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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:41:02,673 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:41:02,675 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:41:02,690 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:41:02,691 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:41:02,692 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:41:02,693 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:41:02,695 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:41:02,697 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:41:02,701 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:41:02,702 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:41:02,702 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:41:02,705 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:41:02,709 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:41:02,710 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:41:02,711 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:41:02,717 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:41:02,722 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:41:02,724 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:41:02,729 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:41:02,730 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:41:02,733 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:41:02,737 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 03:41:02,738 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 03:41:02,738 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 03:41:02,739 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 03:41:02,740 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 03:41:02,743 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 03:41:02,744 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 03:41:02,747 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 03:41:02,747 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 03:41:02,749 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 03:41:02,750 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:41:02,750 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:41:02,751 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:41:02,751 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:41:02,752 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 03:41:02,780 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:41:02,780 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:41:02,782 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:41:02,782 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:41:02,783 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:41:02,783 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:41:02,783 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:41:02,783 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:41:02,784 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:41:02,784 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:41:02,784 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:41:02,784 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:41:02,785 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:41:02,785 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:41:02,786 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:41:02,787 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:41:02,787 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:41:02,787 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:41:02,787 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:41:02,787 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:41:02,788 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:41:02,788 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:41:02,788 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:41:02,788 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:41:02,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:41:02,790 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:41:02,790 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:41:02,790 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:41:02,791 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:41:02,791 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:41:02,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:41:02,791 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:41:02,791 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:41:02,792 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:41:02,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:41:02,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:41:02,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:41:02,885 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:41:02,885 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:41:02,886 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c [2018-11-07 03:41:02,956 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a3e7387c/0e65479ae90f4f47a971b87d069afb60/FLAG4e6e131d7 [2018-11-07 03:41:03,665 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:41:03,666 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c [2018-11-07 03:41:03,689 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a3e7387c/0e65479ae90f4f47a971b87d069afb60/FLAG4e6e131d7 [2018-11-07 03:41:03,708 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a3e7387c/0e65479ae90f4f47a971b87d069afb60 [2018-11-07 03:41:03,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:41:03,722 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:41:03,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:41:03,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:41:03,728 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:41:03,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:41:03" (1/1) ... [2018-11-07 03:41:03,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab4496a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:03, skipping insertion in model container [2018-11-07 03:41:03,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:41:03" (1/1) ... [2018-11-07 03:41:03,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:41:03,853 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:41:04,760 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:41:04,765 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:41:05,041 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:41:05,063 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:41:05,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05 WrapperNode [2018-11-07 03:41:05,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:41:05,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:41:05,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:41:05,064 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:41:05,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2018-11-07 03:41:05,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2018-11-07 03:41:05,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:41:05,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:41:05,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:41:05,260 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:41:05,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2018-11-07 03:41:05,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2018-11-07 03:41:05,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2018-11-07 03:41:05,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2018-11-07 03:41:05,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2018-11-07 03:41:05,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2018-11-07 03:41:05,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2018-11-07 03:41:05,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:41:05,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:41:05,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:41:05,419 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:41:05,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (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 03:41:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:41:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:41:05,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:41:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:41:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:41:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:41:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:41:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:41:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:41:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:41:05,487 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:41:11,174 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:41:11,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:41:11 BoogieIcfgContainer [2018-11-07 03:41:11,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:41:11,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:41:11,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:41:11,180 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:41:11,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:41:03" (1/3) ... [2018-11-07 03:41:11,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a76224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:41:11, skipping insertion in model container [2018-11-07 03:41:11,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (2/3) ... [2018-11-07 03:41:11,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a76224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:41:11, skipping insertion in model container [2018-11-07 03:41:11,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:41:11" (3/3) ... [2018-11-07 03:41:11,184 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label02_true-unreach-call.c [2018-11-07 03:41:11,194 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:41:11,203 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:41:11,222 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:41:11,264 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:41:11,265 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:41:11,265 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:41:11,265 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:41:11,265 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:41:11,265 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:41:11,265 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:41:11,266 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:41:11,297 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 03:41:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-11-07 03:41:11,309 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:41:11,311 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] [2018-11-07 03:41:11,314 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:41:11,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:41:11,320 INFO L82 PathProgramCache]: Analyzing trace with hash -730804356, now seen corresponding path program 1 times [2018-11-07 03:41:11,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:41:11,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:11,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:41:11,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:11,379 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:41:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:41:11,908 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-11-07 03:41:11,933 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 03:41:11,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:41:11,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 03:41:11,936 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:41:11,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 03:41:11,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 03:41:11,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:41:11,964 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-11-07 03:41:17,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:41:17,986 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-11-07 03:41:17,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 03:41:17,988 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2018-11-07 03:41:17,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:41:18,016 INFO L225 Difference]: With dead ends: 1513 [2018-11-07 03:41:18,016 INFO L226 Difference]: Without dead ends: 1097 [2018-11-07 03:41:18,026 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:41:18,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-11-07 03:41:18,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2018-11-07 03:41:18,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2018-11-07 03:41:18,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1954 transitions. [2018-11-07 03:41:18,163 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1954 transitions. Word has length 68 [2018-11-07 03:41:18,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:41:18,164 INFO L480 AbstractCegarLoop]: Abstraction has 1097 states and 1954 transitions. [2018-11-07 03:41:18,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 03:41:18,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1954 transitions. [2018-11-07 03:41:18,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-11-07 03:41:18,183 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:41:18,183 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:41:18,184 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:41:18,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:41:18,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1744489539, now seen corresponding path program 1 times [2018-11-07 03:41:18,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:41:18,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:18,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:41:18,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:18,186 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:41:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:41:18,521 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:41:18,927 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:41:18,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:41:18,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:41:18,929 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:41:18,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:41:18,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:41:18,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:41:18,932 INFO L87 Difference]: Start difference. First operand 1097 states and 1954 transitions. Second operand 6 states. [2018-11-07 03:41:23,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:41:23,415 INFO L93 Difference]: Finished difference Result 3259 states and 5952 transitions. [2018-11-07 03:41:23,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:41:23,421 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-11-07 03:41:23,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:41:23,443 INFO L225 Difference]: With dead ends: 3259 [2018-11-07 03:41:23,443 INFO L226 Difference]: Without dead ends: 2168 [2018-11-07 03:41:23,449 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:41:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2018-11-07 03:41:23,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2142. [2018-11-07 03:41:23,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2142 states. [2018-11-07 03:41:23,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 3739 transitions. [2018-11-07 03:41:23,537 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 3739 transitions. Word has length 139 [2018-11-07 03:41:23,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:41:23,538 INFO L480 AbstractCegarLoop]: Abstraction has 2142 states and 3739 transitions. [2018-11-07 03:41:23,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:41:23,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 3739 transitions. [2018-11-07 03:41:23,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-11-07 03:41:23,543 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:41:23,543 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:41:23,544 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:41:23,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:41:23,544 INFO L82 PathProgramCache]: Analyzing trace with hash -990959541, now seen corresponding path program 1 times [2018-11-07 03:41:23,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:41:23,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:23,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:41:23,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:23,546 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:41:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:41:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:41:23,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:41:23,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:41:23,765 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:41:23,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:41:23,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:41:23,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:41:23,767 INFO L87 Difference]: Start difference. First operand 2142 states and 3739 transitions. Second operand 6 states. [2018-11-07 03:41:28,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:41:28,539 INFO L93 Difference]: Finished difference Result 7053 states and 12688 transitions. [2018-11-07 03:41:28,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:41:28,540 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2018-11-07 03:41:28,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:41:28,577 INFO L225 Difference]: With dead ends: 7053 [2018-11-07 03:41:28,578 INFO L226 Difference]: Without dead ends: 4917 [2018-11-07 03:41:28,600 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:41:28,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2018-11-07 03:41:28,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4877. [2018-11-07 03:41:28,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4877 states. [2018-11-07 03:41:28,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4877 states to 4877 states and 7891 transitions. [2018-11-07 03:41:28,771 INFO L78 Accepts]: Start accepts. Automaton has 4877 states and 7891 transitions. Word has length 167 [2018-11-07 03:41:28,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:41:28,771 INFO L480 AbstractCegarLoop]: Abstraction has 4877 states and 7891 transitions. [2018-11-07 03:41:28,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:41:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4877 states and 7891 transitions. [2018-11-07 03:41:28,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-11-07 03:41:28,778 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:41:28,778 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 03:41:28,778 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:41:28,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:41:28,779 INFO L82 PathProgramCache]: Analyzing trace with hash -964551673, now seen corresponding path program 1 times [2018-11-07 03:41:28,779 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:41:28,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:28,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:41:28,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:28,780 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:41:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:41:29,150 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:41:29,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:41:29,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:41:29,150 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:41:29,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:41:29,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:41:29,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:41:29,152 INFO L87 Difference]: Start difference. First operand 4877 states and 7891 transitions. Second operand 6 states. [2018-11-07 03:41:31,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:41:31,800 INFO L93 Difference]: Finished difference Result 11909 states and 19972 transitions. [2018-11-07 03:41:31,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:41:31,801 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2018-11-07 03:41:31,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:41:31,845 INFO L225 Difference]: With dead ends: 11909 [2018-11-07 03:41:31,845 INFO L226 Difference]: Without dead ends: 7038 [2018-11-07 03:41:31,870 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 03:41:31,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7038 states. [2018-11-07 03:41:32,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7038 to 6977. [2018-11-07 03:41:32,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6977 states. [2018-11-07 03:41:32,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6977 states to 6977 states and 9942 transitions. [2018-11-07 03:41:32,102 INFO L78 Accepts]: Start accepts. Automaton has 6977 states and 9942 transitions. Word has length 185 [2018-11-07 03:41:32,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:41:32,103 INFO L480 AbstractCegarLoop]: Abstraction has 6977 states and 9942 transitions. [2018-11-07 03:41:32,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:41:32,103 INFO L276 IsEmpty]: Start isEmpty. Operand 6977 states and 9942 transitions. [2018-11-07 03:41:32,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-11-07 03:41:32,110 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:41:32,111 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 03:41:32,111 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:41:32,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:41:32,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1679600594, now seen corresponding path program 1 times [2018-11-07 03:41:32,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:41:32,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:32,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:41:32,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:32,113 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:41:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:41:32,488 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:41:32,712 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:41:32,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:41:32,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:41:32,713 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:41:32,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:41:32,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:41:32,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:41:32,715 INFO L87 Difference]: Start difference. First operand 6977 states and 9942 transitions. Second operand 6 states. [2018-11-07 03:41:36,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:41:36,420 INFO L93 Difference]: Finished difference Result 17709 states and 25496 transitions. [2018-11-07 03:41:36,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:41:36,421 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 232 [2018-11-07 03:41:36,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:41:36,484 INFO L225 Difference]: With dead ends: 17709 [2018-11-07 03:41:36,484 INFO L226 Difference]: Without dead ends: 10738 [2018-11-07 03:41:36,529 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 03:41:36,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10738 states. [2018-11-07 03:41:36,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10738 to 10702. [2018-11-07 03:41:36,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10702 states. [2018-11-07 03:41:36,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10702 states to 10702 states and 14504 transitions. [2018-11-07 03:41:36,774 INFO L78 Accepts]: Start accepts. Automaton has 10702 states and 14504 transitions. Word has length 232 [2018-11-07 03:41:36,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:41:36,774 INFO L480 AbstractCegarLoop]: Abstraction has 10702 states and 14504 transitions. [2018-11-07 03:41:36,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:41:36,775 INFO L276 IsEmpty]: Start isEmpty. Operand 10702 states and 14504 transitions. [2018-11-07 03:41:36,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2018-11-07 03:41:36,781 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:41:36,781 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 03:41:36,782 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:41:36,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:41:36,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1670114349, now seen corresponding path program 1 times [2018-11-07 03:41:36,782 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:41:36,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:36,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:41:36,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:36,784 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:41:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:41:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-07 03:41:37,093 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:41:37,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 03:41:37,095 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:41:37,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 03:41:37,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 03:41:37,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:41:37,096 INFO L87 Difference]: Start difference. First operand 10702 states and 14504 transitions. Second operand 4 states. [2018-11-07 03:41:42,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:41:42,158 INFO L93 Difference]: Finished difference Result 27183 states and 37579 transitions. [2018-11-07 03:41:42,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 03:41:42,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 269 [2018-11-07 03:41:42,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:41:42,236 INFO L225 Difference]: With dead ends: 27183 [2018-11-07 03:41:42,236 INFO L226 Difference]: Without dead ends: 16487 [2018-11-07 03:41:42,277 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 03:41:42,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16487 states. [2018-11-07 03:41:42,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16487 to 16487. [2018-11-07 03:41:42,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16487 states. [2018-11-07 03:41:42,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16487 states to 16487 states and 21165 transitions. [2018-11-07 03:41:42,641 INFO L78 Accepts]: Start accepts. Automaton has 16487 states and 21165 transitions. Word has length 269 [2018-11-07 03:41:42,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:41:42,642 INFO L480 AbstractCegarLoop]: Abstraction has 16487 states and 21165 transitions. [2018-11-07 03:41:42,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 03:41:42,642 INFO L276 IsEmpty]: Start isEmpty. Operand 16487 states and 21165 transitions. [2018-11-07 03:41:42,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2018-11-07 03:41:42,700 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:41:42,704 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:42,705 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:41:42,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:41:42,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1403080672, now seen corresponding path program 1 times [2018-11-07 03:41:42,706 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:41:42,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:42,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:41:42,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:41:42,712 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:41:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:41:43,426 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-11-07 03:41:43,427 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:41:43,427 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:41:43,428 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 493 with the following transitions: [2018-11-07 03:41:43,431 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [623], [625], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1128], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 03:41:43,522 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:41:43,522 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:41:48,291 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:42:12,793 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:42:12,794 INFO L272 AbstractInterpreter]: Visited 248 different actions 738 times. Merged at 7 different actions 16 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 03:42:12,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:42:12,814 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:42:19,022 INFO L227 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 82.83% of their original sizes. [2018-11-07 03:42:19,022 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:43:50,338 INFO L415 sIntCurrentIteration]: We unified 491 AI predicates to 491 [2018-11-07 03:43:50,338 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:43:50,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:43:50,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [7] total 25 [2018-11-07 03:43:50,340 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:43:50,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 03:43:50,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 03:43:50,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2018-11-07 03:43:50,342 INFO L87 Difference]: Start difference. First operand 16487 states and 21165 transitions. Second operand 20 states. Received shutdown request... [2018-11-07 03:44:51,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 03:44:51,696 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:44:51,702 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:44:51,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:44:51 BoogieIcfgContainer [2018-11-07 03:44:51,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:44:51,703 INFO L168 Benchmark]: Toolchain (without parser) took 227982.93 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -43.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 03:44:51,705 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:44:51,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1340.45 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 03:44:51,706 INFO L168 Benchmark]: Boogie Procedure Inliner took 194.92 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -855.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-11-07 03:44:51,707 INFO L168 Benchmark]: Boogie Preprocessor took 158.71 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:44:51,707 INFO L168 Benchmark]: RCFGBuilder took 5757.30 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 254.3 MB). Peak memory consumption was 254.3 MB. Max. memory is 7.1 GB. [2018-11-07 03:44:51,708 INFO L168 Benchmark]: TraceAbstraction took 220526.07 ms. Allocated memory was 2.2 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 473.1 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-07 03:44:51,713 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1340.45 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 194.92 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -855.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.71 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5757.30 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 254.3 MB). Peak memory consumption was 254.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 220526.07 ms. Allocated memory was 2.2 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 473.1 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 190]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 190). Cancelled while BasicCegarLoop was constructing difference of abstraction (16487states) and FLOYD_HOARE automaton (currently 10 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (459 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 220.4s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 88.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1097 SDtfs, 10226 SDslu, 617 SDs, 0 SdLazy, 12766 SolverSat, 4510 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 35.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 547 GetRequests, 376 SyntacticMatches, 116 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 92.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16487occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 29.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9975980696006375 AbsIntWeakeningRatio, 0.05295315682281059 AbsIntAvgWeakeningVarsNumRemoved, 397.43380855397146 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 163 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1552 NumberOfCodeBlocks, 1552 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1545 ConstructedInterpolants, 0 QuantifiedInterpolants, 1540216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 618/743 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown