java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label07_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 01:08:57,389 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 01:08:57,391 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 01:08:57,404 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 01:08:57,404 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 01:08:57,405 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 01:08:57,409 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 01:08:57,412 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 01:08:57,418 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 01:08:57,420 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 01:08:57,424 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 01:08:57,424 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 01:08:57,425 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 01:08:57,426 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 01:08:57,430 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 01:08:57,430 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 01:08:57,436 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 01:08:57,437 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 01:08:57,440 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 01:08:57,442 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 01:08:57,445 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 01:08:57,446 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 01:08:57,448 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 01:08:57,449 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 01:08:57,449 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 01:08:57,450 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 01:08:57,451 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 01:08:57,459 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 01:08:57,460 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 01:08:57,461 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 01:08:57,461 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 01:08:57,462 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 01:08:57,462 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 01:08:57,462 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 01:08:57,465 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 01:08:57,466 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 01:08:57,466 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 01:08:57,484 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 01:08:57,484 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 01:08:57,486 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 01:08:57,486 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 01:08:57,486 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 01:08:57,486 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 01:08:57,486 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 01:08:57,487 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 01:08:57,487 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 01:08:57,487 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 01:08:57,487 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 01:08:57,487 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 01:08:57,489 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 01:08:57,489 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 01:08:57,489 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 01:08:57,489 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 01:08:57,490 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 01:08:57,490 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 01:08:57,490 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 01:08:57,490 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 01:08:57,490 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 01:08:57,492 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 01:08:57,493 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 01:08:57,493 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 01:08:57,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 01:08:57,493 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 01:08:57,493 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 01:08:57,494 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 01:08:57,494 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 01:08:57,494 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 01:08:57,494 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 01:08:57,494 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 01:08:57,495 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 01:08:57,495 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 01:08:57,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 01:08:57,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 01:08:57,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 01:08:57,564 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 01:08:57,565 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 01:08:57,565 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label07_true-unreach-call_false-termination.c [2018-11-07 01:08:57,629 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceec5368b/47be680c93d04168b29b75a6a179050a/FLAGc7132b5f1 [2018-11-07 01:08:58,276 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 01:08:58,278 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label07_true-unreach-call_false-termination.c [2018-11-07 01:08:58,302 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceec5368b/47be680c93d04168b29b75a6a179050a/FLAGc7132b5f1 [2018-11-07 01:08:58,328 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceec5368b/47be680c93d04168b29b75a6a179050a [2018-11-07 01:08:58,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 01:08:58,341 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 01:08:58,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 01:08:58,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 01:08:58,346 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 01:08:58,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:58" (1/1) ... [2018-11-07 01:08:58,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f02a909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:58, skipping insertion in model container [2018-11-07 01:08:58,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:58" (1/1) ... [2018-11-07 01:08:58,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 01:08:58,415 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 01:08:58,867 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 01:08:58,873 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 01:08:58,980 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 01:08:58,999 INFO L193 MainTranslator]: Completed translation [2018-11-07 01:08:59,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:59 WrapperNode [2018-11-07 01:08:59,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 01:08:59,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 01:08:59,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 01:08:59,002 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 01:08:59,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:59" (1/1) ... [2018-11-07 01:08:59,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:59" (1/1) ... [2018-11-07 01:08:59,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 01:08:59,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 01:08:59,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 01:08:59,143 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 01:08:59,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:59" (1/1) ... [2018-11-07 01:08:59,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:59" (1/1) ... [2018-11-07 01:08:59,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:59" (1/1) ... [2018-11-07 01:08:59,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:59" (1/1) ... [2018-11-07 01:08:59,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:59" (1/1) ... [2018-11-07 01:08:59,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:59" (1/1) ... [2018-11-07 01:08:59,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:59" (1/1) ... [2018-11-07 01:08:59,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 01:08:59,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 01:08:59,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 01:08:59,273 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 01:08:59,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 01:08:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 01:08:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 01:08:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 01:08:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 01:08:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 01:08:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 01:08:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 01:08:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 01:08:59,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 01:09:02,659 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 01:09:02,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:02 BoogieIcfgContainer [2018-11-07 01:09:02,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 01:09:02,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 01:09:02,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 01:09:02,668 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 01:09:02,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:08:58" (1/3) ... [2018-11-07 01:09:02,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bf892d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:02, skipping insertion in model container [2018-11-07 01:09:02,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:59" (2/3) ... [2018-11-07 01:09:02,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bf892d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:02, skipping insertion in model container [2018-11-07 01:09:02,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:02" (3/3) ... [2018-11-07 01:09:02,675 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label07_true-unreach-call_false-termination.c [2018-11-07 01:09:02,685 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 01:09:02,693 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 01:09:02,707 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 01:09:02,745 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 01:09:02,745 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 01:09:02,746 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 01:09:02,746 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 01:09:02,746 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 01:09:02,747 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 01:09:02,747 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 01:09:02,747 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 01:09:02,777 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-11-07 01:09:02,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-11-07 01:09:02,795 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:09:02,796 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] [2018-11-07 01:09:02,799 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:09:02,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:09:02,805 INFO L82 PathProgramCache]: Analyzing trace with hash 407669344, now seen corresponding path program 1 times [2018-11-07 01:09:02,807 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:09:02,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:09:02,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:09:02,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:09:02,858 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:09:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:09:03,557 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 01:09:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:09:03,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:09:03,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 01:09:03,797 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:09:03,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 01:09:03,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 01:09:03,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:09:03,830 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-11-07 01:09:05,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:09:05,672 INFO L93 Difference]: Finished difference Result 621 states and 1061 transitions. [2018-11-07 01:09:05,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 01:09:05,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2018-11-07 01:09:05,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:09:05,695 INFO L225 Difference]: With dead ends: 621 [2018-11-07 01:09:05,695 INFO L226 Difference]: Without dead ends: 382 [2018-11-07 01:09:05,703 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:09:05,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-11-07 01:09:05,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 380. [2018-11-07 01:09:05,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-11-07 01:09:05,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 641 transitions. [2018-11-07 01:09:05,790 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 641 transitions. Word has length 146 [2018-11-07 01:09:05,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:09:05,792 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 641 transitions. [2018-11-07 01:09:05,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 01:09:05,792 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 641 transitions. [2018-11-07 01:09:05,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-11-07 01:09:05,800 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:09:05,800 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 01:09:05,800 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:09:05,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:09:05,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1067911929, now seen corresponding path program 1 times [2018-11-07 01:09:05,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:09:05,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:09:05,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:09:05,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:09:05,803 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:09:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:09:06,106 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:09:06,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:09:06,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 01:09:06,107 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:09:06,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 01:09:06,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 01:09:06,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:09:06,110 INFO L87 Difference]: Start difference. First operand 380 states and 641 transitions. Second operand 3 states. [2018-11-07 01:09:07,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:09:07,075 INFO L93 Difference]: Finished difference Result 1046 states and 1833 transitions. [2018-11-07 01:09:07,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 01:09:07,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2018-11-07 01:09:07,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:09:07,083 INFO L225 Difference]: With dead ends: 1046 [2018-11-07 01:09:07,083 INFO L226 Difference]: Without dead ends: 672 [2018-11-07 01:09:07,091 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:09:07,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2018-11-07 01:09:07,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2018-11-07 01:09:07,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2018-11-07 01:09:07,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1087 transitions. [2018-11-07 01:09:07,139 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1087 transitions. Word has length 160 [2018-11-07 01:09:07,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:09:07,140 INFO L480 AbstractCegarLoop]: Abstraction has 672 states and 1087 transitions. [2018-11-07 01:09:07,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 01:09:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1087 transitions. [2018-11-07 01:09:07,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-11-07 01:09:07,147 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:09:07,147 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:09:07,148 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:09:07,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:09:07,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1952458612, now seen corresponding path program 1 times [2018-11-07 01:09:07,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:09:07,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:09:07,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:09:07,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:09:07,150 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:09:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:09:07,525 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 01:09:07,814 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 80 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:09:07,815 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 01:09:07,815 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 01:09:07,816 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-11-07 01:09:07,819 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [336], [341], [343], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [819], [827], [835], [839], [841], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-07 01:09:07,902 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 01:09:07,902 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 01:09:23,484 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 01:09:23,486 INFO L272 AbstractInterpreter]: Visited 147 different actions 147 times. Never merged. Never widened. Never found a fixpoint. Largest state had 38 variables. [2018-11-07 01:09:23,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:09:23,500 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 01:09:30,140 INFO L227 lantSequenceWeakener]: Weakened 210 states. On average, predicates are now at 81.42% of their original sizes. [2018-11-07 01:09:30,140 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 01:09:34,021 INFO L415 sIntCurrentIteration]: We unified 232 AI predicates to 232 [2018-11-07 01:09:34,022 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 01:09:34,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 01:09:34,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [9] total 21 [2018-11-07 01:09:34,023 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:09:34,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-07 01:09:34,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-07 01:09:34,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-11-07 01:09:34,025 INFO L87 Difference]: Start difference. First operand 672 states and 1087 transitions. Second operand 14 states. [2018-11-07 01:11:11,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:11:11,587 INFO L93 Difference]: Finished difference Result 1638 states and 2619 transitions. [2018-11-07 01:11:11,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-07 01:11:11,587 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 233 [2018-11-07 01:11:11,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:11:11,593 INFO L225 Difference]: With dead ends: 1638 [2018-11-07 01:11:11,594 INFO L226 Difference]: Without dead ends: 972 [2018-11-07 01:11:11,597 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 245 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2018-11-07 01:11:11,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2018-11-07 01:11:11,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 819. [2018-11-07 01:11:11,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2018-11-07 01:11:11,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1242 transitions. [2018-11-07 01:11:11,694 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1242 transitions. Word has length 233 [2018-11-07 01:11:11,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:11:11,695 INFO L480 AbstractCegarLoop]: Abstraction has 819 states and 1242 transitions. [2018-11-07 01:11:11,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-07 01:11:11,695 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1242 transitions. [2018-11-07 01:11:11,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-11-07 01:11:11,701 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:11:11,701 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:11:11,702 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:11:11,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:11:11,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1196753867, now seen corresponding path program 1 times [2018-11-07 01:11:11,702 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:11:11,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:11:11,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:11:11,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:11:11,704 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:11:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:11:12,039 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 92 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 01:11:12,040 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 01:11:12,040 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 01:11:12,040 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 244 with the following transitions: [2018-11-07 01:11:12,041 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [336], [341], [343], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [819], [827], [835], [839], [841], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-07 01:11:12,048 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 01:11:12,049 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 01:12:18,716 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 01:12:18,716 INFO L272 AbstractInterpreter]: Visited 151 different actions 592 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 38 variables. [2018-11-07 01:12:18,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:12:18,726 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 01:12:24,498 INFO L227 lantSequenceWeakener]: Weakened 74 states. On average, predicates are now at 82.96% of their original sizes. [2018-11-07 01:12:24,498 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-11-07 01:13:13,323 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 01:13:13,329 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 01:13:13,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:13:13 BoogieIcfgContainer [2018-11-07 01:13:13,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 01:13:13,330 INFO L168 Benchmark]: Toolchain (without parser) took 254990.42 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 2.0 GB in the end (delta: -572.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 01:13:13,332 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 01:13:13,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 01:13:13,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 141.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -819.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2018-11-07 01:13:13,334 INFO L168 Benchmark]: Boogie Preprocessor took 129.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2018-11-07 01:13:13,335 INFO L168 Benchmark]: RCFGBuilder took 3386.88 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.4 MB). Peak memory consumption was 105.4 MB. Max. memory is 7.1 GB. [2018-11-07 01:13:13,336 INFO L168 Benchmark]: TraceAbstraction took 250666.66 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 95.5 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 01:13:13,342 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 658.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 141.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -819.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3386.88 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.4 MB). Peak memory consumption was 105.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 250666.66 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 95.5 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 589]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 589). Cancelled while BasicCegarLoop was analyzing trace of length 244 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 250.5s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 100.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 537 SDtfs, 1314 SDslu, 499 SDs, 0 SdLazy, 1596 SolverSat, 459 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 56.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 254 GetRequests, 225 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=819occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 82.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9960941954612837 AbsIntWeakeningRatio, 0.16033755274261605 AbsIntAvgWeakeningVarsNumRemoved, 1470.276371308017 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 155 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 539 NumberOfCodeBlocks, 539 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 536 ConstructedInterpolants, 0 QuantifiedInterpolants, 354421 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 91/99 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown