java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-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_label23_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 02:12:15,240 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 02:12:15,242 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 02:12:15,255 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 02:12:15,255 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 02:12:15,256 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 02:12:15,258 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 02:12:15,260 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 02:12:15,261 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 02:12:15,262 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 02:12:15,263 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 02:12:15,263 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 02:12:15,264 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 02:12:15,265 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 02:12:15,267 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 02:12:15,267 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 02:12:15,268 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 02:12:15,270 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 02:12:15,272 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 02:12:15,274 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 02:12:15,275 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 02:12:15,277 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 02:12:15,279 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 02:12:15,280 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 02:12:15,280 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 02:12:15,281 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 02:12:15,282 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 02:12:15,283 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 02:12:15,284 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 02:12:15,285 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 02:12:15,285 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 02:12:15,286 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-25 02:12:15,286 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-25 02:12:15,287 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-25 02:12:15,288 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-25 02:12:15,289 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-25 02:12:15,289 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 02:12:15,305 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 02:12:15,306 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 02:12:15,306 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 02:12:15,307 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 02:12:15,307 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 02:12:15,307 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 02:12:15,307 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 02:12:15,308 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 02:12:15,308 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 02:12:15,308 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 02:12:15,308 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 02:12:15,308 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 02:12:15,309 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 02:12:15,309 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 02:12:15,309 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 02:12:15,310 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 02:12:15,310 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 02:12:15,310 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 02:12:15,310 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 02:12:15,310 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 02:12:15,311 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 02:12:15,311 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 02:12:15,311 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 02:12:15,311 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 02:12:15,311 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 02:12:15,312 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 02:12:15,312 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 02:12:15,312 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 02:12:15,312 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 02:12:15,312 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 02:12:15,313 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 02:12:15,313 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 02:12:15,313 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 02:12:15,313 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 02:12:15,314 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 02:12:15,314 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 02:12:15,367 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 02:12:15,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 02:12:15,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 02:12:15,386 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 02:12:15,387 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 02:12:15,387 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c [2018-10-25 02:12:15,452 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/201e76648/d33651e1ee284a499ea1bbc44e97fcf3/FLAG9f867a5f7 [2018-10-25 02:12:16,339 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 02:12:16,340 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c [2018-10-25 02:12:16,390 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/201e76648/d33651e1ee284a499ea1bbc44e97fcf3/FLAG9f867a5f7 [2018-10-25 02:12:16,410 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/201e76648/d33651e1ee284a499ea1bbc44e97fcf3 [2018-10-25 02:12:16,425 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 02:12:16,427 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 02:12:16,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 02:12:16,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 02:12:16,437 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 02:12:16,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:12:16" (1/1) ... [2018-10-25 02:12:16,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1803bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:16, skipping insertion in model container [2018-10-25 02:12:16,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:12:16" (1/1) ... [2018-10-25 02:12:16,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 02:12:16,723 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 02:12:18,935 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:12:18,940 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 02:12:19,988 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:12:20,045 INFO L193 MainTranslator]: Completed translation [2018-10-25 02:12:20,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:20 WrapperNode [2018-10-25 02:12:20,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 02:12:20,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 02:12:20,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 02:12:20,047 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 02:12:20,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:20" (1/1) ... [2018-10-25 02:12:20,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:20" (1/1) ... [2018-10-25 02:12:20,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 02:12:20,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 02:12:20,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 02:12:20,821 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 02:12:20,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:20" (1/1) ... [2018-10-25 02:12:20,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:20" (1/1) ... [2018-10-25 02:12:20,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:20" (1/1) ... [2018-10-25 02:12:20,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:20" (1/1) ... [2018-10-25 02:12:21,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:20" (1/1) ... [2018-10-25 02:12:21,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:20" (1/1) ... [2018-10-25 02:12:21,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:20" (1/1) ... [2018-10-25 02:12:21,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 02:12:21,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 02:12:21,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 02:12:21,267 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 02:12:21,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-25 02:12:21,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 02:12:21,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 02:12:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-25 02:12:21,341 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-25 02:12:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-25 02:12:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-25 02:12:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-25 02:12:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-25 02:12:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-25 02:12:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-25 02:12:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 02:12:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 02:12:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 02:12:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 02:12:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 02:12:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 02:12:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 02:12:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 02:12:38,393 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 02:12:38,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:12:38 BoogieIcfgContainer [2018-10-25 02:12:38,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 02:12:38,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 02:12:38,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 02:12:38,398 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 02:12:38,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 02:12:16" (1/3) ... [2018-10-25 02:12:38,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e77acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:12:38, skipping insertion in model container [2018-10-25 02:12:38,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:20" (2/3) ... [2018-10-25 02:12:38,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e77acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:12:38, skipping insertion in model container [2018-10-25 02:12:38,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:12:38" (3/3) ... [2018-10-25 02:12:38,402 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label23_true-unreach-call.c [2018-10-25 02:12:38,412 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 02:12:38,423 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 02:12:38,441 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 02:12:38,503 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 02:12:38,504 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 02:12:38,504 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 02:12:38,504 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 02:12:38,504 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 02:12:38,504 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 02:12:38,505 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 02:12:38,505 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 02:12:38,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-25 02:12:38,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-10-25 02:12:38,570 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:12:38,571 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:12:38,574 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:12:38,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:12:38,579 INFO L82 PathProgramCache]: Analyzing trace with hash -11956822, now seen corresponding path program 1 times [2018-10-25 02:12:38,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:12:38,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:12:38,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:12:38,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:12:38,639 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:12:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:12:39,087 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:12:39,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:12:39,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:12:39,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 02:12:39,229 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:12:39,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 02:12:39,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 02:12:39,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 02:12:39,257 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-25 02:12:54,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:12:54,818 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-10-25 02:12:54,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 02:12:54,824 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-10-25 02:12:54,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:12:54,873 INFO L225 Difference]: With dead ends: 4999 [2018-10-25 02:12:54,873 INFO L226 Difference]: Without dead ends: 3219 [2018-10-25 02:12:54,889 INFO L605 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 [2018-10-25 02:12:54,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-10-25 02:12:55,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-10-25 02:12:55,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-10-25 02:12:55,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-10-25 02:12:55,110 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 59 [2018-10-25 02:12:55,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:12:55,111 INFO L481 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-10-25 02:12:55,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 02:12:55,111 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-10-25 02:12:55,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-25 02:12:55,123 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:12:55,124 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:12:55,124 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:12:55,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:12:55,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1729747758, now seen corresponding path program 1 times [2018-10-25 02:12:55,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:12:55,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:12:55,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:12:55,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:12:55,130 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:12:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:12:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:12:55,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:12:55,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:12:55,453 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:12:55,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:12:55,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:12:55,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:12:55,456 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-10-25 02:13:22,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:13:22,254 INFO L93 Difference]: Finished difference Result 9343 states and 16923 transitions. [2018-10-25 02:13:22,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 02:13:22,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-10-25 02:13:22,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:13:22,301 INFO L225 Difference]: With dead ends: 9343 [2018-10-25 02:13:22,301 INFO L226 Difference]: Without dead ends: 6134 [2018-10-25 02:13:22,314 INFO L605 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 [2018-10-25 02:13:22,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2018-10-25 02:13:22,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 6093. [2018-10-25 02:13:22,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6093 states. [2018-10-25 02:13:22,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6093 states to 6093 states and 9626 transitions. [2018-10-25 02:13:22,485 INFO L78 Accepts]: Start accepts. Automaton has 6093 states and 9626 transitions. Word has length 131 [2018-10-25 02:13:22,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:13:22,486 INFO L481 AbstractCegarLoop]: Abstraction has 6093 states and 9626 transitions. [2018-10-25 02:13:22,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:13:22,486 INFO L276 IsEmpty]: Start isEmpty. Operand 6093 states and 9626 transitions. [2018-10-25 02:13:22,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-25 02:13:22,493 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:13:22,493 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:13:22,493 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:13:22,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:13:22,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1793375852, now seen corresponding path program 1 times [2018-10-25 02:13:22,494 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:13:22,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:13:22,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:13:22,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:13:22,496 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:13:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:13:22,778 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:13:22,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:13:22,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:13:22,779 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:13:22,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:13:22,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:13:22,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:13:22,781 INFO L87 Difference]: Start difference. First operand 6093 states and 9626 transitions. Second operand 6 states. [2018-10-25 02:14:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:14:05,134 INFO L93 Difference]: Finished difference Result 24260 states and 39731 transitions. [2018-10-25 02:14:05,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-25 02:14:05,135 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-10-25 02:14:05,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:14:05,226 INFO L225 Difference]: With dead ends: 24260 [2018-10-25 02:14:05,227 INFO L226 Difference]: Without dead ends: 18173 [2018-10-25 02:14:05,264 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-25 02:14:05,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18173 states. [2018-10-25 02:14:05,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18173 to 18097. [2018-10-25 02:14:05,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18097 states. [2018-10-25 02:14:05,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18097 states to 18097 states and 25642 transitions. [2018-10-25 02:14:05,726 INFO L78 Accepts]: Start accepts. Automaton has 18097 states and 25642 transitions. Word has length 149 [2018-10-25 02:14:05,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:14:05,726 INFO L481 AbstractCegarLoop]: Abstraction has 18097 states and 25642 transitions. [2018-10-25 02:14:05,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:14:05,727 INFO L276 IsEmpty]: Start isEmpty. Operand 18097 states and 25642 transitions. [2018-10-25 02:14:05,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-25 02:14:05,738 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:14:05,738 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:14:05,739 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:14:05,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:14:05,739 INFO L82 PathProgramCache]: Analyzing trace with hash -808835625, now seen corresponding path program 1 times [2018-10-25 02:14:05,739 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:14:05,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:05,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:14:05,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:05,741 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:14:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:14:06,083 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:14:06,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:14:06,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-25 02:14:06,084 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:14:06,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-25 02:14:06,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-25 02:14:06,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-25 02:14:06,085 INFO L87 Difference]: Start difference. First operand 18097 states and 25642 transitions. Second operand 5 states. [2018-10-25 02:14:31,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:14:31,682 INFO L93 Difference]: Finished difference Result 56359 states and 85060 transitions. [2018-10-25 02:14:31,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 02:14:31,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2018-10-25 02:14:31,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:14:31,826 INFO L225 Difference]: With dead ends: 56359 [2018-10-25 02:14:31,827 INFO L226 Difference]: Without dead ends: 38268 [2018-10-25 02:14:31,891 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-25 02:14:31,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38268 states. [2018-10-25 02:14:32,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38268 to 37211. [2018-10-25 02:14:32,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37211 states. [2018-10-25 02:14:32,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37211 states to 37211 states and 50505 transitions. [2018-10-25 02:14:32,721 INFO L78 Accepts]: Start accepts. Automaton has 37211 states and 50505 transitions. Word has length 194 [2018-10-25 02:14:32,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:14:32,722 INFO L481 AbstractCegarLoop]: Abstraction has 37211 states and 50505 transitions. [2018-10-25 02:14:32,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-25 02:14:32,722 INFO L276 IsEmpty]: Start isEmpty. Operand 37211 states and 50505 transitions. [2018-10-25 02:14:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-10-25 02:14:32,731 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:14:32,731 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:14:32,731 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:14:32,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:14:32,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1152839494, now seen corresponding path program 1 times [2018-10-25 02:14:32,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:14:32,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:32,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:14:32,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:32,733 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:14:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:14:33,230 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 104 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 02:14:33,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:14:33,230 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 02:14:33,231 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-10-25 02:14:33,234 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], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5598], [5600], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5745], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5781], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-25 02:14:33,293 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 02:14:33,294 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 02:14:33,732 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 02:14:33,733 INFO L272 AbstractInterpreter]: Visited 87 different actions 87 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-25 02:14:33,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:14:33,776 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 02:14:34,324 INFO L232 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 75.79% of their original sizes. [2018-10-25 02:14:34,324 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 02:14:34,572 INFO L413 sIntCurrentIteration]: We have 213 unified AI predicates [2018-10-25 02:14:34,572 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 02:14:34,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 02:14:34,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-25 02:14:34,573 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:14:34,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:14:34,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:14:34,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:14:34,575 INFO L87 Difference]: Start difference. First operand 37211 states and 50505 transitions. Second operand 6 states. Received shutdown request... [2018-10-25 02:16:18,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 02:16:18,562 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 02:16:18,567 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 02:16:18,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 02:16:18 BoogieIcfgContainer [2018-10-25 02:16:18,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 02:16:18,569 INFO L168 Benchmark]: Toolchain (without parser) took 242143.73 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-25 02:16:18,570 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 02:16:18,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3617.57 ms. Allocated memory is still 1.5 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. [2018-10-25 02:16:18,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 773.45 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 858.8 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 117.2 MB. Max. memory is 7.1 GB. [2018-10-25 02:16:18,573 INFO L168 Benchmark]: Boogie Preprocessor took 445.63 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. [2018-10-25 02:16:18,574 INFO L168 Benchmark]: RCFGBuilder took 17127.21 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 173.0 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 492.2 MB). Peak memory consumption was 665.2 MB. Max. memory is 7.1 GB. [2018-10-25 02:16:18,575 INFO L168 Benchmark]: TraceAbstraction took 220173.61 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 2.4 GB in the end (delta: -711.0 MB). Peak memory consumption was 960.5 MB. Max. memory is 7.1 GB. [2018-10-25 02:16:18,581 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3617.57 ms. Allocated memory is still 1.5 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 773.45 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 858.8 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 117.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 445.63 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17127.21 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 173.0 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 492.2 MB). Peak memory consumption was 665.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 220173.61 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 2.4 GB in the end (delta: -711.0 MB). Peak memory consumption was 960.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 172]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 172). Cancelled while BasicCegarLoop was constructing difference of abstraction (37211states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (15704 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 220.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 214.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2747 SDtfs, 22502 SDslu, 3002 SDs, 0 SdLazy, 40277 SolverSat, 10293 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 187.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 249 GetRequests, 219 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37211occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9975837678685201 AbsIntWeakeningRatio, 0.1267605633802817 AbsIntAvgWeakeningVarsNumRemoved, 17.356807511737088 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 1178 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 747 NumberOfCodeBlocks, 747 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 742 ConstructedInterpolants, 0 QuantifiedInterpolants, 485718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 265/333 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown