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/Problem19_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 09:50:23,462 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 09:50:23,464 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 09:50:23,476 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 09:50:23,476 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 09:50:23,477 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 09:50:23,478 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 09:50:23,480 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 09:50:23,482 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 09:50:23,483 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 09:50:23,484 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 09:50:23,484 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 09:50:23,485 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 09:50:23,486 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 09:50:23,487 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 09:50:23,488 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 09:50:23,489 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 09:50:23,491 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 09:50:23,493 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 09:50:23,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 09:50:23,496 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 09:50:23,497 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 09:50:23,499 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 09:50:23,503 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 09:50:23,503 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 09:50:23,504 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 09:50:23,505 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 09:50:23,510 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 09:50:23,511 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 09:50:23,513 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 09:50:23,513 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 09:50:23,513 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 09:50:23,514 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 09:50:23,514 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 09:50:23,516 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 09:50:23,517 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 09:50:23,518 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 09:50:23,548 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 09:50:23,548 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 09:50:23,549 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 09:50:23,549 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 09:50:23,550 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 09:50:23,551 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 09:50:23,551 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 09:50:23,551 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 09:50:23,551 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 09:50:23,551 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 09:50:23,552 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 09:50:23,552 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 09:50:23,552 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 09:50:23,552 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 09:50:23,553 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 09:50:23,554 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 09:50:23,554 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 09:50:23,554 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 09:50:23,554 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 09:50:23,554 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 09:50:23,557 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 09:50:23,557 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 09:50:23,557 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 09:50:23,557 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 09:50:23,557 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 09:50:23,558 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 09:50:23,558 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:50:23,558 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 09:50:23,558 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 09:50:23,558 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 09:50:23,559 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 09:50:23,559 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 09:50:23,559 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 09:50:23,559 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 09:50:23,559 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 09:50:23,559 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 09:50:23,622 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 09:50:23,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 09:50:23,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 09:50:23,647 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 09:50:23,648 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 09:50:23,648 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label44_true-unreach-call.c [2018-11-07 09:50:23,713 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e753bce2/1edb9c758ec148899bd5c0d31ef44f8b/FLAG169786fc4 [2018-11-07 09:50:24,584 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 09:50:24,586 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label44_true-unreach-call.c [2018-11-07 09:50:24,644 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e753bce2/1edb9c758ec148899bd5c0d31ef44f8b/FLAG169786fc4 [2018-11-07 09:50:24,667 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e753bce2/1edb9c758ec148899bd5c0d31ef44f8b [2018-11-07 09:50:24,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 09:50:24,684 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 09:50:24,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 09:50:24,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 09:50:24,692 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 09:50:24,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:50:24" (1/1) ... [2018-11-07 09:50:24,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d6e334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:24, skipping insertion in model container [2018-11-07 09:50:24,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:50:24" (1/1) ... [2018-11-07 09:50:24,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 09:50:24,999 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 09:50:26,962 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:50:26,967 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 09:50:27,973 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:50:28,026 INFO L193 MainTranslator]: Completed translation [2018-11-07 09:50:28,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:28 WrapperNode [2018-11-07 09:50:28,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 09:50:28,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 09:50:28,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 09:50:28,029 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 09:50:28,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:28" (1/1) ... [2018-11-07 09:50:28,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:28" (1/1) ... [2018-11-07 09:50:28,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 09:50:28,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 09:50:28,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 09:50:28,559 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 09:50:28,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:28" (1/1) ... [2018-11-07 09:50:28,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:28" (1/1) ... [2018-11-07 09:50:28,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:28" (1/1) ... [2018-11-07 09:50:28,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:28" (1/1) ... [2018-11-07 09:50:28,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:28" (1/1) ... [2018-11-07 09:50:28,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:28" (1/1) ... [2018-11-07 09:50:28,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:28" (1/1) ... [2018-11-07 09:50:28,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 09:50:28,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 09:50:28,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 09:50:28,976 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 09:50:28,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:28" (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 09:50:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 09:50:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 09:50:29,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 09:50:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-07 09:50:29,043 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-07 09:50:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-07 09:50:29,044 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-07 09:50:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 09:50:29,044 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 09:50:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 09:50:29,045 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 09:50:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 09:50:29,045 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 09:50:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 09:50:29,046 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 09:50:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 09:50:29,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 09:50:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 09:50:29,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 09:50:44,872 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 09:50:44,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:50:44 BoogieIcfgContainer [2018-11-07 09:50:44,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 09:50:44,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 09:50:44,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 09:50:44,878 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 09:50:44,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:50:24" (1/3) ... [2018-11-07 09:50:44,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac7ac0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:50:44, skipping insertion in model container [2018-11-07 09:50:44,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:50:28" (2/3) ... [2018-11-07 09:50:44,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac7ac0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:50:44, skipping insertion in model container [2018-11-07 09:50:44,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:50:44" (3/3) ... [2018-11-07 09:50:44,881 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label44_true-unreach-call.c [2018-11-07 09:50:44,892 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 09:50:44,904 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 09:50:44,919 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 09:50:44,983 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 09:50:44,983 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 09:50:44,983 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 09:50:44,983 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 09:50:44,983 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 09:50:44,983 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 09:50:44,984 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 09:50:44,984 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 09:50:45,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-07 09:50:45,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-07 09:50:45,052 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:50:45,053 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] [2018-11-07 09:50:45,056 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:50:45,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:50:45,061 INFO L82 PathProgramCache]: Analyzing trace with hash -6596318, now seen corresponding path program 1 times [2018-11-07 09:50:45,063 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:50:45,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:50:45,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:50:45,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:50:45,119 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:50:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:50:45,554 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:50:45,691 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 09:50:45,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:50:45,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 09:50:45,696 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:50:45,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 09:50:45,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 09:50:45,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:50:45,737 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-11-07 09:50:58,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:50:58,476 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-11-07 09:50:58,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 09:50:58,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2018-11-07 09:50:58,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:50:58,537 INFO L225 Difference]: With dead ends: 4998 [2018-11-07 09:50:58,537 INFO L226 Difference]: Without dead ends: 3218 [2018-11-07 09:50:58,550 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 09:50:58,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-11-07 09:50:58,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-11-07 09:50:58,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-11-07 09:50:58,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-11-07 09:50:58,765 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 41 [2018-11-07 09:50:58,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:50:58,765 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-11-07 09:50:58,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 09:50:58,766 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-11-07 09:50:58,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-11-07 09:50:58,773 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:50:58,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:58,774 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:50:58,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:50:58,774 INFO L82 PathProgramCache]: Analyzing trace with hash -337507924, now seen corresponding path program 1 times [2018-11-07 09:50:58,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:50:58,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:50:58,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:50:58,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:50:58,776 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:50:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:50:59,154 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:50:59,523 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:50:59,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:50:59,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:50:59,523 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:50:59,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:50:59,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:50:59,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:50:59,527 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-11-07 09:51:21,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:51:21,485 INFO L93 Difference]: Finished difference Result 9340 states and 16946 transitions. [2018-11-07 09:51:21,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:51:21,496 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-11-07 09:51:21,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:51:21,537 INFO L225 Difference]: With dead ends: 9340 [2018-11-07 09:51:21,537 INFO L226 Difference]: Without dead ends: 6131 [2018-11-07 09:51:21,548 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:51:21,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2018-11-07 09:51:21,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6091. [2018-11-07 09:51:21,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6091 states. [2018-11-07 09:51:21,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6091 states to 6091 states and 9637 transitions. [2018-11-07 09:51:21,710 INFO L78 Accepts]: Start accepts. Automaton has 6091 states and 9637 transitions. Word has length 113 [2018-11-07 09:51:21,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:51:21,711 INFO L480 AbstractCegarLoop]: Abstraction has 6091 states and 9637 transitions. [2018-11-07 09:51:21,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:51:21,711 INFO L276 IsEmpty]: Start isEmpty. Operand 6091 states and 9637 transitions. [2018-11-07 09:51:21,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-11-07 09:51:21,715 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:51:21,715 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:51:21,716 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:51:21,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:51:21,716 INFO L82 PathProgramCache]: Analyzing trace with hash -392526345, now seen corresponding path program 1 times [2018-11-07 09:51:21,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:51:21,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:51:21,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:51:21,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:51:21,718 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:51:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:51:22,036 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:51:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:51:22,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:51:22,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:51:22,131 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:51:22,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:51:22,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:51:22,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:51:22,133 INFO L87 Difference]: Start difference. First operand 6091 states and 9637 transitions. Second operand 6 states. [2018-11-07 09:51:42,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:51:42,379 INFO L93 Difference]: Finished difference Result 21091 states and 34228 transitions. [2018-11-07 09:51:42,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:51:42,381 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-11-07 09:51:42,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:51:42,448 INFO L225 Difference]: With dead ends: 21091 [2018-11-07 09:51:42,449 INFO L226 Difference]: Without dead ends: 15006 [2018-11-07 09:51:42,472 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 09:51:42,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15006 states. [2018-11-07 09:51:42,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15006 to 14817. [2018-11-07 09:51:42,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14817 states. [2018-11-07 09:51:42,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14817 states to 14817 states and 22424 transitions. [2018-11-07 09:51:42,826 INFO L78 Accepts]: Start accepts. Automaton has 14817 states and 22424 transitions. Word has length 115 [2018-11-07 09:51:42,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:51:42,827 INFO L480 AbstractCegarLoop]: Abstraction has 14817 states and 22424 transitions. [2018-11-07 09:51:42,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:51:42,827 INFO L276 IsEmpty]: Start isEmpty. Operand 14817 states and 22424 transitions. [2018-11-07 09:51:42,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-11-07 09:51:42,839 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:51:42,844 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:51:42,844 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:51:42,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:51:42,845 INFO L82 PathProgramCache]: Analyzing trace with hash 2002482604, now seen corresponding path program 1 times [2018-11-07 09:51:42,845 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:51:42,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:51:42,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:51:42,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:51:42,846 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:51:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:51:43,190 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:51:43,190 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:51:43,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 09:51:43,191 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:51:43,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 09:51:43,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 09:51:43,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 09:51:43,192 INFO L87 Difference]: Start difference. First operand 14817 states and 22424 transitions. Second operand 5 states. [2018-11-07 09:51:59,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:51:59,895 INFO L93 Difference]: Finished difference Result 45159 states and 70155 transitions. [2018-11-07 09:51:59,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:51:59,902 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2018-11-07 09:51:59,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:52:00,020 INFO L225 Difference]: With dead ends: 45159 [2018-11-07 09:52:00,020 INFO L226 Difference]: Without dead ends: 30348 [2018-11-07 09:52:00,061 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-07 09:52:00,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30348 states. [2018-11-07 09:52:00,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30348 to 29949. [2018-11-07 09:52:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29949 states. [2018-11-07 09:52:00,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29949 states to 29949 states and 41233 transitions. [2018-11-07 09:52:00,723 INFO L78 Accepts]: Start accepts. Automaton has 29949 states and 41233 transitions. Word has length 146 [2018-11-07 09:52:00,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:52:00,724 INFO L480 AbstractCegarLoop]: Abstraction has 29949 states and 41233 transitions. [2018-11-07 09:52:00,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 09:52:00,724 INFO L276 IsEmpty]: Start isEmpty. Operand 29949 states and 41233 transitions. [2018-11-07 09:52:00,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-11-07 09:52:00,733 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:52:00,733 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 09:52:00,733 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:52:00,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:52:00,734 INFO L82 PathProgramCache]: Analyzing trace with hash -995199702, now seen corresponding path program 1 times [2018-11-07 09:52:00,734 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:52:00,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:52:00,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:52:00,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:52:00,735 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:52:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:52:00,990 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:52:01,378 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 68 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 09:52:01,378 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:52:01,379 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:52:01,380 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-11-07 09:52:01,382 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5454], [5456], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5719], [5722], [5726], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5877], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-07 09:52:01,431 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:52:01,432 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:52:01,977 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:52:01,978 INFO L272 AbstractInterpreter]: Visited 104 different actions 104 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 09:52:02,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:52:02,022 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:52:02,412 INFO L227 lantSequenceWeakener]: Weakened 201 states. On average, predicates are now at 75.44% of their original sizes. [2018-11-07 09:52:02,413 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:52:02,625 INFO L415 sIntCurrentIteration]: We unified 211 AI predicates to 211 [2018-11-07 09:52:02,625 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:52:02,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:52:02,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-07 09:52:02,626 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:52:02,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:52:02,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:52:02,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:52:02,628 INFO L87 Difference]: Start difference. First operand 29949 states and 41233 transitions. Second operand 6 states. Received shutdown request... [2018-11-07 09:54:19,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 09:54:19,822 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 09:54:19,827 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 09:54:19,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:54:19 BoogieIcfgContainer [2018-11-07 09:54:19,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 09:54:19,829 INFO L168 Benchmark]: Toolchain (without parser) took 235145.15 ms. Allocated memory was 1.6 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-07 09:54:19,830 INFO L168 Benchmark]: CDTParser took 2.36 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 09:54:19,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3341.58 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. [2018-11-07 09:54:19,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 530.25 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 877.1 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. [2018-11-07 09:54:19,832 INFO L168 Benchmark]: Boogie Preprocessor took 416.13 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 50.2 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. [2018-11-07 09:54:19,833 INFO L168 Benchmark]: RCFGBuilder took 15898.02 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 130.5 MB). Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 550.4 MB). Peak memory consumption was 680.9 MB. Max. memory is 7.1 GB. [2018-11-07 09:54:19,834 INFO L168 Benchmark]: TraceAbstraction took 214953.83 ms. Allocated memory was 2.6 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 2.8 GB in the end (delta: -1.0 GB). Peak memory consumption was 691.5 MB. Max. memory is 7.1 GB. [2018-11-07 09:54:19,840 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.36 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3341.58 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 530.25 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 877.1 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 416.13 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 50.2 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15898.02 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 130.5 MB). Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 550.4 MB). Peak memory consumption was 680.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214953.83 ms. Allocated memory was 2.6 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 2.8 GB in the end (delta: -1.0 GB). Peak memory consumption was 691.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 118). Cancelled while BasicCegarLoop was constructing difference of abstraction (29949states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (18809 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 214.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 209.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3127 SDtfs, 22360 SDslu, 3187 SDs, 0 SdLazy, 40768 SolverSat, 9386 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 176.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 245 GetRequests, 216 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29949occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9977583375481585 AbsIntWeakeningRatio, 0.13270142180094788 AbsIntAvgWeakeningVarsNumRemoved, 17.09478672985782 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 631 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 627 NumberOfCodeBlocks, 627 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 622 ConstructedInterpolants, 0 QuantifiedInterpolants, 301082 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 175/240 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown