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/Problem13_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 07:58:49,361 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 07:58:49,363 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 07:58:49,375 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 07:58:49,376 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 07:58:49,377 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 07:58:49,378 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 07:58:49,380 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 07:58:49,381 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 07:58:49,382 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 07:58:49,383 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 07:58:49,383 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 07:58:49,384 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 07:58:49,385 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 07:58:49,386 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 07:58:49,387 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 07:58:49,391 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 07:58:49,393 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 07:58:49,396 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 07:58:49,400 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 07:58:49,404 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 07:58:49,405 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 07:58:49,408 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 07:58:49,409 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 07:58:49,409 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 07:58:49,410 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 07:58:49,411 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 07:58:49,412 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 07:58:49,412 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 07:58:49,415 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 07:58:49,416 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 07:58:49,417 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 07:58:49,417 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 07:58:49,417 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 07:58:49,420 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 07:58:49,421 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 07:58:49,422 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 [2018-10-27 07:58:49,451 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 07:58:49,451 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 07:58:49,452 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 07:58:49,452 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 07:58:49,453 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 07:58:49,453 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 07:58:49,453 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 07:58:49,453 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 07:58:49,453 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 07:58:49,454 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 07:58:49,454 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 07:58:49,454 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 07:58:49,454 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 07:58:49,454 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 07:58:49,455 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 07:58:49,455 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 07:58:49,455 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 07:58:49,456 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 07:58:49,456 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 07:58:49,456 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 07:58:49,456 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 07:58:49,456 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 07:58:49,456 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 07:58:49,457 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 07:58:49,457 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 07:58:49,457 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 07:58:49,457 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 07:58:49,457 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 07:58:49,458 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 07:58:49,458 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 07:58:49,458 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 07:58:49,458 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 07:58:49,458 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 07:58:49,459 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 07:58:49,460 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 07:58:49,460 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 07:58:49,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 07:58:49,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 07:58:49,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 07:58:49,569 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 07:58:49,570 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 07:58:49,572 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label47_true-unreach-call.c [2018-10-27 07:58:49,626 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c7fda02a/ce3350db20e442fa87ba971fa44c171c/FLAG391e9aef9 [2018-10-27 07:58:50,410 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 07:58:50,411 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label47_true-unreach-call.c [2018-10-27 07:58:50,448 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c7fda02a/ce3350db20e442fa87ba971fa44c171c/FLAG391e9aef9 [2018-10-27 07:58:50,467 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c7fda02a/ce3350db20e442fa87ba971fa44c171c [2018-10-27 07:58:50,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 07:58:50,482 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 07:58:50,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 07:58:50,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 07:58:50,487 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 07:58:50,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:58:50" (1/1) ... [2018-10-27 07:58:50,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8de4687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:50, skipping insertion in model container [2018-10-27 07:58:50,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:58:50" (1/1) ... [2018-10-27 07:58:50,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 07:58:50,702 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 07:58:52,179 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:58:52,184 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 07:58:52,961 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:58:52,997 INFO L193 MainTranslator]: Completed translation [2018-10-27 07:58:52,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:52 WrapperNode [2018-10-27 07:58:52,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 07:58:52,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 07:58:52,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 07:58:52,999 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 07:58:53,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:52" (1/1) ... [2018-10-27 07:58:53,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:52" (1/1) ... [2018-10-27 07:58:53,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 07:58:53,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 07:58:53,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 07:58:53,607 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 07:58:53,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:52" (1/1) ... [2018-10-27 07:58:53,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:52" (1/1) ... [2018-10-27 07:58:53,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:52" (1/1) ... [2018-10-27 07:58:53,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:52" (1/1) ... [2018-10-27 07:58:53,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:52" (1/1) ... [2018-10-27 07:58:53,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:52" (1/1) ... [2018-10-27 07:58:53,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:52" (1/1) ... [2018-10-27 07:58:53,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 07:58:53,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 07:58:53,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 07:58:53,979 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 07:58:53,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:52" (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 [2018-10-27 07:58:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 07:58:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 07:58:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 07:58:54,054 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 07:58:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 07:58:54,054 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 07:58:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 07:58:54,055 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 07:58:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 07:58:54,056 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 07:58:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 07:58:54,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 07:58:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 07:58:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 07:59:04,397 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 07:59:04,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:59:04 BoogieIcfgContainer [2018-10-27 07:59:04,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 07:59:04,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 07:59:04,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 07:59:04,403 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 07:59:04,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:58:50" (1/3) ... [2018-10-27 07:59:04,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5791cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:59:04, skipping insertion in model container [2018-10-27 07:59:04,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:52" (2/3) ... [2018-10-27 07:59:04,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5791cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:59:04, skipping insertion in model container [2018-10-27 07:59:04,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:59:04" (3/3) ... [2018-10-27 07:59:04,406 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label47_true-unreach-call.c [2018-10-27 07:59:04,417 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 07:59:04,428 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 07:59:04,445 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 07:59:04,493 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 07:59:04,493 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 07:59:04,494 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 07:59:04,494 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 07:59:04,494 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 07:59:04,494 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 07:59:04,494 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 07:59:04,494 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 07:59:04,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-27 07:59:04,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-27 07:59:04,552 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:59:04,554 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] [2018-10-27 07:59:04,556 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:59:04,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:59:04,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1678740780, now seen corresponding path program 1 times [2018-10-27 07:59:04,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:59:04,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:04,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:59:04,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:04,615 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:59:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:59:05,044 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 07:59:05,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:59:05,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:59:05,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 07:59:05,138 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:59:05,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 07:59:05,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 07:59:05,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 07:59:05,165 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-10-27 07:59:17,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:59:17,454 INFO L93 Difference]: Finished difference Result 3104 states and 5729 transitions. [2018-10-27 07:59:17,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 07:59:17,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-10-27 07:59:17,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:59:17,493 INFO L225 Difference]: With dead ends: 3104 [2018-10-27 07:59:17,493 INFO L226 Difference]: Without dead ends: 1982 [2018-10-27 07:59:17,505 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 07:59:17,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2018-10-27 07:59:17,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1965. [2018-10-27 07:59:17,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2018-10-27 07:59:17,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 3515 transitions. [2018-10-27 07:59:17,675 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 3515 transitions. Word has length 50 [2018-10-27 07:59:17,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:59:17,675 INFO L481 AbstractCegarLoop]: Abstraction has 1965 states and 3515 transitions. [2018-10-27 07:59:17,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 07:59:17,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 3515 transitions. [2018-10-27 07:59:17,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-27 07:59:17,690 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:59:17,690 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] [2018-10-27 07:59:17,691 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:59:17,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:59:17,691 INFO L82 PathProgramCache]: Analyzing trace with hash 307608752, now seen corresponding path program 1 times [2018-10-27 07:59:17,691 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:59:17,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:17,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:59:17,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:17,693 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:59:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:59:18,214 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:59:18,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:59:18,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 07:59:18,215 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:59:18,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 07:59:18,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 07:59:18,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 07:59:18,218 INFO L87 Difference]: Start difference. First operand 1965 states and 3515 transitions. Second operand 5 states. [2018-10-27 07:59:34,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:59:34,504 INFO L93 Difference]: Finished difference Result 5645 states and 10294 transitions. [2018-10-27 07:59:34,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 07:59:34,505 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2018-10-27 07:59:34,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:59:34,529 INFO L225 Difference]: With dead ends: 5645 [2018-10-27 07:59:34,530 INFO L226 Difference]: Without dead ends: 3686 [2018-10-27 07:59:34,537 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 07:59:34,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2018-10-27 07:59:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3654. [2018-10-27 07:59:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3654 states. [2018-10-27 07:59:34,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 5960 transitions. [2018-10-27 07:59:34,662 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 5960 transitions. Word has length 120 [2018-10-27 07:59:34,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:59:34,663 INFO L481 AbstractCegarLoop]: Abstraction has 3654 states and 5960 transitions. [2018-10-27 07:59:34,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 07:59:34,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5960 transitions. [2018-10-27 07:59:34,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-10-27 07:59:34,675 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:59:34,675 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] [2018-10-27 07:59:34,676 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:59:34,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:59:34,676 INFO L82 PathProgramCache]: Analyzing trace with hash 778030412, now seen corresponding path program 1 times [2018-10-27 07:59:34,676 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:59:34,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:34,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:59:34,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:34,679 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:59:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:59:35,056 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:59:35,057 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:59:35,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 07:59:35,057 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:59:35,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 07:59:35,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 07:59:35,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 07:59:35,058 INFO L87 Difference]: Start difference. First operand 3654 states and 5960 transitions. Second operand 5 states. [2018-10-27 07:59:54,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:59:54,530 INFO L93 Difference]: Finished difference Result 10942 states and 18366 transitions. [2018-10-27 07:59:54,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 07:59:54,531 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2018-10-27 07:59:54,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:59:54,589 INFO L225 Difference]: With dead ends: 10942 [2018-10-27 07:59:54,589 INFO L226 Difference]: Without dead ends: 7294 [2018-10-27 07:59:54,605 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 07:59:54,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7294 states. [2018-10-27 07:59:54,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7294 to 7137. [2018-10-27 07:59:54,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7137 states. [2018-10-27 07:59:54,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7137 states to 7137 states and 10864 transitions. [2018-10-27 07:59:54,843 INFO L78 Accepts]: Start accepts. Automaton has 7137 states and 10864 transitions. Word has length 122 [2018-10-27 07:59:54,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:59:54,844 INFO L481 AbstractCegarLoop]: Abstraction has 7137 states and 10864 transitions. [2018-10-27 07:59:54,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 07:59:54,846 INFO L276 IsEmpty]: Start isEmpty. Operand 7137 states and 10864 transitions. [2018-10-27 07:59:54,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-27 07:59:54,849 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:59:54,849 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] [2018-10-27 07:59:54,849 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:59:54,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:59:54,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1974086272, now seen corresponding path program 1 times [2018-10-27 07:59:54,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:59:54,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:54,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:59:54,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:54,852 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:59:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:59:55,063 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:59:55,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:59:55,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 07:59:55,064 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:59:55,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 07:59:55,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 07:59:55,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 07:59:55,066 INFO L87 Difference]: Start difference. First operand 7137 states and 10864 transitions. Second operand 3 states. [2018-10-27 08:00:01,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:00:01,650 INFO L93 Difference]: Finished difference Result 20912 states and 33132 transitions. [2018-10-27 08:00:01,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 08:00:01,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2018-10-27 08:00:01,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:00:01,746 INFO L225 Difference]: With dead ends: 20912 [2018-10-27 08:00:01,746 INFO L226 Difference]: Without dead ends: 13781 [2018-10-27 08:00:01,805 INFO L605 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 [2018-10-27 08:00:01,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13781 states. [2018-10-27 08:00:02,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13781 to 13775. [2018-10-27 08:00:02,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13775 states. [2018-10-27 08:00:02,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13775 states to 13775 states and 20149 transitions. [2018-10-27 08:00:02,379 INFO L78 Accepts]: Start accepts. Automaton has 13775 states and 20149 transitions. Word has length 144 [2018-10-27 08:00:02,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:00:02,380 INFO L481 AbstractCegarLoop]: Abstraction has 13775 states and 20149 transitions. [2018-10-27 08:00:02,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 08:00:02,381 INFO L276 IsEmpty]: Start isEmpty. Operand 13775 states and 20149 transitions. [2018-10-27 08:00:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-10-27 08:00:02,392 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:00:02,392 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 08:00:02,393 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:00:02,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:00:02,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1974647027, now seen corresponding path program 1 times [2018-10-27 08:00:02,393 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:00:02,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:00:02,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:00:02,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:00:02,395 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:00:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:00:02,716 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:00:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 86 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 08:00:03,084 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:00:03,084 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:00:03,085 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-10-27 08:00:03,088 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2927], [2929], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3202], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3273], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-27 08:00:03,138 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:00:03,139 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:00:03,716 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:00:03,718 INFO L272 AbstractInterpreter]: Visited 108 different actions 108 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 08:00:03,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:00:03,751 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:00:04,350 INFO L227 lantSequenceWeakener]: Weakened 231 states. On average, predicates are now at 71.3% of their original sizes. [2018-10-27 08:00:04,351 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:00:04,469 INFO L415 sIntCurrentIteration]: We unified 239 AI predicates to 239 [2018-10-27 08:00:04,469 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:00:04,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:00:04,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-27 08:00:04,471 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:00:04,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:00:04,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:00:04,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:00:04,472 INFO L87 Difference]: Start difference. First operand 13775 states and 20149 transitions. Second operand 6 states. Received shutdown request... [2018-10-27 08:02:56,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 08:02:56,648 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 08:02:56,655 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 08:02:56,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:02:56 BoogieIcfgContainer [2018-10-27 08:02:56,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 08:02:56,657 INFO L168 Benchmark]: Toolchain (without parser) took 246176.34 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 435.3 MB. Max. memory is 7.1 GB. [2018-10-27 08:02:56,658 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 08:02:56,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2515.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-27 08:02:56,659 INFO L168 Benchmark]: Boogie Procedure Inliner took 607.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 811.6 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2018-10-27 08:02:56,660 INFO L168 Benchmark]: Boogie Preprocessor took 372.19 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: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 7.1 GB. [2018-10-27 08:02:56,661 INFO L168 Benchmark]: RCFGBuilder took 10419.14 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 190.3 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 8.5 MB). Peak memory consumption was 658.1 MB. Max. memory is 7.1 GB. [2018-10-27 08:02:56,662 INFO L168 Benchmark]: TraceAbstraction took 232256.81 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 212.3 MB. Max. memory is 7.1 GB. [2018-10-27 08:02:56,668 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 2515.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 607.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 811.6 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 372.19 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: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10419.14 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 190.3 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 8.5 MB). Peak memory consumption was 658.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232256.81 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 212.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 141). Cancelled while BasicCegarLoop was constructing difference of abstraction (13775states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14978 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 232.1s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 227.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2818 SDtfs, 10067 SDslu, 1934 SDs, 0 SdLazy, 17249 SolverSat, 4644 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 194.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 268 GetRequests, 246 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13775occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9978466215732 AbsIntWeakeningRatio, 0.11297071129707113 AbsIntAvgWeakeningVarsNumRemoved, 16.422594142259413 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 212 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 676 NumberOfCodeBlocks, 676 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 671 ConstructedInterpolants, 0 QuantifiedInterpolants, 307644 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 220/302 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown