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/Problem03_label34_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 00:16:50,330 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 00:16:50,332 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 00:16:50,347 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 00:16:50,347 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 00:16:50,348 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 00:16:50,349 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 00:16:50,351 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 00:16:50,353 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 00:16:50,353 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 00:16:50,354 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 00:16:50,355 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 00:16:50,356 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 00:16:50,357 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 00:16:50,358 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 00:16:50,359 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 00:16:50,360 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 00:16:50,361 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 00:16:50,364 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 00:16:50,365 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 00:16:50,366 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 00:16:50,367 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 00:16:50,370 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 00:16:50,370 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 00:16:50,371 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 00:16:50,372 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 00:16:50,373 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 00:16:50,374 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 00:16:50,374 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 00:16:50,376 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 00:16:50,376 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 00:16:50,377 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-25 00:16:50,379 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 00:16:50,395 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 00:16:50,395 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 00:16:50,396 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 00:16:50,396 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 00:16:50,396 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 00:16:50,397 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 00:16:50,397 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 00:16:50,397 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 00:16:50,397 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 00:16:50,397 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 00:16:50,398 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 00:16:50,398 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 00:16:50,398 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 00:16:50,398 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 00:16:50,399 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 00:16:50,399 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 00:16:50,399 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 00:16:50,399 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 00:16:50,400 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 00:16:50,400 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 00:16:50,400 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 00:16:50,400 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 00:16:50,400 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 00:16:50,401 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 00:16:50,401 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 00:16:50,401 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 00:16:50,401 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 00:16:50,401 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 00:16:50,402 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 00:16:50,402 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 00:16:50,402 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 00:16:50,402 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 00:16:50,402 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 00:16:50,403 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 00:16:50,403 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 00:16:50,403 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 00:16:50,469 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 00:16:50,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 00:16:50,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 00:16:50,490 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 00:16:50,490 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 00:16:50,491 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label34_true-unreach-call.c [2018-10-25 00:16:50,550 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e7bf8d316/84832bbbcd7449c7aa87a58f1a080034/FLAGe54a33597 [2018-10-25 00:16:51,199 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 00:16:51,200 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label34_true-unreach-call.c [2018-10-25 00:16:51,217 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e7bf8d316/84832bbbcd7449c7aa87a58f1a080034/FLAGe54a33597 [2018-10-25 00:16:51,233 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e7bf8d316/84832bbbcd7449c7aa87a58f1a080034 [2018-10-25 00:16:51,244 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 00:16:51,246 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 00:16:51,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 00:16:51,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 00:16:51,251 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 00:16:51,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:16:51" (1/1) ... [2018-10-25 00:16:51,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a216523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:51, skipping insertion in model container [2018-10-25 00:16:51,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:16:51" (1/1) ... [2018-10-25 00:16:51,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 00:16:51,351 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 00:16:52,191 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:16:52,197 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 00:16:52,450 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:16:52,477 INFO L193 MainTranslator]: Completed translation [2018-10-25 00:16:52,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:52 WrapperNode [2018-10-25 00:16:52,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 00:16:52,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 00:16:52,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 00:16:52,479 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 00:16:52,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:52" (1/1) ... [2018-10-25 00:16:52,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:52" (1/1) ... [2018-10-25 00:16:52,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 00:16:52,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 00:16:52,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 00:16:52,778 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 00:16:52,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:52" (1/1) ... [2018-10-25 00:16:52,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:52" (1/1) ... [2018-10-25 00:16:52,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:52" (1/1) ... [2018-10-25 00:16:52,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:52" (1/1) ... [2018-10-25 00:16:52,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:52" (1/1) ... [2018-10-25 00:16:52,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:52" (1/1) ... [2018-10-25 00:16:52,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:52" (1/1) ... [2018-10-25 00:16:52,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 00:16:52,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 00:16:52,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 00:16:52,890 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 00:16:52,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:52" (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 00:16:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 00:16:52,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 00:16:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 00:16:52,964 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 00:16:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 00:16:52,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 00:16:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 00:16:52,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 00:16:57,861 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 00:16:57,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:16:57 BoogieIcfgContainer [2018-10-25 00:16:57,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 00:16:57,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 00:16:57,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 00:16:57,867 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 00:16:57,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 12:16:51" (1/3) ... [2018-10-25 00:16:57,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b77d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:16:57, skipping insertion in model container [2018-10-25 00:16:57,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:16:52" (2/3) ... [2018-10-25 00:16:57,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b77d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:16:57, skipping insertion in model container [2018-10-25 00:16:57,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:16:57" (3/3) ... [2018-10-25 00:16:57,871 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label34_true-unreach-call.c [2018-10-25 00:16:57,881 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 00:16:57,890 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 00:16:57,908 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 00:16:57,949 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 00:16:57,949 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 00:16:57,949 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 00:16:57,949 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 00:16:57,949 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 00:16:57,950 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 00:16:57,950 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 00:16:57,950 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 00:16:57,980 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-25 00:16:58,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-10-25 00:16:58,002 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:16:58,003 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:16:58,007 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:16:58,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:16:58,015 INFO L82 PathProgramCache]: Analyzing trace with hash 483318420, now seen corresponding path program 1 times [2018-10-25 00:16:58,017 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:16:58,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:16:58,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:16:58,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:16:58,066 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:16:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:16:58,992 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-25 00:16:59,340 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 00:16:59,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:16:59,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 00:16:59,343 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:16:59,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 00:16:59,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 00:16:59,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 00:16:59,369 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-25 00:17:03,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:03,136 INFO L93 Difference]: Finished difference Result 1074 states and 1924 transitions. [2018-10-25 00:17:03,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 00:17:03,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 197 [2018-10-25 00:17:03,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:03,163 INFO L225 Difference]: With dead ends: 1074 [2018-10-25 00:17:03,164 INFO L226 Difference]: Without dead ends: 756 [2018-10-25 00:17:03,172 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 00:17:03,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2018-10-25 00:17:03,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 520. [2018-10-25 00:17:03,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2018-10-25 00:17:03,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 919 transitions. [2018-10-25 00:17:03,268 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 919 transitions. Word has length 197 [2018-10-25 00:17:03,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:03,270 INFO L481 AbstractCegarLoop]: Abstraction has 520 states and 919 transitions. [2018-10-25 00:17:03,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 00:17:03,270 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 919 transitions. [2018-10-25 00:17:03,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-10-25 00:17:03,279 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:03,280 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:03,280 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:03,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:03,281 INFO L82 PathProgramCache]: Analyzing trace with hash 873411633, now seen corresponding path program 1 times [2018-10-25 00:17:03,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:03,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:03,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:03,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:03,282 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:03,713 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 00:17:03,882 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:17:03,882 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:17:03,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 00:17:03,883 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:03,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 00:17:03,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 00:17:03,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 00:17:03,886 INFO L87 Difference]: Start difference. First operand 520 states and 919 transitions. Second operand 6 states. [2018-10-25 00:17:08,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:08,001 INFO L93 Difference]: Finished difference Result 1482 states and 2700 transitions. [2018-10-25 00:17:08,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 00:17:08,004 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2018-10-25 00:17:08,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:08,013 INFO L225 Difference]: With dead ends: 1482 [2018-10-25 00:17:08,014 INFO L226 Difference]: Without dead ends: 968 [2018-10-25 00:17:08,017 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 00:17:08,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2018-10-25 00:17:08,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 949. [2018-10-25 00:17:08,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2018-10-25 00:17:08,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1579 transitions. [2018-10-25 00:17:08,074 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1579 transitions. Word has length 225 [2018-10-25 00:17:08,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:08,074 INFO L481 AbstractCegarLoop]: Abstraction has 949 states and 1579 transitions. [2018-10-25 00:17:08,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 00:17:08,075 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1579 transitions. [2018-10-25 00:17:08,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-10-25 00:17:08,081 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:08,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:08,083 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:08,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:08,084 INFO L82 PathProgramCache]: Analyzing trace with hash -2108795236, now seen corresponding path program 1 times [2018-10-25 00:17:08,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:08,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:08,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:08,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:08,086 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:08,426 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 9 [2018-10-25 00:17:08,571 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:17:08,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:17:08,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 00:17:08,572 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:08,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 00:17:08,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 00:17:08,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-25 00:17:08,573 INFO L87 Difference]: Start difference. First operand 949 states and 1579 transitions. Second operand 6 states. [2018-10-25 00:17:12,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:17:12,285 INFO L93 Difference]: Finished difference Result 2438 states and 4009 transitions. [2018-10-25 00:17:12,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-25 00:17:12,286 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 243 [2018-10-25 00:17:12,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:17:12,297 INFO L225 Difference]: With dead ends: 2438 [2018-10-25 00:17:12,298 INFO L226 Difference]: Without dead ends: 1495 [2018-10-25 00:17:12,302 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-25 00:17:12,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2018-10-25 00:17:12,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1450. [2018-10-25 00:17:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-10-25 00:17:12,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 2315 transitions. [2018-10-25 00:17:12,432 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 2315 transitions. Word has length 243 [2018-10-25 00:17:12,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:17:12,432 INFO L481 AbstractCegarLoop]: Abstraction has 1450 states and 2315 transitions. [2018-10-25 00:17:12,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 00:17:12,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 2315 transitions. [2018-10-25 00:17:12,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-10-25 00:17:12,442 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:17:12,442 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:12,443 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:17:12,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:12,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1365448965, now seen corresponding path program 1 times [2018-10-25 00:17:12,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:17:12,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:12,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:17:12,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:17:12,445 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:17:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:17:12,721 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 00:17:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 45 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 00:17:12,768 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:17:12,768 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:17:12,769 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 251 with the following transitions: [2018-10-25 00:17:12,772 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [71], [75], [76], [80], [84], [88], [92], [95], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1037], [1039], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:17:12,855 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:17:12,855 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:17:13,993 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:17:13,995 INFO L272 AbstractInterpreter]: Visited 198 different actions 198 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-10-25 00:17:14,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:17:14,044 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:17:15,328 INFO L232 lantSequenceWeakener]: Weakened 239 states. On average, predicates are now at 73.68% of their original sizes. [2018-10-25 00:17:15,329 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:17:15,950 INFO L413 sIntCurrentIteration]: We have 249 unified AI predicates [2018-10-25 00:17:15,951 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:17:15,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:17:15,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-10-25 00:17:15,952 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:17:15,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-25 00:17:15,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-25 00:17:15,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-10-25 00:17:15,954 INFO L87 Difference]: Start difference. First operand 1450 states and 2315 transitions. Second operand 13 states. [2018-10-25 00:18:09,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:18:09,227 INFO L93 Difference]: Finished difference Result 3104 states and 4941 transitions. [2018-10-25 00:18:09,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 00:18:09,227 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 250 [2018-10-25 00:18:09,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:18:09,236 INFO L225 Difference]: With dead ends: 3104 [2018-10-25 00:18:09,237 INFO L226 Difference]: Without dead ends: 1660 [2018-10-25 00:18:09,241 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 250 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2018-10-25 00:18:09,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2018-10-25 00:18:09,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1658. [2018-10-25 00:18:09,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1658 states. [2018-10-25 00:18:09,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 2533 transitions. [2018-10-25 00:18:09,295 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 2533 transitions. Word has length 250 [2018-10-25 00:18:09,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:18:09,296 INFO L481 AbstractCegarLoop]: Abstraction has 1658 states and 2533 transitions. [2018-10-25 00:18:09,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-25 00:18:09,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 2533 transitions. [2018-10-25 00:18:09,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-10-25 00:18:09,304 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:18:09,304 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:18:09,304 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:18:09,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:18:09,305 INFO L82 PathProgramCache]: Analyzing trace with hash -2002626232, now seen corresponding path program 1 times [2018-10-25 00:18:09,305 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:18:09,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:09,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:18:09,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:09,307 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:18:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:18:09,625 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 00:18:10,043 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 60 proven. 27 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-10-25 00:18:10,044 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:18:10,044 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:18:10,044 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-10-25 00:18:10,045 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [71], [75], [76], [80], [84], [88], [92], [95], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1037], [1039], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:18:10,057 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:18:10,057 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:18:11,143 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:18:11,144 INFO L272 AbstractInterpreter]: Visited 202 different actions 398 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:18:11,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:18:11,149 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:18:12,978 INFO L232 lantSequenceWeakener]: Weakened 257 states. On average, predicates are now at 73.52% of their original sizes. [2018-10-25 00:18:12,978 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:18:13,374 INFO L413 sIntCurrentIteration]: We have 261 unified AI predicates [2018-10-25 00:18:13,374 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:18:13,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:18:13,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-10-25 00:18:13,375 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:18:13,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-25 00:18:13,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-25 00:18:13,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2018-10-25 00:18:13,376 INFO L87 Difference]: Start difference. First operand 1658 states and 2533 transitions. Second operand 20 states. [2018-10-25 00:19:23,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:19:23,269 INFO L93 Difference]: Finished difference Result 3316 states and 5163 transitions. [2018-10-25 00:19:23,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 00:19:23,269 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 262 [2018-10-25 00:19:23,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:19:23,278 INFO L225 Difference]: With dead ends: 3316 [2018-10-25 00:19:23,279 INFO L226 Difference]: Without dead ends: 1872 [2018-10-25 00:19:23,284 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 270 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=180, Invalid=632, Unknown=0, NotChecked=0, Total=812 [2018-10-25 00:19:23,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2018-10-25 00:19:23,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1869. [2018-10-25 00:19:23,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1869 states. [2018-10-25 00:19:23,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 2759 transitions. [2018-10-25 00:19:23,335 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 2759 transitions. Word has length 262 [2018-10-25 00:19:23,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:19:23,336 INFO L481 AbstractCegarLoop]: Abstraction has 1869 states and 2759 transitions. [2018-10-25 00:19:23,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-25 00:19:23,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 2759 transitions. [2018-10-25 00:19:23,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-10-25 00:19:23,344 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:19:23,344 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:23,344 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:19:23,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:23,345 INFO L82 PathProgramCache]: Analyzing trace with hash -380211411, now seen corresponding path program 1 times [2018-10-25 00:19:23,345 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:19:23,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:23,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:19:23,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:23,346 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:19:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:19:23,787 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:19:23,788 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:19:23,788 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:19:23,788 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-10-25 00:19:23,789 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [174], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1037], [1039], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:19:23,799 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:19:23,805 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:19:26,597 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:19:26,598 INFO L272 AbstractInterpreter]: Visited 201 different actions 395 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:19:26,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:26,604 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:19:29,999 INFO L232 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 77.91% of their original sizes. [2018-10-25 00:19:30,000 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:19:39,088 INFO L413 sIntCurrentIteration]: We have 264 unified AI predicates [2018-10-25 00:19:39,089 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:19:39,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:19:39,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-10-25 00:19:39,089 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:19:39,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-25 00:19:39,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-25 00:19:39,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-10-25 00:19:39,091 INFO L87 Difference]: Start difference. First operand 1869 states and 2759 transitions. Second operand 14 states. Received shutdown request... [2018-10-25 00:20:58,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-25 00:20:58,926 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 00:20:58,933 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 00:20:58,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 12:20:58 BoogieIcfgContainer [2018-10-25 00:20:58,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 00:20:58,934 INFO L168 Benchmark]: Toolchain (without parser) took 247689.57 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 333.4 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-10-25 00:20:58,935 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 00:20:58,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1230.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-25 00:20:58,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 299.06 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 734.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -854.6 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-25 00:20:58,937 INFO L168 Benchmark]: Boogie Preprocessor took 112.06 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-10-25 00:20:58,938 INFO L168 Benchmark]: RCFGBuilder took 4972.29 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 260.3 MB). Peak memory consumption was 260.3 MB. Max. memory is 7.1 GB. [2018-10-25 00:20:58,939 INFO L168 Benchmark]: TraceAbstraction took 241070.16 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.1 GB in the end (delta: 839.8 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-10-25 00:20:58,944 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1230.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 299.06 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 734.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -854.6 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.06 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4972.29 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 260.3 MB). Peak memory consumption was 260.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241070.16 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.1 GB in the end (delta: 839.8 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1605]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1605). Cancelled while BasicCegarLoop was constructing difference of abstraction (1869states) and FLOYD_HOARE automaton (currently 16 states, 14 states before enhancement),while ReachableStatesComputation was computing reachable states (2726 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 240.9s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 214.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1295 SDtfs, 7510 SDslu, 2057 SDs, 0 SdLazy, 14273 SolverSat, 1346 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 163.9s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 817 GetRequests, 589 SyntacticMatches, 155 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1869occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.1s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9991385482959577 AbsIntWeakeningRatio, 0.2648578811369509 AbsIntAvgWeakeningVarsNumRemoved, 20.055555555555557 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 305 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1442 NumberOfCodeBlocks, 1442 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1436 ConstructedInterpolants, 0 QuantifiedInterpolants, 1122857 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 274/321 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown