java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 08:47:11,580 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 08:47:11,582 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 08:47:11,598 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 08:47:11,598 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 08:47:11,600 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 08:47:11,601 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 08:47:11,603 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 08:47:11,604 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 08:47:11,605 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 08:47:11,606 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 08:47:11,607 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 08:47:11,608 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 08:47:11,609 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 08:47:11,610 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 08:47:11,611 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 08:47:11,611 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 08:47:11,613 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 08:47:11,615 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 08:47:11,617 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 08:47:11,618 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 08:47:11,619 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 08:47:11,622 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 08:47:11,622 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 08:47:11,623 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 08:47:11,624 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 08:47:11,625 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 08:47:11,625 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 08:47:11,626 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 08:47:11,627 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 08:47:11,628 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 08:47:11,628 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 08:47:11,629 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 08:47:11,629 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 08:47:11,630 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 08:47:11,631 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 08:47:11,631 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 08:47:11,649 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 08:47:11,649 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 08:47:11,650 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 08:47:11,650 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 08:47:11,650 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 08:47:11,651 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 08:47:11,651 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 08:47:11,651 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 08:47:11,651 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 08:47:11,651 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 08:47:11,652 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 08:47:11,652 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 08:47:11,652 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 08:47:11,652 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 08:47:11,653 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 08:47:11,653 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 08:47:11,653 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 08:47:11,653 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 08:47:11,654 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 08:47:11,654 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 08:47:11,654 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 08:47:11,654 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 08:47:11,654 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 08:47:11,655 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 08:47:11,655 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 08:47:11,655 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 08:47:11,655 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:47:11,655 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 08:47:11,656 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 08:47:11,656 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 08:47:11,656 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 08:47:11,656 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 08:47:11,656 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 08:47:11,657 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 08:47:11,657 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 08:47:11,657 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 08:47:11,712 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 08:47:11,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 08:47:11,728 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 08:47:11,730 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 08:47:11,730 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 08:47:11,731 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label05_true-unreach-call.c [2018-11-07 08:47:11,792 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a1095469/a6dab65686a443aeb2c32f7fcf16f550/FLAG72b806c34 [2018-11-07 08:47:12,584 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 08:47:12,585 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label05_true-unreach-call.c [2018-11-07 08:47:12,622 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a1095469/a6dab65686a443aeb2c32f7fcf16f550/FLAG72b806c34 [2018-11-07 08:47:12,638 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a1095469/a6dab65686a443aeb2c32f7fcf16f550 [2018-11-07 08:47:12,652 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 08:47:12,654 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 08:47:12,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 08:47:12,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 08:47:12,661 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 08:47:12,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:47:12" (1/1) ... [2018-11-07 08:47:12,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae48c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:12, skipping insertion in model container [2018-11-07 08:47:12,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:47:12" (1/1) ... [2018-11-07 08:47:12,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 08:47:12,887 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 08:47:14,457 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:47:14,464 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 08:47:15,550 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:47:15,591 INFO L193 MainTranslator]: Completed translation [2018-11-07 08:47:15,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:15 WrapperNode [2018-11-07 08:47:15,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 08:47:15,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 08:47:15,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 08:47:15,594 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 08:47:15,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:15" (1/1) ... [2018-11-07 08:47:16,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:15" (1/1) ... [2018-11-07 08:47:16,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 08:47:16,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 08:47:16,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 08:47:16,105 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 08:47:16,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:15" (1/1) ... [2018-11-07 08:47:16,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:15" (1/1) ... [2018-11-07 08:47:16,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:15" (1/1) ... [2018-11-07 08:47:16,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:15" (1/1) ... [2018-11-07 08:47:16,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:15" (1/1) ... [2018-11-07 08:47:16,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:15" (1/1) ... [2018-11-07 08:47:16,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:15" (1/1) ... [2018-11-07 08:47:16,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 08:47:16,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 08:47:16,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 08:47:16,450 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 08:47:16,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:15" (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 08:47:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 08:47:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 08:47:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 08:47:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 08:47:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 08:47:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 08:47:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 08:47:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 08:47:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 08:47:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 08:47:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 08:47:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 08:47:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 08:47:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 08:47:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 08:47:28,257 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 08:47:28,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:47:28 BoogieIcfgContainer [2018-11-07 08:47:28,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 08:47:28,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 08:47:28,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 08:47:28,263 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 08:47:28,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:47:12" (1/3) ... [2018-11-07 08:47:28,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d1f53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:47:28, skipping insertion in model container [2018-11-07 08:47:28,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:47:15" (2/3) ... [2018-11-07 08:47:28,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d1f53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:47:28, skipping insertion in model container [2018-11-07 08:47:28,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:47:28" (3/3) ... [2018-11-07 08:47:28,267 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label05_true-unreach-call.c [2018-11-07 08:47:28,277 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 08:47:28,289 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 08:47:28,308 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 08:47:28,367 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 08:47:28,367 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 08:47:28,367 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 08:47:28,367 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 08:47:28,368 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 08:47:28,368 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 08:47:28,368 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 08:47:28,368 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 08:47:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 08:47:28,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-07 08:47:28,424 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:47:28,425 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] [2018-11-07 08:47:28,428 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:47:28,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:47:28,435 INFO L82 PathProgramCache]: Analyzing trace with hash -192700485, now seen corresponding path program 1 times [2018-11-07 08:47:28,437 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:47:28,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:28,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:47:28,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:28,497 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:47:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:47:28,976 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 08:47:28,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:47:28,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 08:47:28,979 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:47:28,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 08:47:29,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 08:47:29,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:47:29,006 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-11-07 08:47:41,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:47:41,309 INFO L93 Difference]: Finished difference Result 3968 states and 7392 transitions. [2018-11-07 08:47:41,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 08:47:41,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2018-11-07 08:47:41,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:47:41,378 INFO L225 Difference]: With dead ends: 3968 [2018-11-07 08:47:41,378 INFO L226 Difference]: Without dead ends: 2842 [2018-11-07 08:47:41,397 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 08:47:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2018-11-07 08:47:41,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1981. [2018-11-07 08:47:41,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2018-11-07 08:47:41,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 3456 transitions. [2018-11-07 08:47:41,596 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 3456 transitions. Word has length 49 [2018-11-07 08:47:41,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:47:41,597 INFO L480 AbstractCegarLoop]: Abstraction has 1981 states and 3456 transitions. [2018-11-07 08:47:41,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 08:47:41,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 3456 transitions. [2018-11-07 08:47:41,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-07 08:47:41,604 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:47:41,604 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:41,605 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:47:41,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:47:41,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1544921282, now seen corresponding path program 1 times [2018-11-07 08:47:41,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:47:41,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:41,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:47:41,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:41,607 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:47:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:47:41,942 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:47:41,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:47:41,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 08:47:41,943 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:47:41,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 08:47:41,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 08:47:41,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 08:47:41,946 INFO L87 Difference]: Start difference. First operand 1981 states and 3456 transitions. Second operand 5 states. [2018-11-07 08:47:54,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:47:54,296 INFO L93 Difference]: Finished difference Result 5673 states and 10081 transitions. [2018-11-07 08:47:54,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:47:54,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2018-11-07 08:47:54,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:47:54,327 INFO L225 Difference]: With dead ends: 5673 [2018-11-07 08:47:54,328 INFO L226 Difference]: Without dead ends: 3698 [2018-11-07 08:47:54,337 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 08:47:54,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2018-11-07 08:47:54,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3687. [2018-11-07 08:47:54,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3687 states. [2018-11-07 08:47:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5870 transitions. [2018-11-07 08:47:54,465 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5870 transitions. Word has length 119 [2018-11-07 08:47:54,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:47:54,466 INFO L480 AbstractCegarLoop]: Abstraction has 3687 states and 5870 transitions. [2018-11-07 08:47:54,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 08:47:54,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5870 transitions. [2018-11-07 08:47:54,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-07 08:47:54,478 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:47:54,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:54,479 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:47:54,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:47:54,479 INFO L82 PathProgramCache]: Analyzing trace with hash 745803618, now seen corresponding path program 1 times [2018-11-07 08:47:54,479 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:47:54,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:54,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:47:54,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:47:54,483 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:47:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:47:54,703 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:47:54,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:47:54,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 08:47:54,704 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:47:54,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 08:47:54,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 08:47:54,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 08:47:54,706 INFO L87 Difference]: Start difference. First operand 3687 states and 5870 transitions. Second operand 5 states. [2018-11-07 08:48:03,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:48:03,585 INFO L93 Difference]: Finished difference Result 10955 states and 17866 transitions. [2018-11-07 08:48:03,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 08:48:03,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2018-11-07 08:48:03,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:48:03,637 INFO L225 Difference]: With dead ends: 10955 [2018-11-07 08:48:03,637 INFO L226 Difference]: Without dead ends: 7274 [2018-11-07 08:48:03,656 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 08:48:03,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7274 states. [2018-11-07 08:48:03,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7274 to 7167. [2018-11-07 08:48:03,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7167 states. [2018-11-07 08:48:03,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7167 states to 7167 states and 10519 transitions. [2018-11-07 08:48:03,881 INFO L78 Accepts]: Start accepts. Automaton has 7167 states and 10519 transitions. Word has length 121 [2018-11-07 08:48:03,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:48:03,882 INFO L480 AbstractCegarLoop]: Abstraction has 7167 states and 10519 transitions. [2018-11-07 08:48:03,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 08:48:03,882 INFO L276 IsEmpty]: Start isEmpty. Operand 7167 states and 10519 transitions. [2018-11-07 08:48:03,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-11-07 08:48:03,887 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:48:03,892 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:03,892 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:48:03,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:48:03,893 INFO L82 PathProgramCache]: Analyzing trace with hash -2075646886, now seen corresponding path program 1 times [2018-11-07 08:48:03,893 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:48:03,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:48:03,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:48:03,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:48:03,894 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:48:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:48:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:48:04,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:48:04,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 08:48:04,119 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:48:04,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 08:48:04,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 08:48:04,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:48:04,121 INFO L87 Difference]: Start difference. First operand 7167 states and 10519 transitions. Second operand 4 states. [2018-11-07 08:48:13,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:48:13,164 INFO L93 Difference]: Finished difference Result 27645 states and 43286 transitions. [2018-11-07 08:48:13,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 08:48:13,169 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2018-11-07 08:48:13,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:48:13,269 INFO L225 Difference]: With dead ends: 27645 [2018-11-07 08:48:13,270 INFO L226 Difference]: Without dead ends: 20484 [2018-11-07 08:48:13,323 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:48:13,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20484 states. [2018-11-07 08:48:13,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20484 to 20445. [2018-11-07 08:48:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20445 states. [2018-11-07 08:48:13,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20445 states to 20445 states and 29105 transitions. [2018-11-07 08:48:13,889 INFO L78 Accepts]: Start accepts. Automaton has 20445 states and 29105 transitions. Word has length 165 [2018-11-07 08:48:13,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:48:13,889 INFO L480 AbstractCegarLoop]: Abstraction has 20445 states and 29105 transitions. [2018-11-07 08:48:13,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 08:48:13,890 INFO L276 IsEmpty]: Start isEmpty. Operand 20445 states and 29105 transitions. [2018-11-07 08:48:13,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-11-07 08:48:13,894 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:48:13,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:13,894 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:48:13,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:48:13,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1150006652, now seen corresponding path program 1 times [2018-11-07 08:48:13,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:48:13,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:48:13,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:48:13,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:48:13,899 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:48:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:48:14,237 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:48:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:48:14,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:48:14,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 08:48:14,314 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:48:14,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:48:14,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:48:14,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:48:14,315 INFO L87 Difference]: Start difference. First operand 20445 states and 29105 transitions. Second operand 3 states. [2018-11-07 08:48:21,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:48:21,708 INFO L93 Difference]: Finished difference Result 58930 states and 88518 transitions. [2018-11-07 08:48:21,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:48:21,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2018-11-07 08:48:21,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:48:21,914 INFO L225 Difference]: With dead ends: 58930 [2018-11-07 08:48:21,914 INFO L226 Difference]: Without dead ends: 38491 [2018-11-07 08:48:22,017 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 08:48:22,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38491 states. [2018-11-07 08:48:23,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38491 to 38484. [2018-11-07 08:48:23,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38484 states. [2018-11-07 08:48:23,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38484 states to 38484 states and 54005 transitions. [2018-11-07 08:48:23,178 INFO L78 Accepts]: Start accepts. Automaton has 38484 states and 54005 transitions. Word has length 170 [2018-11-07 08:48:23,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:48:23,179 INFO L480 AbstractCegarLoop]: Abstraction has 38484 states and 54005 transitions. [2018-11-07 08:48:23,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:48:23,179 INFO L276 IsEmpty]: Start isEmpty. Operand 38484 states and 54005 transitions. [2018-11-07 08:48:23,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-11-07 08:48:23,246 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:48:23,246 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 08:48:23,246 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:48:23,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:48:23,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1475529496, now seen corresponding path program 1 times [2018-11-07 08:48:23,247 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:48:23,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:48:23,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:48:23,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:48:23,248 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:48:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:48:23,790 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:48:24,387 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 85 proven. 23 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-11-07 08:48:24,387 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:48:24,387 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:48:24,388 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 394 with the following transitions: [2018-11-07 08:48:24,398 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2919], [2921], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3525], [3529], [3533], [3537], [3541], [3545], [3556], [3560], [3564], [3568], [3572], [3576], [3580], [3591], [3595], [3599], [3603], [3614], [3618], [3622], [3626], [3630], [3634], [3638], [3642], [3646], [3650], [3654], [3658], [3662], [3666], [3670], [3674], [3678], [3682], [3686], [3690], [3694], [3698], [3709], [3713], [3717], [3721], [3725], [3729], [3733], [3737], [3741], [3745], [3749], [3753], [3757], [3768], [3772], [3776], [3780], [3784], [3788], [3792], [3796], [3800], [3804], [3807], [3812], [3814], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 08:48:24,482 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:48:24,483 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:48:26,385 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:48:26,387 INFO L272 AbstractInterpreter]: Visited 220 different actions 647 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 08:48:26,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:48:26,431 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:48:27,226 INFO L227 lantSequenceWeakener]: Weakened 388 states. On average, predicates are now at 77.96% of their original sizes. [2018-11-07 08:48:27,226 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:48:27,640 INFO L415 sIntCurrentIteration]: We unified 392 AI predicates to 392 [2018-11-07 08:48:27,640 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:48:27,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:48:27,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-07 08:48:27,642 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:48:27,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 08:48:27,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 08:48:27,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:48:27,643 INFO L87 Difference]: Start difference. First operand 38484 states and 54005 transitions. Second operand 10 states. Received shutdown request... [2018-11-07 08:50:58,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 08:50:58,588 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 08:50:58,595 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 08:50:58,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:50:58 BoogieIcfgContainer [2018-11-07 08:50:58,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 08:50:58,597 INFO L168 Benchmark]: Toolchain (without parser) took 225944.05 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 968.1 MB. Max. memory is 7.1 GB. [2018-11-07 08:50:58,598 INFO L168 Benchmark]: CDTParser took 0.23 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 08:50:58,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2937.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-11-07 08:50:58,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 511.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 781.7 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2018-11-07 08:50:58,601 INFO L168 Benchmark]: Boogie Preprocessor took 344.55 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: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. [2018-11-07 08:50:58,601 INFO L168 Benchmark]: RCFGBuilder took 11808.10 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 202.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -48.0 MB). Peak memory consumption was 705.8 MB. Max. memory is 7.1 GB. [2018-11-07 08:50:58,603 INFO L168 Benchmark]: TraceAbstraction took 210336.56 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 3.0 GB in the end (delta: -740.6 MB). Peak memory consumption was 831.2 MB. Max. memory is 7.1 GB. [2018-11-07 08:50:58,611 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2937.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 511.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 781.7 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 344.55 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: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11808.10 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 202.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -48.0 MB). Peak memory consumption was 705.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210336.56 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 3.0 GB in the end (delta: -740.6 MB). Peak memory consumption was 831.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 138). Cancelled while BasicCegarLoop was constructing difference of abstraction (38484states) and FLOYD_HOARE automaton (currently 20 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (22584 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 210.2s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 201.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3394 SDtfs, 14643 SDslu, 2584 SDs, 0 SdLazy, 24456 SolverSat, 6272 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 161.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 436 GetRequests, 398 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38484occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9981319021585672 AbsIntWeakeningRatio, 0.07397959183673469 AbsIntAvgWeakeningVarsNumRemoved, 13.612244897959183 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 1025 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1017 NumberOfCodeBlocks, 1017 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1011 ConstructedInterpolants, 0 QuantifiedInterpolants, 803183 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 359/382 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown