitions. Word has length 195 [2018-11-07 13:00:06,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 13:00:06,812 INFO L480 AbstractCegarLoop]: Abstraction has 2074 states and 3354 transitions. [2018-11-07 13:00:06,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 13:00:06,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 3354 transitions. [2018-11-07 13:00:06,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-11-07 13:00:06,820 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 13:00:06,820 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 13:00:06,821 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 13:00:06,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 13:00:06,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1563561471, now seen corresponding path program 1 times [2018-11-07 13:00:06,821 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 13:00:06,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 13:00:06,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 13:00:06,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 13:00:06,823 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 13:00:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 13:00:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 13:00:07,318 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 13:00:07,318 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 13:00:07,319 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-11-07 13:00:07,319 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [48], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [773], [775], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 13:00:07,331 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 13:00:07,332 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 13:01:53,056 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 13:01:53,056 INFO L272 AbstractInterpreter]: Visited 169 different actions 333 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-07 13:01:53,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 13:01:53,065 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 13:01:53,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 13:01:53,065 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 13:01:53,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 13:01:53,078 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 13:01:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 13:01:53,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 13:01:53,498 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-07 13:01:53,498 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 13:01:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-07 13:01:54,048 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 13:01:54,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-11-07 13:01:54,048 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 13:01:54,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 13:01:54,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 13:01:54,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-07 13:01:54,050 INFO L87 Difference]: Start difference. First operand 2074 states and 3354 transitions. Second operand 3 states. [2018-11-07 13:01:57,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 13:01:57,467 INFO L93 Difference]: Finished difference Result 5690 states and 9691 transitions. [2018-11-07 13:01:57,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 13:01:57,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2018-11-07 13:01:57,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 13:01:57,494 INFO L225 Difference]: With dead ends: 5690 [2018-11-07 13:01:57,494 INFO L226 Difference]: Without dead ends: 3830 [2018-11-07 13:01:57,503 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 406 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-07 13:01:57,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3830 states. [2018-11-07 13:01:57,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3830 to 3810. [2018-11-07 13:01:57,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3810 states. [2018-11-07 13:01:57,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3810 states to 3810 states and 6220 transitions. [2018-11-07 13:01:57,631 INFO L78 Accepts]: Start accepts. Automaton has 3810 states and 6220 transitions. Word has length 204 [2018-11-07 13:01:57,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 13:01:57,631 INFO L480 AbstractCegarLoop]: Abstraction has 3810 states and 6220 transitions. [2018-11-07 13:01:57,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 13:01:57,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3810 states and 6220 transitions. [2018-11-07 13:01:57,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-07 13:01:57,647 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 13:01:57,648 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:57,648 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 13:01:57,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 13:01:57,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1466197773, now seen corresponding path program 1 times [2018-11-07 13:01:57,649 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 13:01:57,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 13:01:57,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 13:01:57,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 13:01:57,650 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 13:01:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 13:01:58,190 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 13:01:58,191 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 13:01:58,191 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 13:01:58,191 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-07 13:01:58,192 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [139], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [773], [775], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 13:01:58,216 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 13:01:58,219 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-11-07 13:02:09,104 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 13:02:09,105 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 13:02:09,105 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 13:02:09,105 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 13:02:09,105 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 13:02:09,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 13:02:09,114 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 13:02:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 13:02:09,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 13:02:09,333 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 13:02:09,534 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 13:02:09,534 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 13:02:09,540 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 13:02:09,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:02:09 BoogieIcfgContainer [2018-11-07 13:02:09,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 13:02:09,542 INFO L168 Benchmark]: Toolchain (without parser) took 250836.23 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.7 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 639.8 MB. Max. memory is 7.1 GB. [2018-11-07 13:02:09,543 INFO L168 Benchmark]: CDTParser took 0.23 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 13:02:09,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1083.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-07 13:02:09,545 INFO L168 Benchmark]: Boogie Procedure Inliner took 196.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -872.8 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. [2018-11-07 13:02:09,546 INFO L168 Benchmark]: Boogie Preprocessor took 152.06 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 13:02:09,546 INFO L168 Benchmark]: RCFGBuilder took 5402.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 256.8 MB). Peak memory consumption was 256.8 MB. Max. memory is 7.1 GB. [2018-11-07 13:02:09,547 INFO L168 Benchmark]: TraceAbstraction took 243993.58 ms. Allocated memory was 2.3 GB in the beginning and 3.3 GB in the end (delta: 975.7 MB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -553.2 MB). Peak memory consumption was 422.5 MB. Max. memory is 7.1 GB. [2018-11-07 13:02:09,552 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1083.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 196.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -872.8 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 152.06 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5402.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 256.8 MB). Peak memory consumption was 256.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 243993.58 ms. Allocated memory was 2.3 GB in the beginning and 3.3 GB in the end (delta: 975.7 MB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -553.2 MB). Peak memory consumption was 422.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1506]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1506). Cancelled while BasicCegarLoop was analyzing trace of length 226 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 243.9s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 89.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1653 SDtfs, 2265 SDslu, 1322 SDs, 0 SdLazy, 5516 SolverSat, 763 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 72.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 629 GetRequests, 593 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3810occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 135.4s AbstIntTime, 3 AbstIntIterations, 1 AbstIntStrong, 0.9990952770463261 AbsIntWeakeningRatio, 0.31443298969072164 AbsIntAvgWeakeningVarsNumRemoved, 60.154639175257735 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 86 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1118 NumberOfCodeBlocks, 1118 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1315 ConstructedInterpolants, 0 QuantifiedInterpolants, 553495 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1023 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 207/211 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown