java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 21:16:06,371 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 21:16:06,373 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 21:16:06,386 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 21:16:06,386 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 21:16:06,387 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 21:16:06,389 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 21:16:06,392 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 21:16:06,395 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 21:16:06,396 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 21:16:06,403 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 21:16:06,403 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 21:16:06,404 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 21:16:06,409 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 21:16:06,411 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 21:16:06,411 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 21:16:06,414 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 21:16:06,418 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 21:16:06,422 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 21:16:06,423 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 21:16:06,428 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 21:16:06,429 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 21:16:06,433 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 21:16:06,433 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 21:16:06,433 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 21:16:06,434 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 21:16:06,438 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 21:16:06,439 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 21:16:06,440 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 21:16:06,441 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 21:16:06,443 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 21:16:06,444 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 21:16:06,444 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 21:16:06,444 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 21:16:06,445 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 21:16:06,447 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 21:16:06,448 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 21:16:06,476 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 21:16:06,477 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 21:16:06,478 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 21:16:06,478 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 21:16:06,478 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 21:16:06,478 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 21:16:06,478 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 21:16:06,479 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 21:16:06,479 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 21:16:06,479 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 21:16:06,479 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 21:16:06,479 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 21:16:06,480 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 21:16:06,480 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 21:16:06,481 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 21:16:06,481 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 21:16:06,481 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 21:16:06,481 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 21:16:06,481 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 21:16:06,482 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 21:16:06,482 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 21:16:06,482 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 21:16:06,482 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 21:16:06,482 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 21:16:06,483 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 21:16:06,483 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 21:16:06,483 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 21:16:06,483 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 21:16:06,483 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 21:16:06,484 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 21:16:06,484 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 21:16:06,484 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 21:16:06,484 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 21:16:06,484 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 21:16:06,485 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 21:16:06,530 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 21:16:06,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 21:16:06,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 21:16:06,551 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 21:16:06,551 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 21:16:06,553 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label53_true-unreach-call.c [2018-11-07 21:16:06,632 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed91ae20/cc0870c8c576472780e9612b1fcaf896/FLAGd5c1c715d [2018-11-07 21:16:07,431 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 21:16:07,432 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label53_true-unreach-call.c [2018-11-07 21:16:07,464 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed91ae20/cc0870c8c576472780e9612b1fcaf896/FLAGd5c1c715d [2018-11-07 21:16:07,484 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed91ae20/cc0870c8c576472780e9612b1fcaf896 [2018-11-07 21:16:07,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 21:16:07,500 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 21:16:07,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 21:16:07,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 21:16:07,506 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 21:16:07,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:16:07" (1/1) ... [2018-11-07 21:16:07,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692e9784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:07, skipping insertion in model container [2018-11-07 21:16:07,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:16:07" (1/1) ... [2018-11-07 21:16:07,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 21:16:07,660 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 21:16:08,923 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:16:08,927 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 21:16:09,394 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:16:09,424 INFO L193 MainTranslator]: Completed translation [2018-11-07 21:16:09,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:09 WrapperNode [2018-11-07 21:16:09,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 21:16:09,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 21:16:09,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 21:16:09,426 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 21:16:09,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:09" (1/1) ... [2018-11-07 21:16:09,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:09" (1/1) ... [2018-11-07 21:16:09,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 21:16:09,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 21:16:09,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 21:16:09,723 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 21:16:09,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:09" (1/1) ... [2018-11-07 21:16:09,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:09" (1/1) ... [2018-11-07 21:16:09,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:09" (1/1) ... [2018-11-07 21:16:09,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:09" (1/1) ... [2018-11-07 21:16:09,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:09" (1/1) ... [2018-11-07 21:16:09,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:09" (1/1) ... [2018-11-07 21:16:09,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:09" (1/1) ... [2018-11-07 21:16:09,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 21:16:09,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 21:16:09,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 21:16:09,953 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 21:16:09,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 21:16:10,026 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 21:16:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 21:16:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 21:16:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 21:16:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 21:16:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 21:16:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 21:16:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 21:16:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 21:16:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 21:16:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 21:16:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 21:16:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 21:16:18,583 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 21:16:18,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:16:18 BoogieIcfgContainer [2018-11-07 21:16:18,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 21:16:18,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 21:16:18,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 21:16:18,589 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 21:16:18,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:16:07" (1/3) ... [2018-11-07 21:16:18,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4d9848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:16:18, skipping insertion in model container [2018-11-07 21:16:18,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:09" (2/3) ... [2018-11-07 21:16:18,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4d9848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:16:18, skipping insertion in model container [2018-11-07 21:16:18,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:16:18" (3/3) ... [2018-11-07 21:16:18,593 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label53_true-unreach-call.c [2018-11-07 21:16:18,603 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 21:16:18,612 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 21:16:18,627 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 21:16:18,672 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 21:16:18,672 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 21:16:18,672 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 21:16:18,672 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 21:16:18,673 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 21:16:18,673 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 21:16:18,673 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 21:16:18,673 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 21:16:18,715 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 21:16:18,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-07 21:16:18,723 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:16:18,725 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] [2018-11-07 21:16:18,727 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:16:18,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:16:18,734 INFO L82 PathProgramCache]: Analyzing trace with hash 861122892, now seen corresponding path program 1 times [2018-11-07 21:16:18,736 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:16:18,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:18,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:16:18,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:18,787 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:16:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:16:19,226 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:16:19,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:16:19,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:16:19,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 21:16:19,345 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:16:19,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 21:16:19,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 21:16:19,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 21:16:19,371 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-11-07 21:16:25,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:16:25,887 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-11-07 21:16:25,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 21:16:25,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2018-11-07 21:16:25,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:16:25,922 INFO L225 Difference]: With dead ends: 2251 [2018-11-07 21:16:25,922 INFO L226 Difference]: Without dead ends: 1474 [2018-11-07 21:16:25,933 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 21:16:25,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-11-07 21:16:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-11-07 21:16:26,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-07 21:16:26,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-11-07 21:16:26,075 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 40 [2018-11-07 21:16:26,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:16:26,075 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-11-07 21:16:26,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 21:16:26,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-11-07 21:16:26,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-11-07 21:16:26,088 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:16:26,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:16:26,089 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:16:26,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:16:26,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1815461261, now seen corresponding path program 1 times [2018-11-07 21:16:26,089 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:16:26,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:26,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:16:26,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:26,093 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:16:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:16:26,723 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:16:26,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:16:26,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:16:26,723 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:16:26,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:16:26,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:16:26,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:16:26,726 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 6 states. [2018-11-07 21:16:37,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:16:37,798 INFO L93 Difference]: Finished difference Result 4419 states and 8244 transitions. [2018-11-07 21:16:37,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:16:37,798 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-11-07 21:16:37,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:16:37,829 INFO L225 Difference]: With dead ends: 4419 [2018-11-07 21:16:37,830 INFO L226 Difference]: Without dead ends: 2951 [2018-11-07 21:16:37,835 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 21:16:37,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-11-07 21:16:37,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2928. [2018-11-07 21:16:37,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-11-07 21:16:37,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5087 transitions. [2018-11-07 21:16:37,960 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5087 transitions. Word has length 129 [2018-11-07 21:16:37,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:16:37,961 INFO L480 AbstractCegarLoop]: Abstraction has 2928 states and 5087 transitions. [2018-11-07 21:16:37,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:16:37,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5087 transitions. [2018-11-07 21:16:37,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-11-07 21:16:37,977 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:16:37,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:16:37,980 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:16:37,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:16:37,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1289606006, now seen corresponding path program 1 times [2018-11-07 21:16:37,980 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:16:37,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:37,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:16:37,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:37,982 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:16:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:16:38,309 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:16:38,309 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:16:38,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:16:38,310 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:16:38,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:16:38,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:16:38,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:16:38,311 INFO L87 Difference]: Start difference. First operand 2928 states and 5087 transitions. Second operand 6 states. [2018-11-07 21:16:46,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:16:46,576 INFO L93 Difference]: Finished difference Result 10194 states and 17948 transitions. [2018-11-07 21:16:46,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:16:46,580 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2018-11-07 21:16:46,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:16:46,631 INFO L225 Difference]: With dead ends: 10194 [2018-11-07 21:16:46,632 INFO L226 Difference]: Without dead ends: 7272 [2018-11-07 21:16:46,649 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 21:16:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7272 states. [2018-11-07 21:16:46,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7272 to 7208. [2018-11-07 21:16:46,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7208 states. [2018-11-07 21:16:46,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7208 states to 7208 states and 11881 transitions. [2018-11-07 21:16:46,899 INFO L78 Accepts]: Start accepts. Automaton has 7208 states and 11881 transitions. Word has length 176 [2018-11-07 21:16:46,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:16:46,899 INFO L480 AbstractCegarLoop]: Abstraction has 7208 states and 11881 transitions. [2018-11-07 21:16:46,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:16:46,900 INFO L276 IsEmpty]: Start isEmpty. Operand 7208 states and 11881 transitions. [2018-11-07 21:16:46,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-11-07 21:16:46,905 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:16:46,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:16:46,907 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:16:46,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:16:46,907 INFO L82 PathProgramCache]: Analyzing trace with hash -680969838, now seen corresponding path program 1 times [2018-11-07 21:16:46,907 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:16:46,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:46,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:16:46,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:46,909 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:16:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:16:47,324 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:16:47,430 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:16:47,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:16:47,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:16:47,431 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:16:47,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:16:47,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:16:47,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:16:47,433 INFO L87 Difference]: Start difference. First operand 7208 states and 11881 transitions. Second operand 6 states. [2018-11-07 21:16:52,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:16:52,784 INFO L93 Difference]: Finished difference Result 17365 states and 29107 transitions. [2018-11-07 21:16:52,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:16:52,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 178 [2018-11-07 21:16:52,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:16:52,835 INFO L225 Difference]: With dead ends: 17365 [2018-11-07 21:16:52,836 INFO L226 Difference]: Without dead ends: 10163 [2018-11-07 21:16:52,860 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 21:16:52,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10163 states. [2018-11-07 21:16:53,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10163 to 10108. [2018-11-07 21:16:53,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10108 states. [2018-11-07 21:16:53,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10108 states to 10108 states and 14258 transitions. [2018-11-07 21:16:53,091 INFO L78 Accepts]: Start accepts. Automaton has 10108 states and 14258 transitions. Word has length 178 [2018-11-07 21:16:53,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:16:53,091 INFO L480 AbstractCegarLoop]: Abstraction has 10108 states and 14258 transitions. [2018-11-07 21:16:53,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:16:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand 10108 states and 14258 transitions. [2018-11-07 21:16:53,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-11-07 21:16:53,099 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:16:53,099 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 21:16:53,100 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:16:53,100 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:16:53,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1490762096, now seen corresponding path program 1 times [2018-11-07 21:16:53,100 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:16:53,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:53,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:16:53,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:16:53,101 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:16:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:16:53,374 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-11-07 21:16:53,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:16:53,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 21:16:53,375 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:16:53,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 21:16:53,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 21:16:53,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:16:53,376 INFO L87 Difference]: Start difference. First operand 10108 states and 14258 transitions. Second operand 4 states. [2018-11-07 21:17:01,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:17:01,343 INFO L93 Difference]: Finished difference Result 28819 states and 41884 transitions. [2018-11-07 21:17:01,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:17:01,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 236 [2018-11-07 21:17:01,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:17:01,425 INFO L225 Difference]: With dead ends: 28819 [2018-11-07 21:17:01,425 INFO L226 Difference]: Without dead ends: 18717 [2018-11-07 21:17:01,466 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:17:01,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18717 states. [2018-11-07 21:17:01,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18717 to 18717. [2018-11-07 21:17:01,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18717 states. [2018-11-07 21:17:01,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18717 states to 18717 states and 26000 transitions. [2018-11-07 21:17:01,859 INFO L78 Accepts]: Start accepts. Automaton has 18717 states and 26000 transitions. Word has length 236 [2018-11-07 21:17:01,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:17:01,860 INFO L480 AbstractCegarLoop]: Abstraction has 18717 states and 26000 transitions. [2018-11-07 21:17:01,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 21:17:01,860 INFO L276 IsEmpty]: Start isEmpty. Operand 18717 states and 26000 transitions. [2018-11-07 21:17:01,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2018-11-07 21:17:01,900 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:17:01,901 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:17:01,901 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:17:01,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:17:01,902 INFO L82 PathProgramCache]: Analyzing trace with hash -205377436, now seen corresponding path program 1 times [2018-11-07 21:17:01,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:17:01,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:17:01,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:17:01,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:17:01,903 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:17:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:17:02,221 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:17:02,341 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 66 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 21:17:02,342 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:17:02,342 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:17:02,343 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 391 with the following transitions: [2018-11-07 21:17:02,346 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2948], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:17:02,412 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:17:02,412 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:17:03,657 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:17:03,659 INFO L272 AbstractInterpreter]: Visited 283 different actions 283 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 21:17:03,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:17:03,712 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:17:04,770 INFO L227 lantSequenceWeakener]: Weakened 381 states. On average, predicates are now at 77.53% of their original sizes. [2018-11-07 21:17:04,770 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:17:05,278 INFO L415 sIntCurrentIteration]: We unified 389 AI predicates to 389 [2018-11-07 21:17:05,279 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:17:05,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:17:05,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2018-11-07 21:17:05,281 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:17:05,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 21:17:05,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 21:17:05,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:17:05,282 INFO L87 Difference]: Start difference. First operand 18717 states and 26000 transitions. Second operand 8 states. [2018-11-07 21:17:16,648 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:17:51,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:17:51,112 INFO L93 Difference]: Finished difference Result 38133 states and 52855 transitions. [2018-11-07 21:17:51,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 21:17:51,113 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 390 [2018-11-07 21:17:51,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:17:51,180 INFO L225 Difference]: With dead ends: 38133 [2018-11-07 21:17:51,181 INFO L226 Difference]: Without dead ends: 19422 [2018-11-07 21:17:51,227 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 391 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 21:17:51,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19422 states. [2018-11-07 21:17:51,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19422 to 19420. [2018-11-07 21:17:51,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19420 states. [2018-11-07 21:17:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19420 states to 19420 states and 26715 transitions. [2018-11-07 21:17:51,612 INFO L78 Accepts]: Start accepts. Automaton has 19420 states and 26715 transitions. Word has length 390 [2018-11-07 21:17:51,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:17:51,612 INFO L480 AbstractCegarLoop]: Abstraction has 19420 states and 26715 transitions. [2018-11-07 21:17:51,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 21:17:51,613 INFO L276 IsEmpty]: Start isEmpty. Operand 19420 states and 26715 transitions. [2018-11-07 21:17:51,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2018-11-07 21:17:51,659 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:17:51,660 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:17:51,660 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:17:51,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:17:51,661 INFO L82 PathProgramCache]: Analyzing trace with hash 750847463, now seen corresponding path program 1 times [2018-11-07 21:17:51,661 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:17:51,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:17:51,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:17:51,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:17:51,664 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:17:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:17:52,279 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 21:17:52,489 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 21:17:52,703 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 21:17:53,137 WARN L179 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 21:17:53,759 WARN L179 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-11-07 21:17:54,262 WARN L179 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-11-07 21:17:54,609 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 158 proven. 267 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 21:17:54,610 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:17:54,610 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:17:54,610 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 578 with the following transitions: [2018-11-07 21:17:54,611 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2948], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:17:54,623 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:17:54,623 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:17:55,893 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:17:55,893 INFO L272 AbstractInterpreter]: Visited 287 different actions 567 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 21:17:55,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:17:55,896 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:17:57,244 INFO L227 lantSequenceWeakener]: Weakened 252 states. On average, predicates are now at 77.53% of their original sizes. [2018-11-07 21:17:57,244 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:17:57,656 INFO L415 sIntCurrentIteration]: We unified 576 AI predicates to 576 [2018-11-07 21:17:57,657 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:17:57,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:17:57,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [11] total 26 [2018-11-07 21:17:57,657 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:17:57,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 21:17:57,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 21:17:57,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2018-11-07 21:17:57,660 INFO L87 Difference]: Start difference. First operand 19420 states and 26715 transitions. Second operand 17 states. [2018-11-07 21:18:34,762 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:19:15,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:19:15,980 INFO L93 Difference]: Finished difference Result 40616 states and 55724 transitions. [2018-11-07 21:19:15,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-07 21:19:15,981 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 577 [2018-11-07 21:19:15,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:19:16,041 INFO L225 Difference]: With dead ends: 40616 [2018-11-07 21:19:16,042 INFO L226 Difference]: Without dead ends: 21905 [2018-11-07 21:19:16,084 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 588 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=639, Unknown=0, NotChecked=0, Total=812 [2018-11-07 21:19:16,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21905 states. [2018-11-07 21:19:16,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21905 to 21666. [2018-11-07 21:19:16,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21666 states. [2018-11-07 21:19:16,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21666 states to 21666 states and 29001 transitions. [2018-11-07 21:19:16,428 INFO L78 Accepts]: Start accepts. Automaton has 21666 states and 29001 transitions. Word has length 577 [2018-11-07 21:19:16,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:19:16,429 INFO L480 AbstractCegarLoop]: Abstraction has 21666 states and 29001 transitions. [2018-11-07 21:19:16,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-07 21:19:16,429 INFO L276 IsEmpty]: Start isEmpty. Operand 21666 states and 29001 transitions. [2018-11-07 21:19:16,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 919 [2018-11-07 21:19:16,489 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:19:16,490 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:19:16,491 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:19:16,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:19:16,491 INFO L82 PathProgramCache]: Analyzing trace with hash -399516564, now seen corresponding path program 1 times [2018-11-07 21:19:16,492 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:19:16,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:19:16,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:19:16,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:19:16,493 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:19:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:19:17,301 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-11-07 21:19:17,652 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-07 21:19:19,291 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 105 proven. 411 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 21:19:19,292 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:19:19,292 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:19:19,292 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 919 with the following transitions: [2018-11-07 21:19:19,293 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1843], [1845], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2948], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:19:19,305 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:19:19,305 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:19:20,774 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:19:20,775 INFO L272 AbstractInterpreter]: Visited 537 different actions 1070 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 21:19:20,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:19:20,776 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:19:21,804 INFO L227 lantSequenceWeakener]: Weakened 422 states. On average, predicates are now at 77.64% of their original sizes. [2018-11-07 21:19:21,805 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:19:22,648 INFO L415 sIntCurrentIteration]: We unified 917 AI predicates to 917 [2018-11-07 21:19:22,648 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:19:22,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:19:22,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [35] imperfect sequences [9] total 42 [2018-11-07 21:19:22,650 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:19:22,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-11-07 21:19:22,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-11-07 21:19:22,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1037, Unknown=0, NotChecked=0, Total=1190 [2018-11-07 21:19:22,652 INFO L87 Difference]: Start difference. First operand 21666 states and 29001 transitions. Second operand 35 states. Received shutdown request... [2018-11-07 21:19:35,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 21:19:35,718 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 21:19:35,723 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 21:19:35,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:19:35 BoogieIcfgContainer [2018-11-07 21:19:35,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 21:19:35,724 INFO L168 Benchmark]: Toolchain (without parser) took 208225.85 ms. Allocated memory was 1.5 GB in the beginning and 5.4 GB in the end (delta: 3.9 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-11-07 21:19:35,726 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 21:19:35,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1923.76 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-07 21:19:35,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 297.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 769.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -963.6 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. [2018-11-07 21:19:35,728 INFO L168 Benchmark]: Boogie Preprocessor took 229.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-11-07 21:19:35,728 INFO L168 Benchmark]: RCFGBuilder took 8631.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 513.9 MB). Peak memory consumption was 513.9 MB. Max. memory is 7.1 GB. [2018-11-07 21:19:35,729 INFO L168 Benchmark]: TraceAbstraction took 197138.23 ms. Allocated memory was 2.3 GB in the beginning and 5.4 GB in the end (delta: 3.1 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-07 21:19:35,734 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 1923.76 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 297.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 769.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -963.6 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 229.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8631.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 513.9 MB). Peak memory consumption was 513.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 197138.23 ms. Allocated memory was 2.3 GB in the beginning and 5.4 GB in the end (delta: 3.1 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 108). Cancelled while BasicCegarLoop was constructing difference of abstraction (21666states) and FLOYD_HOARE automaton (currently 10 states, 35 states before enhancement),while ReachableStatesComputation was computing reachable states (264 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 197.0s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 176.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2259 SDtfs, 18190 SDslu, 1307 SDs, 0 SdLazy, 42306 SolverSat, 7026 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 74.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1942 GetRequests, 1839 SyntacticMatches, 5 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21666occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.1s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.998445409801276 AbsIntWeakeningRatio, 0.052072263549415514 AbsIntAvgWeakeningVarsNumRemoved, 14.619022316684378 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 383 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 2644 NumberOfCodeBlocks, 2644 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2636 ConstructedInterpolants, 0 QuantifiedInterpolants, 6388749 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 598/1343 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown